Converter heat sink and control method thereof

Abstract

The application relates to the technical field of converter heat dissipation, in particular to a converter heat dissipation device and a control method thereof, which comprises a plurality of vertically arranged heat dissipation units, and further comprises: a plurality of central heat conduction blocks arranged in the middle of the heat dissipation units along the horizontal direction, a plurality of central heat conduction sleeves are arranged through the middle of the central heat conduction blocks in the horizontal direction, a U-shaped heat pipe is arranged in the central heat conduction block, and a rear end heat dissipation block is arranged at the rear end of the U-shaped heat pipe. The application drives all horizontal heat pipes to slide synchronously left and right through the translation linkage frame to adjust the length of the horizontal heat pipe in the corresponding horizontal heat conduction sleeve, and then adjusts the heat dissipation effect and power of the corresponding heat dissipation bottom plate and power element mounting plate, so that the heat dissipation power of the corresponding power element can be flexibly adjusted according to the running state of the power element, the use is more convenient and flexible, and higher flexibility and efficiency of heat dissipation can be provided in a limited volume.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of converter heat dissipation, and in particular to a converter heat dissipation device and a control method thereof. BACKGROUND

[0002] A converter is an electrical device that changes the voltage, frequency, phase number and other electrical quantities or characteristics of a power supply system. The most heat-generating component in the converter is usually a power semiconductor device, such as an IGBT (Insulated Gate Bipolar Transistor) or a MOSFET (Metal Oxide Semiconductor Field Effect Transistor). These devices are often used as electronic switches in converters to control the flow and direction of electrical energy. Since the power semiconductor devices need to withstand high voltage and high current during the conversion of electrical energy, they generate a large amount of heat. In order to prevent overheating damage, it is necessary to install a heat sink or other heat dissipation device in the converter to ensure that the power semiconductor devices operate within a safe temperature range.

[0003] The patent with the application number CN201610945486.5 discloses a converter heat dissipation device, which includes a cabinet through which cooling air flows. The cabinet is provided with a partition plate along the direction of the cooling air flow, which separates the inside of the cabinet into a first chamber for installing an electric reactor and a second chamber for installing a power module. The partition plate is sealingly connected to the power module and is fixedly connected to one end of the cabinet provided with an air inlet. The two ends of the partition plate are sealingly connected to the inner wall of the cabinet perpendicular to the direction of the cooling air flow. The two ends of the first chamber are respectively connected to the air inlet and the air outlet. The partition plate is fixedly provided with a wind duct along the direction of the cooling air flow. The two ends of the wind duct are respectively connected to the air inlet and the air outlet. The partition plate is provided with a ventilation hole connecting the wind duct and the second chamber. The cooling fins of the power module extend into the inside of the wind duct through the ventilation hole.

[0004] However, the structure of the converter heat dissipation device is fixed. The corresponding heat dissipation structure used by each power element is determined when the element is installed. The total heat dissipation power of the corresponding heat dissipation structure is greater than the heat generated by the power element in the highest operating state. However, during the operation of the converter, factors such as the working state and load condition of the power semiconductor devices affect their working time and operating mode. Generally, not all power elements operate at all times, but their operating state is dynamically adjusted according to the load condition, operating mode, etc. However, the current converter heat dissipation equipment cannot allocate the heat dissipation power of the corresponding power element according to the operating state of the power element, resulting in excessive waste of the overall heat dissipation structure and power of the heat dissipation equipment. SUMMARY

[0005] Therefore, the present application aims to provide a converter heat dissipation device and a control method thereof to solve the problem that the current converter heat dissipation device cannot allocate the heat dissipation power of the corresponding power element according to the operating state of the power element, resulting in excessive waste of the structure and power of the overall heat dissipation device.

[0006] To achieve the above-mentioned purpose, the present application provides a converter heat dissipation device, which comprises a plurality of vertically arranged heat dissipation units, and further comprises:

[0007] A plurality of center heat conduction blocks are arranged in the middle of the heat dissipation units along the horizontal direction, a plurality of center heat conduction sleeves are arranged through the middle of the center heat conduction blocks horizontally, a U-shaped heat pipe is arranged in the center heat conduction block, and a rear end heat dissipation block is connected to the rear end of the U-shaped heat pipe;

[0008] A heat dissipation bottom plate is arranged between adjacent center heat conduction blocks, a plurality of center heat conduction blocks and heat dissipation bottom plates are arranged in the horizontal direction, a power element mounting plate is arranged above the heat dissipation bottom plate, the power element mounting plate is used to load and mount the electrical power element of the converter, a plurality of horizontal heat conduction sleeves are arranged through the middle of the heat dissipation bottom plate, and the horizontal heat conduction sleeves are arranged one by one corresponding to the center heat conduction sleeves;

[0009] A horizontal heat pipe is arranged in the center heat conduction sleeve, the left and right ends of the horizontal heat pipe are arranged in the corresponding horizontal heat conduction sleeve, a translation linkage frame is connected to the middle of the horizontal heat pipe, and the translation linkage frame drives all horizontal heat pipes to slide left and right along the center heat conduction sleeve to adjust the length of the horizontal heat pipe in the corresponding horizontal heat conduction sleeve.

[0010] Further, the inside of the rear end heat dissipation block is provided with a water-cooled heat conduction pipe, the rear side of the water-cooled heat conduction pipe is provided with a total heat dissipation fin, the power element mounting plate transmits the heat of the electrical power element to the heat dissipation bottom plate, the heat dissipation bottom plate transmits the heat to the center heat conduction block through the horizontal heat pipe, the center heat conduction block transmits the heat to the rear end heat dissipation block through the U-shaped heat pipe, and the rear end heat dissipation block transmits the heat to the total heat dissipation fin through the water-cooled heat conduction pipe for heat dissipation.

[0011] Further, the middle of the power element mounting plate is provided with a temperature sensor, the bottom of the translation linkage frame is horizontally provided with a translation rack, the lower side of the translation rack is engaged with a translation gear, the shaft end of the translation gear is provided with a translation motor, and the temperature sensor and the translation motor are electrically connected to each other.

[0012] Further, the middle of the heat dissipation base plate is uniformly arranged with a plurality of fin embedding grooves, the bottom surface of the power element mounting plate is uniformly arranged with a plurality of heat conduction fins, the heat conduction fins are arranged corresponding to the fin embedding grooves, and the power element mounting plate is connected with the heat dissipation base plate through the heat conduction fins and the fin embedding grooves arranged in the middle of the heat dissipation base plate.

[0013] Further, the left and right ends of the heat dissipation base plate are symmetrically arranged with vertical suspension frames, the top end and the bottom end of the vertical suspension frame are provided with guide rollers, the inside of the heat dissipation base plate is horizontally arranged with a heat conduction embedding groove, the inside of the heat conduction embedding groove is embedded and slidably arranged with a suspension traction wire, the outside of the power element mounting plate is provided with a lifting mounting frame, the power element mounting plate is slidably and detachably connected with the lifting mounting frame, the left and right ends of the suspension traction wire pass through the guide rollers on both sides and are connected with the left and right ends of the lifting mounting frame, the suspension traction wire expands and elongates when heated, the power element mounting plate is lowered as a whole, the connection area between the heat conduction fins and the fin embedding grooves increases, the suspension traction wire shrinks and shortens when cooled, the power element mounting plate is raised as a whole, and the connection area between the heat conduction fins and the fin embedding grooves decreases.

[0014] Further, the front side of the heat dissipation base plate is provided with a fan fixing frame, the middle of the fan fixing frame is embedded with a fan mounting frame, a plurality of front end heat dissipation fans are arranged in the middle of the fan mounting frame, the bottom end of the fan mounting frame is provided with a turnover shaft, the fan mounting frame is rotationally connected with the fan fixing frame through the turnover shaft, and the top end of the fan mounting frame and the fan fixing frame is provided with a fixed magnet.

[0015] Further, the middle of the heat dissipation base plate is uniformly arranged with a plurality of fin embedding grooves, the bottom surface of the power element mounting plate is uniformly arranged with a plurality of heat conduction fins, the heat conduction fins are arranged corresponding to the fin embedding grooves, and the power element mounting plate is connected with the heat dissipation base plate through the heat conduction fins and the fin embedding grooves arranged in the middle of the heat dissipation base plate.

[0016] Further, the left and right ends of the water-cooled heat-conducting pipe are provided with conveying ports, the front ends of the horizontal conveying pipe and the horizontal return pipe are provided with adjusting ports, the horizontal adjusting pipe is arranged between the conveying ports and the adjusting ports, the front and rear sides of the horizontal adjusting pipe are respectively nested and slidingly connected between the conveying ports and the adjusting ports, the conveying ports and the adjusting ports are in communication with each other through the horizontal adjusting pipe, the outermost side of the adjusting port is provided with an outer sealing ring, the inner side of the outer sealing ring is provided with an inner sealing ring, the front end of the horizontal conveying pipe is provided with a communication opening, the rear end of the horizontal conveying pipe is a closed structure, and a plurality of conveying holes are uniformly arranged on the outer walls of the rear side of the horizontal conveying pipe.

[0017] Further, the middle of the horizontal conveying pipe is provided with an automatic adjusting frame, the automatic adjusting frame drives the left and right horizontal conveying pipes to synchronously slide and adjust, the middle of the automatic adjusting frame is provided with a horizontal push rod, the bottom end of the horizontal push rod is provided with an adjusting piston, the rear side of the rear-end heat-dissipating block is provided with a horizontal adjusting sleeve, the adjusting piston is nested and slidingly arranged in the inner side of the horizontal adjusting sleeve, and the horizontal adjusting sleeve is filled with liquid.

[0018] A control method of a converter heat dissipation device, comprising the following steps:

[0019] The electrical power elements of the converter are mounted on the power element mounting plates, and the electrical power elements not working at the same time are mounted on the power element mounting plates symmetrically arranged on both sides of the center heat-conducting block according to the working frequency requirements of the electrical power elements. The power element mounting plates absorb the heat of the conducting elements to the heat-dissipating bottom plate below the power element mounting plates, and the heat-dissipating bottom plate transmits the heat to the center heat-conducting block through the horizontal heat pipes, and further transmits the heat to the rear-end heat-dissipating block through the U-shaped heat pipes, so as to complete the heat dissipation of the power elements. The horizontal heat pipes are synchronously and left-right slidingly driven by the translation linkage frame to adjust the length of the horizontal heat pipes in the corresponding horizontal heat-conducting sleeves. The power element mounting plates on one side of the left and right sides have higher temperature, the horizontal heat pipes move to the corresponding side, and the heat dissipation power of the corresponding power elements is flexibly adjusted according to the running state of the power elements.

[0020] The application has the beneficial effects that: as can be seen from the above, the converter heat dissipation device provided by the application bears and installs the electrical power element of the converter through the power element mounting plate, absorbs the heat of the conduction element to the heat dissipation bottom plate, and transmits the heat to the center heat conduction block through the horizontal heat pipe, and further transmits the heat to the rear end heat dissipation block through the U-shaped heat pipe to complete the heat dissipation work of the power element, the middle part of the horizontal heat pipe is nested and slidably arranged in the center heat conduction block, and the left and right ends of the horizontal heat pipe are respectively nested and slidably arranged in the heat dissipation bottom plates on the left and right sides of the center heat conduction block, the translation linkage frame can drive all the horizontal heat pipes to slide left and right synchronously to adjust the length of the horizontal heat pipe in the corresponding horizontal heat conduction sleeve, and further adjust the heat dissipation effect and power of the corresponding heat dissipation bottom plate and power element mounting plate, so that the heat dissipation power of the corresponding power element can be flexibly adjusted according to the running state of the power element, and the use is more convenient and flexible, so as to provide higher flexibility and efficiency of heat dissipation in a limited volume. BRIEF DESCRIPTION OF DRAWINGS

[0021] In order to more clearly illustrate the technical solutions in the application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or the prior art description. Obviously, the drawings in the following description only illustrate the application, and other drawings can be obtained by those skilled in the art without any creative effort.

[0022] Figure 1 It is a partial structure schematic diagram of the heat dissipation unit of the embodiment of the application.

[0023] Figure 2 It is a front structure schematic diagram of the embodiment of the application.

[0024] Figure 3 It is a rear structure schematic diagram of the vertical arrangement of the heat dissipation unit of the embodiment of the application.

[0025] Figure 4 It is a front structure schematic diagram of the vertical arrangement of the heat dissipation unit of the embodiment of the application.

[0026] Figure 5 It is a structure schematic diagram of the horizontal arrangement of the heat dissipation unit of the embodiment of the application.

[0027] Figure 6 It is a front structure schematic diagram of the heat dissipation unit of the embodiment of the application.

[0028] Figure 7 It is a bottom structure schematic diagram of the heat dissipation unit of the embodiment of the application.

[0029] Figure 8 It is a structure schematic diagram of the heat dissipation bottom plate of the embodiment of the application.

[0030] Figure 9 Fig. 1 is a structural schematic diagram of the power element mounting plate in the dismounting state of an embodiment of the present application;

[0031] Figure 10 Fig. 2 is a structural schematic diagram of the center heat conducting block of an embodiment of the present application;

[0032] Figure 11 Fig. 3 is a structural schematic diagram of the rear end heat dissipating block of an embodiment of the present application;

[0033] Figure 12 Fig. 4 is a structural schematic diagram of the horizontal adjusting pipe of an embodiment of the present application.

[0034] In the figure, the following are marked:

[0035] 1, heat dissipating unit; 101, center heat conducting block; 102, center heat conducting sleeve; 103, U-shaped heat pipe; 2, heat dissipating bottom plate; 201, fin fitting groove; 202, horizontal heat conducting sleeve; 203, heat conducting fitting groove; 204, vertical hanging frame; 205, guide roller; 206, hanging traction wire; 3, power element mounting plate; 301, heat conducting fin; 302, temperature sensor; 303, lifting mounting frame; 4, horizontal heat pipe; 401, translation linkage frame; 402, translation rack; 403, translation gear; 404, translation motor; 5, fan fixing frame; 501, fan mounting frame; 502, front end heat dissipating fan; 503, overturning shaft; 504, fixed magnet; 6, rear end heat dissipating block; 601, water-cooled heat conducting pipe; 602, conveying port; 603, horizontal adjusting sleeve; 604, adjusting sealed bin; 7, horizontal conveying pipe; 701, horizontal return pipe; 702, adjusting port; 703, outer sealing ring; 704, inner sealing ring; 8, horizontal adjusting pipe; 802, conveying opening; 803, automatic adjusting frame; 804, horizontal push rod; 805, adjusting piston; 9, vertical conveying pipe; 901, vertical return pipe; 902, total heat dissipating fin; 903, rear end heat dissipating fan; 904, conveying main pipe; 905, return main pipe; 906, circulating water pump. DETAILED DESCRIPTION

[0036] In order to make the purpose, technical scheme and advantages of the present application more clear, the present application is further described in detail below in combination with specific embodiments.

[0037] It should be noted that the technical terms or scientific terms used in the present application should be the general meanings understood by those skilled in the art unless otherwise defined. The "first", "second" and similar words used in the present application do not represent any order, number or importance, but are only used to distinguish different components. "Include" or "contain" and similar words mean that the elements or objects before the word cover the elements or objects listed after the word and their equivalents, without excluding other elements or objects. "Connected" or "connected" and similar words are not limited to physical or mechanical connection, but can include electrical connection, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to represent relative positional relationship, which may change accordingly when the absolute position of the described object changes.

[0038] As shown in Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 , Figure 9 and Figure 10 A heat dissipation device of a converter includes a plurality of vertically arranged heat dissipation units 1, and further includes:

[0039] A plurality of central heat conduction blocks 101 are arranged in the middle of the heat dissipation unit 1 along the horizontal direction, a plurality of central heat conduction sleeves 102 are arranged in the middle of the central heat conduction block 101, a U-shaped heat pipe 103 is arranged in the central heat conduction block 101, and a rear end of the U-shaped heat pipe 103 is connected to a rear end heat dissipation block 6;

[0040] A plurality of central heat conduction blocks 101 are arranged in the middle of the heat dissipation unit 1 along the horizontal direction, a plurality of central heat conduction sleeves 102 are arranged in the middle of the central heat conduction block 101, a U-shaped heat pipe 103 is arranged in the central heat conduction block 101, and a rear end of the U-shaped heat pipe 103 is connected to a rear end heat dissipation block 6;

[0041] A plurality of central heat conduction blocks 101 are arranged in the middle of the heat dissipation unit 1 along the horizontal direction, a plurality of central heat conduction sleeves 102 are arranged in the middle of the central heat conduction block 101, a U-shaped heat pipe 103 is arranged in the central heat conduction block 101, and a rear end of the U-shaped heat pipe 103 is connected to a rear end heat dissipation block 6;

[0042] In this embodiment, the device carries the electrical power elements of the converter through the power element mounting plate 3. When the electrical power elements are installed, they need to be installed on the power element mounting plate 3 symmetrically arranged on both sides of the center heat conducting block 101 according to the working frequency requirements of the electrical power elements, which are not working at the same time. The power element mounting plate 3 can absorb the heat of the conducting elements to the heat dissipation bottom plate 2 below the power element mounting plate 3, and the heat dissipation bottom plate 2 transmits heat to the center heat conducting block 101 through the horizontal heat pipe 4, and further transmits heat to the rear end heat dissipation block 6 through the U-shaped heat pipe 103, to complete the heat dissipation work of the power elements. The middle part of the horizontal heat pipe 4 is nested and slidingly arranged in the center heat conducting block 101, and the left and right ends of the horizontal heat pipe 4 are respectively nested and slidingly arranged in the heat dissipation bottom plate 2 on both sides of the center heat conducting block 101. The translation linkage frame 401 can drive all horizontal heat pipes 4 to slide left and right synchronously to adjust the length of the horizontal heat pipe 4 located inside the corresponding horizontal heat conducting sleeve 202, thereby adjusting the heat dissipation effect and power of the corresponding heat dissipation bottom plate 2 and power element mounting plate 3. Therefore, the heat dissipation power of the corresponding power elements can be flexibly adjusted according to the running state of the power elements, which is more convenient and flexible to use, so as to provide higher flexibility and efficiency of heat dissipation in a limited volume.

[0043] As shown in Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 and Figure 7 , preferably, the device absorbs the heat of the conducting elements to the heat dissipation bottom plate 2 below the power element mounting plate 3 through the power element mounting plate 3, and the heat dissipation bottom plate 2 transmits heat to the center heat conducting block 101 through the horizontal heat pipe 4, and further transmits heat to the rear end heat dissipation block 6 through the U-shaped heat pipe 103. The inside of the rear end heat dissipation block 6 is provided with a water-cooled heat pipe 601, and the rear side of the water-cooled heat pipe 601 is provided with a total heat dissipation fin 902. The power element mounting plate 3 transmits the heat of the electrical power elements to the heat dissipation bottom plate 2, the heat dissipation bottom plate 2 transmits the heat to the center heat conducting block 101 through the horizontal heat pipe 4, the center heat conducting block 101 transmits the heat to the rear end heat dissipation block 6 through the U-shaped heat pipe 103, and the rear end heat dissipation block 6 transmits the heat of the water-cooled heat pipe 601 to the total heat dissipation fin 902 for heat dissipation, to complete the heat dissipation work of the power elements.

[0044] As shown in Figure 1 , Figure 5 , Figure 6 , Figure 7 , Figure 8 , Figure 9 and Figure 10As shown, preferably, the device drives all horizontal heat pipes 4 to slide synchronously left and right through the translation linkage frame 401 to adjust the length of the horizontal heat pipes 4 inside the corresponding horizontal heat conduction sleeve 202, and then to adjust the contact area between the horizontal heat pipes 4 and the horizontal heat conduction sleeve 202, so as to adjust the heat conduction efficiency between the corresponding heat dissipation base plate 2 and the horizontal heat pipes 4, and then to adjust the heat dissipation effect and power of the corresponding heat dissipation base plate 2 and the power element mounting plate 3. The middle of the power element mounting plate 3 is provided with a temperature sensor 302, the bottom of the translation linkage frame 401 is horizontally provided with a translation rack 402, the lower part of the translation rack 402 is provided with a translation gear 403, the shaft end of the translation gear 403 is provided with a translation motor 404, and the temperature sensor 302 and the translation motor 404 are electrically connected with each other. Therefore, the temperature of the corresponding power element mounting plate 3 can be detected through the temperature sensor 302, and according to the real-time temperature, the translation motor 404 drives the translation linkage frame 401 to move through the translation gear 403 and the translation rack 402, so as to control the use to be more flexible and convenient.

[0045] As shown in Figure 1 , Figure 5 , Figure 6 , Figure 7 , Figure 8 , Figure 9 and Figure 10 , preferably, the device carries and installs the electrical power elements of the current transformer through the power element mounting plate 3 and absorbs and conducts the heat thereof to the heat dissipation base plate 2. The middle of the heat dissipation base plate 2 is uniformly arranged with a plurality of fin fitting grooves 201, and the bottom surface of the power element mounting plate 3 is uniformly arranged with a plurality of heat conduction fins 301. The heat conduction fins 301 are arranged corresponding to the fin fitting grooves 201. The power element mounting plate 3 is connected with the heat dissipation base plate 2 through the heat conduction fins 301 and the fin fitting grooves 201 arranged in the middle of the heat dissipation base plate 2, so that the power element mounting plate 3 is connected with the heat dissipation base plate 2 through the heat conduction fins 301 and the fin fitting grooves 201 to conduct heat. Therefore, the power element mounting plate 3 can adjust the length of the heat conduction fins 301 embedded in the fin fitting grooves 201 by moving up and down, and then adjust the contact area between the power element mounting plate 3 and the heat dissipation base plate 2, so as to adjust the heat conduction efficiency between the corresponding heat dissipation base plate 2 and the power element mounting plate 3, and then to adjust the heat dissipation effect and power of the corresponding heat dissipation base plate 2 and the power element mounting plate 3. The use is more flexible and convenient.

[0046] As shown in Figure 1 , Figure 5 , Figure 6 , Figure 7 , Figure 8 , Figure 9 and Figure 10As shown, preferably, the device adjusts the heat conduction efficiency between the heat dissipation base plate 2 and the power element mounting plate 3 by moving the power element mounting plate 3 up and down, and the left and right ends of the heat dissipation base plate 2 are symmetrically provided with vertical hanging racks 204, the top end and the bottom end of the vertical hanging rack 204 are provided with guide rollers 205, the inside of the heat dissipation base plate 2 is horizontally provided with a heat conduction embedded groove 203, the inside of the heat conduction embedded groove 203 is slidably embedded with a hanging traction wire 206, the outside of the power element mounting plate 3 is provided with a lifting mounting rack 303, the power element mounting plate 3 is slidably detachably connected with the lifting mounting rack 303, the left and right ends of the hanging traction wire 206 are respectively connected with the left and right ends of the lifting mounting rack 303 by passing through the guide rollers 205 on the two sides, the hanging traction wire 206 expands and elongates when heated, the power element mounting plate 3 is integrally pulled to lower the height, the connection area between the heat conduction fins 301 and the fin embedded groove 201 increases, the hanging traction wire 206 shrinks and shortens when cooled, the power element mounting plate 3 is integrally pulled to raise the height, the connection area between the heat conduction fins 301 and the fin embedded groove 201 decreases, so that the heat conduction efficiency between the heat dissipation base plate 2 and the power element mounting plate 3 can be automatically controlled according to the temperature through the hanging traction wire 206, and the heat dissipation effect and the power of the corresponding heat dissipation base plate 2 and the power element mounting plate 3 are automatically adjusted, which is more flexible and convenient to use, and the hanging traction wire 206 also constitutes a suspension structure, which can reduce the vibration of the power element mounting plate 3 and the electrical components mounted thereon, and has higher safety and shock resistance, and since the power element mounting plate 3 is slidably detachably connected with the lifting mounting rack 303, the power element mounting plate 3 can be slid to be mounted or dismounted from the lifting mounting rack 303, so as to facilitate the mounting of electrical power elements on the power element mounting plate 3, and the front side of the heat dissipation base plate 2 is provided with a fan fixing frame 5, the middle of the fan fixing frame 5 is embedded with a fan mounting rack 501, a plurality of front end heat dissipation fans 502 are arranged in the middle of the fan mounting rack 501, the bottom end of the fan mounting rack 501 is provided with a turnover shaft 503, the fan mounting rack 501 is rotationally connected with the fan fixing frame 5 through the turnover shaft 503, the top end of the fan mounting rack 501 and the fan fixing frame 5 are provided with fixed magnets 504, the airflow can pass through the heat conduction fins 301 to carry away a certain amount of heat through the front end heat dissipation fans 502, and the fan mounting rack 501 can be flipped outward through the turnover shaft 503 to open the fan fixing frame 5, so as to facilitate the sliding mounting and dismounting of the power element mounting plate 3, and the fan mounting rack 501 is rotationally embedded in the fan fixing frame 5 and is adsorbed and fixed by the fixed magnets 504, which is more convenient and fast to use.

[0047] As Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 10 , Figure 11and Figure 12 As shown, preferably, the device absorbs the heat of the conducting elements to the heat dissipation base plate 2 below the power element mounting plate 3 through the power element mounting plate 3, and the heat dissipation base plate 2 then transmits the heat to the center heat conduction block 101 through the horizontal heat pipe 4, and further transmits the heat to the rear end heat dissipation block 6 through the U-shaped heat pipe 103, the middle of the rear end heat dissipation block 6 is horizontally provided with a water-cooled heat conduction pipe 601, the left and right ends of the water-cooled heat conduction pipe 601 are respectively connected with a horizontal conveying pipe 7 and a horizontal return pipe 701, the rear ends of the horizontal conveying pipe 7 and the horizontal return pipe 701 are respectively connected with a vertical conveying pipe 9 and a vertical return pipe 901, the outer sides of the vertical conveying pipe 9 and the vertical return pipe 901 are arranged with total heat dissipation fins 902, the rear side of the total heat dissipation fins 902 is provided with a rear end heat dissipation fan 903, the top end of the vertical conveying pipe 9 is connected with a conveying main pipe 904, the bottom end of the vertical return pipe 901 is connected with a return main pipe 905, the top end of the vertical conveying pipe 9 is connected with the top end of the vertical return pipe 901 through the conveying main pipe 904, the bottom end of the vertical conveying pipe 9 is connected with the bottom end of the vertical return pipe 901 through the return main pipe 905, the middle of the conveying main pipe 904 is provided with a circulating water pump 906, the circulating water pump 906 can pump the coolant to pass through the conveying main pipe 904, the vertical conveying pipe 9, the water-cooled heat conduction pipe 601, the return main pipe 905 and the vertical return pipe 901 in sequence to form a water circulation heat dissipation structure to provide heat dissipation for the rear end heat dissipation block 6, so that most of the heat of the power elements in the converter is finally dissipated by the water circulation heat dissipation structure.

[0048] As Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 10 , Figure 11 and Figure 12As shown, preferably, the device provides heat dissipation for the rear-end heat dissipation block 6 through the water circulation heat dissipation structure. The left and right ends of the water-cooled heat conduction pipe 601 are provided with conveying ports 602. The front ends of the horizontal conveying pipe 7 and the horizontal return pipe 701 are provided with adjusting ports 702. The horizontal adjusting pipe 8 is arranged between the conveying ports 602 and the adjusting ports 702. The left and right sides of the horizontal adjusting pipe 8 are respectively slidably connected with the conveying ports 602 and the adjusting ports 702. The conveying ports 602 and the adjusting ports 702 are connected with each other through the horizontal adjusting pipe 8. Therefore, the horizontal conveying pipe 7, the horizontal return pipe 701 and the water-cooled heat conduction pipe 601 are connected with each other through the horizontal adjusting pipe 8 to convey the cooling liquid. The outermost side of the adjusting port 702 is provided with an outer sealing ring 703. The inner side of the outer sealing ring 703 is provided with an inner sealing ring 704. The front end of the horizontal conveying pipe 7 is provided with a communication opening. The rear end of the horizontal conveying pipe 7 is a closed structure. A plurality of conveying holes 802 are uniformly arranged on the rear side outer wall of the horizontal conveying pipe 7. The rear side of the horizontal conveying pipe 7 is slidably arranged on the inner side of the outer sealing ring 703 and the inner sealing ring 704. Therefore, when the horizontal conveying pipe 7 slides to the inner side of the adjusting port 702, the number of the conveying holes 802 moving to the inner side of the inner sealing ring 704 increases, so that the conduction capacity of the horizontal conveying pipe 7 increases, and the cooling liquid passing through the water-cooled heat conduction pipe 601 per unit time increases, which can improve the heat dissipation efficiency of the rear-end heat dissipation block 6, and further improve the heat dissipation efficiency of the corresponding center heat conduction block 101 and the power element mounting plate 3 connected thereto. When the horizontal conveying pipe 7 slides to the conveying port 602, the number of the conveying holes 802 moving to the inner side of the inner sealing ring 704 decreases, so that the conduction capacity of the horizontal conveying pipe 7 decreases, and the cooling liquid passing through the water-cooled heat conduction pipe 601 per unit time decreases, which reduces the heat dissipation efficiency of the rear-end heat dissipation block 6, and reduces the heat dissipation efficiency of the corresponding center heat conduction block 101 and the power element mounting plate 3 connected thereto. Therefore, the actual working state of the electrical components can be adjusted, which is more flexible and convenient to use. The middle of the horizontal conveying pipe 7 is provided with an automatic adjusting frame 803. The automatic adjusting frame 803 drives the left and right horizontal conveying pipes 7 to slide and adjust synchronously. The middle of the automatic adjusting frame 803 is provided with a horizontal push rod 804. The bottom end of the horizontal push rod 804 is provided with an adjusting piston 805. The rear side of the rear-end heat dissipation block 6 is horizontally connected with a horizontal adjusting sleeve 603. The adjusting piston 805 is slidably arranged in the inner side of the horizontal adjusting sleeve 603. The inside of the horizontal adjusting sleeve 603 is filled with liquid. Therefore, when the temperature of the rear-end heat dissipation block 6 rises, the liquid in the inside of the horizontal adjusting sleeve 603 expands to push the adjusting piston 805, and then the adjusting piston 805 pushes the automatic adjusting frame 803 to move to one side of the adjusting port 702 through the horizontal push rod 804. The automatic adjusting frame 803 drives the horizontal conveying pipe 7 to slide and adjust synchronously, so as to improve the heat dissipation efficiency of the rear-end heat dissipation block 6. When the temperature of the rear-end heat dissipation block 6 decreases,The liquid filled in the interior of the horizontal adjusting sleeve 603 will shrink to drive the adjusting piston 805, and then the adjusting piston 805 drives the automatic adjusting frame 803 to move to the side of the delivery port 602 through the horizontal push rod 804, so as to reduce the heat dissipation efficiency of the rear end heat dissipation block 6, thereby forming an automatic adjusting mechanism, which is convenient for automatic adjustment according to actual heat dissipation demand, and is more flexible and convenient to use.

[0049] In use, first install the electrical components of the converter to the power element mounting plate 3, and install the electrical power elements that do not work at the same time to the power element mounting plate 3 on both sides of the center heat conduction block 101 according to the working frequency requirements of the electrical power elements. When dissipating heat, the heat conduction elements absorb heat to the heat dissipation bottom plate 2 below the power element mounting plate 3 through the power element mounting plate 3, and the heat dissipation bottom plate 2 then transmits heat to the center heat conduction block 101 through the horizontal heat pipe 4, and further transmits heat to the rear end heat dissipation block 6 through the U-shaped heat pipe 103. The circulating water pump 906 pumps the cooling liquid through the delivery main pipe 904, the vertical delivery pipe 9, the water-cooled heat conduction pipe 601, the vertical return pipe 901, and the return main pipe 905 in turn, transmits heat to the total heat dissipation fin 902, and through the rear end heat dissipation fan 903, the air total heat dissipation fin 902 carries away heat, completing the heat dissipation work. At the same time, according to the temperature detected by the temperature sensor 302 corresponding to the power element mounting plate 3, the translation motor 404, the translation gear 403, and the translation rack 402 drive the translation linkage frame 401 to move, driving all horizontal heat pipes 4 to slide synchronously left and right, to adjust the length of the horizontal heat pipe 4 inside the corresponding horizontal heat conduction sleeve 202, and further adjust the contact area of the horizontal heat pipe 4 and the horizontal heat conduction sleeve 202, so as to adjust the heat conduction efficiency between the corresponding heat dissipation bottom plate 2 and the horizontal heat pipe 4, and adjust the heat dissipation effect and power of the corresponding heat dissipation bottom plate 2 and the power element mounting plate 3, providing more heat dissipation power for power elements with higher temperature and greater heat generation. At the same time, when the suspension traction wire 206 is heated, it expands and elongates in volume, the overall power element mounting plate 3 is lowered in height by traction, the connection area between the heat conduction fin 301 and the fin embedding groove 201 increases, when the suspension traction wire 206 cools down, it shrinks in volume and shortens, the overall power element mounting plate 3 is raised in height by traction, the connection area between the heat conduction fin 301 and the fin embedding groove 201 decreases, the heat conduction efficiency between the heat dissipation bottom plate 2 and the power element mounting plate 3 is automatically controlled according to the temperature, and the heat dissipation effect and power of the corresponding heat dissipation bottom plate 2 and the power element mounting plate 3 are automatically adjusted. When the temperature of the rear end heat dissipation block 6 rises, the liquid filled in the horizontal adjustment sleeve 603 expands to push the adjustment piston 805, and the adjustment piston 805 then pushes the automatic adjustment frame 803 to move to one side of the adjustment port 702 through the horizontal push rod 804, and the automatic adjustment frame 803 drives the horizontal delivery pipe 7 to slide synchronously to adjust, so as to improve the heat dissipation efficiency of the rear end heat dissipation block 6. When the temperature of the rear end heat dissipation block 6 decreases, the liquid filled in the horizontal adjustment sleeve 603 contracts to drive the adjustment piston 805, and the adjustment piston 805 then drives the automatic adjustment frame 803 to move to one side of the delivery port 602 through the horizontal push rod 804, so as to reduce the heat dissipation efficiency of the rear end heat dissipation block 6. According to the actual heat dissipation requirements, automatic adjustment is performed, and each heat dissipation unit 1 and the center heat conduction block 101 in each heat dissipation unit 1 are provided with independent adjustment structures.Real-time control of the distribution of heat dissipation power according to the heat generation of the power element is realized.

[0050] A control method of a converter heat dissipation device, comprising the following steps:

[0051] The electrical power elements of the converter are mounted on the power element mounting plate 3, and during the mounting, the electrical power elements not working at the same time are respectively mounted on the power element mounting plate 3 symmetrically arranged on both sides of the center heat conduction block 101 according to the working frequency requirement of the electrical power elements, the power element mounting plate 3 absorbs the heat of the conduction element to the heat dissipation bottom plate 2 below the power element mounting plate 3, and the heat dissipation bottom plate 2 transmits the heat to the center heat conduction block 101 through the horizontal heat pipe 4, and further transmits the heat to the rear end heat dissipation block 6 through the U-shaped heat pipe 103, so as to complete the heat dissipation work of the power element, and the horizontal heat pipe 4 is driven to synchronously slide left and right by the translation linkage frame 401 to adjust the length of the horizontal heat pipe 4 located in the corresponding horizontal heat conduction sleeve 202, and the power element mounting plate 3 on one side of the left and right sides has higher temperature, the horizontal heat pipe 4 moves to the corresponding side, and the heat dissipation power of the corresponding power element is flexibly adjusted according to the running state of the power element.

[0052] The converter heat dissipation device provided by the application, the electrical power elements of the converter are mounted on the power element mounting plate 3, and the heat of the conduction element is absorbed to the heat dissipation bottom plate 2, and the heat dissipation bottom plate 2 transmits the heat to the center heat conduction block 101 through the horizontal heat pipe 4, and further transmits the heat to the rear end heat dissipation block 6 through the U-shaped heat pipe 103, so as to complete the heat dissipation work of the power element, the middle part of the horizontal heat pipe 4 is nested and slidably arranged in the center heat conduction block 101, and the left and right ends of the horizontal heat pipe 4 are respectively nested and slidably arranged in the heat dissipation bottom plate 2 on both sides of the center heat conduction block 101, the translation linkage frame 401 can drive all the horizontal heat pipes 4 to synchronously slide left and right to adjust the length of the horizontal heat pipe 4 located in the corresponding horizontal heat conduction sleeve 202, and further adjust the heat dissipation effect and power of the corresponding heat dissipation bottom plate 2 and power element mounting plate 3, so that the heat dissipation power of the corresponding power element can be flexibly adjusted according to the running state of the power element, and the use is more convenient and flexible, so that higher flexibility and efficiency of heat dissipation can be provided in a limited volume.

[0053] It should be understood by those of ordinary skill in the art that the above discussion of any of the embodiments is merely exemplary and is not intended to suggest the scope of the application (including claims) is limited to these examples; under the concept of the application, the above embodiments or technical features among different embodiments can also be combined, the steps can be implemented in any order, and there are many other changes of different aspects of the application as described above, which are not provided in details for the sake of brevity.

[0054] The present application is intended to cover all such alternatives, modifications, and variations as fall within the broad scope of the appended claims. Accordingly, any and all such alternatives, modifications, equivalents, improvements and the like are intended to be encompassed by the present application.

Claims

1. A heat dissipating device for a power converter, comprising a plurality of vertically arranged heat dissipating units (1), characterized in that, Also include: Center heat conduction block (101), a plurality of center heat conduction block (101) is arranged in the middle of the heat dissipation unit (1) in horizontal direction, the middle of the center heat conduction block (101) is provided with a plurality of center heat conduction sleeve (102), the inside of the center heat conduction block (101) is provided with U type heat pipe (103), the rear end of the U type heat pipe (103) is connected and provided with rear end heat dissipation block (6); Heat dissipation bottom plate (2) is arranged between adjacent center heat conduction block (101), a plurality of center heat conduction block (101) and heat dissipation bottom plate (2) are arranged in horizontal direction interval, the upper side of the heat dissipation bottom plate (2) is provided with power element mounting plate (3), the power element mounting plate (3) is used to bear the electrical power element of converter, the middle of the heat dissipation bottom plate (2) is provided with a plurality of horizontal heat conduction sleeve (202), the horizontal heat conduction sleeve (202) is arranged in one-to-one correspondence with the center heat conduction sleeve (102); Horizontal heat pipe (4) is nested and slidably arranged in the inside of the center heat conduction sleeve (102), the left and right ends of the horizontal heat pipe (4) are respectively nested and slidably arranged in the corresponding horizontal heat conduction sleeve (202), the middle of the horizontal heat pipe (4) is connected and provided with translation linkage frame (401), the translation linkage frame (401) drives the horizontal heat pipe (4) to slide left and right synchronously along the center heat conduction sleeve (102) to adjust the length of the horizontal heat pipe (4) in the inside of the corresponding horizontal heat conduction sleeve (202).

2. The inverter heat sink apparatus of claim 1, wherein, The inside of the rear end heat dissipation block (6) is provided with water cooling heat pipe (601), the rear side of the water cooling heat pipe (601) is provided with total heat dissipation fin (902), the power element mounting plate (3) transmits the heat of electrical power element to the heat dissipation bottom plate (2), the heat dissipation bottom plate (2) transmits heat to the center heat conduction block (101) through the horizontal heat pipe (4), the center heat conduction block (101) transmits heat to the rear end heat dissipation block (6) through the U type heat pipe (103), the rear end heat dissipation block (6) transmits heat to the total heat dissipation fin (902) through the water cooling heat pipe (601) to dissipate heat.

3. The power converter heat sink apparatus of claim 1, wherein, The middle of the power element mounting plate (3) is provided with temperature sensor (302), the bottom of the translation linkage frame (401) is horizontally provided with translation rack (402), the lower side of the translation rack (402) is engaged and provided with translation gear (403), the shaft end of the translation gear (403) is provided with translation motor (404), the temperature sensor (302) and the translation motor (404) are electrically connected.

4. The power converter heat sink apparatus of claim 1, wherein, The middle of the heat dissipation bottom plate (2) is uniformly arranged with a plurality of fin embedding grooves (201), the bottom surface of the power element mounting plate (3) is uniformly arranged with a plurality of heat dissipation fins (301), the heat dissipation fins (301) and the fin embedding grooves (201) are arranged in correspondence with each other, the power element mounting plate (3) is slidably connected with the fin embedding grooves (201) arranged in the middle of the heat dissipation bottom plate (2) through the heat dissipation fins (301).

5. The power converter heat sink apparatus of claim 1, wherein, The front side of the heat dissipation bottom plate (2) is provided with a fan fixing frame (5), the middle of the fan fixing frame (5) is embedded with a fan mounting rack (501), a plurality of front end heat dissipation fans (502) are arranged in the middle of the fan mounting rack (501), the bottom end of the fan mounting rack (501) is provided with a turnover shaft (503), the fan mounting rack (501) is rotationally connected with the fan fixing frame (5) through the turnover shaft (503), and the top end of the fan mounting rack (501) and the fan fixing frame (5) is provided with a fixed magnet (504).

6. The power converter heat sink apparatus of claim 1, wherein, The middle of the rear end heat dissipation block (6) is horizontally provided with a water-cooled heat conduction pipe (601), the left and right ends of the water-cooled heat conduction pipe (601) are respectively connected with a horizontal conveying pipe (7) and a horizontal return pipe (701), the rear ends of the horizontal conveying pipe (7) and the horizontal return pipe (701) are respectively connected with a vertical conveying pipe (9) and a vertical return pipe (901), the outer sides of the vertical conveying pipe (9) and the vertical return pipe (901) are arranged with total heat dissipation fins (902), the rear side of the total heat dissipation fin (902) is provided with a rear end heat dissipation fan (903), the top end of the vertical conveying pipe (9) is connected with a conveying main pipe (904), the bottom end of the vertical return pipe (901) is connected with a return main pipe (905), the top end of the vertical conveying pipe (9) is connected with the top end of the vertical return pipe (901) through the conveying main pipe (904), the bottom end of the vertical conveying pipe (9) is connected with the bottom end of the vertical return pipe (901) through the return main pipe (905), and the middle of the conveying main pipe (904) is provided with a circulating water pump (906).

7. The inverter heat sink of claim 6, wherein, The left and right ends of the water-cooled heat conduction pipe (601) are provided with conveying ports (602), the front ends of the horizontal conveying pipe (7) and the horizontal return pipe (701) are provided with adjusting ports (702), the conveying ports (602) and the adjusting ports (702) are provided with a horizontal adjusting pipe (8), the front and rear sides of the horizontal adjusting pipe (8) are respectively nested and slidingly connected between the conveying ports (602) and the adjusting ports (702), the conveying ports (602) and the adjusting ports (702) are communicated with each other through the horizontal adjusting pipe (8), the outermost side of the adjusting port (702) is provided with an outer sealing ring (703), the inner side of the outer sealing ring (703) is provided with an inner sealing ring (704), the front end of the horizontal conveying pipe (7) is provided with a communication opening, the rear end of the horizontal conveying pipe (7) is of a closed structure, a plurality of conveying openings (802) are uniformly arranged on the rear side outer wall of the horizontal conveying pipe (7), and the rear side of the horizontal conveying pipe (7) is nested and slidingly arranged on the inner side of the outer sealing ring (703) and the inner sealing ring (704).

8. The inverter heat sink apparatus of claim 7, wherein, The middle of the horizontal conveying pipe (7) is provided with an automatic adjusting frame (803), which drives the left and right horizontal conveying pipes (7) to slide and adjust synchronously. The middle of the automatic adjusting frame (803) is provided with a horizontal push rod (804), and the bottom end of the horizontal push rod (804) is provided with an adjusting piston (805). The rear end of the heat dissipation block (6) is provided with a horizontal adjusting sleeve (603) on the middle rear side. The adjusting piston (805) is nested and slidably arranged on the inside of the horizontal adjusting sleeve (603), and the inside of the horizontal adjusting sleeve (603) is filled with liquid.

9. The control method of the converter heat sink apparatus according to any one of claims 1 to 8, characterized by, Comprising the following steps: The electrical power elements of the converter are mounted on the power element mounting plate (3). During installation, according to the working frequency requirements of the electrical power elements, the electrical power elements that do not work at the same time are respectively mounted on the power element mounting plate (3) symmetrically arranged on both sides of the center heat conducting block (101). The power element mounting plate (3) absorbs the heat of the conducting element to the heat dissipation bottom plate (2) below the power element mounting plate (3), and the heat dissipation bottom plate (2) transmits the heat to the center heat conducting block (101) through the horizontal heat pipe (4), and further transmits the heat to the rear end heat dissipation block (6) through the U-shaped heat pipe (103), so as to complete the heat dissipation work of the power element. All horizontal heat pipes (4) are driven by the translation linkage frame (401) to slide left and right synchronously to adjust the length of the horizontal heat pipe (4) inside the corresponding horizontal heat conducting sleeve (202). The temperature on one side of the left and right power element mounting plates (3) is higher, and the horizontal heat pipe (4) moves to the corresponding side. According to the running state of the power element, the heat dissipation power of the corresponding power element is flexibly adjusted.

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