阅读说明：本技术 一种船用变频器的新型冷却装置 (Novel cooling device of marine frequency converter ) 是由 张利刚 于 2019-11-21 设计创作，主要内容包括：本发明公开了一种船用变频器的新型冷却装置,包括船舶本体和变频器本体,所述变频器本体包括导热体、功率模块、动力设备柜和控制箱,所述船舶本体的底部安装有加强结构围井,所述导热体通过密封材料安装在围井的内部,所述导热体贯穿围井,且导热体的散热端浸入在海水中,所述导热体的吸热端通过导热胶与变频器本体的第一功率模块紧密贴合。本发明结构合理,通过将变频器本体拆分为动力设备柜和控制箱两个部分,动力设备柜通过热传导的方式自然冷却,同时控制箱和动力设备柜之间通过光纤进行数据通信,实现对功率模块的精确控制,并且大大抑制了控制单元的弱电信号和功率单元的强电磁之间的干扰,此种方式打破了对现有技术中变频器的形态认知。(The invention discloses a novel cooling device of a marine frequency converter, which comprises a ship body and a frequency converter body, wherein the frequency converter body comprises a heat conductor, a power module, a power equipment cabinet and a control box, the bottom of the ship body is provided with a reinforced structure surrounding well, the heat conductor is arranged inside the surrounding well through a sealing material, the heat conductor penetrates through the surrounding well, the heat dissipation end of the heat conductor is immersed in seawater, and the heat absorption end of the heat conductor is tightly attached to the first power module of the frequency converter body through a heat conducting adhesive. The frequency converter is reasonable in structure, the frequency converter body is divided into the power equipment cabinet and the control box, the power equipment cabinet is naturally cooled in a heat conduction mode, meanwhile, data communication is carried out between the control box and the power equipment cabinet through optical fibers, the power module is accurately controlled, interference between weak current signals of the control unit and strong electromagnetism of the power unit is greatly inhibited, and the mode breaks through form cognition of the frequency converter in the prior art.)

1. The novel cooling device of the marine frequency converter comprises a ship body (1) and a frequency converter body (2), and is characterized in that the frequency converter body (2) comprises a heat conductor (3), a power module, a power equipment cabinet (5) and a control box (6), a reinforced structure surrounding well (7) is fixedly installed at the bottom of the ship body (1), the heat conductor (3) is installed inside the surrounding well (7) through a sealing material, the heat conductor (3) penetrates through the surrounding well (7), a heat dissipation end (301) of the heat conductor (3) is immersed in seawater, the power module comprises a first power module (401) and a second power module (402), a heat absorption end (302) of the heat conductor (3) is tightly attached to the first power module (401) of the frequency converter body (2) through heat conducting glue, and a zinc block is installed at the heat absorption end (302) of the heat conductor (3), the top of the first power module (401) and the top of the second power module (402) are respectively provided with a first driving trigger circuit (801) and a second driving trigger circuit (802), and a control unit and a power supply unit are arranged in the control box (6).

2. The new cooling device of marine frequency converter according to claim 1, characterized in that a plurality of temperature probes (9) are fixedly mounted on the heat conductor (3).

3. The new cooling arrangement of a marine frequency converter according to claim 1, characterized in that the power equipment cabinet (5) and the control box (6) are in data communication via optical fibers (10).

4. The new cooling device of marine frequency converter according to claim 1, characterized in that the heat dissipating end (301) of the heat conductor (3) is a tapered structure with staggered lengths.

5. The new cooling device of a marine frequency converter according to claim 1, characterized in that the heat conductor (3) is made of copper.

6. The new cooling device of marine frequency converter according to claim 1, characterized in that the periphery of the first power module (401) and the second power module (402) are installed with wiring copper bars and wire inlet guards.

7. The novel cooling device of marine frequency converter according to claim 6, characterized in that the heat conductor (3), the first power module (401), the second power module (402), the first driving trigger circuit (801), the second driving trigger circuit (802), the wiring copper bar and the wire inlet protection piece are all installed inside the power equipment cabinet (5).

8. The novel cooling device for marine frequency converter according to claim 1, characterized in that the number of the first power module (401) and the second power module (402) is multiple.

Technical Field

The invention relates to the technical field of marine frequency converters, in particular to a novel cooling device of a marine frequency converter.

Background

In industrial production, a frequency converter is an effective device for driving a motor to work. The frequency converter body mainly comprises modules such as a rectifying circuit, a filter circuit, an inverter, a detection unit and a controller. Along with the development of power electronic technology, a frequency converter is adopted as driving and control equipment in motor application of many industries, and convenient control and accurate operation of the motor are realized. Wherein, many motor devices on the ship are also controlled by using a frequency converter.

On the existing ship, the common cooling mode of the frequency converter is cooled by air, fresh water cooling and direct seawater cooling through a central cooler, but the control unit and the power unit of the frequency converter in the cooling mode are integrated in a control cabinet, the structure of the frequency converter cooling system is complex, and in addition, a large cooling air duct or cooling pipeline and a cooling water pump or cooling fan which are matched on the ship are needed, so that the space is occupied, the energy is wasted, and the cooling efficiency is low; meanwhile, interference is easily caused between a weak current signal of the inverter control unit and a strong electromagnet of the power unit.

Disclosure of Invention

The present invention is directed to a novel cooling device for a marine inverter, which solves the above problems of the prior art.

In order to achieve the purpose, the invention adopts the following technical scheme:

a novel cooling device of a marine frequency converter comprises a ship body and a frequency converter body, wherein the frequency converter body comprises a heat conductor, a power module, a power equipment cabinet and a control box, the bottom of the ship body is fixedly provided with a reinforced structure enclosing well, the heat conductor is arranged in the enclosing well through a sealing material and penetrates through the enclosing well, and the heat dissipation end of the heat conductor is immersed in seawater, the power module comprises a first power module and a second power module, the heat absorption end of the heat conductor is tightly attached to the first power module of the frequency converter body through heat conducting glue, and the heat absorbing end of the heat conductor is provided with a zinc block, the tops of the first power module and the second power module are respectively provided with a first driving trigger circuit and a second driving trigger circuit, the control box is internally provided with a control unit and a power supply unit, the strength and the safety degree of the ship body are improved through the reinforced structure surrounding well arranged at the bottom of the ship body; the chemical property of zinc is more active than that of copper, so that the anode of the heat conductor can be protected from corrosion by the zinc block arranged at the heat absorption end of the heat conductor; the heat dissipation of the power module of the frequency converter body is to naturally transfer heat from the heat absorption end to the heat dissipation end in a heat conduction mode, so that the heat is directly dissipated into seawater, and therefore, any cooling auxiliary pipeline or air channel is not needed.

Preferably, a plurality of temperature probes are fixedly mounted on the heat conductor, and the temperature of the first power module and the temperature of the second power module can be indirectly measured through the mounted plurality of temperature probes.

Preferably, the power equipment cabinet and the control cabinet are in data communication through optical fibers, and the data communication is performed through the optical fibers, so that the first power module and the second power module are accurately controlled.

Preferably, the heat dissipation end of the heat conductor is a tapered structure with staggered lengths, so that the contact area of the heat conductor and seawater can be increased on one hand, and the heat dissipation effect can be effectively prevented from being influenced by attachment of marine organisms on the surface on the other hand.

Preferably, the heat conductor is made of copper, and the heat conductivity of copper is high, so that heat on the heat conductor can be released into seawater more rapidly.

Preferably, the periphery of each of the first power module and the second power module is provided with a wiring copper bar and a wire inlet protection piece.

Preferably, the heat conductor, the first power module, the second power module, the first driving trigger circuit, the second driving trigger circuit, the wiring copper bar and the inlet wire protection piece are all installed inside the power equipment cabinet.

Preferably, the number of the first power module and the second power module is multiple.

Compared with the prior art, the invention has the beneficial effects that:

1. the frequency converter body is divided into the power equipment cabinet and the control box, and meanwhile data communication is carried out between the control box and the power equipment cabinet through optical fibers, so that the power module is accurately controlled, the interference between weak electric signals of the control unit and strong electromagnetism of the power unit is greatly inhibited, and the mode of the frequency converter in the prior art is recognized.

2. The heat of the heat conductor is directly transmitted to the seawater from the heat dissipation end of the heat conductor, so that the configuration of a frequency converter cooling system is simplified and improved, and meanwhile, the heat dissipation end of the heat conductor is set to be of a tapered structure with staggered lengths, so that marine organisms can be prevented from being attached under the condition of ensuring the heat dissipation area.

3. The energy consumption of a cooling system is saved, and the environment is protected; meanwhile, the supporting equipment required by cooling equipment by the ship is saved, and the precious space and weight of the ship are saved; in addition, the workload is greatly saved for construction and subsequent maintenance.

4. The effect is obviously improved, and the power density of the equipment is improved.

5. The reinforced structure surrounding well installed at the bottom of the ship body further improves the strength and safety of the ship body.

Drawings

Fig. 1 is a schematic structural diagram of a novel cooling device of a marine frequency converter according to the present invention;

fig. 2 is a schematic structural diagram of a frequency converter body of the novel cooling device of the marine frequency converter provided by the invention;

FIG. 3 is a schematic structural diagram of a heat dissipating end of a heat conductor of a novel cooling device of a marine frequency converter according to the present invention;

fig. 4 is a schematic perspective view of a novel cooling device surrounding well of the marine frequency converter according to the present invention.

In the figure: the heat-conducting type ship temperature measuring device comprises a ship body 1, a frequency converter body 2, a heat conductor 3, a heat dissipation end 301, a heat absorption end 302, a first power module 401, a second power module 402, a power equipment cabinet 5, a control box 6, a surrounding well 7, a first driving trigger circuit 801, a second driving trigger circuit 802, a temperature probe 9 and an optical fiber 10.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.

Referring to fig. 1-4, a novel cooling device for a marine frequency converter comprises a ship body 1 and a frequency converter body 2, wherein the frequency converter body 2 comprises a heat conductor 3, a power module, a power equipment cabinet 5 and a control box 6, a reinforced structure surrounding well 7 is fixedly installed at the bottom of the ship body 1, the heat conductor 3 is installed inside the surrounding well 7 through a sealing material, the heat conductor 3 penetrates through the surrounding well 7, a heat dissipation end 301 of the heat conductor 3 is immersed in seawater, the power module comprises a first power module 401 and a second power module 402, a heat absorption end 302 of the heat conductor 3 is tightly attached to the first power module 401 of the frequency converter body 2 through a heat conducting adhesive, a zinc block is installed at the heat absorption end 302 of the heat conductor 3, a first driving trigger circuit 801 and a second driving trigger circuit 802 are respectively installed at the tops of the first power module 401 and the second power module 402, a control unit and a power supply unit are arranged inside the control box 6, the strength and the safety degree of the ship body 1 are improved through the reinforced structure surrounding well 7 arranged at the bottom of the ship body 1; since the chemical properties of zinc are more reactive than those of copper, the anode of the heat conductor 3 can be protected from corrosion by the zinc block mounted at the heat absorbing end 302 of the heat conductor 3; the heat dissipation of the power module of the frequency converter body 2 is to naturally transfer the heat from the heat absorption end 302 to the heat dissipation end 301 in a heat conduction manner, so that the heat is directly dissipated into the seawater, and therefore, no cooling auxiliary pipeline or air duct is required.

Specifically, a plurality of temperature probes 9 are fixedly mounted on the heat conductor 3, and the temperatures of the first power module 401 and the second power module 402 can be indirectly measured through the plurality of mounted temperature probes 9.

Specifically, the power equipment cabinet 5 and the control box 6 perform data communication through the optical fiber 10, and perform data communication through the optical fiber 10, so as to realize accurate control of the first power module 401 and the second power module 402.

Specifically, the heat dissipation end 301 of the heat conductor 3 is a tapered structure with a staggered length, so that the contact area with seawater can be increased on one hand, and the heat dissipation effect can be effectively prevented from being influenced by marine organisms attached to the surface on the other hand.

Specifically, the heat conductor 3 is made of copper, and the heat conductivity of copper is high, so that heat on the heat conductor 3 can be released into seawater more rapidly.

Specifically, the periphery of each of the first power module 401 and the second power module 402 is mounted with a wiring copper bar and a wire inlet guard.

Specifically, the heat conductor 3, the first power module 401, the second power module 402, the first driving trigger circuit 801, the second driving trigger circuit 802, the wiring copper bar and the wire inlet guard are all installed inside the power equipment cabinet 5.

Specifically, the number of the first power module 401 and the second power module 402 is plural.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the equipment or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be considered as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.