阅读说明：本技术 一种变流器 (Current transformer ) 是由 黄华坤 王婷 刘斐 郭世慧 邓明 李嘉 杨卓 李宇 刘雨欣 阳兴 于 2019-08-27 设计创作，主要内容包括：本发明提供一种变流器,包括变流器本体和控制装置,变流器本体、控制装置和压缩机均布置在电机上。其中,变流器本体布置在电机的顶部,控制装置布置在电机的内腔中。本发明提供的变流器,结构紧凑、接线便捷。(The invention provides a converter, which comprises a converter body and a control device, wherein the converter body, the control device and a compressor are all arranged on a motor. The converter body is arranged at the top of the motor, and the control device is arranged in an inner cavity of the motor. The converter provided by the invention has the advantages of compact structure and convenience in wiring.)

1. The converter is characterized by comprising a converter body and a control device, wherein the converter body, the control device and a compressor are all arranged on a motor; wherein the content of the first and second substances,

the converter body is arranged on the top of the motor, and the control device is arranged in an inner cavity of the motor.

2. The converter of claim 1, wherein the converter body bottom is provided with a main loop interface, a control loop interface, a cooling interface, and a drain interface.

3. The converter according to claim 2, wherein the main loop interface and the control loop interface are located on two sides of the bottom of the converter body; the cooling interface and the drain interface are located aft of the primary circuit interface.

4. The converter according to any of claims 1 to 3, wherein the converter body comprises an upper cover and a back cover, both detachably connected with an electric machine.

5. The converter according to any one of claims 1 to 4, wherein the converter body comprises a capacitor assembly, a cooling and dehumidifying assembly, a fan assembly, an electrical board assembly, a terminal block assembly, an overcurrent protection device, a rectification power device, a direct current soft charging device and an inversion power device;

the converter body is of a layered structure;

the capacitor assembly is arranged at the bottommost layer;

the cooling and dehumidifying component is arranged on the second layer;

the fan assembly, the wire holder assembly, the overcurrent protection device, the rectification power device, the direct current soft charging device and the inversion power device are arranged on a third layer;

the electrical board assembly is disposed in a fourth layer.

6. The converter according to claim 5, wherein the capacitor assembly is located close to the inner side of the back of the converter body, the lower end of the capacitor assembly is mounted on the motor, and the upper end of the capacitor assembly is connected to the overcurrent protection device, the rectifying power device, the DC soft charging device and the inverting power device respectively.

7. The converter according to claim 5 or 6, wherein the cooling and dehumidifying assembly comprises a water cooling plate, a radiator arranged on the water cooling plate, a water discharge nozzle and a cooling medium inlet and outlet respectively arranged at the bottom of the water cooling plate;

the water cooling plate is of a second-layer structure of the converter body, and the fan assembly is located right behind the radiator.

8. The converter according to any of claims 5 to 7, wherein the terminal block assemblies are arranged at a determined inclination to the horizontal.

9. The converter according to any of claims 5 to 8, wherein the electrical panel assembly is of unitary construction and comprises at least two layers of moving electrical panels.

10. The converter according to any one of claims 5 to 9, wherein the converter body further comprises two sets of conductive members connected at both ends thereof to the wire holder and the overcurrent protection device, respectively, wherein the two sets of conductive members are arranged in directions perpendicular to each other, and wherein ends of the two sets of conductive members connected to the overcurrent protection device are close to each other.

Technical Field

The invention belongs to the technical field of industrial transmission, and particularly relates to a converter.

Background

Some large units are usually formed by combining a plurality of large parts, and the large units are large in size and require large installation space, so that the wide application of the units is limited. In order to solve the problem of large unit volume, the method in some industries is to dispersedly arrange all parts and then butt-joint the parts through cables and pipelines, the arrangement form is relatively flexible, and the adaptability of the unit to space is enhanced. Furthermore, since the components are separately arranged, centralized management of cable wiring is not facilitated.

Disclosure of Invention

The technical problem to be solved by the invention is to overcome the defects of the prior art and provide a converter which is compact in structure and convenient and fast in wiring.

In order to solve the technical problems, the technical scheme provided by the invention is as follows:

the converter comprises a converter body and a control device, wherein the converter body, the control device and a compressor are all arranged on a motor. The converter body is arranged at the top of the motor, and the control device is arranged in an inner cavity of the motor.

According to the converter, the converter body is directly arranged on the motor, the compressor and the control device are integrated, the converter body adopts a cabinet-free design form, and all the devices are arranged on the top plane of the motor. Compared with the prior art, the centralized arrangement mode has a more compact structure and can reduce the volume of the whole converter as much as possible. The converter, the motor and the control device are arranged in a centralized mode, so that electric wiring is more convenient.

With respect to the above technical solution, further improvements as described below can be made.

In a preferred embodiment of the converter according to the invention, the converter body is provided with a main circuit interface, a control circuit interface, a cooling interface and a drain interface at the bottom.

The main loop interface, the control loop interface, the cooling interface and the discharge interface are arranged at the bottom of the converter body, so that the structure is more compact and attractive.

Further, in a preferred embodiment, the main loop interface and the control loop interface are located on both sides of the bottom of the converter body. The cooling interface and the drain interface are located aft of the main circuit interface.

The main loop interface and the control loop interface are separately arranged, so that the strong current interface and the weak current interface can be separated, and the EMC design can be more reasonable.

Further, in a preferred embodiment, the inverter body comprises an upper cover and a back cover, both of which are detachably connected with the motor.

Through setting up upper portion housing and back housing, can play fine guard action to the converter body to improve the protection level of converter body. In addition, because upper portion housing and back housing are connected for the dismantlement formula with the motor, therefore the inside device of converter body maintains more conveniently to be convenient for converter shell industrial modeling design, improve the product recognition degree.

Specifically, in a preferred embodiment, the converter body comprises a capacitor assembly, a cooling and dehumidifying assembly, a fan assembly, an electric board assembly, a terminal block assembly, an overcurrent protection device, a rectification power device, a direct current soft charging device and an inversion power device. The current transformer body is of a layered structure. The capacitive component is disposed at a lowermost layer. The cooling and dehumidifying component is arranged on the second layer. The fan assembly, the terminal block assembly, the overcurrent protection device, the rectification power device, the direct-current soft charging device and the inversion power device are arranged on the third layer. The electrical board assembly is disposed on the fourth layer.

The inner devices of the converter body are in a layered layout structure form, so that the layers are clear, the structure of the converter can be further compact, and the size of the converter is greatly reduced. The layout structure of the power device enables the current path to be shortest and the length of the conductive piece to be shortest, thereby being beneficial to heat dissipation in the cabinet and reducing the cost.

Further, in a preferred embodiment, the capacitor assembly is located close to the inner side of the back of the converter body. The lower extreme of electric capacity subassembly is installed on the motor, and the upper end of electric capacity subassembly is connected with overcurrent protection device, rectification power device, direct current soft charging device and contravariant power device respectively. The capacitor assembly can be conveniently detached and installed from the back of the converter body in the installation mode, and devices on the upper portion of the capacitor assembly do not need to be detached during maintenance, so that the maintenance time can be shortened.

Specifically, in a preferred embodiment, the cooling and dehumidifying assembly comprises a water cooling plate, a radiator arranged on the water cooling plate, a water discharge nozzle and a cooling medium inlet and outlet respectively arranged at the bottom of the water cooling plate. The water-cooling plate is a second-layer structure of the converter body, and the fan assembly is located right behind the radiator.

The device that mainly generates heat in the converter is arranged on the water-cooling plate surface, and the heat of the inside other devices that generate heat of converter is taken away through the radiator on the water-cooling plate, when radiator fin temperature is lower, can regard as the interior condensation position of cabinet, assembles the water droplet of condensation to the discharge water mouth, and the discharge water mouth is connected with the emission interface through the hose, arranges the condensation water outside this body of converter. The inlet and the outlet of the cooling medium at the bottom are connected with the cooling interface through the hose, and the heat in the converter is completely taken away by the cooling medium, so that the requirement on the temperature of the external environment is reduced. Because the fan assembly is arranged right behind the radiator, hot air in the converter body is driven by the fan to blow towards the radiator, and the air cooled by the radiator blows into the converter body, so that the converter is efficiently cooled.

Further, in a preferred embodiment, the wire receptacle assembly is disposed at a determined inclination to the horizontal.

The wire holder adopts the tilting design, has greatly improved the convenience of wiring.

Specifically, in a preferred embodiment, the electrical panel assembly is a unitary structure and includes at least two layers of movable electrical panels.

The electric board assembly is designed into a whole, so that integral installation and integral disassembly are met, the electric board assembly is of a multilayer structure, single-layer electric boards can be opened, the structure is more compact due to the layout, and the convenience in maintenance is improved.

Further, in a preferred embodiment, the current transformer body further includes two sets of conductive assemblies, two ends of each conductive assembly are respectively connected with the wire holder and the overcurrent protection device, the two sets of conductive assemblies are arranged in a direction perpendicular to each other, and the ends of the two sets of conductive assemblies connected with the overcurrent protection device are close to each other.

The external cable enters the converter body through the main loop interface, is connected to one of the conductive assemblies, and then comes out of the other conductive assembly to be connected to the motor.

Compared with the prior art, the invention has the advantages that: compact structure, wiring are convenient.

Drawings

The invention will be described in more detail hereinafter on the basis of embodiments and with reference to the accompanying drawings. Wherein:

fig. 1 schematically shows the overall structure of a current transformer according to an embodiment of the present invention in a first direction;

fig. 2 schematically shows the overall structure of a current transformer according to an embodiment of the present invention in a second direction;

fig. 3 schematically shows a partial structure of a current transformer of an embodiment of the present invention.

In the drawings, like parts are provided with like reference numerals. The figures are not drawn to scale.

Detailed Description

The invention will be further explained in detail with reference to the figures and the embodiments without thereby limiting the scope of protection of the invention.

Fig. 1 schematically shows the overall structure of a current transformer 10 according to an embodiment of the present invention in a first direction. Fig. 2 schematically shows the overall structure of a current transformer 10 according to an embodiment of the present invention in a second direction. Fig. 3 schematically shows a partial structure of a current transformer 10 according to an embodiment of the present invention.

As shown in fig. 1 to 3, the inverter 10 according to the embodiment of the present invention includes an inverter body 1 and a control device 2, and the inverter body 1, the control device 2, and the compressor 3 are all disposed on the motor 4. Wherein, the converter body 1 is arranged on the top of the motor 4, the control device 2 is arranged in the inner cavity of the motor 4, and the compressor 3 is arranged at one end of the motor 4. According to the converter provided by the embodiment of the invention, the converter body is directly arranged on the motor, the compressor and the control device are integrated, the variable fluid body adopts a cabinet-free design form, and all the devices are arranged on the top plane of the motor. Compared with the prior art, the centralized arrangement mode has a more compact structure and can reduce the volume of the whole converter as much as possible. The converter, the motor, the compressor and the control device are arranged in a centralized mode, the size can be made smaller and more compact, and electric wiring is more convenient and fast.

In the embodiment of the present invention, the converter body 1 is preferably provided with a main circuit interface 11, a control circuit interface 12, a cooling interface 13 and a discharge interface 14 at the bottom. The main loop interface, the control loop interface, the cooling interface and the discharge interface are all arranged at the bottom of the converter body and are arranged at the bottom of the motor 4 through the mounting plate, so that the structure is more compact and attractive. Further, in the present embodiment, as shown in fig. 1, the main loop interface 11 and the control loop interface 12 are respectively located at two sides of the bottom of the converter body 1. Cooling port 13 and drain port 14 are located behind main circuit port 11. The main loop interface and the control loop interface are separately arranged, so that the strong current interface and the weak current interface can be separated, and the EMC design can be more reasonable.

Further, as shown in fig. 3, in the present embodiment, the current transformer body 1 further includes two sets of conductive components 116, 117, two ends of which are respectively connected to the wire holder 111 and the overcurrent protection device 112, the two sets of conductive components 116, 117 are arranged in a direction perpendicular to each other, and the ends of the two sets of conductive components 116, 117 connected to the overcurrent protection device 112 are close to each other. The external cables enter the converter body 1 through the main loop interface 11, are connected to the conductive members 116 or 117, and then exit from the conductive members 117 or 116 to be connected to the motor 4, and this layout structure minimizes the current path.

As shown in fig. 3, specifically, in the present embodiment, the inverter body 1 includes an upper cover 15 and a back cover 16, and both the upper cover 15 and the back cover 16 are detachably connected to the motor 4. Through setting up upper portion housing and back housing, can play fine guard action to the converter body to improve the protection level of converter body. In addition, because upper portion housing and back housing are connected for the dismantlement formula with the motor, therefore the inside device of converter body maintains more conveniently to be convenient for converter shell industrial modeling design, improve the product recognition degree.

Specifically, as shown in fig. 3, in the present embodiment, the converter body 1 includes a capacitor assembly 17, a cooling and dehumidifying assembly 18, a fan assembly 19, an electrical board assembly 110, a wire holder assembly 111, an overcurrent protection device 112, a rectification power device 113, a dc soft charging device 114, and an inverter power device 115. The current transformer body 1 is of a layered structure. The capacitive component 17 is arranged at the lowermost layer. The cooling dehumidification assembly 18 is disposed at the second level. The fan assembly 19, the wire holder assembly 111, the overcurrent protection device 112, the rectification power device 113, the direct current soft charging device 114 and the inverter power device 115 are arranged on a third layer. The electrical board assembly 110 is disposed in a fourth layer. The inner devices of the converter body are in a layered layout structure form, so that the layers are clear, the structure of the converter can be further compact, and the size of the converter is greatly reduced. The layout structure of the power device enables the current path to be shortest and the length of the conductive piece to be shortest, thereby being beneficial to heat dissipation in the cabinet and reducing the cost.

Further, in the present embodiment, the capacitor assembly 17 is located close to the inner side 16 of the back cover 16 of the converter body 1. The lower end of the capacitor assembly 17 is mounted on the motor 4 through a transition plate, and the upper end of the capacitor assembly 17 is connected with an overcurrent protection device 112, a rectification power device 113, a direct current soft charging device 114 and an inversion power device 115 respectively. The capacitor assembly can be conveniently detached and installed from the side face of the converter body, and devices on the upper portion of the capacitor assembly do not need to be detached during maintenance, so that the maintenance time can be shortened.

Specifically, as shown in fig. 3, in the present embodiment, the cooling and dehumidifying module 18 includes a water cooling plate 181, a radiator 182 disposed on the water cooling plate 181, a water discharge nozzle 183 and a cooling medium inlet and outlet 184 respectively disposed at the bottom of the water cooling plate 181. The water cooling plate 181 is a second layer structure of the converter body 1, and the fan assembly 19 is located right behind the radiator 182. The surface of the water cooling plate is provided with a main heating device in the converter, the heat of other heating devices in the converter is taken away through a radiator on the water cooling plate, the inlet and the outlet of a cooling medium at the bottom are connected with a cooling interface through a hose, and the heat in the converter is taken away by the cooling medium, so that the requirement on the temperature of the external environment is reduced. Because the fan assembly is arranged right behind the radiator, hot air in the converter body is driven by the fan to blow towards the radiator, and the air cooled by the radiator blows into the converter body, so that the converter is efficiently cooled. Preferably, in this embodiment, the heat sink 182 is a copper tube fin heat sink, the surface of the water cooling plate 181 is wrapped by a heat insulating layer, when the temperature of the heat dissipating fins of the copper tube fin heat sink is low, the fin portion is exposed as a concentrated condensation point, the water tube at the bottom of the water cooling plate 181 guides condensed water droplets to converge to the water discharge nozzle 183, the water discharge nozzle 183 is connected with the discharge interface 14 through a hose, and condensed water is discharged to the outside of the converter body 1 and does not flow to the surface of the motor 4.

Further, in the present embodiment, the wire holder assembly 111 is disposed at a determined inclination angle to the horizontal direction, as shown in fig. 3. The wire holder adopts the tilting design, has greatly improved the convenience of wiring. Specifically, in the present embodiment, the electrical board assembly 110 is a unitary structure and includes at least two layers of movable electrical boards. The electric board assembly is designed into a whole, so that integral installation and integral disassembly are met, the electric board assembly is of a multi-layer movable structure, opening of a single-layer electric board can be realized, the structure is more compact due to the layout, and the convenience in maintenance is improved. Particularly, a rotating structure or a drawing structure is designed on one side of each layer of the electric plate, so that the single-layer electric plate can be rotated or drawn and opened, the structure is more compact, and the maintainability is better.

According to the embodiment, the converter is compact in structure and convenient and fast in wiring.

While the invention has been described with reference to a preferred embodiment, various modifications may be made and equivalents may be substituted for elements thereof without departing from the scope of the invention. In particular, the technical features mentioned in the embodiments can be combined in any way as long as there is no structural conflict. It is intended that the invention not be limited to the particular embodiments disclosed, but that the invention will include all embodiments falling within the scope of the appended claims.