Efficient cooling liquid cooling type permanent magnet speed regulator

Abstract

The utility model provides an efficient cooling liquid cooling type permanent magnet speed regulator which comprises a permanent magnet speed regulator body, an output shaft is arranged in the middle of the permanent magnet speed regulator body, the outside of the output shaft is connected with a conductor disc through a conductor steel disc, a cooling liquid flow channel is arranged in the output shaft, and the cooling liquid flow channel is connected with a rotary joint through a connecting sleeve. The rotary joint is connected with a cooling liquid pipe, the cooling liquid pipe is communicated with an internal cooling liquid channel, and the internal cooling liquid channel is arranged in the conductor disc; the rotating joint cooling liquid pipeline and the permanent magnet rotor are relatively static, so that the cooling liquid can be fully sprayed into the conductor disc and the rotor assembly cooling flow channel, the conductor disc can be fully cooled, all problems existing in an existing cooling structure can be thoroughly solved, and long-term stable operation of the permanent magnet speed regulator is ensured.

Description

Technical Field

[0001] The utility model relates to the field of permanent magnet speed regulators, in particular to a high-efficiency liquid-cooled permanent magnet speed regulator. Background Art

[0002] The operating principle of a permanent magnet speed controller is that the conductive material on the conductor disk cuts the magnetic lines of force on the permanent magnet disk, generating eddy currents and forming an induced magnetic field. The interaction between the permanent and induced magnetic fields transmits torque. During operation, the conductor disk of a permanent magnet speed controller generates heat. Low-power permanent magnet speed controllers can be cooled by air, without the need for auxiliary cooling systems. However, high-power devices require auxiliary cooling systems, primarily liquid cooling, to cool the conductor disk.

[0003] The existing permanent magnet speed regulator liquid cooling system mainly uses a nozzle to spray coolant onto the conductor disk to cool the conductor disk, which has the following problems:

[0004] 1. The conductor disc rotates at high speed, and when the coolant is sprayed onto the conductor disc through the nozzle, splashing and rebounding will occur, resulting in low coolant utilization rate;

[0005] 2. The conductor disk rotates at high speed, and the coolant stays on the surface of the conductor disk for too short a time, resulting in insufficient heat exchange;

[0006] 3. The conductor disk rotates at high speed, and the distribution of coolant on the surface of the conductor disk mainly depends on centrifugation. There is a serious problem of uneven distribution, which will cause local overheating of the conductor disk;

[0007] 4. Due to the influence of layout and gravity, the cooling effect of the lower plate has always been inferior to that of the upper plate; most liquid-cooled permanent magnet speed regulators are damaged first by the lower plate;

[0008] The above situation may lead to insufficient or uneven cooling of the conductor disk inside the existing permanent magnet speed regulator, and in severe cases may even cause the conductor disk to overheat and burn.

[0009] Therefore, there is an urgent need for a high-efficiency liquid-cooled permanent magnet speed regulator that can solve the above problems. Utility Model Content

[0010] The purpose of the utility model is to provide a high-efficiency liquid-cooled permanent magnet speed regulator to solve the problems existing in the above-mentioned prior art.

[0011] To achieve the above purpose, the present invention provides the following solutions:

[0012] The utility model provides a high-efficiency cooling liquid-cooled permanent magnet speed regulator, comprising a permanent magnet speed regulator body, an output shaft being provided in the middle of the permanent magnet speed regulator, the outside of the output shaft being connected to a conductor disk via a conductor steel disk, a coolant flow channel being provided inside the output shaft, the coolant flow channel being connected to a rotary joint via a connecting sleeve, the rotary joint being connected to a coolant pipe, the coolant pipe being in communication with an internal coolant channel, and the internal coolant channel being provided inside the conductor disk.

[0013] Preferably, the side of the rotary joint and the side of the output shaft are both provided with coolant holes, and the coolant holes are connected through the connecting sleeve.

[0014] Preferably, the rotary joint is connected to the coolant pipe through a first ferrule-type straight pipe joint.

[0015] Preferably, the coolant pipe is connected to the internal coolant channel through a second ferrule-type straight-through pipe joint and a ferrule-type right-angle pipe joint.

[0016] Compared with the prior art, the present invention has achieved the following beneficial technical effects:

[0017] The utility model provides a high-efficiency cooling liquid-cooled permanent magnet speed regulator, comprising a permanent magnet speed regulator body, an output shaft being provided in the middle of the permanent magnet speed regulator, the outside of the output shaft being connected to a conductor disk via a conductor steel disk, a coolant flow channel being provided inside the output shaft, the coolant flow channel being connected to a rotary joint via a connecting sleeve, the rotary joint being connected to a coolant pipe, the coolant pipe being in communication with an internal coolant channel, and the internal coolant channel being provided inside the conductor disk; by keeping the rotary joint coolant pipe and the permanent magnet rotor relatively stationary, the coolant can be fully sprayed into the conductor disk and the cooling flow channel of the rotor assembly, thereby ensuring that the conductor disk is fully cooled, completely solving all problems existing in the existing cooling structure, and ensuring long-term stable operation of the permanent magnet speed regulator. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0019] Figure 1 This is a schematic structural diagram of a high-efficiency liquid-cooled permanent magnet speed regulator provided by the utility model;

[0020] Figure 2 This is a cross-sectional view of the cooling structure of a high-efficiency liquid-cooled permanent magnet speed regulator provided by the utility model;

[0021] Figure 3 The present invention provides a schematic diagram of the structure of the rotary joint portion of a high-efficiency liquid-cooled permanent magnet speed regulator. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0023] The purpose of the utility model is to provide a high-efficiency liquid-cooled permanent magnet speed regulator to solve the problems existing in the prior art.

[0024] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below with reference to the accompanying drawings and specific implementation methods.

[0025] Example 1:

[0026] This embodiment provides a high-efficiency liquid-cooled permanent magnet speed regulator, such as Figure 1 and 2 As shown, it includes a permanent magnet speed regulator body, an output shaft 7 is provided in the middle of the permanent magnet speed regulator, the outside of the output shaft 7 is connected to a conductor disk 9 through a conductor steel disk 8, a coolant flow channel is provided inside the output shaft 7, the coolant flow channel is connected to the rotary joint 5 through a connecting sleeve 6, the rotary joint 5 is connected to the coolant pipe 3, the coolant pipe 3 is connected to the internal coolant channel 11, and the internal coolant channel 11 is provided in the conductor disk 9.

[0027] As an embodiment, coolant holes 10 are provided on the side of the rotary joint 5 and the side of the output shaft 7, and the coolant holes 10 are connected through the connecting sleeve 6. Similarly, a similar channel can also be provided at the coolant inlet to ensure that the coolant can smoothly enter the coolant flow channel inside the output shaft 7.

[0028] As an embodiment, the rotary joint 5 is connected to the coolant pipe 3 through the first ferrule straight pipe joint 4 .

[0029] As an embodiment, the coolant pipe 3 is connected to the internal coolant channel 11 through the second ferrule-type straight pipe joint 2 and the ferrule-type right-angle pipe joint 1.

[0030] The utility model provides a high-efficiency liquid-cooled permanent magnet speed regulator, whose working principle is as follows: the coolant enters the coolant pipe 3 through the coolant flow channel inside the output shaft 7 through the rotary joint 5, so that the coolant can be directly sprayed into the internal cooling liquid channel 11 of the permanent magnet speed regulator, thereby achieving sufficient cooling of the liquid-cooled permanent magnet speed regulator without increasing much cost. Since the conductor disk is fully cooled, the service life of the equipment can be greatly extended.

[0031] This utility model uses specific examples to illustrate the principles and implementation methods of this utility model. The above examples are only used to help understand the method and core concept of this utility model. At the same time, for those skilled in the art, according to the concept of this utility model, there may be changes in the specific implementation methods and application scope. In summary, the content of this specification should not be understood as limiting the utility model.

Claims

1. A high-efficiency liquid-cooled permanent magnet speed regulator, comprising a permanent magnet speed regulator body, an output shaft provided in the middle of the permanent magnet speed regulator, the outer portion of the output shaft being connected to a conductor disk via a conductor steel disk, characterized in that: A coolant channel is provided inside the output shaft, the coolant channel is connected to a rotary joint through a connecting sleeve, the rotary joint is connected to a coolant pipe, the coolant pipe is in communication with an internal coolant channel, and the internal coolant channel is provided in the conductor disk.

2. The high-efficiency liquid-cooled permanent magnet speed regulator according to claim 1 is characterized in that: The side of the rotary joint and the side of the output shaft are both provided with cooling liquid holes, and the cooling liquid holes are communicated through the connecting sleeve.

3. The high-efficiency liquid-cooled permanent magnet speed regulator according to claim 1 is characterized in that: The rotary joint is connected to the coolant pipe through a first ferrule-type straight pipe joint.

4. The high-efficiency liquid-cooled permanent magnet speed regulator according to claim 1 is characterized in that: The coolant pipe is communicated with the internal coolant channel through a second ferrule-type straight pipe joint and a ferrule-type right-angle pipe joint.

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