CN217569527U

CN217569527U - Water-cooling electric vibration table capable of reducing electromagnetic loss

Info

Publication number: CN217569527U
Application number: CN202221626673.4U
Authority: CN
Inventors: 陈俊; 李一鹏
Original assignee: Suzhou Tst Control Technology Co ltd
Current assignee: Suzhou Tst Control Technology Co ltd
Priority date: 2022-06-27
Filing date: 2022-06-27
Publication date: 2022-10-14
Anticipated expiration: 2032-06-27

Abstract

The utility model discloses a water-cooling electric vibration table for reducing electromagnetic loss, which comprises a magnetic circuit component and a moving coil component, wherein the magnetic circuit component comprises a magnetic cylinder and a central magnetic pole, the central magnetic pole is arranged in the magnetic cylinder, and a magnetic gap is formed between the magnetic cylinder and the central magnetic pole; the moving coil assembly comprises a moving coil framework and a driving coil, the driving coil is fixed on the moving coil framework, at least part of the driving coil is positioned in the magnetic gap, magnetic fluid is distributed in the magnetic gap, and the magnetic fluid is directly contacted with the driving coil; the drive coil is formed by the hollow conductor coiling, hollow conductor inner chamber and cooling water circulating equipment intercommunication, the utility model has the advantages of, through add the magnetic current body in the magnetic gap, effectively improved the magnetic field intensity in the magnetic gap, utilize water-cooling mechanism to realize high-efficient cooling to the drive coil subassembly under operating condition simultaneously, improved load current, and do not influence the distribution of magnetic current body in the magnetic gap.

Description

Water-cooling electric vibration table capable of reducing electromagnetic loss

Technical Field

The utility model relates to an electronic shaking table especially relates to a reduce water-cooling electronic shaking table of electromagnetic loss.

Background

The electric vibration table generally comprises a vibration table body, a magnetic circuit assembly, a moving coil assembly and the like, wherein the magnetic circuit assembly comprises a magnetic cylinder, a central magnetic pole, an excitation coil and the like, the moving coil assembly comprises a driving coil and a moving coil framework, the driving coil is composed of a conducting wire wound on the moving coil framework, and the driving coil is usually partially or completely positioned in a magnetic gap between the magnetic cylinder and the central magnetic pole. The working principle of the electric vibration table is as follows: current is introduced into the excitation coil, and a magnetic field can be formed in the magnetic gap; alternating current is introduced into the driving coil, and the driving coil can drive the movable coil framework to reciprocate up and down under the action of a magnetic field in the magnetic gap. The magnitude of the thrust provided by the electric vibration table is generally determined by the specifications of the magnetic circuit component and the moving coil component, and therefore, the upper limit exists. How to utilize the electric vibration table of fixed specification to satisfy the demand of different vibration tests, especially exceed the test demand of its thrust upper limit, and do not cause damage to it, the difficult problem that the personnel of this field hoped to solve always.

The information disclosed in this background section is only for enhancement of understanding of the general background of the invention and should not be taken as an acknowledgement or any form of suggestion that this information forms the prior art that is already known to a person skilled in the art.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a reduce water-cooling electric vibration platform of electromagnetic loss, it can reduce the electromagnetic loss, improves the load current of drive coil under the equal voltage load through reducing operating condition drive coil temperature simultaneously to the promotion of electric vibration platform wholeness ability has been realized.

In order to achieve the purpose, the utility model provides a water-cooling electric vibration table capable of reducing electromagnetic loss, which comprises a magnetic circuit component and a moving coil component, wherein the magnetic circuit component comprises a magnetic cylinder and a central magnetic pole, the central magnetic pole is arranged in the magnetic cylinder, and a magnetic gap is formed between the magnetic cylinder and the central magnetic pole; the moving coil assembly comprises a moving coil framework and a driving coil, the driving coil is fixed on the moving coil framework, at least part of the driving coil is positioned in the magnetic gap, magnetic fluid is distributed in the magnetic gap, and the magnetic fluid is in direct contact with the driving coil; the drive coil is formed by winding a hollow wire, a cooling water inlet and a cooling water outlet are respectively arranged at two ends of the hollow wire, and the cooling water inlet and the cooling water outlet are communicated with cooling water circulation equipment.

In one or more embodiments, a cooling water channel is formed in the moving coil framework, and the cooling water inlet and the cooling water outlet are communicated with cooling water circulation equipment through the cooling water channel.

In one or more embodiments, the cooling water passage communicates with the cooling water circulation device through a hose.

In one or more embodiments, the cylinder is cylindrical, the central magnetic pole is cylindrical, the cylinder is disposed coaxially with the central magnetic pole, and an annular magnetic gap is formed between an inner wall of the cylinder and an outer circumferential surface of the central magnetic pole.

In one or more embodiments, the magnetic fluid is uniformly distributed in a ring shape in the magnetic gap.

In one or more embodiments, the hollow conductor has a rectangular cross-section.

In one or more embodiments, the magnetic circuit assembly further comprises a vibration table body, and the magnetic circuit assembly is arranged in the vibration table body.

In one or more embodiments, the driving coil is electrically connected with a wiring mechanism on the vibration table body through a U-shaped conductive spring, one end of the U-shaped conductive spring is fixed on the vibration table body, and the other end of the U-shaped conductive spring is fixed on the movable coil framework.

Compared with the prior art, the utility model has the advantages of: magnetic fluid which is directly contacted with the driving coil is distributed in the magnetic gap, the magnetic field intensity B in the magnetic gap is effectively improved by adding the magnetic fluid in the magnetic gap, the cooling of the driving coil can be realized under the working state by a water cooling structure which is constructed by a cooling water inlet, a cooling water outlet and cooling water circulation equipment, the load current I in the driving coil assembly under the same voltage load is improved, the distribution of the magnetic fluid in the magnetic gap is not influenced, and the exciting force F = I × BL of the electric vibration table is comprehensively improved. The utility model provides a technical scheme can realize magnetic field intensity B and load current I's effective promotion, can rationally identify exciting force F also can promote thereupon, and then can realize the promotion of the whole load of electric vibration platform, and then make electric vibration platform can provide the thrust that surpasss its specification, satisfy multiple vibration test's demand, moving coil subassembly and magnetic fluid are direct with this water-cooling structure simultaneously, abundant contact, can shift the heat that the moving coil subassembly produced at the during operation rapidly, form effective guarantee to electric vibration platform, stop to make its overheated impaired circumstances etc, promote the security and the stability of its work.

Drawings

Fig. 1 is a schematic structural view of a water-cooling electric vibration table for reducing electromagnetic loss according to the present invention;

fig. 2 is a schematic view of the winding structure of the hollow wire in the water-cooling electric vibration table for reducing electromagnetic loss.

In the figure: 1. a magnetic circuit component; 11. a magnetic cylinder; 12. a central magnetic pole; 2. a moving coil assembly; 21. a moving coil framework; 22. a drive coil; 23. a hollow wire; 3. a magnetic fluid; 4. a cooling water inlet; 5. a cooling water outlet; 6. a cooling water passage; 7. cooling water circulation equipment; 8. a vibration table body; 9. u-shaped conductive spring.

Detailed Description

The following detailed description of the present invention is provided in conjunction with the accompanying drawings, but it should be understood that the scope of the present invention is not limited by the following detailed description.

Throughout the specification and claims, unless explicitly stated otherwise, the term "comprise" or variations such as "comprises" or "comprising", etc., will be understood to imply the inclusion of a stated element or component but not the exclusion of any other element or component.

As shown in fig. 1, the magnetic circuit assembly 1 in the water-cooled electric vibration table for reducing electromagnetic loss comprises a magnetic cylinder 11 and a central magnetic pole 12, wherein the central magnetic pole 12 is arranged in the magnetic cylinder 11, and a magnetic gap is formed between the magnetic cylinder 11 and the central magnetic pole 12; the moving coil component 2 comprises a moving coil framework 21 and a driving coil 22, a constant magnetic field is provided for the moving coil component 2 by the magnetic circuit component 1 in a working state, the moving coil component 2 is electrified to execute a preset action, and the electric vibration table is matched with a power amplifier and a vibration control system to finish sine, random, impact and other reliability experiments, thereby simulating the vibration condition of the real using environment of a product, on the premise, magnetofluid 3 which is directly contacted with the driving coil 22 is distributed in a magnetic gap between the magnetic cylinder 11 and the central magnetic pole 12, the magnetofluid 3 replaces air between the magnetic circuit component 1 and the moving coil component 2 in the air-cooled vibration table and water between the magnetic circuit component 1 and the moving coil component 2 in the traditional water-cooled vibration table to be used as a magnetic conductive medium, the experiment shows that the attenuation of the constant magnetic field provided by the magnetic circuit component 1 by adopting the magnetofluid 3 as the magnetic conductive medium in the working state is reduced by 12-18%, the magnetic field intensity under the working state is directly improved, and under the working state, the whole state of the magnetic fluid 3 serving as a filling layer needs to be kept stable, so that the magnetic fluid cannot be adapted to an air-cooled electric vibration table, and only the driving coil 22 wound by the hollow lead 23 can be adapted, and the cooling of the moving coil assembly 2 is realized by a water-cooling structure constructed by the cooling water inlet 4, the cooling water outlet 5 and the cooling water circulation device 7 which are connected to two ends of the hollow lead 23, so that the technical scheme can be summarized in that the magnetic fluid 3 which is directly contacted with the driving coil 22 is distributed in a magnetic gap, the filling of the magnetic fluid 3 can effectively reduce the attenuation generated when the magnetic field intensity provided by the magnetic circuit assembly 1 is transmitted to the driving coil 22, the magnetic field intensity B received by the driving coil 22 is improved, and the water-cooling structure constructed by the cooling water inlet 4, the cooling water outlet 5 and the cooling water circulation device 7 can actually carry out the attenuation on the driving coil 22 under the working state Now the cooling, the load current I in the drive coil 22 subassembly under the equal voltage load has been improved, it is well known, the exciting force F = I BL of electric vibration platform, the utility model provides a technical scheme can realize magnetic field intensity B and load current I's effective promotion, can rationally identify exciting force F and also can promote thereupon, and then can realize the promotion of electric vibration platform overall load, and then make electric vibration platform can provide the thrust that surpasss its specification, satisfy the demand of multiple vibration test, moving coil subassembly 2 and magnetic fluid 3 are direct with this water-cooling structure simultaneously, abundant contact, can shift moving coil subassembly 2 heat that the during operation produced rapidly, form effective guarantee to electric vibration platform, stop to make its overheated impaired circumstances such as overheat, promote the security and the stability of its work.

When the drive coil 22 formed by winding the hollow lead 23 and the drive coil 22 and the magnetic fluid 3 are cooled by the water cooling structure constructed by the cooling water inlet 4, the cooling water outlet 5 and the cooling water circulation device 7 connected to the two ends of the hollow lead 23, the stable connection of the cooling water inlet 4 and the cooling water outlet 5 with the hollow lead 23 is required to be ensured, the stability of the magnetic fluid 3 is damaged when the cooling water flows into the magnetic gap due to the falling of the joint is avoided, the cooling water channel 6 is required to be arranged on the moving coil framework 21, and the cooling water inlet and the cooling water outlet 5 are communicated with the cooling water circulation device 7 through the cooling water channel 6, specifically, the cooling water channel 6 is communicated with the cooling water circulation device 7 through a hose. The hollow conductor 23 is used as a heat exchanging part between the water cooling mechanism and the moving coil module 2, and it is necessary that the side wall of the hollow conductor 23 is attached to the moving coil frame 21 as much as possible, so that the cross section of the hollow conductor 23 is rectangular.

In the common configuration of the electric vibration table, because the circular structure is uniform and stable, the bearing capacity in each direction is uniformly distributed, the magnetic cylinder 11 is arranged to be cylindrical, the central magnetic pole 12 is cylindrical, the magnetic cylinder 11 and the central magnetic pole 12 are coaxially arranged, an annular magnetic gap is formed between the inner wall of the magnetic cylinder 11 and the outer peripheral surface of the central magnetic pole 12, the magnetic fluid 3 is uniformly distributed in the magnetic gap in an annular manner, the uniform thickness of the magnetic fluid 3 in each region in the magnetic gap can be ensured, the uniform magnetic field intensity received by the moving coil assembly 2 from each direction can be further ensured, and the stability of the whole working state of the electric vibration table can be further ensured.

In the operational environment of actual products, magnetic circuit component 1 and moving coil component 2 all will dispose shaking table stage body 8 and carry out work as equipment housing and test plane, magnetic circuit component 1 is built-in shaking table stage body 8, during the concrete implementation, drive coil 22 is connected through the wiring mechanism electricity on U type conductive spring 9 and the shaking table stage body 8, U type conductive spring 9 one end is fixed on shaking table stage body 8, the other end is fixed on moving coil skeleton 21, U type conductive spring 9 can guarantee under the prerequisite that does not influence moving coil component 2 normal motion that it can be effectively connected on shaking table stage body 8.

The foregoing descriptions of specific exemplary embodiments of the present invention have been presented for purposes of illustration and description. It is not intended to limit the invention to the precise form disclosed, and obviously many modifications and variations are possible in light of the above teaching. The exemplary embodiments were chosen and described in order to explain certain principles of the invention and its practical application to enable one skilled in the art to make and use various exemplary embodiments of the invention and various alternatives and modifications as are suited to the particular use contemplated. It is intended that the scope of the invention be defined by the claims and their equivalents.

Claims

1. The utility model provides a reduce electromagnetic loss's water-cooling electric vibration table, includes magnetic circuit subassembly and moving coil subassembly, its characterized in that: the magnetic circuit assembly comprises a magnetic cylinder and a central magnetic pole, the central magnetic pole is arranged in the magnetic cylinder, and a magnetic gap is formed between the magnetic cylinder and the central magnetic pole; the moving coil assembly comprises a moving coil framework and a driving coil, the driving coil is fixed on the moving coil framework, at least part of the driving coil is positioned in the magnetic gap, magnetic fluid is distributed in the magnetic gap, and the magnetic fluid is directly contacted with the driving coil; the drive coil is formed by winding a hollow wire, a cooling water inlet and a cooling water outlet are respectively arranged at two ends of the hollow wire, and the cooling water inlet and the cooling water outlet are communicated with cooling water circulation equipment.

2. The water-cooled electric vibration table capable of reducing electromagnetic loss according to claim 1, wherein: and the moving coil framework is provided with a cooling water channel, and the cooling water inlet and the cooling water outlet are communicated with cooling water circulation equipment through the cooling water channel.

3. The water-cooled electric vibration table capable of reducing electromagnetic loss according to claim 2, characterized in that: the cooling water channel is communicated with the cooling water circulation equipment through a hose.

4. The water-cooled electric vibration table capable of reducing electromagnetic loss according to claim 1, wherein: the magnetic cylinder is cylindrical, the central magnetic pole is cylindrical, the magnetic cylinder and the central magnetic pole are coaxially arranged, and an annular magnetic gap is formed between the inner wall of the magnetic cylinder and the outer peripheral surface of the central magnetic pole.

5. The water-cooled electric vibration table capable of reducing electromagnetic loss according to claim 4, wherein: the magnetic fluid is uniformly distributed in the magnetic gap in an annular shape.

6. The water-cooled electric vibration table capable of reducing electromagnetic loss according to claim 1, wherein: the section of the hollow lead is rectangular.

7. The water-cooled electric vibration table capable of reducing electromagnetic loss according to claim 1, wherein: still include the shaking table stage body, magnetic circuit component sets up in the shaking table stage body.

8. The water-cooled electric vibration table capable of reducing electromagnetic loss according to claim 7, wherein: the drive coil is electrically connected with a wiring mechanism on the vibration table body through a U-shaped conductive spring, one end of the U-shaped conductive spring is fixed on the vibration table body, and the other end of the U-shaped conductive spring is fixed on the movable coil framework.