CN209071783U - A kind of liquid metal rotary electric connector - Google Patents
A kind of liquid metal rotary electric connector Download PDFInfo
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- CN209071783U CN209071783U CN201821920643.8U CN201821920643U CN209071783U CN 209071783 U CN209071783 U CN 209071783U CN 201821920643 U CN201821920643 U CN 201821920643U CN 209071783 U CN209071783 U CN 209071783U
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- liquid metal
- end cap
- rotary electric
- electric connector
- electrode
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Abstract
The utility model relates to electrical components to connect equipment technical field, disclose a kind of liquid metal rotary electric connector, comprising: fixed end cap covers in the fixing end and is configured with first through hole；Fixed electrode, the fixing end of the fixed electrode penetrate into the inside of the fixed end cap through the first through hole, wherein the fixed electrode is that integral type is connect with the fixed end cap；Rotating end cap, the rotating end cap and the fixed end cap are detachable connection, and the second through-hole is configured on the rotating end cap；Rotation electrode, the round end of the rotation electrode penetrate into the inside of the rotating end cap through second through-hole, and the accommodating chamber of energy filling liquid metal is configured between the end face of the round end and the end face of the fixing end；And bearing, the inside of the rotating end cap is set and is set in the periphery of the round end of the rotation electrode.The liquid metal rotary electric connector has the advantages that heat transfer efficiency is high, conductivity is high and harmless.
Description
Technical field
The utility model relates to electrical components to connect equipment technical field, be electrically connected more particularly to a kind of rotation of liquid metal
Connect device.
Background technique
Rotary electric connector, also referred to as brush, carbon brush, collector ring or collecting ring are exclusively used in passing when without limitation continuous rotation
Defeated power power-supply and signal power source.The application of rotary electric connector is extremely extensive, inside monitoring device, there is rotating television camera shooting
Machine, revolving stage lamps and lanterns, rotating monitoring head etc..Have in industrial equipment spooling equipment, semiconductor device, resistance cutting equipment,
Optical fiber slip ring testing and control, rotary table, resistance cutting machine, revolving light, cable drum, hot roller, printing machinery, round screen
Curtain, conductive connection of the fixed other end rotation of blender and other any one end etc..
All there is some defects for several rotary electric connectors in existing electrical component apparatus field, such as carbon brush type current collection
Ring is easy to carbon distribution during rotation, increases contact resistance, increases the frictional force between revolving part, or even can block rotation
Part causes revolving part to stop working or damage.The another kind of mercury high using thermal expansion coefficient is electrically connected as the rotation of conducting medium
Device is connect, is conducted electricity very well, but heat resistance is poor, Applicable temperature is restricted, and it is volatile when temperature is more than 60 DEG C, and can be right
Human body generates harm, needs very high installation and seal request.
Utility model content
(1) technical problems to be solved
The purpose of the utility model is to provide a kind of liquid metal rotary electric connectors, at least to solve to deposit in the prior art
Thermal conductivity it is low, conductivity is low, property stability is poor, thermal expansion coefficient is high, one of volatile and toxic technical problem.
(2) technical solution
In order to solve the above-mentioned technical problem, the utility model provides a kind of liquid metal rotary electric connector, comprising: fixed
End cap covers in the fixing end and is configured with first through hole；The fixing end of fixed electrode, the fixed electrode is logical through described first
Hole penetrates into the inside of the fixed end cap, wherein the fixed electrode is that integral type is connect with the fixed end cap；Round end
Lid, the rotating end cap and the fixed end cap are detachable connection, and the second through-hole is configured on the rotating end cap；Rotation
Turn electrode, the round end of the rotation electrode penetrates into the inside of the rotating end cap through second through-hole, in the rotation
The accommodating chamber of energy filling liquid metal is configured between the end face at end and the end face of the fixing end；And bearing, it is arranged in institute
It states the inside of rotating end cap and is set in the periphery of the round end of the rotation electrode.
Wherein, there are the first stopper section, the outer profile of first stopper section in the end side edge face structure of the fixing end
Size is greater than the outer profile size of the fixing end.
Wherein, there are the second stopper section, the outer profile of second stopper section in the end side edge face structure of the round end
Size is greater than the outer profile size of the round end.
Wherein, the accommodating chamber, the accommodating chamber are configured between first stopper section and second stopper section
Including liquid metal intermediate cavity and the outside of the liquid metal intermediate cavity is set and is connected with the liquid metal intermediate cavity
Logical liquid metal feeding chamber, wherein the Internal periphery size of the liquid metal intermediate cavity is less than the liquid metal feeding chamber
Internal periphery size.
Wherein, liquid metal supply chamber is multiple and between being in along the circumferential direction of the liquid metal intermediate cavity respectively
It is arranged every formula.
Wherein, the first seal member is installed between first stopper section and the inner sidewall of the fixed end cap.
Wherein, the bearing towards the rotating end cap side end face and the rotating end cap inner sidewall between install
There is the second seal member.
Wherein, bearing washer, the left side of the bearing washer are arranged in the periphery of the round end of the rotation electrode
It fits with the inner end right side of second stopper section, the inner end left side of the right side of the bearing washer and the bearing
It fits.
Wherein, seal washer is arranged in the periphery of the bearing washer, the left side of the seal washer and described the
The outer end right side of two stopper sections fits, and the right side of the seal washer and the outer end left side of the bearing fit.
Wherein, the fixed end cap and the rotating end cap are to be threadedly coupled, during buckle-type connect and plug-in connects
It is one of.
(3) beneficial effect
Liquid metal rotary electric connector provided by the utility model has the advantages that compared with prior art
During the work time, fixed electrode may make to fix, rotation electrode rotation also may make fixed electrode and electric rotating
Pole carries out counterclockwise or clockwise rotation simultaneously, by the way that liquid metal to be filled in end face and fixing end positioned at round end
End face between accommodating chamber in so that electric current is inputted from one of electrode, from an another outer electrode
Rotating between two electrodes without limitation and conducting function are completed in output.
Bearing is arranged in the inside of the rotating end cap and is set in the periphery of the round end of the rotation electrode.It needs to illustrate
It is the setting of the bearing, it can be ensured that the concentricity of rotation electrode during rotation avoids the rotation electrode eccentric because occurring
Rotation, to touch on the inner hole wall of the second through-hole, further, avoids the inner hole wall to the second through-hole from causing to damage.
In addition, liquid metal is as conductive and lubricant medium, electric conductivity is superior, contact resistance is small, thermal expansion coefficient is small,
It is nontoxic and not volatile, higher temperature environment can be suitable for.In addition, liquid metal also has the advantages that thermal conductivity is high, it can be fast
The mechanical fever of speed diffusion and the heat generated that is powered.Liquid metal also has preferable greasy property, and rotation electrode is relatively solid
During fixed electrode is rotated, due to being filled with liquid metal between the two, thus, it is not easy to wear, increase electric rotating
The service life of pole, reduces cost.
In addition, the liquid metal rotary electric connector of the application also has structure simple, install convenient, good seal performance,
The at low cost and good advantage of stability, is able to achieve unconfined rotation.
Detailed description of the invention
Fig. 1 is the overall structure diagram of the liquid metal rotary electric connector of embodiments herein；
Fig. 2 is the schematic diagram of internal structure of Fig. 1；
Fig. 3 is the structural schematic diagram of the accommodating chamber in Fig. 2.
In figure, 1: fixed end cap；2: fixed electrode；21: fixing end；3: rotating end cap；4: rotation electrode；41: round end；
5: accommodating chamber；51: liquid metal intermediate cavity；52: liquid metal feeding chamber；6: bearing；7: the first stopper sections；8: the second backstops
Portion；9: the first seal members；10: the second seal members；20: bearing washer；30: seal washer；40: liquid metal.
Specific embodiment
With reference to the accompanying drawings and examples, specific embodiment of the present utility model is described in further detail.Below
Example is not intended to limit the scope of the present invention for illustrating the utility model.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " is pacified
Dress ", " connected ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integrally
Connection；It can be mechanical connection, be also possible to be electrically connected；Can be directly connected, can also indirectly connected through an intermediary,
It can be the connection inside two elements.For the ordinary skill in the art, above-mentioned art can be understood with concrete condition
The concrete meaning of language in the present invention.
Embodiment 1:
As depicted in figs. 1 and 2, schematically showed in figure the liquid metal rotary electric connector include fixed end cap 1,
Fixed electrode 2, rotating end cap 3, rotation electrode 4, accommodating chamber 5 and bearing 6.
In embodiments herein, first through hole (not shown) is configured on the fixation end cap 1.
The fixing end 21 of the fixation electrode 2 penetrates into the inside of the fixation end cap 1 through the first through hole, wherein this is fixed
Electrode 2 is that integral type is connect with the fixation end cap 1.Specifically, the in the fixing end 21 of the fixation electrode 2 and fixed end cap 1
One through-hole is interference fit.In this way, being achieved that being fixedly connected for the fixation electrode 2 and fixed end cap 1.
The rotating end cap 3 and the fixation end cap 1 are detachable connection, are configured with the second through-hole on the rotating end cap 3
(not shown).Wherein, the fixation end cap 1 and rotating end cap 3 are arranged in relative type motor.
The round end 41 of the rotation electrode 4 penetrates into the inside of the rotating end cap 3 through second through-hole, in the round end 41
End face and the fixing end 21 end face between be configured with can filling liquid metal 40 accommodating chamber 5.Specifically, in the course of work
In, it may make that fixed electrode 2 is fixed, rotation electrode 4 rotates, and also may make fixed electrode 2 and rotation electrode 4 while carrying out the inverse time
Needle or clockwise rotation, by by liquid metal 40 be filled in positioned at round end 41 end face and fixing end 21 end face it
Between accommodating chamber 5 in it is complete from another outer electrode output so that electric current is inputted from one of electrode
At being rotated without limitation between two electrodes and conducting function.
Bearing 6 is arranged in the inside of the rotating end cap 3 and is set in the periphery of the round end 41 of the rotation electrode 4.It needs
Illustrate, the setting of the bearing 6, it can be ensured that the concentricity of rotation electrode 4 during rotation avoids the rotation electrode 4
Because being eccentrically rotated, to touch on the inner hole wall of the second through-hole, further, the inner hole wall to the second through-hole is avoided to make
At damage.
In addition, liquid metal 40 is as conductive and lubricant medium, electric conductivity is superior, and contact resistance is small, thermal expansion coefficient
It is small, nontoxic and not volatile, higher temperature (200 degrees Celsius or less) environment can be suitable for.In addition, liquid metal 40 also has
The high advantage of thermal conductivity can quickly spread mechanical fever and the heat generated that is powered.Liquid metal 40 also has preferable lubrication
Performance, rotation electrode 4 relative to fixed electrode 2 during being rotated, due to being filled with liquid metal 40 between the two, because
And it is not easy to wear, the service life of rotation electrode 4 is increased, cost is reduced.
In addition, the liquid metal rotary electric connector of the application also has structure simple, install convenient, good seal performance,
The at low cost and good advantage of stability, is able to achieve unconfined rotation.
In one embodiment, the material of the fixation electrode 2 and rotation electrode 4 can be stainless steel or can be with liquid gold
Belong to 40 and carries out the metal simple-substance or alloy that work normally and conductivity is high.
The fixation end cap 1 and rotating end cap 3 can also be stainless steel or can be worked normally and be led with liquid metal 40
Electric rate high metal simple-substance or alloy.
It should also be noted that, the fixation end cap 1 and rotating end cap 3 are on-insulated, mountable be fixed on any needs to revolve
In the environment of transduction electricity.
In addition, the outer diameter of the round end 41 of the rotation electrode 4 is less than the internal diameter of second through-hole, in this way, avoiding electric rotating
The inner hole wall of the second through-hole is caused because touching the inner hole wall of second through-hole during being circumferentially rotated pole 4
Damage.
It should also be noted that, the liquid metal 40 can be one of gallium-base alloy, indium-base alloy, bismuth-base alloy or more
Kind.
Wherein, which can be one of gallium, indium, tin, bismuth, zinc, aluminium or a variety of.
As shown in Fig. 2, in the comparison preferred embodiment of the application, in the end side end face structure of the fixing end 21
The first stopper section 7 is made, the outer profile size of first stopper section 7 is greater than the outer profile size of the fixing end 21.
In another preferred embodiment, there is the second stopper section 8 in the end side edge face structure of the round end 41, this
The outer profile size of two stopper sections 8 is greater than the outer profile size of the round end 41.In this way, increasing first stopper section 7 and second
The outer profile size of stopper section 8, so as to increase the accommodating chamber 5 between first stopper section 7 and the second stopper section 8
Volume further facilitates a large amount of liquid metal 40 of addition, to reach, high lubricating effect, thermal conductivity are high and conductivity is imitated
The good purpose of fruit.
As shown in Figures 2 and 3, it is also schematically shown in figure between first stopper section 7 and second stopper section 8
It is configured with the accommodating chamber 5, which includes liquid metal intermediate cavity 51 and the outside that the liquid metal intermediate cavity 51 is arranged in
And the liquid metal feeding chamber 52 being connected with the liquid metal intermediate cavity 51, wherein the lubrication groove of the liquid metal intermediate cavity 51
Wide size is less than the Internal periphery size of the liquid metal feeding chamber 52.In this way, with the continuous rotation of rotation electrode 4, it is located at the
The liquid metal 40 in liquid metal intermediate cavity 51 between one stopper section 7 and the second stopper section 8 may have loss, to keep away
Exempt from the loss due to liquid metal 40, and cause the first stopper section 7 and the second stopper section 8 there is a situation where dry wears, can pass through
So that the Internal periphery size of the liquid metal intermediate cavity 51 is less than the Internal periphery size of the liquid metal feeding chamber 52, so as to
It carries out continuously supplying liquid metal 40 to liquid metal intermediate cavity 51 by the liquid metal feeding chamber 52, avoids liquid
There is a situation where be lost for metal 40.
In another preferred embodiment, liquid metal supply chamber 52 is multiple and respectively along the liquid metal
Between chamber 51 circumferential direction in compartment arrange.In this way, supplying the quantity of chamber 52, by increasing the liquid metal so as to increase
The amount of more liquid metals 40, it is ensured that the sufficient supply of liquid metal 40 avoids that there is a situation where lack.
In another embodiment, first is equipped between first stopper section 7 and the inner sidewall of the fixation end cap 1
Seal member 9.It should be noted that the setting of first seal member 9, can be used to seal, prevent liquid metal 40 from occurring
The case where leakage.At the same time it can also play the role of buffering external force suffered between fixed electrode 2 and fixed end cap 1, avoid
Hard link occurs between the fixing end 21 of the fixation electrode 2 and fixed end cap 1, further, avoids causing the two damage
Situation.
As shown in Fig. 2, to advanced optimize the liquid metal rotary electric connector in above-mentioned technical proposal, in above-mentioned technology
On the basis of scheme, the bearing 6 towards the rotating end cap 3 side end face and the rotating end cap 3 inner sidewall between be equipped with
Second seal member 10.It should be noted that the setting of second seal member 10 can be played dust-proof and prevent liquid metal
40 there is a situation where reveal.
In a specific embodiment, first seal member 9 and the second seal member 10 can be configured to sealing ring,
Sealing strip or sealing block etc..
In another preferred embodiment, it is arranged with bearing washer 20 in the periphery of the round end 41 of the rotation electrode 4,
The left side of the bearing washer 20 and the inner end right side of second stopper section 8 fit, the right side of the bearing washer 20 with
The inner end left side of the bearing fits.Specifically, the setting of the bearing washer 20 can be used to the installation position of fixing bearing 6
It sets, prevents the bearing 6 along axially there is a situation where plays.
As shown in Fig. 2, being arranged in the periphery of the bearing washer 20 close in another preferred embodiment of the application
Seal washer 30, the left side of the seal washer 30 and the outer end right side of second stopper section 8 fit, the seal washer 30
Right side and the outer end left side of the bearing 6 fit.It should be noted that the setting of the seal washer 30, can play close
The effect of liquid metal 40 is sealed, preventing liquid metal 40, there is a situation where reveal.In addition, the seal washer 30 can also play pair
The effect that the axial direction of bearing 6 is positioned, and the work for weakening the stress impact of rotation electrode 4 in the axial direction can also be played
With.
In a preferred embodiment, the fixation end cap 1 and the rotating end cap 3 be threadedly coupled, buckle-type is connect and
One of which in plug-in connection.
In conclusion during the work time, may make that fixed electrode 2 is fixed, rotation electrode 4 rotates, and also may make fixation
Electrode 2 and rotation electrode 4 carry out counterclockwise or clockwise rotation simultaneously, are located at rotation by the way that liquid metal 40 to be filled in
In accommodating chamber 5 between the end face at end 41 and the end face of fixing end 21, so that electric current is defeated from one of electrode
Enter, from another outer electrode output, completes rotating between two electrodes without limitation and conducting function.
Bearing 6 is arranged in the inside of the rotating end cap 3 and is set in the periphery of the round end 41 of the rotation electrode 4.It needs
Illustrate, the setting of the bearing 6, it can be ensured that the concentricity of rotation electrode 4 during rotation avoids the rotation electrode 4
Because being eccentrically rotated, to touch on the inner hole wall of the second through-hole, further, the inner hole wall to the second through-hole is avoided to make
At damage.
In addition, liquid metal 40 is as conductive and lubricant medium, electric conductivity is superior, and contact resistance is small, thermal expansion coefficient
It is small, nontoxic and not volatile, higher temperature (200 degrees Celsius or less) environment can be suitable for.In addition, liquid metal 40 also has
The high advantage of thermal conductivity can quickly spread mechanical fever and the heat generated that is powered.Liquid metal 40 also has preferable lubrication
Performance, rotation electrode 4 relative to fixed electrode 2 during being rotated, due to being filled with liquid metal 40 between the two, because
And it is not easy to wear, the service life of rotation electrode 4 is increased, cost is reduced.
In addition, the liquid metal rotary electric connector of the application also has structure simple, install convenient, good seal performance,
The at low cost and good advantage of stability, is able to achieve unconfined rotation.
The above is only the preferred embodiment of the utility model only, is not intended to limit the utility model, all at this
Within the spirit and principle of utility model, any modification, equivalent replacement, improvement and so on should be included in the utility model
Protection scope within.
Claims (10)
1. a kind of liquid metal rotary electric connector characterized by comprising
Fixed end cap, covers in the fixing end and is configured with first through hole；
Fixed electrode, the fixing end of the fixed electrode penetrate into the inside of the fixed end cap through the first through hole, wherein
The fixed electrode is that integral type is connect with the fixed end cap；
Rotating end cap, the rotating end cap and the fixed end cap are detachable connection, are configured on the rotating end cap
Second through-hole；
Rotation electrode, the round end of the rotation electrode penetrates into the inside of the rotating end cap through second through-hole, in institute
State the accommodating chamber that energy filling liquid metal is configured between the end face of round end and the end face of the fixing end；And
Bearing is arranged in the inside of the rotating end cap and is set in the periphery of the round end of the rotation electrode.
2. liquid metal rotary electric connector according to claim 1, which is characterized in that in the end side of the fixing end
Edge face structure has the first stopper section, and the outer profile size of first stopper section is greater than the outer profile size of the fixing end.
3. liquid metal rotary electric connector according to claim 2, which is characterized in that in the end side of the round end
Edge face structure has the second stopper section, and the outer profile size of second stopper section is greater than the outer profile size of the round end.
4. liquid metal rotary electric connector according to claim 3, which is characterized in that in first stopper section and institute
It states and is configured with the accommodating chamber between the second stopper section, the accommodating chamber includes liquid metal intermediate cavity and is arranged in the liquid
The outside of metal intermediate cavity and the liquid metal feeding chamber being connected with the liquid metal intermediate cavity, wherein the liquid gold
The Internal periphery size for belonging to intermediate cavity is less than the Internal periphery size of the liquid metal feeding chamber.
5. liquid metal rotary electric connector according to claim 4, which is characterized in that the liquid metal supplies chamber
For it is multiple and respectively along the circumferential direction of the liquid metal intermediate cavity in compartment arrange.
6. liquid metal rotary electric connector according to claim 2, which is characterized in that in first stopper section and institute
It states and the first seal member is installed between the inner sidewall of fixed end cap.
7. liquid metal rotary electric connector according to claim 1, which is characterized in that in the bearing towards the rotation
Turn that the second seal member is installed between the side end face of end cap and the inner sidewall of the rotating end cap.
8. liquid metal rotary electric connector according to claim 3, which is characterized in that in the rotation of the rotation electrode
The periphery at end is arranged with bearing washer, and the left side of the bearing washer and the inner end right side of second stopper section are affixed
It closes, the right side of the bearing washer and the inner end left side of the bearing fit.
9. liquid metal rotary electric connector according to claim 8, which is characterized in that in the periphery of the bearing washer
It is arranged with seal washer, the left side of the seal washer and the outer end right side of second stopper section fit, described close
The right side of seal washer and the outer end left side of the bearing fit.
10. liquid metal rotary electric connector according to any one of claim 1 to 9, which is characterized in that the fixation
End cap and the rotating end cap be threadedly coupled, buckle-type connect and plug-in connect in one of which.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821920643.8U CN209071783U (en) | 2018-11-21 | 2018-11-21 | A kind of liquid metal rotary electric connector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821920643.8U CN209071783U (en) | 2018-11-21 | 2018-11-21 | A kind of liquid metal rotary electric connector |
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| Publication Number | Publication Date |
|---|---|
| CN209071783U true CN209071783U (en) | 2019-07-05 |
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ID=67100011
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821920643.8U Active CN209071783U (en) | 2018-11-21 | 2018-11-21 | A kind of liquid metal rotary electric connector |
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| CN (1) | CN209071783U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113745870A (en) * | 2021-08-24 | 2021-12-03 | 西安交通大学 | Center current-carrying guide rod and high-voltage power transmission equipment |
| CN114361843A (en) * | 2021-12-13 | 2022-04-15 | 首钢京唐钢铁联合有限责任公司 | Electric connector |
-
2018
- 2018-11-21 CN CN201821920643.8U patent/CN209071783U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113745870A (en) * | 2021-08-24 | 2021-12-03 | 西安交通大学 | Center current-carrying guide rod and high-voltage power transmission equipment |
| CN114361843A (en) * | 2021-12-13 | 2022-04-15 | 首钢京唐钢铁联合有限责任公司 | Electric connector |
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