CN208489149U - A kind of micro vacuum contact head mechanism and vacuum contact miniature circuit breaker - Google Patents
A kind of micro vacuum contact head mechanism and vacuum contact miniature circuit breaker Download PDFInfo
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- CN208489149U CN208489149U CN201821342844.4U CN201821342844U CN208489149U CN 208489149 U CN208489149 U CN 208489149U CN 201821342844 U CN201821342844 U CN 201821342844U CN 208489149 U CN208489149 U CN 208489149U
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- moving contact
- interconnecting piece
- opening portion
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Abstract
The utility model discloses a kind of micro vacuum contact head mechanism and vacuum contact miniature circuit breakers, are related to safety technique for using electricity field.The micro vacuum contact head mechanism includes shell, static contact, moving contact, bellows, elastic component and pressing plate.Static contact is fixedly installed in closure, moving contact is movably installed in opening portion, one end of bellows is fixedly installed in interconnecting piece, other end fixing sleeve is set to outside moving contact, closure, interconnecting piece, bellows and moving contact combine to form vacuum cavity, pressing plate fixing sleeve is set to outside moving contact, and one end and the pressing plate of elastic component support, and the other end is supported with interconnecting piece.Compared with prior art, the elastic component that micro vacuum contact head provided by the utility model mechanism forms moving contact, bellows and the shell of vacuum cavity and support with pressing plate due to using combination, so the work for connecing electricity and powering off can be completed under vacuum conditions, electric spark will not be generated, it is highly-safe, and facilitate installation and maintenance, it is practical.
Description
Technical field
The utility model relates to safety technique for using electricity field, in particular to a kind of micro vacuum contact head mechanism with
And vacuum contact miniature circuit breaker.
Background technique
Breaker is the electric current referred to close, carry and cut-off under normal loop condition and can close, when defined
Interior carrying and the switching device for cut-offfing the electric current under abnormal loop condition.Breaker is divided into high-voltage circuitbreaker by its use scope
With low-voltage circuit breaker, high-low pressure identification of boundaries is relatively fuzzyyer, and 3kV or more is generally known as High-Voltage Electrical Appliances.Breaker can be used to
Electric energy is distributed, asynchronous motor is infrequently started, the implementations such as power circuit and motor are protected, when their generations are serious
Energy automatic shutdown circuit when the failures such as overload or short circuit, function are equivalent to Fuse switch and cross underheat relay etc.
Combination, and do not need change components generally after disjunction fault current.
Now, during generation, conveying and the use of electricity, distribution is an extremely important link, and in distribution
In system, miniature circuit breaker becomes an essential safety protection facility.Miniature circuit breaker can be generated in divide-shut brake
Electric arc, since volume is limited, short circuit operation breaking capacity is relatively low (general 6kA), can be used only in end electric appliance distribution.Many fields
(such as substation, power distribution station, switching station etc.) prospective short circuit current is closed not to be available greatly very much.Inventor is the study found that increase two
Though opening away from that can improve breaking capacity between contact, synchronizes the volume for increasing miniature circuit breaker, so that the miniature circuit breaker is not
It is suitable for the lesser occasion in space again；Using magnetic blow-out and air-blow technology, by arc-chute blow-out, breaking capacity by volumetric constraint according to
So it is difficult to improve.
In view of this, it is miniature disconnected to design and manufacture a kind of safe and practical micro vacuum contact head mechanism and vacuum contact
Road device is especially particularly important in breaker production.
Utility model content
The purpose of this utility model is to provide a kind of micro vacuum contact head mechanisms, and structure is simple, facilitates installation and dimension
Shield, and can complete to connect the work of electricity and power-off under vacuum conditions, electric spark will not be generated, it is highly-safe, it is practical.
The another object of the utility model is to provide a kind of vacuum contact miniature circuit breaker, and structure is simple, facilitates installation
And maintenance, and can complete to connect the work of electricity and power-off under vacuum conditions, and electric spark will not be generated, it is highly-safe, it is practical
Property is strong, and user experience is good.
The utility model is that it is realized by adopting the following technical scheme.
A kind of micro vacuum contact head mechanism, including shell, static contact, moving contact, bellows, elastic component and pressing plate, outside
Shell includes closure, interconnecting piece and opening portion, and closure is integrally formed by interconnecting piece and opening portion, and static contact is fixedly installed in
In closure, moving contact is movably installed in opening portion, and moving contact can be slided relative to opening portion, and be abutted with static contact, wave
One end of line pipe is fixedly installed in interconnecting piece, other end fixing sleeve be set to moving contact outside, closure, interconnecting piece, bellows and
Moving contact combines to form vacuum cavity, and pressing plate fixing sleeve is set to outside moving contact, and is set in interconnecting piece, one end of elastic component with
Pressing plate supports, and the other end is supported with interconnecting piece, and elastic component can generate elastic band dynamic pressure plate and support with opening portion, so that moving contact
It is separated with static contact.
Further, interconnecting piece is inwardly projecting is provided with first step, and elastic component is sheathed on outside moving contact, elastic component and
One step supports.
Further, elastic component is tower-shaped spring.
Further, interconnecting piece is inwardly projecting is provided with second step, and the width of second step is greater than the width of first step
Degree, second step are set to side of the first step far from opening portion, and bellows is fixedly connected with second step.
Further, moving contact includes integrally formed first end and the second end, and the cross-sectional area of the second end is big
In the cross-sectional area of first end, the second end is provided with step surface close to the side of first end, and bellows and step surface are solid
Fixed connection, pressing plate fixing sleeve are set to outside first end, and first end is slideably positioned in opening portion.
Further, moving contact further includes contact part, and contact part is connected to side of the second end far from first end, touching
Abutted with static contact to selective.
Further, shell is cylindrical, and in a ring, opening portion is provided with centre bore, moving contact and centre bore for opening portion
Cooperation, and can be slided relative to centre bore.
Further, closure offers threaded hole far from the side of opening portion, and threaded hole is used for and screw fit, screw
For being connected to extraneous power supply or electric appliance.
Further, interconnecting piece is made of ceramic materials, and closure and opening portion are made of electrically conductive material.
A kind of vacuum contact miniature circuit breaker, including above-mentioned micro vacuum contact head mechanism, the micro vacuum contact head
Mechanism includes shell, static contact, moving contact, bellows, elastic component and pressing plate, and shell includes closure, interconnecting piece and opening portion,
Closure is integrally formed by interconnecting piece and opening portion, and static contact is fixedly installed in closure, and moving contact is movably installed in out
Portion is put, moving contact can be slided relative to opening portion, and be abutted with static contact, and one end of bellows is fixedly installed in interconnecting piece
Interior, other end fixing sleeve is set to outside moving contact, and closure, interconnecting piece, bellows and moving contact combine to form vacuum cavity, pressing plate
Fixing sleeve is set to outside moving contact, and is set in interconnecting piece, and one end and the pressing plate of elastic component support, and the other end is supported with interconnecting piece
It holds, elastic component can generate elastic band dynamic pressure plate and support with opening portion, so that moving contact is separated with static contact.
Micro vacuum contact head provided by the utility model mechanism and vacuum contact miniature circuit breaker have beneficial below
Effect:
Micro vacuum contact head provided by the utility model mechanism, static contact are fixedly installed in closure, and moving contact is living
Dynamic to be installed on opening portion, moving contact can be slided relative to opening portion, and be abutted with static contact, and one end of bellows is fixedly mounted
In in interconnecting piece, other end fixing sleeve is set to outside moving contact, and closure, interconnecting piece, bellows and moving contact combine to form vacuum
Cavity, pressing plate fixing sleeve are set to outside moving contact, and are set in interconnecting piece, and one end and the pressing plate of elastic component support, the other end and
Interconnecting piece supports, and elastic component can generate elastic band dynamic pressure plate and support with opening portion, so that moving contact is separated with static contact.With it is existing
There is technology to compare, micro vacuum contact head provided by the utility model mechanism forms the dynamic touching of vacuum cavity due to using combination
Head, bellows and shell and the elastic component supported with pressing plate, so the work for connecing electricity and powering off can be completed under vacuum conditions
Make, electric spark will not be generated, it is highly-safe, and facilitate installation and maintenance, it is practical.
Vacuum contact miniature circuit breaker provided by the utility model, including micro vacuum contact head mechanism, structure is simple, energy
The enough work for completing to connect electricity and power-off under vacuum conditions, will not generate electric spark, highly-safe, and facilitate installation and dimension
Shield, practical, user experience is good.
Detailed description of the invention
It, below will be to use required in embodiment in order to illustrate more clearly of the technical solution of the utility model embodiment
Attached drawing be briefly described, it should be understood that the following drawings illustrates only some embodiments of the utility model, therefore should not be by
Regard the restriction to range as, for those of ordinary skill in the art, without creative efforts, may be used also
To obtain other relevant attached drawings according to these attached drawings.
Fig. 1 is that vacuum contact miniature circuit breaker provided by the embodiment of the utility model is in the structural representation under over-current state
Figure；
Fig. 2 is vacuum contact miniature circuit breaker structural representation under normal condition provided by the embodiment of the utility model
Figure；
Fig. 3 is that micro vacuum contact head provided by the embodiment of the utility model mechanism is in the structural representation under over-current state
Figure；
Fig. 4 is the structural representation under normal condition of micro vacuum contact head provided by the embodiment of the utility model mechanism
Figure.
Icon: 10- vacuum contact miniature circuit breaker；100- micro vacuum contact head mechanism；110- shell；111- closing
Portion；112- interconnecting piece；The opening portion 113-；114- first step；115- second step；116- centre bore；117- threaded hole；120-
Static contact；130- moving contact；131- first end；132- the second end；133- contact part；134- step surface；140- bellows；
150- elastic component；160- pressing plate；170- vacuum cavity；200- trip switch；300- complete machine shell；The first connecting terminal of 400-；
The second connecting terminal of 500-；600- combined floodgate spanner；700- tripping mechanism.
Specific embodiment
It is practical new below in conjunction with this to keep the objectives, technical solutions, and advantages of the embodiments of the present invention clearer
Attached drawing in type embodiment, the technical scheme in the utility model embodiment is clearly and completely described, it is clear that is retouched
The embodiment stated is the utility model a part of the embodiment, instead of all the embodiments.Usually here in attached drawing description and
The component of the utility model embodiment shown can be arranged and be designed with a variety of different configurations.
Therefore, requirement is not intended to limit to the detailed description of the embodiments of the present invention provided in the accompanying drawings below
The scope of the utility model of protection, but it is merely representative of the selected embodiment of the utility model.Based in the utility model
Embodiment, every other embodiment obtained by those of ordinary skill in the art without making creative efforts, all
Belong to the range of the utility model protection.
It should also be noted that similar label and letter indicate similar terms in following attached drawing, therefore, once a certain Xiang Yi
It is defined in a attached drawing, does not then need that it is further defined and explained in subsequent attached drawing.
In the description of the present invention, it should be noted that term "inner", "outside", "upper", "lower", "horizontal" etc. refer to
The orientation or positional relationship shown is to be based on the orientation or positional relationship shown in the drawings or when utility model product uses is used
The orientation or positional relationship often put, is merely for convenience of describing the present invention and simplifying the description, rather than indication or suggestion
Signified device or element must have a particular orientation, be constructed and operated in a specific orientation, therefore should not be understood as to this
The limitation of utility model.In addition, term " first ", " second ", " third " etc. are only used for distinguishing description, and should not be understood as indicating
Or imply relative importance.
In the description of the present invention, it should also be noted that, unless otherwise clearly defined and limited, term " is set
Set ", " connected ", " installation ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection,
Or it is integrally connected；It can be mechanical connection, be also possible to be electrically connected；It can be directly connected, intermediary can also be passed through
It is indirectly connected, can be the connection inside two elements.For the ordinary skill in the art, it can be managed with concrete condition
Solve the concrete meaning of above-mentioned term in the present invention.
With reference to the accompanying drawing, it elaborates to some embodiments of the utility model.In the absence of conflict, under
The feature in embodiment stated can be combined with each other.
Embodiment
Incorporated by reference to referring to Figures 1 and 2, the utility model embodiment provides a kind of vacuum contact miniature circuit breaker 10, uses
In the automatic shutdown circuit when the failures such as heavy overload or short circuit occur, guarantee Electrical Safety.Its structure is simple, facilitates installation
And maintenance, and can complete to connect the work of electricity and power-off under vacuum conditions, and electric spark will not be generated, it is highly-safe, it is practical
Property is strong, and user experience is good.
Vacuum contact miniature circuit breaker 10 includes micro vacuum contact head mechanism 100, trip switch 200, complete machine shell
300, the first connecting terminal 400, the second connecting terminal 500, combined floodgate spanner 600 and tripping mechanism 700.Micro vacuum contact head machine
Structure 100, trip switch 200, the first connecting terminal 400, the second connecting terminal 500 and tripping mechanism 700 are mounted on complete machine shell
In body 300, to be covered and be protected under the action of complete machine shell 300.First connecting terminal 400 and the second connecting terminal
The 500 opposite both ends for being installed on complete machine shell 300, micro vacuum contact head mechanism 100 and trip switch 200 with the first wiring
Terminal 400 connects, and the first connecting terminal 400 is connect with extraneous power supply or electric appliance.One end of second connecting terminal 500 and tripping
Mechanism 700 connects, and the other end is connect with electric appliance or extraneous power supply.Trip switch 200 can push tripping in circuit overcurrent
Mechanism 700 no longer applies pressure to micro vacuum contact head mechanism 100, at this time micro vacuum so that tripping mechanism 700 rotates
Contact head mechanism 100 separates under the action of own resilient, and circuit disconnects, and in the process, tripping mechanism 700 pushes tripping to open
200 are closed, trip switch 200 is resetted, waits close a floodgate next time.Combined floodgate spanner 600 and tripping mechanism 700 link, and can be opposite
It is rotated in complete machine shell 300.The rotation of tripping mechanism 700 is able to drive the rotation of combined floodgate spanner 600, that is, trips, if desired again
Secondary connection circuit, user can turn round combined floodgate spanner 600 by external force, drive tripping mechanism 700 to turn round, by micro vacuum contact head
Mechanism 100 presses, and makes power on circuitry.
In the present embodiment, the first connecting terminal 400 is input terminal, and the first connecting terminal 400 passes through electric wire and external world's electricity
Source connection, the second connecting terminal 500 are output terminal, and the second connecting terminal 500 is connect by electric wire with electric appliance.
Incorporated by reference to referring to Fig. 3 and Fig. 4, micro vacuum contact head mechanism 100 includes shell 110, static contact 120, moving contact
130, bellows 140, elastic component 150 and pressing plate 160.Static contact 120, moving contact 130, bellows 140, elastic component 150 and pressure
Plate 160 is mounted in shell 110, to be covered and be protected under the action of shell 110.Static contact 120 is fixedly installed in
One end of shell 110, moving contact 130 are movably installed in the other end of shell 110, and can stretch out or be retracted shell 110, move
Contact 130 is selectively abutted with static contact 120.One end of bellows 140 is connect with shell 110, the other end and moving contact 130
Connection, moving contact 130, bellows 140 and the combination of shell 110 form vacuum cavity 170, and moving contact 130 is in vacuum cavity 170
It contacts or separates with static contact 120, prevent electric spark, avoid the formation of security risk.Pressing plate 160 is sheathed on moving contact
Outside 130, and it is fixedly connected with moving contact 130, one end and the pressing plate 160 of elastic component 150 support, and the other end is supported with shell 110,
Elastic component 150 is in compressive state always, to apply the elastic force for being directed away from 120 direction of static contact to pressing plate 160, to drive
Moving contact 130 is moved to the direction far from static contact 120, so that moving contact 130 is separated with static contact 120.
It should be noted that tripping mechanism 700 applies pressure to moving contact 130 when circuital current is less than preset value,
The pressure overcomes the elastic force of elastic component 150, moving contact 130 is pressed into shell 110, and is abutted with static contact 120, at this time circuit
It is powered；When circuital current is more than preset value, trip switch 200 is rotated, and tripping mechanism 700 is driven to rotate, no longer to dynamic
Contact 130 applies pressure, and moving contact 130 stretches out shell 110 under the action of elastic component 150 at this time, and divides with static contact 120
From circuit disconnects.In the whole process, elastic force of the moving contact 130 close to one end of tripping mechanism 700 in elastic component 150 acts on
Under supported always with tripping mechanism 700, will not there is a situation where be detached from.
Shell 110 includes closure 111, interconnecting piece 112 and opening portion 113.Closure 111 passes through interconnecting piece 112 and opens
The integrated molding of portion 113 is put, to improve bonding strength.Static contact 120 is fixedly installed in closure 111,130 activity peace of moving contact
Loaded on opening portion 113, moving contact 130 can be slided relative to opening portion 113, and be abutted with static contact 120.Bellows 140
One end is fixedly installed in interconnecting piece 112, and other end fixing sleeve is set to outside moving contact 130, closure 111, interconnecting piece 112, wave
Line pipe 140 and the combination of moving contact 130 form vacuum cavity 170, and the abutting and separation of moving contact 130 and static contact 120 are true
It is carried out in cavity body 170, prevents electric spark.160 fixing sleeve of pressing plate is set to outside moving contact 130, and is set to interconnecting piece 112
Interior, one end and the pressing plate 160 of elastic component 150 support, and the other end is supported with interconnecting piece 112, and elastic component 150 can generate elastic band
Dynamic pressure plate 160 is supported with opening portion 113, so that moving contact 130 is separated with static contact 120.
It is worth noting that, interconnecting piece 112 is inwardly projecting to be provided with first step 114, elastic component 150 is sheathed on moving contact
Outside 130, one end and the first step 114 of elastic component 150 are supported, and the other end is supported with pressing plate 160, in the axial direction of shell 110
Elastic force is applied to pressing plate 160, pressing plate 160 is ejected towards one end far from static contact 120.In the present embodiment, elastic component 150 is tower
Shape spring has preferable stressed effect, it is not limited to this, elastic component 150 or elastic rubber, to elastic component
150 material and shape is not especially limited.
It is worth noting that, interconnecting piece 112 is inwardly projecting to be provided with second step 115, the width of second step 115 is greater than
The width of first step 114, second step 115 are set to side of the first step 114 far from opening portion 113, bellows 140
One end is fixedly connected with second step 115, and the other end is fixedly connected with moving contact 130, by interconnecting piece 112 and moving contact 130
Between gap it is completely enclosed, to form vacuum cavity 170.It should be noted that bellows 140 can be with moving contact
130 movement and expand or shrink, when moving contact 130 is abutted with static contact 120, bellows 140 shrink, vacuum cavity
170 volume is minimum, and when pressing plate 160 is supported with opening portion 113, moving contact 130 is separated with static contact 120, and bellows 140 expands
, the volume of vacuum cavity 170 is maximum.
Moving contact 130 includes integrally formed first end 131, the second end 132 and contact part 133.The second end 132
Cross-sectional area be greater than the cross-sectional area of first end 131, the second end 132 is provided with platform close to the side of first end 131
Terrace 134, bellows 140 are fixedly connected with step surface 134, to avoid gap is generated.160 fixing sleeve of pressing plate is set to first end
Outside 131, first end 131 is slideably positioned in opening portion 113.Contact part 133 is connected to the second end 132 far from first end
131 side, contact part 133 are selectively abutted with static contact 120.
In the present embodiment, shell 110 is cylindrical, and in a ring, opening portion 113 is provided with centre bore 116 for opening portion 113,
The first end 131 and centre bore 116 of moving contact 130 cooperate, and can slide relative to centre bore 116.It is not limited to
This, shell 110 can also in a rectangular parallelepiped shape be not especially limited the shape of shell 110.
In the present embodiment, closure 111 offers threaded hole 117 far from the side of opening portion 113, and threaded hole 117 is used for
It with screw fit, is easily installed and dismantles, screw is connect with the first connecting terminal 400, so that 120 electricity of extraneous power supply and static contact
Connection.When circuital current is less than preset value, extraneous power supply passes through the first connecting terminal 400, closure 111, static contact
120, moving contact 130, tripping mechanism 700 and the second connecting terminal 500 are connect with electric appliance.
In the present embodiment, interconnecting piece 112 is made of ceramic materials, and closure 111 and opening portion 113 are by conductive material system
At it is not limited to this, interconnecting piece 112 can also be made of other electrically non-conductive materials, not to the making material of interconnecting piece 112
Make specific limit.
Micro vacuum contact head provided by the embodiment of the utility model mechanism 100, static contact 120 is fixedly installed in closure
In 111, moving contact 130 is movably installed in opening portion 113, and moving contact 130 can be slided relative to opening portion 113, and and stationary contact
First 120 abut, and one end of bellows 140 is fixedly installed in interconnecting piece 112, and other end fixing sleeve is set to outside moving contact 130, envelope
Closing part 111, interconnecting piece 112, bellows 140 and the combination of moving contact 130 form vacuum cavity 170, and 160 fixing sleeve of pressing plate is set to dynamic
It outside contact 130, and is set in interconnecting piece 112, one end and the pressing plate 160 of elastic component 150 support, the other end and interconnecting piece 112
It supports, elastic component 150 can generate elastic band dynamic pressure plate 160 and support with opening portion 113, so that moving contact 130 and static contact 120
Separation.Compared with prior art, micro vacuum contact head provided by the utility model mechanism 100 is formed very due to using combination
Moving contact 130, bellows 140 and the shell 110 of cavity body 170 and the elastic component 150 supported with pressing plate 160, so can
The work for connecing electricity and powering off is completed under vacuum conditions, will not generate electric spark, it is highly-safe, and facilitate installation and maintenance,
It is practical, so that 10 safety and stability of vacuum contact miniature circuit breaker, user experience are good.
The above is only the preferred embodiments of the utility model, are not intended to limit the utility model, for this field
Technical staff for, various modifications and changes may be made to the present invention.Within the spirit and principle of the utility model,
Any modification, equivalent replacement, improvement and so on should be included within the scope of protection of this utility model.
Claims (10)
1. a kind of micro vacuum contact head mechanism, which is characterized in that including shell, static contact, moving contact, bellows, elastic component
And pressing plate, the shell include closure, interconnecting piece and opening portion, the closure passes through the interconnecting piece and the opening portion
It is integrally formed, the static contact is fixedly installed in the closure, and the moving contact is movably installed in the opening portion, described
Moving contact can be slided relative to the opening portion, and be abutted with the static contact, and one end of the bellows is fixedly installed in
In the interconnecting piece, other end fixing sleeve be set to the moving contact outside, the closure, the interconnecting piece, the bellows and
The moving contact combines to form vacuum cavity, and the pressing plate fixing sleeve is set to outside the moving contact, and is set to the interconnecting piece
Interior, one end of the elastic component is supported with the pressing plate, and the other end is supported with the interconnecting piece, and the elastic component can generate bullet
Power drives the pressing plate to support with the opening portion, so that the moving contact is separated with the static contact.
2. micro vacuum contact head according to claim 1 mechanism, which is characterized in that the inwardly projecting setting of interconnecting piece
There is first step, the elastic component is sheathed on outside the moving contact, and the elastic component is supported with the first step.
3. micro vacuum contact head according to claim 2 mechanism, which is characterized in that the elastic component is tower-shaped spring.
4. micro vacuum contact head according to claim 2 mechanism, which is characterized in that the inwardly projecting setting of interconnecting piece
There is a second step, the width of the second step is greater than the width of the first step, and the second step is set to described the
Side of one step far from the opening portion, the bellows are fixedly connected with the second step.
5. micro vacuum contact head according to claim 1 mechanism, which is characterized in that the moving contact includes being integrally formed
First end and the second end, the cross-sectional area of the second end is greater than the cross-sectional area of the first end, described the
Two ends are provided with step surface close to the side of the first end, and the bellows is fixedly connected with the step surface, described
Pressing plate fixing sleeve is set to outside the first end, and the first end is slideably positioned in the opening portion.
6. micro vacuum contact head according to claim 5 mechanism, which is characterized in that the moving contact further includes contact
Portion, the contact part are connected to side of the second end far from the first end, the contact part selectively with institute
State static contact abutting.
7. micro vacuum contact head according to claim 1 mechanism, which is characterized in that the shell is cylindrical, described
In a ring, the opening portion is provided with centre bore for opening portion, and the moving contact and the centre bore cooperate, and can be relative to institute
State centre bore sliding.
8. micro vacuum contact head according to claim 1 mechanism, which is characterized in that the closure is far from the opening
The side in portion offers threaded hole, and the threaded hole is used for and screw fit, and the screw is used for and extraneous power supply or electric appliance
Connection.
9. micro vacuum contact head according to claim 1 mechanism, which is characterized in that the interconnecting piece is by ceramic material system
At the closure and the opening portion are made of electrically conductive material.
10. a kind of vacuum contact miniature circuit breaker, which is characterized in that including as described in any one of claim 1 to 9 miniature true
Empty contact head mechanism.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821342844.4U CN208489149U (en) | 2018-08-20 | 2018-08-20 | A kind of micro vacuum contact head mechanism and vacuum contact miniature circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821342844.4U CN208489149U (en) | 2018-08-20 | 2018-08-20 | A kind of micro vacuum contact head mechanism and vacuum contact miniature circuit breaker |
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| Publication Number | Publication Date |
|---|---|
| CN208489149U true CN208489149U (en) | 2019-02-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821342844.4U Active CN208489149U (en) | 2018-08-20 | 2018-08-20 | A kind of micro vacuum contact head mechanism and vacuum contact miniature circuit breaker |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109036944A (en) * | 2018-08-20 | 2018-12-18 | 厦门大恒科技有限公司 | A kind of micro vacuum contact head mechanism and vacuum contact miniature circuit breaker |
-
2018
- 2018-08-20 CN CN201821342844.4U patent/CN208489149U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109036944A (en) * | 2018-08-20 | 2018-12-18 | 厦门大恒科技有限公司 | A kind of micro vacuum contact head mechanism and vacuum contact miniature circuit breaker |
| CN109036944B (en) * | 2018-08-20 | 2024-04-02 | 厦门大恒科技有限公司 | Miniature vacuum contact head mechanism and vacuum contact miniature circuit breaker |
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