Utility model content
In traditional solution, the structure of contact terminal globality using common pressure spring structure is poor, and electric property can not
It leans on and operating force is big.If excessive be also open of short circuit current and risk that moment disconnects in making process.This is tight
Important place affects the reliability and safety of mesohigh equipment.In addition, for some high-voltage switch components, especially open air makes
High-voltage switch component, static contact and moving contact have not been used to the shield of rain and snow.Is there is sleet etc. extremely in this
When weather, static contact and moving contact are easy icing or water, to cause security risk.
In order to solve the problems, such as or at least partly solve that above-mentioned and other are potential, embodiment of the disclosure provides one
Kind is used for the contact unit and corresponding high-voltage switch component of high-voltage switch component, to be embodied as mesohigh component peace
Complete reliable electrical connection or grounding connection.
In the disclosure in a first aspect, providing a kind of contact unit for high-voltage switch component.The contact unit
It include: static contact component, including static contact;And moving contact component, it is arranged on the lever arm of switch block with lever arm
Movement and moved between on-position and open position, and including moving contact, moving contact includes circumferentially more
A elastic conducting strip, multiple elastic conducting strips are integrally formed structures, wherein when moving contact component is in on-position, it is quiet
Contact is suitable for being coaxially inserted into moving contact to contact with multiple elastic conducting strips, to connect switch block, and wherein
When moving contact component is in open position, static contact is separated with moving contact.
Contact unit according to an embodiment of the present disclosure, moving contact include multiple elastic conducting strips circumferentially, are made
It obtains during static contact is inserted into moving contact, can be contacted with the inner surface of multiple elastic conducting strips, to ensure that dynamic
The reliability contacted between contact and static contact.In addition, be recessed contact according to the moving contact of the embodiment of the present disclosure, and static contact is
Convex contact, this design can further increase the dynamic of switch block, thermal stability.In addition, according to the embodiment of the present disclosure
Multiple elastic conducting strips are integrally formed structures, and this aspect makes the structure of moving contact more firm, are on the other hand made
Assembly is easier, reduces assembly cost.
In some embodiments, the internal diameter of moving contact is less than the outer diameter of static contact, and in static contact adjacent to moving contact
Free end is formed with chamfering and is suitable for being inserted into moving contact.By the arrangement, static contact is inserted more easily into
In moving contact, and the internal diameter of moving contact can make to keep being in close contact between contact less than the outer diameter of static contact.
In some embodiments, moving contact component further include: annular groove is formed in multiple elastic conductings along the circumferential direction of moving contact
The outer surface of electric piece;And the ring elastic parts in annular groove are arranged in, for generating elasticity when static contact is inserted into moving contact
Power is to prevent elastic conducting strip excessive deformation.By this method, ring elastic parts can be further when static contact is inserted into moving contact
Elastic force is generated to further ensure that the connection reliability between static contact and moving contact.
In some embodiments, moving contact component further include: annular protrusion is formed in multiple elasticity along the circumferential direction of moving contact
The inner surface of conductive sheet, and contacted with static contact.By this method, annular protrusion can be after static contact is inserted into moving contact and dynamic
Contact, so as to avoid because phenomena such as poor contact, further ensuring electrical connection caused by the factors such as mismachining tolerance
Reliability.
In some embodiments, static contact component further includes the fixed contact pedestal with rain and snow function, at least partly
Receive static contact in ground.In this manner it is possible to being effectively prevented from sleet etc. corrodes static contact, guarantee the contact performance of static contact not by
It influences.
In some embodiments, static contact component further includes the stopper section axially protruded from the open end of fixed contact pedestal,
The moving contact component moved for backstop with lever arm.In this manner it is possible to the mistake for preventing moving contact component from moving with lever arm
Due to beat caused by the factors such as inertia in journey, guarantee that moving contact component can move to position appropriate so that static contact is inserted
Enter.
In some embodiments, fixed contact pedestal is cylindrical, and static contact component further includes from stopper section along fixed contact pedestal
Tangential direction extend pairs of guide part, for guiding moving contact component to move with lever arm.By this arrangement, even if
Under the mal-conditions such as strong wind, moving contact component can also be moved in fixed contact pedestal.
In some embodiments, static contact component further includes bolster, is arranged in the neighbouring stationary contact of guide part and stopper section
The side of head is deformed when moving contact component and fixed contact pedestal contact to provide buffering.By the setting, dynamic touching is avoided
The head assembly rigid collision between fixed contact pedestal during the motion avoids noise and due to fastening caused by collision
Part loosening etc..
In some embodiments, static contact is hollow, and static contact component further includes being coaxially disposed in static contact
Mounting rod in seat, static contact are set on mounting rod.In this manner it is possible to further save cost and guarantee static contact component
Connection reliability.
In some embodiments, it is formed with mounting hole on fixed contact pedestal, is passed through for fastener so that static contact to be assembled to
In fixed contact pedestal.In this manner it is possible to reduce the assembly difficulty of static contact component, assembly efficiency is improved.
In some embodiments, moving contact further includes the coupling part being integrally formed with multiple elastic conducting strips, wherein dynamic touching
Head is coupled to lever arm via coupling part.By this arrangement, static contact is more easily assembled, improves assembly
Efficiency reduces assembly cost.
In some embodiments, moving contact component further includes the guide cylinder with rain and snow function, is arranged in lever arm
End is to be at least partially accommodated moving contact.On the one hand guide cylinder can be provided with the movement of lever arm for moving contact component and be led
To on the other hand, guide cylinder can also prevent sleet etc. from corroding moving contact, guarantee the reliability of moving contact.
The second aspect of the disclosure provides a kind of high-voltage switch equipment including above-mentioned contact unit.Using according to this
Disclosed contact unit can reduce cost and keep high-voltage switch equipment relatively reliable.
By the way that the explanation of exemplary embodiment, the further feature of the disclosure will become aobvious and easy referring to the drawings
See.It should be appreciated that utility model content part is not intended to the key or important feature of mark embodiment of the disclosure, also non-purport
For limiting the scope of the present disclosure.The other feature of the disclosure will be easy to understand by description below.
Specific embodiment
The disclosure is described referring now to several example embodiments.It should be appreciated that these embodiments are only for making ability
Field technique personnel better understood when and be achieved in the disclosure, rather than propose to the range of disclosed technique scheme any
The purpose of limitation describes.
As it is used herein, term " includes " and its variant will be read as meaning " including but not limited to " open
Term.Term "based" will be read as " at least based on part ".Term " one embodiment " and " embodiment " should be understood
" at least one embodiment ".Term " another embodiment " is interpreted as " at least one other embodiment ".Term " first ", " the
Two " etc. may refer to similar and different object.Other specific and implicit definition may be included below.Unless context
In addition it explicitly points out, otherwise the definition of term is consistent throughout the specification.
The static contact and moving contact of the contact unit of traditional high-voltage switch component generally use pressure spring structure.Static contact
Usually recessed contact, and moving contact is usually the convex contact being adapted for insertion into recessed contact.Connecing between static contact and moving contact
Touch typically just has common compressed spring to generate.Under certain conditions, for example, Contact Short-Circuit High Current, having can
The contact that can be will lead between dynamic/static contact is open.This has severely impacted moving contact and static contact or even entire switch block
Connection reliability and safety.
In addition, for the contact unit of outdoor setting, in moving contact and the general exposed environment outdoors of static contact, be easy by
To the boisterous erosion such as sleet strong wind, the connection reliability of contact unit is affected.Although the contact unit having at present has
Additional rail structure is convenient to carry out deicing, but deicing effect is poor, cannot fully meet the requirement of security and reliability.
Embodiment of the disclosure provides a kind of contact unit for high-voltage switch component, to solve or at least portion
Point ground solves the problems, such as the above-mentioned of conventional contact unit and other are potential.Some examples are described referring now to Fig. 1 to Fig. 6
Embodiment.
It generally, include static contact component 101 and moving contact component 102 according to the contact unit of the embodiment of the present disclosure 100.
Fig. 1 shows the static contact component 101 of switch block according to an embodiment of the present disclosure and moving contact component 102 is in and disconnects position
The front view set;Fig. 2 shows the front views that static contact component 101 and moving contact component 102 are in on-position.As schemed
Show, static contact component 101 includes static contact 1011.As can be seen that static contact 1011 is convex contact, it is adapted for insertion into moving contact group
In the moving contact 1021 of part 102.
Moving contact component 102 is arranged into the end of the lever arm 201 of high-voltage switch component by mode appropriate, with
It is moved between at least two positions with lever arm 201.For the ease of discussing, which is referred to as on-position
And open position.During moving contact component 102 moves to on-position from open position, lever arm 201 can rotate
Or it translates and moves moving contact component 102 towards static contact component 101.By this method, it is in and connects in moving contact component 102
When logical position, static contact 1011 is inserted into moving contact 1021.
It include edge according to the moving contact 1021 of the contact unit 100 of the embodiment of the present disclosure different from traditional contact unit
Multiple elastic conducting strips 1022 circumferentially, plurality of elastic conducting strip 1022 have integrally formed structure, such as Fig. 2 and
Shown in Fig. 3.In contrast, each elastic conducting strip in traditional contact unit with elastic conducting strip is single portion
Part, and be fastened in lever arm or fixed contact pedestal by fastener respectively.Compared to traditional contact unit, according to this public affairs
The integrally formed multiple elastic conducting strips 1022 for opening embodiment, on the one hand make elastic conducting strip 1022 be not easy loosen or
Deformation, improves the contact performance of moving contact 1021 and static contact 1011.On the other hand, integrally formed multiple elastic conducting strips
1022 simplify the assembling process of moving contact 1021 significantly, so that only needing once-through operation can be by moving contact 1021 securely
It fastens on lever arm 201, this can reduce assembly cost in turn.
In addition, multiple elastic conducting strips 1022 are surrounded by similar to plum blossom shape.Dynamic touching is inserted into static contact 1011
In the case where first 1021, static contact 1011 can be contacted with these elastic conducting strips 1022, as shown in Figure 2.It ensure that stationary contact
First 1011 can be kept in contact under any circumstance with the elastic conducting strip 1022 of moving contact 1021, to ensure that contact list
The connection reliability of member 100.For example, even if elastic conducting strip 1022 can be tightly when strong wind or high current
Ground surrounds and contacts static contact 1011.
It is also differ in that according to the contact unit 100 of the embodiment of the present disclosure with conventional contact unit, moving contact 1021
It is recessed contact and static contact 1011 is convex contact.This can effectively ensure that the dynamic of contact unit, thermal stability.Wherein dynamic stability
It is the ability that can circuit and element bear maximum electrodynamic pow er when short circuit, thermostabilization, which refers to, measures circuit and element for example short-circuit
In the very short time that electric current occurs, the ability of huge heat when short circuit can be born.
In order to further increase thermal stability, moving contact 1021 and static contact 1011 are generally made of copper, because copper has
Preferable current capacity.It should be understood, however, that this is exemplary, it is no intended to limit the scope of the present disclosure.
Contact 1021 and static contact 1011 can be made of any other material that can be conductive appropriate, such as aluminium or silver etc..
In some embodiments, the internal diameter of moving contact 1021 is less than the outer diameter of static contact 1011 and in 1011 neighbour of static contact
The free end 1019 of nearly moving contact 1021 is formed with circular arc chamfering or ramp down angle.The presence of chamfering can be at free end 1019
It forms size reduction and is inserted into moving contact 1021 along the chamfering to be conducive to static contact 1011 as shown in Figure 2 and Figure 4
In.The larger outer diameter of static contact 1011 after being inserted into moving contact 1021 can be that elastic conducting strip 1022 is deformed.Elasticity
Power caused by deforming can surround static contact 1011 tightly to ensure that between static contact 1011 and elastic conducting strip 1022
Connection reliability.
However, it is to be understood that for the ease of being inserted into and guaranteeing the electrical connection between contact, it is above-mentioned using different straight
The internal-and external diameter of diameter and the mode of chamfering are only exemplary, it is no intended to limit the protection scope of the disclosure.It is any other suitable
When structure or arrangement be all possible.For example, static contact 1011 can be formed as boring in some alternative embodiments
Shape, the outer diameter of the miner diameter end of taper static contact can be less than the internal diameter of moving contact 1021, and the outer diameter of bigger diameter end can be greater than dynamic touching
First 1021 internal diameter.By this method, guarantee the electrical connection between contact.
In order to further ensure static contact 1011 and moving contact 1021 can have preferable connection can under any circumstance
By property, in some embodiments, along moving contact 1021 circumferential direction, multiple elastic conducting strips 1022 close to moving contact 1021 from
By being formed with annular groove 1023 on the outer surface held.The annular groove 1023 can be used to accommodate ring elastic parts 1024, annular elastomeric
Property part 1024 can be closely around multiple elastic conducting strips 1022.During static contact 1011 is inserted into moving contact 1021,
Static contact 1011 makes elastic conducting strip 1022 generate expanding deformation.The expanding deformation can make the expansion of ring elastic parts 1024 to produce
Raw elastic force.The elastic force is deformed ring elastic parts 1024 further, and ensure that static contact 1011 and elasticity
Contact force between conductive sheet 1022.
In addition, enabling switch block to be suitable for various performance requirements different by using ring elastic parts 1024
Occasion, to improve the applicability of switch block.That is, user can also select different-stiffness according to the needs of application
Ring elastic parts 1024.For example, selecting rigidity higher in the case where the electric current or relatively high voltage on switch block
Ring elastic parts 1024.Wherein the rigidity of ring elastic parts refers to the ratio between load increment and incremental deformation, i.e. generation unit becomes
Load needed for shape.The rigidity of selected ring elastic parts 1024 is higher, and provided contact force is higher, so that static contact
1011 and elastic conducting strip 1022 can more closely contact, thus switch block can be suitably used for switching current or voltage is higher
Occasion.In the case where the electric current or relatively small voltage on switch block, user can choose the lower annular elastomeric of rigidity
Property part 1024 does not select ring elastic parts 1024, to further reduce the cost.
It can keep close under any circumstance by this arrangement, between static contact 1011 and elastic conducting strip 1022
Contact, improve the reliability of contact unit 100 or even entire switch block.Ring elastic parts 1024 can be annular elastomeric
Spring.But it is only exemplary, ring elastic parts 1024 can use any other component appropriate, such as O-ring etc..It should manage
Solution, the embodiment of this set ring elastic parts 1024 are only exemplary, it is no intended to limit the protection model of the disclosure
It encloses.Any other structure appropriate or arrangement are also possible.For example, can also pass through in some alternative embodiments
Elastic conducting strip 1022 is thickeied to improve the connection reliability of static contact 1011 and elastic conducting strip 1022.Elastic conducting strip 1022
It can be coupled on lever arm 201 by mode appropriate.For example, in some embodiments, elastic conducting strip 1022 can lead to
The inside crossed the coupling part 1027 being integrally formed and be coupled to lever arm 201.In order to ensure bonding strength, in coupling part 1027
Connector can be set in order to which coupling part 1027 to be fixed on to the inside of lever arm 201, as depicted in figs. 1 and 2 in portion.One
In a little embodiments, the upward predetermined length of cutting axis can be carried out to tubular element in multiple positions circumferentially and form elastic conducting
Electric piece 1022, uncut part form coupling part 1027.In some alternative embodiments, elastic conducting strip 1022 and coupling
Portion 1027 can be integrally formed by way of molding etc..
In some embodiments, elastic conducting strip 1022 and coupling part 1027 can also use split type construction, i.e., integrally
Molding multiple elastic conducting strips 1022 are connected on coupling part 1027 by fastening means appropriate.By elastic conducting strip 1022
Being at least partially disposed on the inside of lever arm 201 can prevent sleet from invading elastic conducting strip 1022 to a certain extent.Elasticity
Conductive sheet 1022 can stretch out preset distance from lever arm 201.
In the outside of lever arm 201, guide cylinder 1026 can be set, as shown in Figure 3.Guide cylinder 1026 has rain and snow
Function can at least partly receive the elastic conducting strip 1022 stretched out from lever arm 201.Guide cylinder 1026 being capable of anti-stop touching
First 1021 invasion by sleet.For example, in some embodiments, when moving contact component 102 is in open position, lever arm
201 and moving contact component 102 be in horizontality, as shown in Figure 3.It can be seen from the figure that moving contact 1021 is located at guide cylinder
Among 1206, so as to avoid the invasion of sleet etc..In addition, guide cylinder 1026 can have chamfering in opening, this side
Face can provide guiding during being inserted into moving contact 1021 for static contact 1011.On the other hand, which can to move
Contact 1021 is located at relative to opening more leans on inner position, further improves rain and snow performance.
In some embodiments, guide cylinder 1026 can be made of the material of the elasticity of rubber or silica gel etc.,
Buffering can be provided when guide cylinder 1026 contacts static contact component 101.Certainly, this is exemplary, it is no intended to limit
The protection scope of the disclosure processed.Guide cylinder 1026 can also be made of plastic or other material.
In some embodiments, as shown in Figure 1, along the circumferential direction of moving contact 1021, in multiple elastic conducting strips 1022
Annular protrusion 1025 is formed on surface.Each section of annular protrusion 1025 is formed on each elastic conducting strip 1022.When quiet
After contact 1011 is inserted into moving contact 1021, static contact 1011 can be kept in contact with annular protrusion 1025.It ensure that i.e.
In the case where making that elastic conducting strip 1022 is deformed in due to mismachining tolerance or use process, static contact 1011 can
It is kept in contact with the annular protrusion 1025 of elastic conducting strip 1022 in essentially identical position, which ensure that with moving contact 1021
Variation of the insertion without causing the contact force between moving contact 1021 and static contact 1011, further improve switch block
Electrical connection stability.
In some embodiments, annular protrusion 1025 can be aligned radially with the annular groove 1023 of outside setting.?
In these embodiments, annular protrusion 1025 and annular groove 1023 can be formed and carrying out punching press to elastic conducting strip 1022.
That is, being formed simultaneously annular protrusion 1025 and annular and forming bending part in the appropriate location of elastic conducting strip 1022
Slot 1023.Certain this generation type is only exemplary, it is no intended to limit the protection scope of the disclosure.It is any other appropriate
Mode be also possible.For example, in some embodiments, annular protrusion 1025 can by way of being locally thicker ring
Shape slot 1023 can form different position in the radial direction by the thinning mode in part.In some embodiments, convex annular
Playing 1025 can circumferentially be arranged by the salient point being formed on each elastic conducting strip 1022 and be formed.
The invasion of sleet etc. in order to prevent, in some embodiments, static contact 1011 can be at least partly received in
In fixed contact pedestal 1012 with rain and snow function, as shown in Figure 4.In some embodiments, fixed contact pedestal 1012 is static contact
1011 provide the structural support, and static contact 1011 is vertically mounted in switch block.In this state, static contact
Seat 1012 is opening down.Therefore, on the one hand, fixed contact pedestal 1012 can surround static contact 1011 wherein, be static contact
1011 provide the function of rain and snow.On the other hand, vertical state is moved to from horizontality with lever arm 201 in moving contact 1021
And in the case where being finally reached on-position, which can also be surrounded moving contact 1021 wherein, such as Fig. 2 institute
Show, while providing the function of rain and snow for the static contact 1011 and moving contact 1021 of on-state.
In some embodiments, fixed contact pedestal 1012 can be cylindrical.But this is exemplary, and fixed contact pedestal 1012 can
To use any other structure appropriate or shape.In some embodiments, static contact 1011 can be hollow, and
The mounting rod 1017 for being arranged static contact 1011 is coaxially arranged in fixed contact pedestal 1012, as shown in Figures 4 to 6.With this
Mode can effectively guarantee the bonding strength between static contact 1011 and fixed contact pedestal 1012.In addition, using hollow static contact
1011 can also further decrease material cost.
It is installed on mounting rod 1017 for the ease of static contact 1011, in some embodiments, on fixed contact pedestal 1012
Mounting hole 1018 can be set.Mounting hole 1018 can be passed through for the fastener 1010 of bolt etc. by static contact 1011
It is installed to fixed contact pedestal 1012, i.e., on mounting rod 1017.
Certainly, above-mentioned to be only exemplary about the embodiment of static contact 1011 and mounting rod 1017, it is no intended to limit
The protection scope of the disclosure.Any other structure appropriate or arrangement are also possible.For example, in some embodiments, it is quiet
Contact 1011 is also possible to solid, and is mounted in fixed contact pedestal 1012 by mode appropriate.In the implementation of some substitutions
In example, static contact 1011 and fixed contact pedestal 1012 can be integrally formed.
In some cases, moving contact component 102 can be with activity during moving from open position to on-position
Arm 201 rotates by a certain angle.Moving contact component 102 is inclined due to the factors such as inertia hyperkinesia in this case in order to prevent
Aligned position from static contact 1011 and moving contact 1021, in some embodiments, the open end of fixed contact pedestal 1012 can be set
It is equipped with axially projecting stopper section 1014.
Stopper section 1014 can follow the arcuate shape of open end and protrude from open end with flushing.Stopper section 1014 is along week
To extension can less than half circular arc.In some embodiments, in stopper section 1014 along the tangential direction of fixed contact pedestal 1012
The pairs of guide part 1015 extended, as shown in Figure 4, Figure 5 and Figure 6.Guide part 1015 from close to stopper section 1014 position to
Position far from stopper section 1014 is gradually expanded, to form open portion.The guide part 1015 can be transported in moving contact component 102
Prevent moving contact component 102 due to beat caused by the factors such as strong wind during moving on-position.Which ensure that dynamic touching
Head assembly 102 can move to position appropriate in order to the insertion of static contact 1011.
In some embodiments, in the inside of guide part 1105 and stopper section 1014, namely adjacent to the one of static contact 1011
Bolster 1016 is provided on side.Bolster 1016 can come in deformation when moving contact component 102 and fixed contact pedestal 1012 contact
Buffering is provided.Rigidity when bolster 1016 is thus, it is possible to be effectively prevented from moving contact component 102 and the contact of fixed contact pedestal 1012
Collision can also be prevented while reducing noise since fastener loosens caused by hitting vibration.Bolster 1016 can be with
It is made of material appropriate, such as the rubber with certain elasticity or silica gel etc..In some embodiments, bolster 1016
It can be spring or elastic slice etc..
From the above, it is seen that the moving contact 1021 of contact unit 100 according to an embodiment of the present disclosure is due to adopting
With the recessed contact of plum blossom shape, can guarantee to be reliably connected with static contact 1011 under any circumstance.And in static contact
1011 and moving contact 1021 outside cover can be set to prevent static contact 1011 and moving contact 1021 by sleet or strong wind
Invasion, further ensure the reliability of connection.Pass through setting guide part 1015, stopper section 1014 and bolster thereon
1016, it is ensured that the reliability of moving contact component 102 and static contact component 101 during the connection process.In addition, according to the disclosure
The contact unit 100 of embodiment assembles simply, and material and assembly cost can be effectively reduced, to improve the sexual valence of product
Than.
It should be understood that the embodiment in detail above of the disclosure is just for the sake of illustration or the original of the explanation disclosure
Reason, rather than limit the disclosure.Therefore, within the spirit and principle of the utility model, it is made it is any modification, equally replace
Generation, improvement etc., should be included within the scope of protection of this utility model.Meanwhile disclosure the attached claims are intended to cover
Lid falls into all changes and modification in the equivalent on the scope of the claims and boundary or range and boundary.