CN110491749A - A kind of external drive type quick opening and closing mechanism - Google Patents
A kind of external drive type quick opening and closing mechanism Download PDFInfo
- Publication number
- CN110491749A CN110491749A CN201910903009.6A CN201910903009A CN110491749A CN 110491749 A CN110491749 A CN 110491749A CN 201910903009 A CN201910903009 A CN 201910903009A CN 110491749 A CN110491749 A CN 110491749A
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- piston
- accommodating cavity
- closing mechanism
- drive type
- external drive
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- 238000005452 bending Methods 0.000 claims abstract description 9
- 210000003205 muscle Anatomy 0.000 claims description 11
- 230000003014 reinforcing effect Effects 0.000 claims description 7
- 238000007373 indentation Methods 0.000 abstract description 3
- 230000033001 locomotion Effects 0.000 description 4
- 206010037660 Pyrexia Diseases 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000012943 hotmelt Substances 0.000 description 2
- 238000010008 shearing Methods 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 1
- 206010044565 Tremor Diseases 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000009194 climbing Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 229910052744 lithium Inorganic materials 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H39/00—Switching devices actuated by an explosion produced within the device and initiated by an electric current
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H85/00—Protective devices in which the current flows through a part of fusible material and this current is interrupted by displacement of the fusible material when this current becomes excessive
- H01H85/0013—Means for preventing damage, e.g. by ambient influences to the fuse
- H01H85/0017—Means for preventing damage, e.g. by ambient influences to the fuse due to vibration or other mechanical forces, e.g. centrifugal forces
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H85/00—Protective devices in which the current flows through a part of fusible material and this current is interrupted by displacement of the fusible material when this current becomes excessive
- H01H85/02—Details
- H01H85/04—Fuses, i.e. expendable parts of the protective device, e.g. cartridges
- H01H85/041—Fuses, i.e. expendable parts of the protective device, e.g. cartridges characterised by the type
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H85/00—Protective devices in which the current flows through a part of fusible material and this current is interrupted by displacement of the fusible material when this current becomes excessive
- H01H85/02—Details
- H01H85/04—Fuses, i.e. expendable parts of the protective device, e.g. cartridges
- H01H85/05—Component parts thereof
- H01H85/165—Casings
- H01H85/175—Casings characterised by the casing shape or form
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H85/00—Protective devices in which the current flows through a part of fusible material and this current is interrupted by displacement of the fusible material when this current becomes excessive
- H01H85/02—Details
- H01H85/47—Means for cooling
Abstract
A kind of external drive type quick opening and closing mechanism, including upper-lower casing and the conductive plate being arranged between upper-lower casing；It is disposed with electronic ignition device and piston from top to bottom in the accommodating cavity of the upper housing, offers accommodating cavity in the lower case below the piston and the conductive plate；It is characterized in that the conductive plate is recessed into the lower case accommodating cavity, and flat recess is formed in the accommodating cavity；It is spaced apart at the flat place of the recess and is equipped with fracture recess and bending recess, the lower end of the piston is located at the top of the fracture recess；Accommodating cavity in upper-lower casing, which meets the piston, to be moved in lower case from the upper housing.Conductive plate of the invention is broken in fracture indent and the side wall using bending indentation, there as shaft downward along cushion block is fallen, to disconnect main circuit.Impact energy is absorbed by the endergonic structure of piston and cushion block setting.
Description
Technical field
The present invention relates to Electric control and electric car field, refer in particular to control cutting electric current transmission by external signal
The device of circuit.
Background technique
The product of circuit over-current protection is based on the fuse for the heat fusing for flowing through the generation of fuse electric current, and there are masters
The problem of wanting is hot melt fuse and load matched relationship.Such as in new energy car owner's loop protection situation, if load occurs
The case where low power number overload or situation of short circuit, the fuse of selection low current specification is not able to satisfy electric current short time overshoot, such as
Fruit selects the fuse of high current specification not to be able to satisfy the requirement quickly protected.The lithium electricity of energy is provided in current new energy vehicle
Chi Bao exports several times that electric current is about rated current in a short-circuit situation, and fuse guard time cannot be met the requirements, and be caused
Battery pack fever catching fire.Since tolerance current heating and breaking current are exothermic melting, the electric current for flowing through fuse is all originated from,
The protection device of such fever fusing using electric current can not be with larger rated current or the stronger short-time overload/punching of tolerance
It hits under conditions of electric current (such as high current in short-term when electric car starting or climbing), it is enough to reach certain amplitude fault current
Fast breaking speed, or under the sufficiently fast protection velocity conditions of certain amplitude fault current, realize higher nominal electric current, or
Biggish overload/dash current is resistant to without damaging.
Another hot melt fuse the problem is that cannot and peripheral device communication, cannot be by its in addition to electric current
The triggering of its signal, such as vehicle ECU, BMS or other sensors etc..If there is severe crash, soaked or be exposed to the sun in vehicle
Situations such as battery temperature is excessively high afterwards cannot cut off circuit in time, it is likely that lead to the serious of the final damage vehicle of battery pack burning
Event occurs.
Currently, have existed a kind of cutting hatch frame of quick disjunction in the market, mainly include gas generating unit,
Conductive plate and conductive plate fall after accommodating cavity, gas generating unit generate high pressure gas band piston thrust conductive plate, be broken
Conductive plate is fallen in accommodating cavity downwards afterwards, realizes the purpose that circuit quickly disconnects.But there is also have some shortcomings and lack
Fall into: overall dimensions are larger, are unable to satisfy the application environment more demanding to size；Overall weight is heavier, is unable to satisfy to weight
Demanding application environment；Internal resistance is larger, when normal work invalid thermal power be lost it is high；Movement is slower, fastp-acting fuse
Actuation time, fuse was slower at a slow speed in 10-50ms；Resistance to rush of current is poor, very narrow at melt narrow road, can not be subjected to growing
When, multiple heavy current impact, be easy fused by dash current；Can not be disconnected under low current, it is necessary to reach rated current 3 again with
It is upper to act；Calorific value is big when normal work, and temperature arrives, and forms heat source, needs to radiate.
Summary of the invention
Technical problem to be solved by the invention is to provide a kind of quick cutting devices, by receiving external signal, benefit
With chemical energy, mechanically cutting connect conductor with main circuit in the shortest time, disconnects main circuit, plays protection junior
The purpose of each equipment and instrument.
In order to solve the above technical problems, technical solution provided by the invention is a kind of external drive type quick opening and closing mechanism,
Including upper-lower casing and the conductive plate being arranged between upper-lower casing；It is set gradually from top to bottom in the accommodating cavity of the upper housing
There are electronic ignition device and piston, offers accommodating cavity in the lower case below the piston and the conductive plate；Its feature
It is recessed into the lower case accommodating cavity to be the conductive plate, and forms flat recess in the accommodating cavity；Described
The flat place of recess, which is spaced apart, is equipped with fracture recess and bending recess, and the lower end of the piston is located at the upper of the fracture recess
Side；Accommodating cavity in upper-lower casing, which meets the piston, to be moved in lower case from the upper housing.
The piston includes piston only and the knife-like structure below the piston only, and the knife-like structure is located at
The surface of the fracture recess.
Several salient points are provided with below the piston only；Several are arranged at intervals on the two sides of the knife-like structure
Reinforcing rib.
It is inclined-plane below the knife-like structure.
The periphery of the prominent piston only in the vertical side of the two of the knife-like structure, it is right before and after two side ends lower part
Position is answered, spacing block set is respectively arranged with.
In the accommodating cavity for accommodating the piston, corresponding knife-like structure two sides end position is offered described in extending to
Vertical groove at upper housing lower end surface；Corresponded in the groove offered at the position of the spacing block set limit it is recessed
Mouthful；The two side ends of the knife-like structure are respectively contained in the groove, and the spacing block set is located in the limit notch；In
It is corresponding to offer the perpendicular of the accommodating piston two side ends at the groove location for corresponding to the upper housing on the lower case accommodating cavity
Straight groove.
It is spaced apart in the lower part of the accommodating cavity for the upper housing for accommodating the piston and is equipped with several exhaust passages, the exhaust is logical
It is connected to outside road and the upper housing；When piston is located at initial position, the piston is located above the exhaust passage.
The limited step for supporting the recess is offered in the accommodating cavity cavity wall where the bottom periphery of the recess.
In the accommodating cavity for being located at the notched bottoms, the close fracture groove side, it is provided with the support conduction
The cushion block of plate.
The cushion block upper end has extension against the accommodating cavity side wall close to accommodating cavity side wall side；The cushion block root
Portion is located at the bottom of the other side of the accommodating cavity, and the lower end of the cushion block passes through the hanging muscle position cushion block root connection.
The cushion block root side that can be contacted, which is fallen, after conductive plate fracture is provided with several salient points；In the pad
Ripple struction is provided with below block.
The lower end of the cushion block root is arranged at intervals with convex block, and the convex block is contacted with the bottom of the accommodating cavity.
The upper housing and the accommodating cavity of the lower case are perforation setting；When the piston from the upper casing running body extremely
When the dead-centre position of lower case, the piston be resisted against after fracture fall to conductive plate in lower case accommodating cavity with it is described
Between cushion block.
The fracture recess and the bending recess shape are that U-shaped, V-groove or U-type groove and V-groove combine.
The knife-like structure is set for the eccentric relative to the piston only.
The exhaust passage of the upper housing, the piston and the upper housing, the lower case, the piston and it is described under
The exhaust passage of shell forms exhaust passage independent, for distinguishing the gas of the upper piston area and its underpart generation
Individually discharge.
The present invention light a fire a large amount of high pressure gas of generation that explode when electronic ignition destructor receives external signal, piston
Under drive of high-pressure gas, positive stop lug boss limit is overcome to move downward the fracture recess at impact conductive plate, conductive plate is being broken
Indent is broken and the side wall using bending indentation, there as shaft downward along cushion block is fallen, to disconnect main circuit.Due to piston
On be provided with absorb impact energy salient point and reinforcing rib；Wave structure is provided below in cushion block, is provided on cushion block outstanding
The muscle position of empty absorption impact energy is provided with the salient point for absorbing impact capacity, therefore, fuse of the invention in cushion block root
It can be very good to absorb impact energy；Meanwhile exhaust passage is provided on upper housing, when piston is moved downwardly to by impact
When in lower case, the gas that upper piston area generates can be discharged by exhaust passage to outside shell, avoid enter into lower case accommodating cavity
Middle influence electric property.
Detailed description of the invention
Fig. 1, longitudinal schematic cross-sectional view.
Fig. 2, schematic cross-sectional view after slit shearing.
Fig. 3, piston schematic perspective view.
Fig. 4, piston positive structure diagram.
Fig. 5, cushion block schematic perspective view.
Fig. 6, cushion block side structure schematic view.
Specific embodiment
Scheme in view of the above technology is now specifically described for embodiment and in conjunction with diagram.Fast current of the invention is cut
Disconnected device includes mainly upper housing, conductive plate, lower case, gas generating unit etc., referring to Fig. 1 to Fig. 6, wherein.
Shell is made of upper housing 1 and the splicing of lower case 2 in the present embodiment.Between upper housing and lower casing contact level
It is provided with conductive plate 3, upper housing, lower case and conductive plate are fixed together by screw between upper housing and lower case.It leads
It is sealed at battery plate and upper housing, lower end face contact position.
Accommodating cavity is offered in upper housing, in the present embodiment, which is divide into upper part and lower part perforation setting, In
Electronic ignition destructor 4 is fixedly installed in upper accommodating cavity, electronic ignition device upper end carries out it by the way that pressing plate 41 is arranged
Positioning.Be provided with piston 5 in lower accommodating cavity, piston and lower accommodating cavity are interference fit, the interference fit degree meet piston by
To when high pressure gas impact, it can be detached from interference fit constraint, do ballistic motion downwards.Electronic ignition destructor is gas
Device carries out igniting generation high pressure gas by receiving external signal, to push piston displacement.
Piston 5, the piston only 51 including cylindrical-shaped structure, piston only 51 and the lower accommodating cavity interference of upper housing are matched
It closes.Knife-like structure 52 is provided with below piston only.Outside the side wall of the prominent piston only of the two side ends of knife-like structure, in knife
The two side ends lower part front and rear sides of the prominent piston only of shape structure are provided with the spacing block set 53 of protrusion two side ends.In piston only
Lower surface on be provided with several salient points 54, for absorbing impact capacity.It is spaced on two surfaces of knife-like structure 52 and sets vertically
Several reinforcing ribs 55 that can be used for absorbing impact energy are equipped with, the presence of the reinforcing rib is also used for reinforcing the intensity of knife-like structure,
It is absorbable simultaneously to rush in energy.The width of knife-like structure be greater than conductive plate width, be located at conductive plate fracture recess just on
Side.It is arranged below knife-like structure for inclined-plane, is convenient to concentrate application shearing force, convenient for cutting conductive plate.In lower accommodating cavity chamber
The vertical groove of corresponding knife-like structure two side ends is offered on wall, which extends downward at the lower end surface of upper housing,
It is connected to the accommodating cavity of lower case.The recess of accommodating spacing block set 53 is additionally provided in the groove.When piston is set to lower appearance
When setting intracavitary, the two side ends of knife-like structure are located in corresponding vertical groove, and spacing block set is located in recess.So
Setting, vertical groove can position piston, prevent its rotation, guarantee that knife-like structure in impact, can be directed at conductive plate institute
Need place of incision.Spacing block set, which is located in recess, limits piston upper and lower position, prevents piston in case of shock to leading
The fracture recess of battery plate causes to damage.
When piston is not affected by external impacts, can be located in lower accommodating cavity.When being impacted by high pressure gas, piston to
Lower movement, positive stop lug boss fracture lose the position-limiting action to piston, then piston moves downward realization under the guiding of vertical groove
Cutting to conductive plate.In the lower half portion of the lower accommodating cavity cavity wall of the upper housing of the lower section of piston only, it is respectively separated and opens up
There is exhaust passage, which is connected to upper housing chamber resettling and hull outside.The setting position of the exhaust passage, which meets, lives
Plug can move downward cutting conductive plate, and lead the dead-centre position in lower case under high-pressure gas pressure.Upper housing, work
The exhaust passage that the exhaust passage of plug and upper housing is formed will be located at piston overhead gas and be discharged via the exhaust passage of upper housing
Outside shell, the gas above piston is avoided to enter in the lower case below piston, fuse electric property is impacted；Lower casing
The exhaust passage that the exhaust passage of body, piston and lower case is formed, the gas for will generate below piston is via lower case
Exhaust passage drains into outside shell.The exhaust passage of the upper housing and the exhaust passage of lower case are independent exhaust passage.
When piston moves downward, knife-like structure cuts off conductive plate, and for pushing conductive plate to do yaw motion downwards, arrives
When up to dead-centre position, crumple at the top of the reinforcing rib of knife-like structure absorbs impact energy.Meanwhile the salient point below piston only
Absorbable impact energy.
The knife-like structure of piston does eccentric setting relative to piston only, and it is reversed can to prevent piston installation.Piston by
After external force cuts off conductive plate and enter dead-centre position to bottom offset, upper-lower casing and piston can form independent exhaust
Road, the gas for generating top are individually discharged, and without entering in lower case accommodating cavity, influence electric property.Piston exists
After reaching dead-centre position, since the accommodating cavity of piston and upper-lower casing is interference fit, it is able to maintain in damned point
It sets, does not bounce.The upper surface of piston completely cuts off chamber resettling up and down simultaneously, i.e., also holds upper housing accommodating cavity and lower case
Set the connection isolation between chamber.
Accommodating cavity is offered with upper housing corresponding position in lower case, accommodating cavity top is wider than accommodating cavity lower part, makes
Accommodating cavity top lower end forms a limited step.Conductive plate 3 is to recessed downwards at the accommodating cavity of lower case, in lower case accommodating cavity
Middle to form flat recess, making conductive plate integrally is in a few type structures.The bottom both ends of the flat recess of conductive plate are resisted against accommodating
At the limited step that chamber top lower end is formed, support.The flat bottoms of the recess of accommodating cavity bottom are placed in conductive plate
Upper be spaced apart is divided to be equipped with fracture notch 31 and bending notch 32.The width of each notch perforation conductive plate.Each notch geometry can be V
Type structure, is also possible to U-shaped structure, is also possible to the combination of U, V notch.Piston knife-like structure is located above fracture notch.It is conductive
Lower case accommodating cavity where plate moves downward for piston along the accommodating cavity.Accommodating cavity below conductive plate is for piston knife
Shape structure passes through.
Conductive plate is slab construction, and in the present embodiment, material uses copper, and resistance is smaller.It is broken being located at conductive plate
Cushion block 6 is set on the accommodating cavity side wall of bottom of the gap, and cushion block includes cushion block body 61 and cushion block root 62.The upper surface of cushion block body
It is resisted against below the conductive plate between fracture notch and accommodating cavity side wall and supports, accommodating is located at below cushion block body
Bottom of chamber portion.The upper part of cushion block body is stretched out to the side wall of its neighbouring accommodating cavity and pushes against the accommodating cavity side wall, cushion block sheet
The lower end of body is stretched out to the other side of accommodating cavity.Cushion block root 62 is resisted against another side wall of accommodating cavity, and is located at accommodating cavity
Bottom is provided with absorption impact energy on the side that can contact with cushion block root after conductive plate fracture in cushion block root side
The salient point of amount.It is connected between cushion block root and the lower end of cushion block body by hanging muscle position 63.Cushion block root and muscle position connect
The lower end surface at the place of connecing is downwardly extending convex block 64, and is resisted against above accommodating cavity bottom, keeps cushion block root whole in addition to convex block
The outer hanging setting in place is on accommodating cavity bottom.Hanging muscle position is located at underface when piston impacts downwards, the muscle position and appearance
Set between the portion of bottom of chamber that there are certain intervals, therefore, on above conductive plate falls to muscle position, the trembling for passing through muscle position absorbs impact
Energy.Cushion block root bottom is due to being provided with convex block, and is connected with muscle position, by blastic deformation for absorbing impact energy.In
The lower surface of cushion block body offers wave structure 65 respectively, conductive plate fracture downwards fall to cushion block cause impact when,
Wave structure can absorb impact energy by crumple.It falls after conductive plate is broken by piston impact under, falls downwards
Falling end side can be resisted against at cushion block root, and then piston knife-like structure lower end is then resisted against conductive plate breaking part and cushion block body
Between, it is stuck to the conductive plate progress position fallen, improve breaking capacity.It offers on the accommodating cavity of lower case for lower case
The exhaust passage that is discharged to hull outside of gas.
A large amount of high pressure gas are generated when electronic ignition destructor receives external signal explosion of lighting a fire, piston is in high pressure
Under gas-powered, spacing block set limit is overcome to move downward the fracture recess at impact conductive plate, conductive plate is in fracture indent
It is broken and the side wall using bending indentation, there as shaft downward along cushion block is fallen, to disconnect main circuit.Since cushion block is provided with
Wave structure, the knife-like structure lower end of piston are also equipped with the energy-absorbing salient point for absorbing energy, the wave of energy-absorbing are provided on cushion block
Therefore striated structure and hanging muscle position when piston is run to cushion block, can absorb energy by crumple.
Claims (16)
1. a kind of external drive type quick opening and closing mechanism, including upper-lower casing and the conductive plate being arranged between upper-lower casing；In
The accommodating cavity of the upper housing is disposed with electronic ignition device and piston from top to bottom, in the piston and the conductive plate
Accommodating cavity is offered in the lower case of lower section, offers exhaust passage in the lower case；It is characterized in that the conductive plate
It is recessed into the lower case accommodating cavity, and flat recess is formed in the accommodating cavity；Between the flat place of the recess
It separates and is equipped with fracture recess and bending recess, the lower end of the piston is located at the top of the fracture recess；In upper-lower casing
Accommodating cavity, which meets the piston, to be moved in lower case from the upper housing.
2. external drive type quick opening and closing mechanism according to claim 1, it is characterised in that the piston includes piston sheet
Body and the knife-like structure below the piston only, the knife-like structure are located at the surface of the fracture recess.
3. external drive type quick opening and closing mechanism according to claim 2, it is characterised in that under the piston only
Face is provided with several salient points；Several reinforcing ribs are arranged at intervals on the two sides of the knife-like structure.
4. external drive type quick opening and closing mechanism according to claim 3, feature are below the knife-like structure
Inclined-plane.
5. external drive type quick opening and closing mechanism according to claim 2, it is characterised in that the two of the knife-like structure are perpendicular
The periphery of the prominent piston only in straight side is respectively arranged with spacing block set in the correspondence position of two side ends lower part.
6. external drive type quick opening and closing mechanism according to claim 5, it is characterised in that in the appearance for accommodating the piston
It sets in chamber, corresponding knife-like structure two sides end position offers the vertical groove extended at the upper housing lower end surface；
It is corresponded in the groove and offers limit notch at the position of the spacing block set；The two side ends of the knife-like structure are held respectively
It sets in the groove, the spacing block set is located in the limit notch；It is corresponded on described on the lower case accommodating cavity
At the groove location of shell, correspondence offers the vertical groove for accommodating the piston two side ends.
7. external drive type quick opening and closing mechanism according to claim 1, it is characterised in that accommodating the upper of the piston
The lower part of the accommodating cavity of shell, which is spaced apart, is equipped with several exhaust passages, is connected to outside the exhaust passage and the upper housing；In
When piston is located at initial position, the piston is located above the exhaust passage.
8. external drive type quick opening and closing mechanism according to claim 1, it is characterised in that outside the bottom of the recess
The limited step for supporting the recess is offered in accommodating cavity cavity wall where all.
9. external drive type quick opening and closing mechanism according to claim 1, it is characterised in that be located at the notched bottoms,
In the accommodating cavity of the fracture groove side, it is provided with the cushion block for supporting the conductive plate.
10. external drive type quick opening and closing mechanism according to claim 9, it is characterised in that the cushion block upper end is close to appearance
Chamber side wall side is set with extension against the accommodating cavity side wall；The cushion block root is located at the other side of the accommodating cavity
The lower end of bottom, the cushion block passes through the hanging muscle position cushion block root connection.
11. external drive type quick opening and closing mechanism according to claim 10, it is characterised in that be broken in the conductive plate
The cushion block root side that falling afterwards can contact is provided with several salient points；Ripple struction is provided with below the cushion block.
12. external drive type quick opening and closing mechanism according to claim 11, it is characterised in that under the cushion block root
End is arranged at intervals with convex block, and the convex block is contacted with the bottom of the accommodating cavity.
13. external drive type quick opening and closing mechanism according to claim 10, it is characterised in that the upper housing and described
The accommodating cavity of lower case is perforation setting；It is described when the piston is from the upper casing running body to the dead-centre position of lower case
Piston is fallen between conductive plate and the cushion block in lower case accommodating cavity after being resisted against fracture.
14. external drive type quick opening and closing mechanism according to claim 1, it is characterised in that the fracture recess and described
Bending recess shape is that U-shaped, V-groove or U-type groove and V-groove combine.
15. external drive type quick opening and closing mechanism according to claim 2, it is characterised in that the knife-like structure relative to
The piston only is set for the eccentric.
16. external drive type quick opening and closing mechanism according to claim 7, it is characterised in that the upper housing, the work
The exhaust passage of plug and the upper housing, the exhaust passage of the lower case, the piston and the lower case are formed respectively solely
Vertical exhaust passage, for the gas generated above the piston and below to be individually discharged outside shell.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910903009.6A CN110491749A (en) | 2019-09-24 | 2019-09-24 | A kind of external drive type quick opening and closing mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910903009.6A CN110491749A (en) | 2019-09-24 | 2019-09-24 | A kind of external drive type quick opening and closing mechanism |
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| Publication Number | Publication Date |
|---|---|
| CN110491749A true CN110491749A (en) | 2019-11-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910903009.6A Pending CN110491749A (en) | 2019-09-24 | 2019-09-24 | A kind of external drive type quick opening and closing mechanism |
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| Country | Link |
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| CN (1) | CN110491749A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112289600A (en) * | 2020-09-22 | 2021-01-29 | 安徽莱特实业集团有限公司 | Electric power fire protection device for electric power information system |
| CN113258541A (en) * | 2021-06-28 | 2021-08-13 | 西安中熔电气股份有限公司 | Normally-open-to-normally-closed excitation protection device for control circuit |
| CN114334573A (en) * | 2021-12-30 | 2022-04-12 | 广东中贝能源科技有限公司 | Intelligent fuse |
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| CN108010823A (en) * | 2017-12-29 | 2018-05-08 | 西安中熔电气股份有限公司 | A kind of fuse of high response speed |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112289600A (en) * | 2020-09-22 | 2021-01-29 | 安徽莱特实业集团有限公司 | Electric power fire protection device for electric power information system |
| CN113258541A (en) * | 2021-06-28 | 2021-08-13 | 西安中熔电气股份有限公司 | Normally-open-to-normally-closed excitation protection device for control circuit |
| CN114334573A (en) * | 2021-12-30 | 2022-04-12 | 广东中贝能源科技有限公司 | Intelligent fuse |
| CN114334573B (en) * | 2021-12-30 | 2024-03-12 | 广东中贝能源科技有限公司 | Intelligent fuse |
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