CN105244196B - A kind of contact arm structure - Google Patents
A kind of contact arm structure Download PDFInfo
- Publication number
- CN105244196B CN105244196B CN201510630966.8A CN201510630966A CN105244196B CN 105244196 B CN105244196 B CN 105244196B CN 201510630966 A CN201510630966 A CN 201510630966A CN 105244196 B CN105244196 B CN 105244196B
- Authority
- CN
- China
- Prior art keywords
- contact
- contact arm
- arc
- attaching
- arm cylinder
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H1/00—Contacts
- H01H1/06—Contacts characterised by the shape or structure of the contact-making surface, e.g. grooved
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H1/00—Contacts
- H01H1/50—Means for increasing contact pressure, preventing vibration of contacts, holding contacts together after engagement, or biasing contacts to the open position
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H1/00—Contacts
- H01H1/62—Heating or cooling of contacts
Landscapes
- Arc-Extinguishing Devices That Are Switches (AREA)
Abstract
The invention discloses a kind of contact arm structures, it includes contact arm cylinder and contact, the both ends of contact arm cylinder are respectively mouthpiece and fixing end, contact includes contact, plum blossom piece and tension spring, cylinder body outer wall at mouthpiece is equipped with the annular engagement slot with contact cooperation attaching, contact is an elongated sheet, with inner side and outer side, one end on the inside of contact has the first arc protrusion contacted with mating groove, the other end on the inside of contact has the second arc protrusion contacted with static contact cooperation, the diameter of axle of the mating groove is φ 30mm φ 40mm, the outer arc radius of the first arc protrusion is R12mm R18.5mm, the outer arc radius of the second arc protrusion is R7mm R20mm, the contact arm cylinder material uses 6082 T6 of aluminium.It has the following advantages that：Materials being fabricated is saved, reduces manufacture cost.
Description
Technical field
The present invention relates to a kind of contact arm structures.
Background technology
In the distribution industry of middle-placed switch cabinet, due to fierce market competition, city's field alignment puts the production cost of cabinet manufacturer
Propose strict requirements.Contact arm is the core component of middle-placed switch cabinet and an Important Components of breaker, is meeting performance
In the case of it is required that, it is very urgent to reduce production cost.
The material of general 1250A contact arms is that red copper (T2Y) or Cu and Al combination body, material cost are higher currently on the market.
Its contact arm structure includes contact arm cylinder and contact, and the both ends of contact arm cylinder are respectively mouthpiece and fixing end, and contact includes contact, plum
Flower piece and tension spring, mouthpiece cylinder body outer wall be equipped with contact cooperation attaching annular engagement slot, contact be an elongated sheet, have pair
The inner side and outer side of Ying Yuqi attaching modes, one end inside of contact have the first arc protrusion contacted with mating groove, contact
There is the second arc protrusion contacted with static contact cooperation, the diameter of axle of mating groove is φ 28mm, and the first arc is convex on the inside of the other end
The outer arc radius in portion is R10mm, i.e. the contact area of contact arm cylinder and contact is still smaller, the outer arc radius of the second arc protrusion
For R5mm, i.e. the contact area of contact and static contact is still smaller, therefore, in order to increase contact and contact arm cylinder and static contact
Contact area, contact thickness currently on the market is 3mm.
Secondly, widely used 1250A contacts are by 24 copper contact blades (contact thickness 3mm), plum blossom frame currently on the market
It is formed with 4 tension springs, every 2 one group of 24 contacts are respectively assembled in the groove of plum blossom frame for 12 groups, plum blossom frame passes through three totally
Pillar is riveted with two panels plum blossom piece.Overall calculate is come, and the materials of contact are excessive, since the riveting of pillar limits, the work of contact
Dynamic property is poor, and influence contact and static contact is engaged effect.
In addition, as shown in Figure 1, contact in the market is often in the first arc protrusion bottom one boss 210 of projection again, boss
Coordinate with the step surface that the cylinder below mating groove and mating groove is formed, so that contact obtains adaptation positioning on contact arm cylinder,
If but the step surface is improved, which will become non-essential part, therefore the boss is to a certain extent
Cause the consuming of material.
Therefore, contact arm structure of the prior art has as a drawback that：Consumptive material is more, manufacture is of high cost.
Invention content
The present invention provides a kind of contact arm structures, and which overcome the deficiencies in the prior art described in background technology.
The technical solution adopted by the present invention to solve the technical problems is：
A kind of contact arm structure, it includes contact arm cylinder and contact, and one end of contact arm cylinder is the mouthpiece to connect with contact, separately
One end is to include contact, plum blossom piece and tension spring with the fixed fixing end of breaker, contact, and the cylinder body outer wall at mouthpiece is equipped with touching
Piece coordinates the annular engagement slot of attaching, and contact is an elongated sheet, has the inner side and outer side corresponding to its attaching mode, contact
One end of inside has the first arc protrusion for contact with mating groove, and the other end on the inside of contact, which has to coordinate with static contact, to be contacted
The second arc protrusion, the diameter of axle of the mating groove is φ 30mm- φ 40mm, and the outer arc radius of the first arc protrusion is
R12mm-R18.5mm, the outer arc radius of the second arc protrusion is R7mm-R20mm, and the contact arm cylinder material uses aluminium
6082-T6。
Among one embodiment：The first arc protrusion of described contact one end the side of contact length direction for flat face and
The lowermost end of one end for the contact.
Among one embodiment：Be equipped at intervals between both ends on the inside of the contact two be respectively used to two plum blossom pieces each one
The card slot that groove is mutually clamped, the plum blossom piece is by two card slots of contact between the upper and lower every corresponding attaching.
Among one embodiment：One contact of attaching is corresponded in the groove of the two plum blossoms piece.
Among one embodiment：The thickness of the contact is 2mm.
Among one embodiment：The number of the contact is 26, and the thickness of contact is 2mm.
Among one embodiment：The arc groove with tension spring cooperation attaching is used for there are four being set on the outside of the contact.
Among one embodiment：Mouthpiece end outer rim is equipped with rounded corner, a diameter of φ 36mm- φ of radian of rounded corner
45mm。
Among one embodiment：The mating groove forms step surface with cylinder below, and cylinder external diameter is φ below
38mm-φ46mm。
Compared with background technology, it has the following advantages that the technical program：
1st, contact arm cylinder material uses aluminium 6082-T6, and the diameter of axle of mating groove increases to φ 30mm- φ 40mm, the first arc
The outer arc radius of shape protrusion increases to R12mm-R18.5mm, so as to increase the contact area of contact arm cylinder and contact, the second arc
The outer arc radius of shape protrusion increases to R7mm-R20mm, so as to increase the contact area of contact and static contact, is touched by changing
Contact site structure between arm cylinder body, contact and static contact three under the premise of the performance of product is met, and reduces
Manufacture cost.
2nd, the first arc protrusion of described contact one end is flat face in the side of contact length direction and is the contact
One end lowermost end, save the projection section of contact described in the prior art, save consumptive material, reduce manufacture cost.
3rd, two are equipped at intervals between the both ends on the inside of the contact to be respectively used to mutually be clamped with each groove of two plum blossom pieces
Card slot, the plum blossom piece, between the upper and lower every corresponding attaching, increases the activity of contact, convenient for contact by two card slots of contact
It is preferably engaged with static contact, ensures that contact and contact arm cylinder, static contact come into full contact with.
4th, one contact of attaching is corresponded in the groove of the two plum blossoms piece, increases the contact area of contact and plum blossom piece, change
Good electric conductivity, while also it is conducive to the heat dissipation of contact.
5th, the number of the contact is 26, and the thickness of contact is 2mm, saves consumptive material, reduces manufacture cost.
Description of the drawings
The invention will be further described with reference to the accompanying drawings and examples.
Fig. 1 depicts the contact plate structure figure described in background technology.
Fig. 2 depicts contact arm tube structure figure.
Fig. 3 depicts contact plate structure figure.
Fig. 4 depicts plum blossom chip architecture figure.
Fig. 5 depicts contact installation diagram.
Fig. 6 depicts the installation diagram of contact arm cylinder and contact.
Fig. 7 depicts the assembling half sectional view of contact arm cylinder, contact.
Fig. 8 depicts the assembling half sectional view of contact arm cylinder, contact, static contact.
Specific embodiment
Fig. 2 to Fig. 8 is please referred to, a kind of contact arm structure, it includes contact arm cylinder 10 and contact 20, one end of contact arm cylinder 10
For the mouthpiece 11 to connect with contact 20, the other end is to include contact 21, plum blossom piece 22 with the fixed fixing end of breaker, contact 20
With tension spring 23.
Cylinder body outer wall at mouthpiece 11 is equipped with the annular engagement slot 111 for coordinating attaching with contact 21.Contact 21 is one
Elongated sheet has corresponding to the inside (towards cylinder axle center during attaching) of its attaching mode and outside (backwards to cylinder during attaching
Axle center)；One end of 21 inside of contact has the first arc protrusion 211 contacted with mating groove 111, the other end of 21 inside of contact
With the second arc protrusion 212 contacted with the cooperation of static contact 30；The diameter of axle of the mating groove 111 is φ 30mm- φ 40mm, preferably
Ground, the diameter of axle of the mating groove 111 is φ 36mm；The outer arc radius of the first arc protrusion 211 is R12mm-R18.5mm, preferably
Ground, the outer arc radius of the first arc protrusion 211 is R16.5mm；By the diameter of axle and the first arc protrusion that increase mating groove 111
211 outer arc radius makes the first arc protrusion 211 more straight with the arc surface of the mating groove 111, so as to increase contact arm cylinder
The contact area of body 10 and contact 21；The outer arc radius of the second arc protrusion 212 is R7mm-R20mm, it is preferable that this second
The outer arc radius of arc protrusion 212 is R20mm；Make second arc convex by the outer arc radius for increasing the second arc protrusion 212
The arc surface in portion 212 is more straight, so as to increase the contact area of contact 21 and static contact 30；By change contact arm cylinder 10,
Contact site structure between 30 three of contact 21 and static contact, increases the contact area between them, so as to improve they it
Between contact electric conductivity, under the premise of the experiment such as rising by dynamic heat and temperature and meeting the performance of product, using aluminium
6082-T6 manufactures contact arm cylinder, the thickness of contact 21 is reduced to 2mm, the contact area of contact 21 will not be reduced, contact 21
Weight be reduced to 11.6 grams by original 20.2 grams, save 43.1% material, greatly reduce manufacture cost, make product
It is more environmentally protective.
The 11 end outer rim of mouthpiece is equipped with rounded corner 112, and mating groove 111 forms step surface with cylinder 113 below, preferably
In embodiment, a diameter of φ 36mm- φ 45mm of radian of the rounded corner 112, which is
φ 38mm- φ 46mm, it is preferable that a diameter of φ 42mm of radian of the rounded corner 112,111 lower section cylinder of mating groove, 113 outer diameter
For φ 44, the outer diameter of the lower section cylinder 113 by increasing mating groove 111, to increase the width of step surface, so as to increase contact
21 with the contact area of contact arm cylinder 10, while be also beneficial to the first arc protrusion 211 of contact 21 in the mating groove 111
It is fixed.
First arc protrusion 211 of 21 one end of contact is flat face in the side of contact length direction and is the contact
The lowermost end of 21 one end.The projection section of contact described in the prior art is saved, saves consumptive material, reduces manufacture cost.
Two are equipped at intervals between the both ends of 21 inside of the contact and is respectively used to 221 phase card of each groove with two plum blossom pieces 22
The card slot 213 connect, for plum blossom piece by two card slots 213 of contact 21 between the upper and lower every corresponding attaching, two plum blossom pieces 22 are in free state,
It is riveted without three pillars.The attaching mode increases the activity of contact 30, is preferably stung convenient for contact 21 and static contact 30
It closes, ensures that contact 21 and contact arm cylinder 10, static contact 30 come into full contact with.Attaching one is corresponded in the groove 221 of two plum blossom pieces 22
Contact 21, i.e. contact 21 are assembled in the form of monolithic in two plum blossom pieces, 22 corresponding each groove 221 up and down, are increased tactile
The contact area of piece 21 and mating groove 111, static contact 30 improves electric conductivity, while is also conducive to the heat dissipation of contact 21.The contact 21
Number for 26, and the thickness of contact 1 is 2mm, generally saves consumptive material, reduces manufacture cost.
The outside of the contact 21 is used for the arc groove 214 for coordinating attaching with tension spring 23 there are four setting.
The structure of contact portion of the present invention by changing contact arm cylinder 10, on contact 21 increases cylinder 10, contact 21
On the one hand contact conductive area between static contact 30 improves the conductive characteristic between them, on the other hand also makes this hair
It is bright to use aluminium 6082-T6 conducts instead under the premise of by the experiment such as dynamic heat and temperature liter and meeting the performance of product
Former contact thickness is that 3mm red copper sheet materials are changed to thickness and are by the making material of contact arm cylinder 10, while reduce the thickness of contact 21
The red copper sheet material of 2mm, is greatly saved material, reduces cost.
The present invention also (changes contact 21 and plum by the structure and the composition structure of change contact 20 that change contact 21
Mounting means between flower piece 22), conductive characteristic, activity characteristic and the heat dissipation performance of contact 20 are further improved, is gone back simultaneously
The material materials of contact part are further saved, material is saved, reduces cost, are ensureing the original usability of the present invention
Under the premise of energy, further improve the overall performance of the present invention and reduce manufacture cost.
The above, only present pre-ferred embodiments, therefore the range implemented of the present invention cannot be limited according to this, i.e., according to
The equivalent changes and modifications that the scope of the claims of the present invention and description are made all should still belong in the range of the present invention covers.
Claims (7)
1. a kind of contact arm structure, including contact arm cylinder and contact, one end of contact arm cylinder is the mouthpiece that connects with contact and another
Hold for the fixed fixing end of breaker, contact includes contact, plum blossom piece and tension spring, the contact arm cylinder body outer wall at mouthpiece be equipped with
Contact coordinates the annular engagement slot of attaching, and contact is an elongated sheet, has the inner side and outer side corresponding to its attaching mode, touches
One end on the inside of piece has the first arc protrusion contact with annular engagement slot, and the other end on the inside of contact with static contact with matching
The second arc protrusion that splice grafting touches, it is characterised in that：The diameter of axle of the annular engagement slot isIt is described
The outer arc radius of first arc protrusion is R12mm-R18.5mm, and the outer arc radius of the second arc protrusion is R7mm-R20mm,
The contact arm cylinder material uses aluminium 6082-T6；
The first arc protrusion of described contact one end in the side of contact length direction be flat face and be the contact one end
Lowermost end；
Two are equipped at intervals between both ends on the inside of the contact and is respectively used to the card slot being mutually clamped with each groove of two plum blossom pieces,
The plum blossom piece is by two card slots of contact between the upper and lower every corresponding attaching.
2. a kind of contact arm structure according to claim 1, it is characterised in that：Attaching is corresponded in the groove of the two plum blossoms piece
One contact.
3. a kind of contact arm structure according to claim 1 or 2, it is characterised in that：The thickness of the contact is 2mm.
4. a kind of contact arm structure according to claim 2, it is characterised in that：The number of the contact is 26, and contact
Thickness be 2mm.
5. a kind of contact arm structure according to claim 1, it is characterised in that：Set on the outside of the contact there are four be used for
Tension spring coordinates the arc groove of attaching.
6. a kind of contact arm structure according to claim 1, it is characterised in that：Mouthpiece end outer rim is equipped with rounded corner,
The radian of rounded corner is a diameter of
7. a kind of contact arm structure according to claim 1, it is characterised in that：The mating groove is formed with cylinder below
Step surface, contact arm cylinder external diameter are
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510630966.8A CN105244196B (en) | 2015-09-29 | 2015-09-29 | A kind of contact arm structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510630966.8A CN105244196B (en) | 2015-09-29 | 2015-09-29 | A kind of contact arm structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105244196A CN105244196A (en) | 2016-01-13 |
| CN105244196B true CN105244196B (en) | 2018-06-26 |
Family
ID=55041799
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510630966.8A Active CN105244196B (en) | 2015-09-29 | 2015-09-29 | A kind of contact arm structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105244196B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107507709A (en) * | 2016-06-14 | 2017-12-22 | 江苏大全长江电器股份有限公司 | A kind of FC contactor handcarts moving contact |
| CN111799122B (en) * | 2019-04-08 | 2023-03-31 | 河南平芝高压开关有限公司 | Isolating switch and static contact component thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1205529A (en) * | 1997-07-11 | 1999-01-20 | 三菱电机株式会社 | Connector of terminal |
| CN103325584A (en) * | 2013-04-27 | 2013-09-25 | 厦门华电开关有限公司 | Arc main current resisting contact device and switch device |
| EP2725596A2 (en) * | 2012-09-28 | 2014-04-30 | Eaton Corporation | Contact system |
| CN204130363U (en) * | 2014-10-22 | 2015-01-28 | 厦门华泰利机电有限公司 | A kind of copper contact arm |
| CN205004194U (en) * | 2015-09-29 | 2016-01-27 | 厦门华泰利机电有限公司 | Touch arm structure |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102005017902A1 (en) * | 2005-04-18 | 2006-10-19 | Abb Technology Ag | Switch-disconnector and switchgear with switch-disconnector |
-
2015
- 2015-09-29 CN CN201510630966.8A patent/CN105244196B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1205529A (en) * | 1997-07-11 | 1999-01-20 | 三菱电机株式会社 | Connector of terminal |
| EP2725596A2 (en) * | 2012-09-28 | 2014-04-30 | Eaton Corporation | Contact system |
| CN103325584A (en) * | 2013-04-27 | 2013-09-25 | 厦门华电开关有限公司 | Arc main current resisting contact device and switch device |
| CN204130363U (en) * | 2014-10-22 | 2015-01-28 | 厦门华泰利机电有限公司 | A kind of copper contact arm |
| CN205004194U (en) * | 2015-09-29 | 2016-01-27 | 厦门华泰利机电有限公司 | Touch arm structure |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105244196A (en) | 2016-01-13 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105244196B (en) | A kind of contact arm structure | |
| CN104821973A (en) | Three-section type mobile phone battery cover assembly structure and mobile phone | |
| CN205004194U (en) | Touch arm structure | |
| CN204558722U (en) | A kind of small-sized high stability connects shell fragment | |
| CN202855679U (en) | Electrical contact structure | |
| CN203277156U (en) | Key structure | |
| CN205194596U (en) | Mechanical button keyboard of waterproof vibrations | |
| CN204760283U (en) | Button shell fragment and pad pasting button switch | |
| CN203734751U (en) | Television front frame and assembly equipment for same | |
| CN203279103U (en) | Novel horn holder | |
| CN202697080U (en) | Upper fixing member of display screen | |
| CN207868034U (en) | A kind of magnetic core of transformer for light-emitting diode display | |
| CN203114805U (en) | Screen connecting structure | |
| CN203466111U (en) | Metal dome | |
| CN205508697U (en) | Switch is swayd to quadriversal | |
| CN201226312Y (en) | Touch key-press | |
| CN203119104U (en) | Cell contact chip | |
| CN202889299U (en) | Miniature crystal resonator | |
| CN203085377U (en) | Wafer for plum blossom contact | |
| CN204966365U (en) | Isolator's contact means and isolator | |
| CN204945543U (en) | Small LCD display screen group | |
| CN202872953U (en) | Direct type integrated liquid crystal television structure | |
| CN204218049U (en) | A kind of Novel button part | |
| CN203104641U (en) | Television decorating strip and decorating strip matching structure | |
| CN206341273U (en) | A kind of Mobile telephone shell |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |