CN205282373U - Explosion chamber and contact means thereof - Google Patents
Explosion chamber and contact means thereof Download PDFInfo
- Publication number
- CN205282373U CN205282373U CN201520991278.XU CN201520991278U CN205282373U CN 205282373 U CN205282373 U CN 205282373U CN 201520991278 U CN201520991278 U CN 201520991278U CN 205282373 U CN205282373 U CN 205282373U
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- China
- Prior art keywords
- contact
- conducting rod
- pilot hole
- spacing preiection
- slot
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- 238000004880 explosion Methods 0.000 title abstract 2
- 238000003466 welding Methods 0.000 claims abstract description 24
- 230000002093 peripheral effect Effects 0.000 claims abstract description 13
- 229910000679 solder Inorganic materials 0.000 claims abstract description 13
- 230000003068 static effect Effects 0.000 claims description 7
- 238000000034 method Methods 0.000 abstract description 13
- 230000000694 effects Effects 0.000 abstract description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 238000013475 authorization Methods 0.000 description 1
- 230000009286 beneficial effect Effects 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
- 230000007547 defect Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
Landscapes
- Transformers For Measuring Instruments (AREA)
Abstract
The utility model relates to an explosion chamber and contact means thereof, contact means includes conducting rod and contact, the contact is through arranging that solder solder mount between contact and conducting rod is at the conducting rod front end, it joins in marriage the structure to be equipped with identical the inserting in shaft hole between conducting rod and the contact, the shaft hole coincide insert join in marriage the structure insert including coincideing join in marriage all along the location axle and the locating hole of fore -and -aft direction extension, one of them setting in location axle and the locating hole is in the rear end of contact, another establishes the front end at the conducting rod, be equipped with between location axle and the locating hole and be used for realizing before contact and the conducting rod welding that the fixed knot in advance of fixation constructs in advance, fixed knot constructs including spacing arch and corresponds the complex constant head tank with spacing arch in advance, one of them setting in spacing arch and the constant head tank is in on the outer peripheral face of location axle, another corresponds to set up and is in on the inner peripheral surface of locating hole. The mode of utilizing the axial and radially fixing a position respectively, avoid fixed in -process to arouse that the slope appears in the contact and the welding effect is guaranteed in the gap of bringing.
Description
Technical field
The utility model relates to a kind of arc suppressing transformer and contact apparatus thereof.
Background technology
The manufacturing processed of existing vacuum interrupter generally adopts one-step seal-exhaust technique, but in order to ensure the welding quality of contact and conducting rod, usually first by contact and conducting rod, pre-welding is once in a vacuum furnace, then, again parts good to remaining part and pre-welding are assembled, put into vacuum oven and carry out one-step seal-exhaust. In order to prevent contact from coming off in one-step seal-exhaust, pre-weld temperature is higher than one-step seal-exhaust temperature 20 �� of about C. But this kind needs to adopt pre-welding technique and carry out the technique of one-step seal-exhaust, it is not complete one-step seal-exhaust technique truly. In fact, complete one-step seal-exhaust technique directly knocks down disposable for all component of vacuum interrupter in vacuum oven, has been exactly all-welded vacuum interrupter, it is not necessary to carry out pre-welding after coming out of the stove.
In fact, existing spiral slot contact also can realize complete one-step seal-exhaust, but usually conducting rod and contact is riveted together before welding. As Authorization Notice No. be CN203300538U Chinese utility model patent in disclosed for the moving conductive rod of vacuum interrupter and the welded construction of contact, it arranges projection in one end of moving conductive rod, corresponding contact has hole, contact is arranged on moving conductive rod, and welded by solder, and hole on contact and the protruding riveted joint on moving conductive rod. The mode of the pre-welding before adopting riveting method to replace, and utilize the solder between moving conductive rod with contact to make this kind of contact apparatus can together carry out one-step seal-exhaust together with other component of vacuum interrupter and weld.
Above-mentioned this kind of riveting method adopts hole axle running fit, need sandwiched solder between contact and conducting rod, at normal temperatures, conducting rod and contact are riveted tightly, and riveting process can cause stress to be concentrated, under welding high temperature action, due to thermal expansion, gap easily occurs between the face of weld between contact and conducting rod, cause solder evenly not flow, make welding between conducting rod with contact that defect occur, affect the reliability of one-step seal-exhaust technique.
Practical novel content
The utility model provides a kind of arc suppressing transformer contact apparatus, utilizes riveted joint to realize contact to fix with conducting rod and to assemble and affect the technical problem of one-step seal-exhaust welding quality to solve in prior art; Meanwhile, the utility model also provides conducting rod and the contact of above-mentioned contact apparatus; The utility model also provides the vacuum interrupter using above-mentioned contact apparatus.
The technical scheme of arc suppressing transformer contact apparatus provided by the utility model is: a kind of arc suppressing transformer contact apparatus, comprise conducting rod and contact, contact by the solder assemble welding that is arranged between contact and conducting rod in conducting rod front end, the identical inserting structure of axis hole it is provided with between described conducting rod and contact, the identical inserting structure of axis hole comprises the location axle extended all along the longitudinal direction and the pilot hole of identical inserting, locate one of them rear end being arranged on contact in axle and pilot hole, another is arranged on the front end of conducting rod, it is provided with between location axle and pilot hole and pre-fixes structure for what realize pre-fixing before contact welds with conducting rod assembling, pre-fix structure and comprise spacing preiection and the locating slot with spacing preiection corresponding matching, on one of them periphery being arranged on described location axle in spacing preiection and locating slot, another correspondence is arranged on the inner peripheral surface of described pilot hole, the horizontal groove section extended along described pilot hole circumference that locating slot comprises the vertical slot section extended along the longitudinal direction and is connected with vertical slot section, vertical slot section has open-ended for what enter for corresponding spacing preiection, horizontal groove section has described spacing preiection that is spaced apart and that enter in horizontal groove section through described vertical slot section along the longitudinal direction and forms the spacing front-rear side walls coordinated of block in the longitudinal direction.
Described spacing preiection has two or more uniformly at intervals along the circumference of described pilot hole.
Described location axle is arranged on the front end of conducting rod, and described pilot hole is the blind hole structure being arranged on the aft end face of contact.
Described spacing preiection is arranged on the periphery of described conducting rod and is arranged in the forward end position of location axle, described locating slot is arranged on contact, the open-ended of the vertical slot section of locating slot is arranged on the aft end face of contact, and the front side wall in the front-rear side walls of the horizontal groove section of described locating slot is arranged at the bottom of the hole of described pilot hole.
Described contact is the spiral groove type contact being evenly equipped with multiple spiral slot on it around circumference, the outer end opening of each spiral slot extends on the periphery of contact, the number of spiral slot is identical with the number of spacing preiection, the number of the vertical slot section on the inner peripheral surface being arranged on pilot hole of locating slot equals the number of spiral slot, and the inner of each spiral slot extends to each vertical slot section one to one to form hatch frame.
The technical scheme of the arc suppressing transformer of the above-mentioned contact apparatus of use provided by the utility model is: a kind of arc suppressing transformer, comprise housing, housing is provided with trigger device and static contact head device, trigger device and/or static contact head device comprise conducting rod and contact, contact by the solder assemble welding that is arranged between contact and conducting rod in conducting rod front end, the identical inserting structure of axis hole it is provided with between described conducting rod and contact, the identical inserting structure of axis hole comprises the location axle extended all along the longitudinal direction and the pilot hole of identical inserting, locate one of them rear end being arranged on contact in axle and pilot hole, another is arranged on the front end of conducting rod, it is provided with between location axle and pilot hole and pre-fixes structure for what realize pre-fixing before contact welds with conducting rod assembling, pre-fix structure and comprise spacing preiection and the locating slot with spacing preiection corresponding matching, on one of them periphery being arranged on described location axle in spacing preiection and locating slot, another correspondence is arranged on the inner peripheral surface of described pilot hole, the horizontal groove section extended along described pilot hole circumference that locating slot comprises the vertical slot section extended along the longitudinal direction and is connected with vertical slot section, vertical slot section has open-ended for what enter for corresponding spacing preiection, horizontal groove section has described spacing preiection that is spaced apart and that enter in horizontal groove section through described vertical slot section along the longitudinal direction and forms the spacing front-rear side walls coordinated of block in the longitudinal direction.
Described spacing preiection has two or more uniformly at intervals along the circumference of described pilot hole.
Described location axle is arranged on the front end of conducting rod, and described pilot hole is the blind hole structure being arranged on the aft end face of contact.
Described spacing preiection is arranged on the periphery of described conducting rod and is arranged in the forward end position of location axle, described locating slot is arranged on contact, the open-ended of the vertical slot section of locating slot is arranged on the aft end face of contact, and the front side wall in the front-rear side walls of the horizontal groove section of described locating slot is arranged at the bottom of the hole of described pilot hole.
Described contact is the spiral groove type contact being evenly equipped with multiple spiral slot on it around circumference, the outer end opening of each spiral slot extends on the periphery of contact, the number of spiral slot is identical with the number of spacing preiection, the number of the vertical slot section on the inner peripheral surface being arranged on pilot hole of locating slot equals the number of spiral slot, and the inner of each spiral slot extends to each vertical slot section one to one to form hatch frame.
The beneficial effects of the utility model are: in arc suppressing transformer contact apparatus provided by the utility model, the shaft hole matching structure formed by location axle and pilot hole between conducting rod and contact realizes the orientation assemble between conducting rod and contact, and, it is provided with between location axle and pilot hole and pre-fixes structure, utilization pre-fixes structure and realizes pre-fixing assembling before contact welds with conducting rod, the axis to contact and radial location is realized owing to pre-fixing the cooperation of spacing preiection and locating slot in structure, then contact by the solder assemble welding that is arranged between conducting rod and contact on conducting rod. utilize the mode axially located respectively with radial direction, avoid the gap causing contact to occur and bring in fixation procedure, effectively ensure welding effect.
Further, spacing preiection is intervally distributed with two or more along pilot hole circumference so that the distribution of force between conducting rod and contact is comparatively even.
Accompanying drawing explanation
Fig. 1 is the structural representation of a kind of embodiment of arc suppressing transformer contact apparatus provided by the utility model;
Fig. 2 is the structural representation of conducting rod in Fig. 1;
Fig. 3 is the structural representation of contact in Fig. 1.
Embodiment
As shown in Figure 1 to Figure 3, the embodiment of a kind of arc suppressing transformer contact apparatus, the contact apparatus in this embodiment comprises conducting rod 1 and contact 2, contact 2 by the solder assemble welding that is arranged between contact 2 and conducting rod 1 in conducting rod front end.
The identical inserting structure of axis hole it is provided with between conducting rod 1 and contact 2, the identical inserting structure of axis hole comprises the location axle 10 extended all along the longitudinal direction and the pilot hole 20 of identical inserting, the front end being arranged on conducting rod 1 of location axle 10 correspondence herein, and pilot hole 20 is the blind hole structure on the aft end face being arranged on contact 2, herein, hear, by axis hole, the radial location that sad news inserting structure realizes conducting rod and contact.
In the present embodiment, it is provided with between location axle 10 and pilot hole 20 and pre-fixes structure for what realize pre-fixing before contact 2 welds with conducting rod 1 assembling, pre-fix structure and comprise spacing preiection 11 and the locating slot 21 with spacing preiection 11 corresponding matching, limit convex 11 is arranged on the periphery of the location axle 10 of conducting rod 1 and is arranged in the forward end position of location axle 10, and spacing preiection has four uniformly at intervals along the circumference locating axle 10, on the inner peripheral surface being located at pilot hole 20 of locating slot 21 correspondence, the horizontal groove section extended along described pilot hole circumference that locating slot herein specifically comprises the vertical slot section extended along the longitudinal direction and is connected with vertical slot section, vertical slot section has open-ended for what enter for corresponding spacing preiection, horizontal groove section has described spacing preiection that is spaced apart and that enter in horizontal groove section through described vertical slot section along the longitudinal direction and forms the spacing front-rear side walls coordinated of block in the longitudinal direction. like this, when by mobile in opposite directions to conducting rod and contact assembling, vertical slot section along locating slot 21 along the longitudinal direction is moved until moving to horizontal groove section by spacing preiection 11, then circumference rotates contact so that spacing preiection 11 enters the axial location being formed on defence line, front and back to conducting rod with the front-rear side walls with horizontal groove section in the horizontal groove section of locating slot 21.
Corresponding, the front side wall in the front-rear side walls of the horizontal groove section of locating slot is arranged on position at the bottom of the hole of pilot hole 20. And on the open-ended aft end face being arranged in contact 2 of the vertical slot section of locating slot.
Further, in the present embodiment, conducting rod is copper material, and contact is CuCr alloy, and the thermal expansivity of conducting rod is greater than the coefficient of expansion of contact.
In the present embodiment, contact 2 for being evenly equipped with the spiral groove type contact of multiple spiral slot 22 around circumference on it, the outer end opening of each spiral slot 22 extends on the periphery of contact 2, the number of spiral slot 22 is identical with the number of spacing preiection 11, the number of the vertical slot section on the inner peripheral surface being arranged on pilot hole 20 of locating slot 21 equals the number of spiral slot 22, and the inner of each spiral slot extends to each vertical slot section one to one to form hatch frame.
During assembling, by the front end being arranged on conducting rod 1 of contact 2 correspondence, the location axle 10 on conducting rod 1 and the pilot hole 20 on contact 2 coincide inserting to form the identical inserting structure of axis hole, it is achieved the radial location between contact and conducting rod. And, when conducting rod and contact move assembling in opposite directions, the vertical slot section corresponding matching of the spacing preiection 11 on conducting rod 1 and the locating slot 21 on contact, spacing preiection is directed to the horizontal groove section place of locating slot 21, circumference rotates contact, make in the horizontal groove section that spacing preiection 11 enters locating slot 21, and form with the front-rear side walls of horizontal groove section that block is spacing to be coordinated, and then realize the axial location of conducting rod and contact. By the radial location between conducting rod and contact and axial location, it is achieved pre-fix assembling before the welding between conducting rod and contact. Under welding high temperature, owing to the thermal expansivity of conducting rod is greater than the thermal expansivity of contact, the solder being arranged between conducting rod with contact melts effectively by together with reliable to conducting rod and contact assemble welding. In welding process, owing to realizing pre-fixing contact, and pre-fix and process can not make contact deflection occurs and brings gap, effectively ensure welding effect.
In the present embodiment, location axle is arranged on conducting rod, and pilot hole is located on contact, in other embodiments, it is also possible to be located on conducting rod by pilot hole, and is located on contact by location axle. Spacing preiection can also be arranged on the inner peripheral surface of pilot hole, and locating slot is arranged on the periphery of location axle.
In the present embodiment, the vertical slot section of locating slot is the straight groove structure extended along the longitudinal direction, and in other embodiments, vertical slot section can also be the arcwall groove arcuately extended.
In the present embodiment, spacing preiection is arranged on the front end of location axle, and position at the bottom of the corresponding hole being located at pilot hole of the horizontal groove section of locating slot, in other embodiments, the horizontal groove section of locating slot can also be arranged on the medium position place of pilot hole, now, it is possible to arrange the position of spacing preiection on the axle of location according to actual needs.
In the present embodiment, contact is spiral groove type contact, in other embodiments, contact can also be other structure of contact terminals of the prior art as board-like contact, the difference of itself and spiral groove type contact is not mainly arranging spiral slot thereon.
The utility model also provides the embodiment of a kind of vacuum interrupter, the structure of the vacuum interrupter in this embodiment is identical with the structure major part of vacuum interrupter of the prior art, include housing, housing arranges trigger device and static contact head device, mainly it is with the difference of vacuum interrupter of the prior art: trigger device in the vacuum interrupter that the present embodiment provides and static contact head device all adopt the structure of above-mentioned vacuum interrupter contact apparatus, do not repeat them here. Certainly, in other embodiments, it is also possible to be the structure that trigger device or static contact head device adopt above-mentioned contact apparatus.
Claims (10)
1. an arc suppressing transformer contact apparatus, comprise conducting rod and contact, contact by the solder assemble welding that is arranged between contact and conducting rod in conducting rod front end, it is characterized in that: between described conducting rod and contact, be provided with the identical inserting structure of axis hole, the identical inserting structure of axis hole comprises the location axle extended all along the longitudinal direction and the pilot hole of identical inserting, locate one of them rear end being arranged on contact in axle and pilot hole, another is arranged on the front end of conducting rod, it is provided with between location axle and pilot hole and pre-fixes structure for what realize pre-fixing before contact welds with conducting rod assembling, pre-fix structure and comprise spacing preiection and the locating slot with spacing preiection corresponding matching, on one of them periphery being arranged on described location axle in spacing preiection and locating slot, another correspondence is arranged on the inner peripheral surface of described pilot hole, the horizontal groove section extended along described pilot hole circumference that locating slot comprises the vertical slot section extended along the longitudinal direction and is connected with vertical slot section, vertical slot section has open-ended for what enter for corresponding spacing preiection, horizontal groove section has described spacing preiection that is spaced apart and that enter in horizontal groove section through described vertical slot section along the longitudinal direction and forms the spacing front-rear side walls coordinated of block in the longitudinal direction.
2. arc suppressing transformer contact apparatus according to claim 1, it is characterised in that: described spacing preiection has two or more uniformly at intervals along the circumference of described pilot hole.
3. arc suppressing transformer contact apparatus according to claim 1 and 2, it is characterised in that: described location axle is arranged on the front end of conducting rod, and described pilot hole is the blind hole structure being arranged on the aft end face of contact.
4. arc suppressing transformer contact apparatus according to claim 3, it is characterized in that: described spacing preiection is arranged on the periphery of described conducting rod and is arranged in the forward end position of location axle, described locating slot is arranged on contact, the open-ended of the vertical slot section of locating slot is arranged on the aft end face of contact, and the front side wall in the front-rear side walls of the horizontal groove section of described locating slot is arranged at the bottom of the hole of described pilot hole.
5. arc suppressing transformer contact apparatus according to claim 4, it is characterized in that: described contact is the spiral groove type contact being evenly equipped with multiple spiral slot on it around circumference, the outer end opening of each spiral slot extends on the periphery of contact, the number of spiral slot is identical with the number of spacing preiection, the number of the vertical slot section on the inner peripheral surface being arranged on pilot hole of locating slot equals the number of spiral slot, and the inner of each spiral slot extends to each vertical slot section one to one to form hatch frame.
6. arc suppressing transformer, comprise housing, housing is provided with trigger device and static contact head device, trigger device and/or static contact head device comprise conducting rod and contact, contact by the solder assemble welding that is arranged between contact and conducting rod in conducting rod front end, it is characterized in that: between described conducting rod and contact, be provided with the identical inserting structure of axis hole, the identical inserting structure of axis hole comprises the location axle extended all along the longitudinal direction and the pilot hole of identical inserting, locate one of them rear end being arranged on contact in axle and pilot hole, another is arranged on the front end of conducting rod, it is provided with between location axle and pilot hole and pre-fixes structure for what realize pre-fixing before contact welds with conducting rod assembling, pre-fix structure and comprise spacing preiection and the locating slot with spacing preiection corresponding matching, on one of them periphery being arranged on described location axle in spacing preiection and locating slot, another correspondence is arranged on the inner peripheral surface of described pilot hole, the horizontal groove section extended along described pilot hole circumference that locating slot comprises the vertical slot section extended along the longitudinal direction and is connected with vertical slot section, vertical slot section has open-ended for what enter for corresponding spacing preiection, horizontal groove section has described spacing preiection that is spaced apart and that enter in horizontal groove section through described vertical slot section along the longitudinal direction and forms the spacing front-rear side walls coordinated of block in the longitudinal direction.
7. arc suppressing transformer according to claim 6, it is characterised in that: described spacing preiection has two or more uniformly at intervals along the circumference of described pilot hole.
8. arc suppressing transformer according to claim 6 or 7, it is characterised in that: described location axle is arranged on the front end of conducting rod, and described pilot hole is the blind hole structure being arranged on the aft end face of contact.
9. arc suppressing transformer according to claim 8, it is characterized in that: described spacing preiection is arranged on the periphery of described conducting rod and is arranged in the forward end position of location axle, described locating slot is arranged on contact, the open-ended of the vertical slot section of locating slot is arranged on the aft end face of contact, and the front side wall in the front-rear side walls of the horizontal groove section of described locating slot is arranged at the bottom of the hole of described pilot hole.
10. arc suppressing transformer according to claim 9, it is characterized in that: described contact is the spiral groove type contact being evenly equipped with multiple spiral slot on it around circumference, the outer end opening of each spiral slot extends on the periphery of contact, the number of spiral slot is identical with the number of spacing preiection, the number of the vertical slot section on the inner peripheral surface being arranged on pilot hole of locating slot equals the number of spiral slot, and the inner of each spiral slot extends to each vertical slot section one to one to form hatch frame.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520991278.XU CN205282373U (en) | 2015-12-03 | 2015-12-03 | Explosion chamber and contact means thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520991278.XU CN205282373U (en) | 2015-12-03 | 2015-12-03 | Explosion chamber and contact means thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205282373U true CN205282373U (en) | 2016-06-01 |
Family
ID=56066922
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520991278.XU Active CN205282373U (en) | 2015-12-03 | 2015-12-03 | Explosion chamber and contact means thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205282373U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105448582A (en) * | 2015-12-03 | 2016-03-30 | 天津平高智能电气有限公司 | Arc-extinguishing chamber and contact device thereof |
-
2015
- 2015-12-03 CN CN201520991278.XU patent/CN205282373U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105448582A (en) * | 2015-12-03 | 2016-03-30 | 天津平高智能电气有限公司 | Arc-extinguishing chamber and contact device thereof |
| CN105448582B (en) * | 2015-12-03 | 2019-02-01 | 天津平高智能电气有限公司 | A kind of arc-chutes and its contact apparatus |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |