CN109786178A - A kind of face terminals of high voltage direct current relay - Google Patents
A kind of face terminals of high voltage direct current relay Download PDFInfo
- Publication number
- CN109786178A CN109786178A CN201910129704.1A CN201910129704A CN109786178A CN 109786178 A CN109786178 A CN 109786178A CN 201910129704 A CN201910129704 A CN 201910129704A CN 109786178 A CN109786178 A CN 109786178A
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- Prior art keywords
- connecting pin
- stepped hole
- stage portion
- exit
- high voltage
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- 238000005219 brazing Methods 0.000 claims abstract description 22
- 238000005476 soldering Methods 0.000 claims abstract description 20
- 239000000919 ceramic Substances 0.000 claims abstract description 9
- 230000000694 effects Effects 0.000 claims abstract description 6
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 22
- 229910052802 copper Inorganic materials 0.000 claims description 22
- 239000010949 copper Substances 0.000 claims description 22
- 239000000463 material Substances 0.000 claims description 12
- 229910001220 stainless steel Inorganic materials 0.000 claims description 8
- 239000010935 stainless steel Substances 0.000 claims description 8
- 238000003780 insertion Methods 0.000 claims description 6
- 230000037431 insertion Effects 0.000 claims description 6
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical group [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 claims description 5
- 229910052709 silver Inorganic materials 0.000 claims description 5
- 239000004332 silver Substances 0.000 claims description 5
- 230000002093 peripheral effect Effects 0.000 claims description 3
- 238000000605 extraction Methods 0.000 claims description 2
- 235000008331 Pinus X rigitaeda Nutrition 0.000 description 2
- 235000011613 Pinus brutia Nutrition 0.000 description 2
- 241000018646 Pinus brutia Species 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000003292 glue Substances 0.000 description 2
- 206010037660 Pyrexia Diseases 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000017260 vegetative to reproductive phase transition of meristem Effects 0.000 description 1
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- Connections Arranged To Contact A Plurality Of Conductors (AREA)
Abstract
The present invention discloses a kind of face terminals of high voltage direct current relay, including connecting pin and the exit being arranged in relay ceramic shield, exit head is equipped with stepped hole, the lower part of connecting pin forms stage portion and can adaptedly be inserted into stepped hole, by being threadedly engaged connection between stepped hole and stage portion, and the brazing layer that can connect exit and connecting pin is equipped between the step surface that matches with stage portion of stepped hole, the soldering connection being threadedly engaged between the step surface that connection and stepped hole are matched with stage portion between stepped hole and stage portion forms the duplex connecting structure that locking anti-off effect can be played to connecting pin.The maximum torque that its connecting pin of the invention can bear is larger, the soldering connection being threadedly engaged between the step surface that connection and stepped hole are matched with stage portion between stepped hole and stage portion forms the duplex connecting structure that locking anti-off effect can be played to connecting pin, when brazing layer fails, it can prevent connecting pin from falling off, there is good use reliability.
Description
Technical field
The present invention relates to high voltage direct current relay technical fields, and in particular to a kind of load end of high voltage direct current relay
Son.
Background technique
Currently, the face terminals of high voltage direct current relay mainly have with flowering structure in the market: 1, the extraction of oxygen-free copper material
Hold direct vehicle that external thread form is made and forms external screw thread connecting pin, exit need to be brazed the ceramic shield in relay when production
On, when the oxygen-free copper hardness after high temperature brazing can reduce, the peak torque for causing external screw thread connecting pin can bear declines,
It is unable to satisfy torque demand when practical application, so as to cause face terminals sliding teeth or fracture, shortens the service life of relay.2,
The exit of oxygen-free copper material is fixed with screw using screw thread glue, and exit portion temperature is excessively high when due to work, and glue is easy old
Change, causes to fail.The connection of the face terminals connecting pin and exit in structure 2 is by opening up accommodating on exit simultaneously
Hole, then the lower end of connecting pin, which is inserted into accommodating hole, to be welded and fixed, due to being limited by overall height dimension, often exit is long
Spend shorter, the depth of accommodating hole cannot be made deep, so that the verticality of connecting pin and exit end face not can guarantee, when use
Connecting pin is easy to appear inclination, if though the verticality of connecting pin Yu exit end face can be improved by deepening accommodating hole depth, due to
Accommodating hole is deepened, the wall thickness thinned section on exit head increases, and the conductive cross-sectional area of exit, which becomes smaller, will lead to fever sternly
Weight.And it will cause soldering when the torque that external screw thread exit is born is more than the peak torque that it can bear when in use
Failure, there is the risk to fall off in connecting pin.
Summary of the invention
In view of the deficiencies of the prior art, the present invention provides a kind of face terminals of high voltage direct current relay, connecting pins
The maximum torque that can bear is larger, can improve exit hair while can guarantee connecting pin and exit end face squareness
The problem of heat, being threadedly engaged between the step surface that connection and stepped hole are matched with stage portion between stepped hole and stage portion
Soldering connection formed can to connecting pin rise locking anti-off effect duplex connecting structure, and brazing layer failure when, due to platform
Being threadedly engaged connection and can prevent connecting pin from falling off between rank hole and stage portion has good use reliability.
In order to achieve the above objectives, the present invention is achieved by the following technical solutions:
A kind of face terminals of high voltage direct current relay are drawn including connecting pin and the exit being arranged in relay ceramic shield
End head is equipped with stepped hole out, and the lower part of connecting pin forms stage portion and can adaptedly be inserted into stepped hole, stepped hole and platform
Be equipped with by being threadedly engaged connection between rank portion, and between the step surface that is matched with stage portion of stepped hole can connect exit and
The brazing layer of connecting pin, the step for being threadedly engaged connection and stepped hole and being matched with stage portion between stepped hole and stage portion
Soldering connection between face forms the duplex connecting structure that locking anti-off effect can be played to connecting pin.
Further, the exit is the exit of oxygen-free copper material, and connecting pin is the connecting pin of stainless steel material.
Further, the stepped hole includes the macropore and aperture of coaxial arrangement, and in big top and small bottom, and aperture be adapted to
By being threadedly engaged connection between the stage portion of insertion.
It further, is clearance fit between the peripheral wall of the macropore and the stage portion for being adapted to insertion.
Further, the depth of the aperture is greater than the depth of macropore.
Further, the connecting pin is substantially in the form of a column, and connecting pin is vertically connected at by the cooperation of stepped hole and stage portion
On exit.
Further, the top of the connecting pin is equipped with the external thread part that can be connected with copper bar.
Further, the brazing layer is silver-bearing copper brazing layer.
Further, the exit is fixed in relay ceramic shield by soldering.
The face terminals of high voltage direct current relay of the present invention, have the advantages that
1, stage portion passes through with being threadedly engaged between the step surface that connection and stepped hole are matched with stage portion for aperture
The duplex connecting structure that the soldering connection of brazing layer is formed, the stable connection for guaranteeing connecting pin and exit simultaneously can also be into
One step improves the peak torque that connecting pin can bear.
2, the stage portion of connecting pin, which uses to be threadedly engaged to connect with aperture, can guarantee that connecting pin is vertical with exit end face
Degree, guarantee will not occur connecting pin with respect to the inclined possibility of exit when in use, further improve use reliability.And work as
When the connection function failure of brazing layer, due to being threadedly engaged connection and can prevent from being connected to exit between stepped hole and stage portion
On connecting pin fall off, further improve use reliability.
3, external thread part can be cooperatively connected by nut and external copper bar, the platform matched due to stepped hole with stage portion
Pass through the soldering connection of brazing layer between terrace and fixation, brazing layer not only act as connection function, also acts as anti-rotation fixed function,
When assembling copper bar, the phenomenon that " with tight with pine " will not occur because of the structure for being double thread in connecting pin.
4, stepped hole is in big top and small bottom, both can guarantee connecting pin and exit end when matching with the stage portion of connecting pin
The verticality in face, while also reduce as far as possible causes the wall thickness of this section of exit thinning because opening up stepped hole on exit head
Reducing conductive cross-sectional area causes serious problem of generating heat.
5, exit be oxygen-free copper material exit, connecting pin be stainless steel material connecting pin, due to oxygen-free copper with
The coefficient of expansion of stainless steel is close, passes through silver-bearing copper brazing layer soldering connection between the step surface that stepped hole is matched with stage portion
Afterwards, without significant change, the peak torque that can guarantee that it can bear is not influenced the hardness of the connecting pin of stainless steel material by soldering.
Detailed description of the invention
Fig. 1 is the overall structure diagram that the face terminals of the embodiment of the present invention are assemblied on relay.
Fig. 2 is the structural schematic diagram of the face terminals of the embodiment of the present invention.
Fig. 3 is partial enlarged view at A in Fig. 2.
Label declaration:
1, connecting pin, 11, stage portion, 12, external thread part, 2, exit, 21, stepped hole, 211, macropore, 212, aperture,
3, relay ceramic shield, 4, brazing layer, 5, relay.
Specific embodiment
The invention will be further described with reference to the accompanying drawings and embodiments.
In the description of the present invention, it is to be understood that, term " on ", "lower", "front", "rear", "left", "right", "top",
The orientation or positional relationship of the instructions such as "bottom", "inner", "outside" is to be based on the orientation or positional relationship shown in the drawings, merely to just
In description the present invention and simplify description, rather than the device or element of indication or suggestion meaning must have a particular orientation, with
Specific orientation construction and operation, therefore be not considered as limiting the invention.
Please refer to attached drawing 1, attached drawing 2, attached drawing 3, in the present embodiment, a kind of face terminals of high voltage direct current relay, including
Connecting pin 1 and the exit 2 being arranged in the relay ceramic shield 3 of relay 5, it is preferable that exit 2 is fixed on by soldering
In relay ceramic shield 3,2 head of exit is equipped with stepped hole 21, and the lower part of connecting pin 1 forms stage portion 11 and can be adaptedly
It is inserted into stepped hole 21, by being threadedly engaged connection, and stepped hole 21 and 11 phase of stage portion between stepped hole 21 and stage portion 11
The brazing layer 4 that can connect exit 2 Yu connecting pin 1 is equipped between the step surface of cooperation, between stepped hole 21 and stage portion 11
Be threadedly engaged connection and step surface that stepped hole 21 is matched with stage portion 11 between soldering connection formation can be to connecting pin 1
The duplex connecting structure for playing locking anti-off effect ensure that the stable connection of connecting pin 1 and exit 2 and using reliable
Property.
Please referring to attached drawing 2, attached drawing 3, in the present embodiment, stepped hole 21 includes the macropore 211 and aperture 212 of coaxial arrangement,
And it is in big top and small bottom, and by being threadedly engaged connection between aperture 212 and the stage portion 11 for being adapted to insertion.In the present embodiment,
It preferably, is clearance fit between the peripheral wall of macropore 211 and the stage portion 11 for being adapted to insertion.In the present embodiment, it is preferable that aperture
212 depth is greater than the depth of macropore 211.In the present embodiment, it is preferable that connecting pin 1 is substantially in the form of a column, in the present embodiment, even
It connects end 1 to be in the form of a column, connecting pin 1 is vertically connected on exit 2 by the cooperation of stepped hole 21 and stage portion 11.The present embodiment
In, it is preferable that the top of connecting pin 1 is equipped with the external thread part 12 that can be connected with copper bar.In the present embodiment, the platform of connecting pin 1
Rank portion 11, using the verticality for connecting certifiable connecting pin 1 and 2 end face of exit is threadedly engaged, guarantees using with aperture 212
Connecting pin 1 occurs for Shi Buhui with respect to the inclined possibility of exit 2, further improves use reliability.And stage portion 11 with it is small
Hole 212 be threadedly engaged connection and step surface that stepped hole 21 is matched with stage portion 11 between pass through the soldering of brazing layer 4
The duplex connecting structure formed is connected, in the stable connection for the guaranteeing connecting pin 1 and exit 2 also company of can be further improved simultaneously
Connect the peak torque that end 1 can bear.In the present embodiment, external thread part 12 can be cooperatively connected by nut and external copper bar,
By the soldering connection of brazing layer 4 and fixation between the step surface matched due to stepped hole 21 with stage portion 11, brazing layer 4 is not
Only play connection function, also act as anti-rotation fixed function, when assembling copper bar connecting pin 1 will not because of the structure for being double thread and
There is the phenomenon that " with tight with pine ", i.e., copper bar can be screwed on external thread part 12 and be unscrewed, and the stage portion 11 of connecting pin 1 is always
It is fixedly connected in the stepped hole 21 of exit 2 and motionless.And when the failure of the connection function of brazing layer 4, due to stepped hole 21
Being threadedly engaged between stage portion 11, which connects, can prevent the connecting pin being connected on exit 21 from falling off, and further improving makes
Use reliability.And in the present embodiment, stepped hole 21 is in big top and small bottom, can protect when matching with the stage portion 11 of connecting pin 1
The verticality of connecting pin 1 and 2 end face of exit is demonstrate,proved, while also being reduced as far as possible because opening up stepped hole 21 on 2 head of exit
The thinning conductive cross-sectional area that reduces of the wall thickness of this section of exit 2 is caused to cause serious problem of generating heat.
Attached drawing 2, attached drawing 3 are please referred to, in the present embodiment, it is preferable that exit 2 is the exit of oxygen-free copper material, connection
End 1 is the connecting pin of stainless steel material, and brazing layer 4 is silver-bearing copper brazing layer.Since the coefficient of expansion of oxygen-free copper and stainless steel is close,
After passing through silver-bearing copper brazing layer soldering connection between the step surface that stepped hole 21 is matched with stage portion 11, the connection of stainless steel material
Without significant change, the peak torque that can guarantee that it can bear is not influenced the hardness at end 1 by soldering.
The above, embodiment are merely illustrative of the technical solution of the present invention, rather than its limitations；Although referring to aforementioned reality
Applying example, invention is explained in detail, those skilled in the art should understand that: it still can be to aforementioned reality
It applies technical solution documented by example to modify, or some technical characteristics therein is equivalently replaced；And these are modified
Or replacement, so that corresponding technical solution is detached from the spirit and scope of technical solution of the embodiment of the present invention, therefore this field is common
Technical staff's every other embodiment obtained without making creative work, belongs to protection model of the invention
It encloses.
Claims (9)
1. a kind of face terminals of high voltage direct current relay, it is characterised in that: including connecting pin (1) and setting in relay ceramics
The exit (2) on (3) is covered, exit (2) head is equipped with stepped hole (21), and stage portion is formed at the lower part of connecting pin (1)
(11) it and can adaptedly be inserted into stepped hole (21), by being threadedly engaged connection between stepped hole (21) and stage portion (11), and
The soldering that can connect exit (2) Yu connecting pin (1) is equipped between the step surface that stepped hole (21) is matched with stage portion (11)
Layer (4) is threadedly engaged connection and stepped hole (21) and stage portion (11) matching between stepped hole (21) and stage portion (11)
Soldering connection between the step surface of conjunction forms the duplex connecting structure that locking anti-off effect can be played to connecting pin (1).
2. the face terminals of high voltage direct current relay according to claim 1, it is characterised in that: the exit (2) is
The exit of oxygen-free copper material, connecting pin (1) are the connecting pin of stainless steel material.
3. the face terminals of high voltage direct current relay according to claim 1, it is characterised in that: stepped hole (21) packet
Include the macropore (211) and aperture (212) of coaxial arrangement, and in big top and small bottom, and aperture (212) be adapted to insertion stage portion
(11) by being threadedly engaged connection between.
4. the face terminals of high voltage direct current relay according to claim 3, it is characterised in that: the macropore (211)
It is clearance fit between peripheral wall and the stage portion (11) for being adapted to insertion.
5. the face terminals of high voltage direct current relay according to claim 3, it is characterised in that: the aperture (212)
Depth is greater than the depth of macropore (211).
6. the face terminals for the high voltage direct current relay stated according to claim 1, it is characterised in that: the connecting pin (1) is substantially
It is in the form of a column, connecting pin (1) is vertically connected on exit (2) by the cooperation of stepped hole (21) and stage portion (11).
7. according to the face terminals for the high voltage direct current relay that claim 6 is stated, it is characterised in that: the connecting pin (1) it is upper
Portion is equipped with the external thread part (12) that can be connected with copper bar.
8. the face terminals of high voltage direct current relay according to any one of claims 1 to 7, it is characterised in that: the soldering
Layer (4) is silver-bearing copper brazing layer.
9. the face terminals of high voltage direct current relay according to any one of claims 1 to 7, it is characterised in that: the extraction
End (2) is fixed on relay ceramic shield (3) by soldering.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910129704.1A CN109786178A (en) | 2019-02-21 | 2019-02-21 | A kind of face terminals of high voltage direct current relay |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910129704.1A CN109786178A (en) | 2019-02-21 | 2019-02-21 | A kind of face terminals of high voltage direct current relay |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109786178A true CN109786178A (en) | 2019-05-21 |
Family
ID=66485741
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910129704.1A Pending CN109786178A (en) | 2019-02-21 | 2019-02-21 | A kind of face terminals of high voltage direct current relay |
Country Status (1)
| Country | Link |
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| CN (1) | CN109786178A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114083240A (en) * | 2021-11-29 | 2022-02-25 | 贵州天义电器有限责任公司 | Welding method for two-body conductive block |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005038705A (en) * | 2003-07-15 | 2005-02-10 | Matsushita Electric Works Ltd | Sealed contact device |
| CN103258689A (en) * | 2008-03-19 | 2013-08-21 | 松下电器产业株式会社 | Contact device |
| CN207377948U (en) * | 2017-10-17 | 2018-05-18 | 中国长江动力集团有限公司 | A kind of connection pore structure and cast member |
| US20180286614A1 (en) * | 2015-10-02 | 2018-10-04 | Schott Japan Corporation | Hermetic Terminal for High-Capacity Relay and Contact Device for High-Capacity Relay Including the Hermetic Terminal |
| CN209434111U (en) * | 2019-02-21 | 2019-09-24 | 厦门宏发电力电器有限公司 | A kind of face terminals of high voltage direct current relay |
-
2019
- 2019-02-21 CN CN201910129704.1A patent/CN109786178A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005038705A (en) * | 2003-07-15 | 2005-02-10 | Matsushita Electric Works Ltd | Sealed contact device |
| CN103258689A (en) * | 2008-03-19 | 2013-08-21 | 松下电器产业株式会社 | Contact device |
| US20180286614A1 (en) * | 2015-10-02 | 2018-10-04 | Schott Japan Corporation | Hermetic Terminal for High-Capacity Relay and Contact Device for High-Capacity Relay Including the Hermetic Terminal |
| CN207377948U (en) * | 2017-10-17 | 2018-05-18 | 中国长江动力集团有限公司 | A kind of connection pore structure and cast member |
| CN209434111U (en) * | 2019-02-21 | 2019-09-24 | 厦门宏发电力电器有限公司 | A kind of face terminals of high voltage direct current relay |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114083240A (en) * | 2021-11-29 | 2022-02-25 | 贵州天义电器有限责任公司 | Welding method for two-body conductive block |
| CN114083240B (en) * | 2021-11-29 | 2024-03-01 | 贵州天义电器有限责任公司 | Welding method for two-body conductive block |
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| SE01 | Entry into force of request for substantive examination | ||
| CB03 | Change of inventor or designer information |
Inventor after: Zhong Shuming Inventor after: Zhong Hao Inventor after: Li Minzhi Inventor after: Wu Zhuxiong Inventor before: Zhong Shuming Inventor before: Zhong Hao Inventor before: Li Minzhi Inventor before: Wu Zhuxiong |
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