CN109559940B - High-voltage direct-current relay convenient for movable iron core machining - Google Patents
High-voltage direct-current relay convenient for movable iron core machining Download PDFInfo
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- CN109559940B CN109559940B CN201811582977.3A CN201811582977A CN109559940B CN 109559940 B CN109559940 B CN 109559940B CN 201811582977 A CN201811582977 A CN 201811582977A CN 109559940 B CN109559940 B CN 109559940B
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- iron core
- movable iron
- push rod
- limiting
- movable
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- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 title claims abstract description 53
- 238000003754 machining Methods 0.000 title description 4
- 230000007704 transition Effects 0.000 claims description 5
- 238000000034 method Methods 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 3
- 238000005553 drilling Methods 0.000 description 3
- 239000000306 component Substances 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000003068 static effect Effects 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000008358 core component Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H50/00—Details of electromagnetic relays
- H01H50/64—Driving arrangements between movable part of magnetic circuit and contact
- H01H50/641—Driving arrangements between movable part of magnetic circuit and contact intermediate part performing a rectilinear movement
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- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
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Abstract
The invention discloses a high-voltage direct current relay convenient for processing a movable iron core, which comprises two fixed contacts, a movable contact piece, a push rod, a movable iron core, a counter-force spring and a coil, wherein two ends of the movable contact piece are in one-to-one correspondence with the two fixed contacts; the top of the push rod is connected with the movable contact piece, the movable iron core is sleeved outside the push rod and is matched with the coil, and the movable iron core is matched with the push rod to form a limiting structure; the counterforce spring is sleeved on the pushing rod; the pushing rod is provided with a supporting structure, and the bottom end of the counter-force spring is propped against the supporting structure. The invention uses the supporting structure to support the counter-force spring instead of the step surface in the movable iron core, so the invention has low requirement on the small hole depth of the inner hole of the movable iron core, namely, the small hole depth of the movable iron core can be made shallower, thereby facilitating the processing of the movable iron core and improving the processing precision of the movable iron core.
Description
Technical Field
The invention relates to a high-voltage direct-current relay, in particular to a high-voltage direct-current relay convenient for processing a movable iron core.
Background
The high-voltage direct-current relay is one of relays, and a core component in the high-voltage direct-current relay in the prior art generally comprises two static contacts, a movable contact piece, a push rod, a movable iron core, a counter-force spring and a coil, wherein two ends of the movable contact piece are in one-to-one correspondence with the two static contacts; the movable contact piece is connected at the push rod top, and movable iron core has the hole that supplies the push rod to pass, and this hole is including big hole and the aperture of upper and lower distribution, and reaction spring cover is established on the push rod, and reaction spring bottom supports on a step face that this big hole and aperture transition formed. In design, the installation height of the counter force spring is obtained through calculation, and in order to ensure the installation height of the counter force spring, a certain height of the step surface is required, namely a certain depth of the small hole is required. However, when the movable iron core drills an inner hole, if the small hole depth is too deep, the machining problems of low drilling speed, easiness in breaking of a drill bit, low perpendicularity accuracy of the hole and the like can occur, and the quality of a part is affected.
Disclosure of Invention
The invention provides a high-voltage direct current relay convenient for processing a movable iron core, which is characterized in that a supporting structure for supporting a counter-force spring is arranged on a pushing rod, and the defects of the high-voltage direct current relay in the prior art are overcome.
The technical scheme adopted for solving the technical problems is as follows: a high-voltage direct current relay convenient for processing a movable iron core comprises two fixed contacts, movable contact pieces, a push rod, a movable iron core, a counter-force spring and a coil, wherein two ends of the movable contact pieces are in one-to-one correspondence with the two fixed contacts; the top of the push rod is connected with the movable contact piece, the movable iron core is sleeved outside the push rod and is matched with the coil, and the movable iron core is matched with the push rod to form a limiting structure; the counterforce spring is sleeved on the pushing rod; the pushing rod is provided with a supporting structure, and the bottom end of the counter-force spring is propped against the supporting structure.
Further, the supporting structure is a supporting table arranged on the side face of the pushing rod.
Further, the supporting table is annular, and the outer diameter of the supporting table is larger than that of the counterforce spring.
Further, the supporting table and the pushing rod are integrally formed.
Further, the movable iron core is provided with an inner hole for the push rod to pass through, and the inner hole comprises a big hole and a small hole which are distributed up and down; the support structure is located above the aperture.
Further, the limiting structure comprises an upper limiting structure and a lower limiting structure, the upper limiting structure comprises an annular limiting table arranged on the side face of the pushing rod, and the bottom end of the limiting table is contacted with a step surface formed by transition of the large hole and the small hole; the lower limit structure is matched between the bottom end of the push rod and the movable iron core; the supporting structure is arranged on the limiting table.
Further, the lower limiting structure comprises a clamp spring, and the clamp spring is clamped at the bottom of the pushing rod and contacts against the bottom surface of the movable iron core; or the lower limit structure is a riveting structure, and the bottom of the pushing rod is fixed with the movable iron core through the riveting structure.
Further, the push rod passes through a gasket assembly positioned at the upper end of the coil, and the top end of the counter-force spring is abutted against the gasket assembly.
Further, the push rod passes through the movable contact piece, and the top of the push rod is provided with a clamp spring which is matched with the upper end of the movable contact piece; the push rod is also provided with a limiting part positioned below the movable contact piece, and a contact pressure spring is sleeved on the push rod and positioned between the movable contact piece and the limiting part.
Compared with the prior art, the invention has the following beneficial effects:
1. The support structure is arranged on the pushing rod, and the bottom end of the counter-force spring is propped against the support structure, so that the counter-force spring is supported by the support structure instead of the step surface in the movable iron core.
2. The support structure is preferably a support table and is integrally formed with the pushing rod, so that not only can the rigidity requirement be met, but also the assembly process can be prevented from being increased due to the addition of redundant parts.
The invention is described in further detail below with reference to the drawings and examples; the high-voltage direct-current relay which is convenient for processing the movable iron core is not limited to the embodiment.
Drawings
Fig. 1 is a cross-sectional view of a high voltage dc relay of the present invention;
FIG. 2 is a schematic diagram (cross-section) of the cooperation of the plunger, the push rod and the reaction spring according to the embodiment of the present invention;
FIG. 3 is a schematic diagram (cross section) of the cooperation of the plunger and the push rod and the reaction spring according to the second embodiment of the present invention;
Fig. 4 is a schematic diagram (cross section) of the cooperation of the plunger, the push rod and the reaction spring according to the third embodiment of the present invention.
Detailed Description
Example 1
Referring to fig. 1 and 2, the high-voltage dc relay with convenient movable iron core processing of the present invention includes two stationary contacts 1, a movable contact 3, a push rod 6, a movable iron core 7, a reaction spring 5 and a coil 8, wherein two ends of the movable contact 3 are in one-to-one correspondence with the two stationary contacts 1, specifically, two ends of the movable contact 3 may be planar end structures which do not drive the contacts and can be in contact fit with the corresponding stationary contacts, or end structures which drive the contacts and can be in contact fit with the corresponding stationary contacts through the movable contacts. The top of the push rod 6 is connected with the movable contact piece 3, the movable iron core 7 is sleeved outside the push rod 6 and is matched with the coil 8, and the movable iron core 7 and the push rod 6 are matched with a limiting structure; the reaction spring 5 is sleeved on the pushing rod 6; the pushing rod 6 is provided with a supporting structure, and the bottom end of the counter-force spring 5 is propped against the supporting structure.
In this embodiment, the support structure is a support table 61 disposed on a side surface of the pushing rod 6, the support table 61 is annular and integrally formed with the pushing rod 6, and an outer diameter of the support table 61 is larger than an outer diameter of the reaction spring 5. The top surface of the supporting table 61 is a plane, and the bottom end of the counter-force spring 5 is abutted against the top surface of the supporting table 61; the bottom surface of the support table 61 is a circular table surface with a wide upper part and a narrow lower part. The support structure is not limited to the support table 61, but in other embodiments may be a fitting that fits over the push rod and provides support for the reaction spring.
In this embodiment, the movable iron core 7 has an inner hole for the push rod 6 to pass through, the inner hole includes a large hole 71 and a small hole 72 distributed up and down, and the support table 61 is located above the small hole 72. The limit structure comprises an upper limit structure and a lower limit structure, and the synchronous movement of the push rod 6 and the movable iron core 7 is guaranteed through the upper limit structure and the lower limit structure, so that the relative movement of the push rod 6 and the movable iron core 7 is avoided. The upper limit structure specifically comprises an annular limit table 62 integrally formed on the side surface of the push rod 6, and the bottom end of the limit table 62 is contacted with a step surface formed by transition of the large hole 71 and the small hole 72; the lower limit structure is matched between the bottom end of the push rod 6 and the movable iron core 7. The supporting table 61 is disposed on a side surface of the limiting table 62, and a bottom surface of the supporting table 61 is higher than a bottom surface of the limiting table 62.
In this embodiment, the lower limiting structure includes a clip spring 9, where the clip spring 9 is clamped at the bottom of the push rod 6 and contacts against the bottom surface of the movable iron core 7. The lower limit structure is not limited to the snap spring 9, and in other embodiments, the lower limit structure is a riveted structure, and the bottom of the push rod is fixed with the movable iron core through the riveted structure.
In this embodiment, the pushing rod 6 passes through a gasket assembly 12 (including a gasket 122 and a guide plate 121) located at the upper end of the coil 8, and the top end of the reaction spring 5 abuts against the gasket assembly 12. The top of the pushing rod 6 is movably connected with the movable contact piece 3, specifically, the pushing rod 6 passes through the movable contact piece 3, the top of the pushing rod 6 is provided with a clamp spring 2, and the clamp spring 2 is matched with the upper end of the movable contact piece 3; the push rod 6 is further provided with a limiting part positioned below the movable contact piece 3, the limiting part is specifically realized by the limiting table 62, and a contact pressure spring 4 is sleeved on the push rod 6 and positioned between the bottom surface of the movable contact piece 3 and the top surface of the limiting table 62. The limiting part can also be realized by a limiting ring sleeved on the pushing rod.
In this embodiment, the high-voltage direct current relay of the present invention further includes a housing 15, an iron cup 11, a magnetic steel 13, an inner support cover 14, an upper cover 17, a fixing ring 16, an oilless bearing 10, a screw 18, an outgoing line 19, and other components, where each component is installed at a corresponding position.
The invention is characterized in that the supporting table 61 is directly arranged on the pushing rod 6 for supporting the counter force spring 5, and the step surface formed by the transition of the big hole 71 and the small hole 72 is not used for supporting. Therefore, the invention has low requirements on the depth of the small hole 72 of the inner hole of the movable iron core 7, namely, compared with the high-voltage direct current relay in the prior art, the depth of the small hole 72 of the movable iron core 7 can be made shallower, so that the problems of low drilling speed, easy breakage of a drill bit, low perpendicularity precision of the hole and the like are avoided, the drilling precision and efficiency are ensured, and the machining difficulty of the movable iron core 7 is reduced.
Example two
Referring to fig. 3, the present invention is a high voltage dc relay for facilitating the processing of a movable iron core, which is different from the first embodiment in that: the bottom surface of the supporting table 61 is a plane and is higher than the bottom surface of the limiting table 62.
Example III
Referring to fig. 4, the present invention is a high voltage dc relay for facilitating the processing of a movable iron core, which is different from the first embodiment in that: the bottom surface of the supporting table 61 is a plane and is flush with the bottom surface of the limiting table 62.
The above embodiment is only used for further illustrating a high-voltage direct current relay which is convenient for processing a movable iron core, but the invention is not limited to the embodiment, and any simple modification, equivalent variation and modification to the above embodiment according to the technical substance of the invention falls within the protection scope of the technical proposal of the invention.
Claims (6)
1. A high-voltage direct current relay convenient for processing a movable iron core comprises two fixed contacts, movable contact pieces, a push rod, a movable iron core, a counter-force spring and a coil, wherein two ends of the movable contact pieces are in one-to-one correspondence with the two fixed contacts; the top of the push rod is connected with the movable contact piece, the movable iron core is sleeved outside the push rod and is matched with the coil, and the movable iron core is matched with the push rod with a limiting structure so as to ensure that the push rod and the movable iron core synchronously move; the counterforce spring is sleeved on the pushing rod; the method is characterized in that: the pushing rod is provided with a supporting structure, and the bottom end of the counter-force spring is propped against the supporting structure; the movable iron core is provided with an inner hole for the push rod to pass through, and the inner hole comprises a big hole and a small hole which are distributed up and down; the support structure is positioned above the small hole;
the supporting structure is a supporting table arranged on the side face of the pushing rod; the supporting table and the pushing rod are integrally formed;
The limiting structure comprises an upper limiting structure and a lower limiting structure, the upper limiting structure comprises a limiting table arranged on the side face of the pushing rod, and the bottom end of the limiting table is contacted with a step surface formed by transition of the big hole and the small hole; the lower limit structure is matched between the bottom end of the push rod and the movable iron core.
2. The high voltage dc relay for facilitating moving core processing of claim 1, wherein: the supporting table is annular, and the outer diameter of the supporting table is larger than that of the counter-force spring.
3. The high voltage dc relay for facilitating moving core processing of claim 1, wherein: the limiting table is annular, and the supporting structure is arranged on the limiting table.
4. A high voltage dc relay for facilitating moving core processing as recited in claim 3, further comprising: the lower limiting structure comprises a clamp spring, and the clamp spring is clamped at the bottom of the pushing rod and contacts against the bottom surface of the movable iron core; or the lower limit structure is a riveting structure, and the bottom of the pushing rod is fixed with the movable iron core through the riveting structure.
5. The high voltage dc relay for facilitating moving core processing of claim 1, wherein: the push rod passes through a gasket assembly positioned at the upper end of the coil, and the top end of the counter-force spring is abutted against the gasket assembly.
6. The high voltage dc relay for facilitating moving core processing of claim 5, wherein: the push rod passes through the movable contact piece, and the top of the push rod is provided with a clamp spring which is matched with the upper end of the movable contact piece; the push rod is also provided with a limiting part positioned below the movable contact piece, and a contact pressure spring is sleeved on the push rod and positioned between the movable contact piece and the limiting part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811582977.3A CN109559940B (en) | 2018-12-24 | 2018-12-24 | High-voltage direct-current relay convenient for movable iron core machining |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811582977.3A CN109559940B (en) | 2018-12-24 | 2018-12-24 | High-voltage direct-current relay convenient for movable iron core machining |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109559940A CN109559940A (en) | 2019-04-02 |
| CN109559940B true CN109559940B (en) | 2024-08-02 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201811582977.3A Active CN109559940B (en) | 2018-12-24 | 2018-12-24 | High-voltage direct-current relay convenient for movable iron core machining |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102931031A (en) * | 2012-11-12 | 2013-02-13 | 湖州龙润汽车电机有限公司 | Integral type movable iron core structure of electromagnetic switch for novel energy car |
| CN107871643A (en) * | 2017-10-27 | 2018-04-03 | 浙江宏舟新能源科技有限公司 | A kind of HVDC relay and its assembly method using riveting dynamic iron core |
| CN209298030U (en) * | 2018-12-24 | 2019-08-23 | 浙江宏舟新能源科技有限公司 | A kind of high voltage direct current relay for facilitating dynamic iron core to process |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5856426B2 (en) * | 2011-10-07 | 2016-02-09 | 富士電機株式会社 | Contact device and electromagnetic contactor using the same |
| CN105529218B (en) * | 2014-12-25 | 2017-03-15 | 比亚迪股份有限公司 | A kind of relay pushing mechanism and relay |
| CN204497154U (en) * | 2014-12-25 | 2015-07-22 | 惠州比亚迪实业有限公司 | A kind of relay pushing mechanism and relay |
| CN105551896B (en) * | 2015-12-22 | 2018-07-27 | 厦门宏发电力电器有限公司 | A kind of contact assembly and its high voltage direct current relay |
| CN105719908B (en) * | 2016-04-29 | 2018-10-26 | 浙江英洛华新能源科技有限公司 | High voltage direct current relay dynamic iron core guiding mechanism |
| CN205723350U (en) * | 2016-04-29 | 2016-11-23 | 浙江英洛华新能源科技有限公司 | HVDC relay moves iron core guiding mechanism |
| CN107871644B (en) * | 2017-09-29 | 2020-08-28 | 浙江宏舟新能源科技有限公司 | High-voltage direct-current relay with high creepage distance and assembly method thereof |
| CN207441585U (en) * | 2017-09-29 | 2018-06-01 | 浙江宏舟新能源科技有限公司 | The high voltage direct current relay of high creepage distance |
| CN207441582U (en) * | 2017-10-27 | 2018-06-01 | 浙江宏舟新能源科技有限公司 | Using the high voltage direct current relay of riveting dynamic iron core |
-
2018
- 2018-12-24 CN CN201811582977.3A patent/CN109559940B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102931031A (en) * | 2012-11-12 | 2013-02-13 | 湖州龙润汽车电机有限公司 | Integral type movable iron core structure of electromagnetic switch for novel energy car |
| CN107871643A (en) * | 2017-10-27 | 2018-04-03 | 浙江宏舟新能源科技有限公司 | A kind of HVDC relay and its assembly method using riveting dynamic iron core |
| CN209298030U (en) * | 2018-12-24 | 2019-08-23 | 浙江宏舟新能源科技有限公司 | A kind of high voltage direct current relay for facilitating dynamic iron core to process |
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| CN109559940A (en) | 2019-04-02 |
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