CN215527608U - Series magnetic circuit structure of contactor - Google Patents
Series magnetic circuit structure of contactor Download PDFInfo
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- CN215527608U CN215527608U CN202121479403.0U CN202121479403U CN215527608U CN 215527608 U CN215527608 U CN 215527608U CN 202121479403 U CN202121479403 U CN 202121479403U CN 215527608 U CN215527608 U CN 215527608U
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- iron core
- permanent magnet
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- yoke
- contactor
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Abstract
A series magnetic circuit structure of a contactor is characterized in that: the permanent magnet and static iron core group, the static iron core group and the static iron core group are corresponding, the coil assembly is also included, the main static iron core is arranged in the cavity of the coil assembly, the magnetic yoke group is arranged at the position of two end sides of the main static iron core, and the permanent magnet group or upper magnetic yoke are fixedly installed in a laminating mode; the movable iron core group and the static iron core group are arranged between the magnetic yoke groups. This series magnetic circuit structure is through series connection magnetic circuit's mode, unites a plurality of contactors into one, has realized the control of single contactor to a plurality of states, through the change of electric current, realizes the switching of contactor function.
Description
Technical Field
The utility model belongs to the technical field of contactors, and particularly relates to a series magnetic circuit structure of a contactor.
Background
Direct current contactor universal use fills fields such as electric pile in new energy automobile, and the electric current range is 50 ~ 300A or higher, and the electric current then is between 500 ~ 900V. With the rapid development of the industry, the rated voltage of the direct current contactor is required to be higher and higher in the market. Because the volume of the direct current contactor is determined by rated current and the contact is in a closed space, the most important factor influencing the service life of the direct current contactor is the switching-on voltage, the higher the voltage is, the higher the energy of the electric arc is, the more serious the ablation on the contact is, and the service life of the contactor is directly influenced. In the market, in order to perform multi-state control on products by using direct current contactors, two or more contactors are generally used in a superposition and matching manner, but the mode of using two or more contactors in a superposition and matching manner has high cost and large volume, and is difficult to popularize and use in a large area; and adopt combination contactor to realize the multi-state control of product, because the traditional structure that combination contactor still adopted, can't effectively reduce the volume, combination contactor mostly is ceramic direct current contactor simultaneously, and ceramic direct current contactor production technology is complicated, and the cost is higher.
SUMMERY OF THE UTILITY MODEL
The utility model aims to overcome the defects of large volume and high cost in the prior art that two or more contactors are superposed and combined, and provides a series magnetic circuit structure of a contactor.
Technical scheme
In order to achieve the above technical object, the present invention provides a series magnetic circuit structure of a contactor, comprising: the permanent magnet and static iron core group, the static iron core group and the static iron core group are corresponding, the coil assembly is also included, the main static iron core is arranged in the cavity of the coil assembly, the magnetic yoke group is arranged at the position of two end sides of the main static iron core, and the permanent magnet group or upper magnetic yoke are fixedly installed in a laminating mode; the movable iron core group and the static iron core group are arranged between the magnetic yoke groups.
Further, the number of the coil assemblies is at least one, and the number of the main static iron cores corresponds to that of the coil assemblies.
Further, yoke group includes upper yoke and lower yoke, quiet iron core group with move the iron core group and arrange the spatial position between upper yoke and the lower yoke, quiet iron core group is including quiet iron core one and quiet iron core two, move the iron core group including moving iron core one and moving iron core two, quiet iron core one and quiet iron core two are located and are close to upper yoke one side, move iron core one and move the iron core two and be located and be close to lower yoke one side.
Further, the permanent magnet group comprises a first permanent magnet and a second permanent magnet, and the first permanent magnet and the second permanent magnet are fixedly mounted with the first static iron core and the second static iron core in a laminating manner.
Further, the first permanent magnet and the second permanent magnet have opposite magnetic pole directions.
Further, the first permanent magnet and the second permanent magnet are fixedly mounted on the corresponding first static iron core and the corresponding second static iron core to generate magnetic fields which can correspond to the magnetic fields generated after the coil assembly is electrified.
Furthermore, the N static iron core groups and the corresponding movable iron core group arrays are arranged between the magnetic yoke groups, the corresponding permanent magnet groups are fixedly arranged with the static iron core groups or the upper magnetic yoke in a laminating manner, and N is more than or equal to 2.
Advantageous effects
According to the series magnetic circuit structure of the contactor, the plurality of contactors are combined into a whole in a series magnetic circuit system mode, so that the control of a single contactor on a plurality of states is realized, and the function switching of the contactor is realized through the change of current.
Drawings
Fig. 1 is a structural view of a contactor series magnetic circuit system according to embodiment 1 of the present invention;
FIG. 2 is a schematic view of the system state and magnetic circuit when the coil is not energized in accordance with embodiment 1 of the present invention;
FIG. 3 is a schematic diagram of the system state and magnetic circuit when the coil is applied with a forward pulse in the embodiment 1 of the present invention;
FIG. 4 is a schematic view of the system state and magnetic circuit at the time when the forward pulse disappears in the coil in embodiment 1 of the present invention;
FIG. 5 is a schematic view of the system state and magnetic circuit when reverse pulse is applied to the coil in the embodiment 1 of the present invention;
FIG. 6 is a schematic view showing a state of a system and a magnetic circuit when a reverse pulse disappears in a coil according to embodiment 1 of the present invention;
FIG. 7 is a schematic view showing the installation of N permanent magnet groups, a movable iron core group and a stationary iron core group in embodiment 1 of the present invention;
fig. 8 is a structural view of a contactor series magnetic circuit system according to embodiment 2 of the present invention;
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "inside", "outside", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, which are only for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and operate, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted" and "connected" are to be interpreted broadly, e.g., as being either fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
The present invention will be described in further detail below with reference to specific embodiments and with reference to the attached drawings.
Example 1
As shown in fig. 1, a series magnetic circuit structure of a contactor comprises a permanent magnet group 1, a movable iron core group 2 and a static iron core group 3, wherein the movable iron core group 2 corresponds to the static iron core group 3, the series magnetic circuit structure further comprises a coil assembly 4, a main static iron core 5 is arranged in a cavity of the coil assembly 4, a magnetic yoke group 6 is arranged at the position of two end sides of the main static iron core 5, and the permanent magnet group 1 and the static iron core group 3 are fixedly installed; the moving iron core group 2 and the static iron core group 3 are arranged between the magnetic yoke groups 4.
Specifically, the number of the coil assemblies 4 is at least one, and the number of the main stationary cores 5 corresponds to the number of the coil assemblies 4. The number of the coil blocks 4 is one in this embodiment. The yoke assembly 6 includes an upper yoke 6a and a lower yoke 6 b. The quiet iron core group 3 with move iron core group 2 and arrange the spatial position between upper yoke 6a and lower yoke 6b, quiet iron core group 3 includes quiet iron core one 3a and quiet iron core two 3b, move iron core group 2 including moving iron core one 2a and moving iron core two 2b, quiet iron core one 3a and quiet iron core two 3b are located and are close to upper yoke 6a one side, move iron core one 2a and move iron core two 2b and be located and be close to lower yoke 6b one side. The permanent magnet group 1 comprises a first permanent magnet 1a and a second permanent magnet 1b, and the first permanent magnet 1a and the second permanent magnet 1b are fixedly installed with a first static iron core 3a and a second static iron core 3b which correspond to each other. The magnetic pole directions of the first permanent magnet 1a and the second permanent magnet 1b are opposite. The first permanent magnet 1a and the second permanent magnet 1b are fixedly arranged on the first static iron core 3a and the second static iron core 3b which correspond to each other, and magnetic fields generated by the coil assembly 4 after being electrified can correspond to the magnetic fields.
As shown in fig. 7, in this embodiment, N static iron core groups 3 and corresponding moving iron core groups 2 are arranged between the magnetic yoke groups 4, and the corresponding permanent magnet groups 1 and the static iron core groups 3 are fixedly attached together in an attaching manner, that is, the magnetic circuits of the permanent magnet groups 1 and the static iron core groups 3 form a series connection form (a magnetic flux Φ 1 or Φ 2 shown in fig. 2), N is greater than or equal to 2, wherein the N permanent magnet groups 1, the static iron core groups 3 and the corresponding moving iron core groups 2 share the coil assembly 4, by adopting the structure, not only can the magnetic field force be enhanced to overcome the spring resistance of the contact, but also a plurality of external circuits can be connected, and the external circuits can be independently controlled. When N is more than or equal to 2, the N magnetic circuits are in parallel connection, as shown in figures 3 and 5, phi 3 and phi 4 are parallel magnetic circuits, or phi 5 and phi 6 are parallel magnetic circuits. In this embodiment, the N permanent magnet groups 1, the stationary iron core groups 3, and the corresponding movable iron core groups 2 may be disposed on two sides of the coil assembly 4 in a linear array, or disposed in an annular array in the circumferential direction of the coil assembly 4.
The working process of the embodiment is as follows: as shown in fig. 2, when the coil assembly 4 is not energized, a magnetic flux phi 1 and a magnetic flux phi 2 are generated by the permanent magnet I1 a and the permanent magnet II 1b in the contactor, and the movable iron core I2 a and the static iron core I3 a are kept in a separated state and are not contacted with each other; the movable iron core II 2b and the static iron core II 3b are also kept in a separated state and are not contacted with each other;
as shown in fig. 3, after a positive pulse is applied to the coil assembly 4, a magnetic flux phi 3 with the same direction as the magnetic flux phi 1 and a magnetic flux phi 4 with the opposite direction to the magnetic flux phi 2 are generated, and under the combined action of the magnetic flux phi 1 and the magnetic flux phi 3 in the same direction, the movable iron core 2a is attracted and moves towards the static iron core 3 a; meanwhile, the magnetic flux phi 2 and the magnetic flux phi 4 are in reverse interaction, and the movable iron core 2b cannot be attracted and keeps still;
as shown in fig. 4, when the positive pulse passing through the coil assembly 4 disappears, the magnetic flux Φ 3 and the magnetic flux Φ 4 disappear, the movable iron core 2a cannot keep the attraction state, the movable iron core 2a resets, and the movable iron core 2b still keeps still.
As shown in fig. 5, after the pulse in the coil assembly 4 is conducted in the opposite direction, a magnetic flux phi 5 in the same direction as the magnetic flux phi 2 and a magnetic flux phi 6 in the opposite direction to the magnetic flux phi 1 are generated, and under the combined action of the magnetic flux phi 2 and the magnetic flux phi 5 in the same direction, the movable iron core 2b is attracted and moves towards the static iron core 3 b; the magnetic flux phi 1 and the magnetic flux phi 6 are in reverse interaction, and the movable iron core I2 a cannot be attracted and keeps still;
as shown in fig. 6, when the reverse pulse passing through the coil assembly 4 disappears, the magnetic flux Φ 5 and the magnetic flux Φ 6 disappear, the movable iron core 2b cannot keep the attraction state, the movable iron core 2b resets, and the movable iron core 2a still keeps still.
Example 2
As shown in fig. 8, in this embodiment, the permanent magnet assembly 1 is fixedly mounted on the upper magnetic yoke 6a, in order to enhance the magnetic field force and overcome the contact spring resistance, and simultaneously, to connect with a plurality of external circuits and independently control the external circuits, in this embodiment, N static iron core assemblies 3 and corresponding moving iron core assembly 2 arrays are mounted between the magnetic yoke assemblies 4, the corresponding permanent magnet assembly 1 and the upper magnetic yoke 6a are fixedly mounted in a laminating manner, and other structures and working principles are the same as those of embodiment 1.
According to the series magnetic circuit structure of the contactor, provided by the embodiment of the utility model, a plurality of contactors are combined into one through a series magnetic circuit system, so that the control of a single contactor on a plurality of states is realized, and the function switching of the contactor is realized through the change of current.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the utility model has been described in detail and with reference to the foregoing embodiments, those skilled in the art will appreciate that; the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.
Claims (7)
1. A series magnetic circuit structure of a contactor is characterized in that: it includes permanent magnet group, moves iron core group and quiet iron core group, move iron core group with quiet iron core group is corresponding, still includes coil pack, and main quiet iron core lays in coil pack's cavity, yoke group lays the both ends side position of main quiet iron core, permanent magnet group with quiet iron core group or last yoke laminating formula fixed mounting, move iron core group with quiet iron core group installs between the yoke group.
2. A series magnetic circuit structure of a contactor as claimed in claim 1, wherein: the number of the coil assemblies is at least one, and the number of the main static iron cores corresponds to that of the coil assemblies.
3. A series magnetic circuit structure of a contactor as claimed in claim 1, wherein: the yoke group includes yoke and lower yoke, quiet iron core group with move the iron core group and arrange spatial position between yoke and the lower yoke, quiet iron core group is including quiet iron core one and quiet iron core two, move the iron core group including moving iron core one and moving iron core two, quiet iron core one and quiet iron core are two in being close to go up yoke one side, move iron core one and move the iron core two in being close to lower yoke one side.
4. A series magnetic circuit structure of a contactor as claimed in claim 1, wherein: the permanent magnet group comprises a first permanent magnet and a second permanent magnet, and the first permanent magnet and the second permanent magnet are fixedly mounted with the first static iron core and the second static iron core in a laminating manner.
5. A series magnetic circuit structure of a contactor as claimed in claim 1, wherein: the magnetic pole directions of the first permanent magnet and the second permanent magnet are opposite.
6. A series magnetic circuit structure of a contactor as claimed in claim 1, wherein: the first permanent magnet and the second permanent magnet are fixedly arranged on the corresponding first static iron core and the corresponding second static iron core, and magnetic fields generated by the first permanent magnet and the second permanent magnet correspond to magnetic fields generated by the coil assembly after being electrified.
7. A series magnetic circuit structure of a contactor as claimed in claim 1, wherein: the N static iron core groups and the corresponding movable iron core group arrays are arranged between the magnetic yoke groups, the corresponding permanent magnet groups are fixedly arranged together with the static iron core groups or the upper magnetic yoke in a laminating manner, and N is more than or equal to 2.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202121479403.0U CN215527608U (en) | 2021-06-30 | 2021-06-30 | Series magnetic circuit structure of contactor |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121479403.0U CN215527608U (en) | 2021-06-30 | 2021-06-30 | Series magnetic circuit structure of contactor |
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| CN215527608U true CN215527608U (en) | 2022-01-14 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024041190A1 (en) * | 2022-08-26 | 2024-02-29 | 华为技术有限公司 | Linear-motion electromagnetic mechanism, relay, power distribution box, and communication device |
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2021
- 2021-06-30 CN CN202121479403.0U patent/CN215527608U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024041190A1 (en) * | 2022-08-26 | 2024-02-29 | 华为技术有限公司 | Linear-motion electromagnetic mechanism, relay, power distribution box, and communication device |
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