CN216353639U - Magnetizing clamp of magnetic latching relay - Google Patents
Magnetizing clamp of magnetic latching relay Download PDFInfo
- Publication number
- CN216353639U CN216353639U CN202122844574.5U CN202122844574U CN216353639U CN 216353639 U CN216353639 U CN 216353639U CN 202122844574 U CN202122844574 U CN 202122844574U CN 216353639 U CN216353639 U CN 216353639U
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- magnetic
- magnetizing
- pole
- magnetizer
- relay
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- 229910000831 Steel Inorganic materials 0.000 claims abstract description 50
- 239000010959 steel Substances 0.000 claims abstract description 50
- 238000000034 method Methods 0.000 claims abstract description 12
- 230000005415 magnetization Effects 0.000 claims description 22
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 8
- 239000000463 material Substances 0.000 claims description 6
- 229910000838 Al alloy Inorganic materials 0.000 claims description 5
- 239000000956 alloy Substances 0.000 claims description 4
- 229910052742 iron Inorganic materials 0.000 claims description 4
- DMFGNRRURHSENX-UHFFFAOYSA-N beryllium copper Chemical compound [Be].[Cu] DMFGNRRURHSENX-UHFFFAOYSA-N 0.000 claims description 3
- 238000006243 chemical reaction Methods 0.000 claims description 3
- 239000010935 stainless steel Substances 0.000 claims description 3
- 229910001220 stainless steel Inorganic materials 0.000 claims description 3
- 238000001179 sorption measurement Methods 0.000 claims description 2
- 230000006698 induction Effects 0.000 abstract description 6
- 230000005347 demagnetization Effects 0.000 description 9
- 230000000694 effects Effects 0.000 description 6
- 238000013461 design Methods 0.000 description 3
- 238000002955 isolation Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000035699 permeability Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000004146 energy storage Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 229910001004 magnetic alloy Inorganic materials 0.000 description 1
- 230000005381 magnetic domain Effects 0.000 description 1
- 230000005389 magnetism Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
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Abstract
The utility model discloses a magnetizing clamp of a magnetic latching relay, which comprises a positioning block, a middle magnetizer and an end-face magnetizer. The fixture is provided with a middle magnetizer and an end-face magnetizer which are used for being respectively attached to target magnetic steel, the S pole and the N pole of the target magnetic steel are positioned, in the process of magnetizing (demagnetizing), the electromagnetic part of the target relay is magnetized after the end-face magnetizer and the pole shoe are attached to the pole faces and positioned, 2 closed magnetic loops can be formed with the middle magnetizer, the middle magnetic pole can be accurately positioned in the middle of the magnetic steel after magnetizing, the magnetic induction intensity of the end magnetic pole is the same, and the three-pole magnetizing can be accurately realized without adjusting the position of the middle magnetic pole-the S pole of the magnetic steel in the charged relay.
Description
Technical Field
The utility model relates to a magnetizing clamp of a magnetic latching relay.
Background
With the great increase of the demand of domestic aerospace users on the magnetic latching relay in recent years, the vigorous development of the type of relay is promoted, and the magnetic steel in the electromagnetic part needs to be magnetized in the production and manufacturing process of the magnetic latching relay.
Due to the assembly process requirements of the magnetic latching relay, the strip-shaped magnetic steel which needs three-pole magnetization is not suitable for magnetization of the single magnetic steel, and the magnetization and demagnetization processes are generally carried out when the magnetic latching relay is assembled to an electromagnetic part.
The magnetizing fixture used in the prior art only positions the relay in the middle of the magnetizing coil, the position of the magnetic steel in the relay is just positioned in the middle of the symmetrical magnetizing and demagnetizing magnetic fields through the adjusting screw rod, the adjusting screw rod needs to be adjusted before the product is formally assembled, the nut on the fixing screw rod fixes the position after the product parameter requirements are met, the relay is magnetized completely in the large magnetic field generated by the magnetizing coil, the magnetizing effect is easily influenced by magnetic field fluctuation and environmental factors, and the consistency of the product after magnetizing is relatively poor.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a magnetizing clamp of a magnetic latching relay, which can realize three-pole magnetizing accurately without adjusting the position of the middle magnetic pole-S pole of the magnetic steel in the charged relay by utilizing the clamp to charge and demagnetize the electromagnetic part of the relay, effectively solves the problem that the occupation ratio of the middle magnetic pole-S pole of the magnetic steel in the charged relay is completely determined by the magnetic field generated by a magnetizing coil during magnetizing and demagnetizing, and has better consistency of the magnetic induction intensity of the magnetic poles at two end surfaces of the magnetic steel after magnetizing.
In order to achieve the object of the present invention, the magnetizing jig of a magnetic latching relay according to the present invention comprises:
a positioning block configured to position the target relay electromagnetic portion;
the middle magnetizer is configured and arranged on the positioning block and used for positioning the S pole position of the target magnetic steel and the ratio of the S pole on the target magnetic steel; and
and the end face magnetizer is configured and arranged on the positioning block and is used for positioning the N pole position of the target magnetic steel.
In some embodiments, the present invention provides a clamp further comprising a resilient stop plate mounted on the locating block; the elastic stop plate is used for clamping and fixing the electromagnetic part of the target relay during magnetization, so that residual magnetic reaction of target magnetic steel in the magnetization process is prevented from separating the electromagnetic part of the target relay from the magnetization position, and meanwhile, the adsorption of redundant materials is avoided.
In some embodiments, the clamping force of the elastic stop plate is not less than 1N, and the material is an elastic stainless steel band or extra hard beryllium copper.
In some embodiments, the present invention provides a clip further comprising a handle. The setting of handle is used for magnetizing the demagnetization process and puts into the anchor clamps body and take out the demagnetization coil of magnetizing, also plays the effect of location to the anchor clamps body simultaneously.
In some embodiments, the positioning block material is a non-magnetic aluminum alloy material. The non-magnetic aluminum alloy material is utilized to position the electromagnetic part of the target relay and play a certain magnetic isolation role at the same time, so that the formation of an effective magnetic circuit is ensured.
In some embodiments, the intermediate magnetizer and/or the end magnetizer are electromagnetic pure iron DT4C, which improves magnetic permeability.
In some embodiments, the target relay electromagnetic part is a differential electromagnetic part, and the magnetic steel installed in the target relay electromagnetic part is an elongated magnetic steel.
The clamp provided by the utility model has the beneficial effects that at least:
1) the fixture is provided with a middle magnetizer and an end-face magnetizer which are used for being respectively attached to target magnetic steel, the S pole and the N pole of the target magnetic steel are positioned, in the process of magnetizing (demagnetizing), the electromagnetic part of a charged relay is magnetized after the end-face magnetizer and the pole shoe are attached to the pole faces and positioned, 2 closed magnetic loops can be formed with the middle magnetizer, the middle magnetic pole-S pole of the magnetic steel in the charged relay can be accurately positioned in the middle of the magnetic steel after the magnetization, the magnetic induction intensity of the end magnetic pole is the same, and the three-pole magnetization can be accurately realized without adjusting the position of the middle magnetic pole-S pole of the magnetic steel in the charged relay.
2) The width of the middle magnetizer of the clamp can be controlled according to the design requirement of a product, and is not completely influenced by the magnetic field trend of the magnetizing coil, so that the problem that the width of the middle magnetic pole-S pole of the magnetic steel in the charged relay is completely determined by the magnetic field generated by the magnetizing coil during magnetizing and demagnetizing is effectively solved.
3) The existing fixture is magnetized in a large magnetic field of a magnetizing coil, compared with the magnetizing of a magnetic circuit formed by magnetizers (soft magnets) used by the magnetizing fixture, the air reluctance is extremely large, the energy consumed by the magnetic steel to be charged to the same strength is larger, and the required magnetizing voltage is also larger, so that the magnetizing of the electromagnetic part of the relay by using the fixture can effectively reduce the magnetizing voltage.
4) By using the fixture, the measurement proportion of the middle magnetic pole-S pole of the magnetic steel in the charged relay can be controlled according to the design requirements of products, the influence of the magnetic field trend of the magnetizing coil is not completely received, only the width of the middle magnetizer of the fixture is needed to be adjusted, the magnetizing effect of the magnetic latching relay with small volume is obvious, and the key technical problem of small holding power of part of products is solved.
5) When the fixture is used for magnetizing, the middle magnetic pole-S pole of the magnetic steel in the charged relay can be accurately positioned in the middle of the magnetic steel after magnetizing, and the magnetic induction intensity of the magnetic poles at the end heads is the same.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the utility model and together with the description, serve to explain the principles of the utility model. It is obvious that the drawings in the following description are only some embodiments of the utility model, and that for a person skilled in the art, other drawings can be derived from them without inventive effort. In the drawings:
FIG. 1 is a schematic view of a clamp structure according to the present invention;
FIG. 2 is a cross-sectional view of FIG. 1;
FIG. 3 is a schematic view of the intermediate magnetizer of FIG. 1;
FIG. 4 is a schematic view of the end face magnetizer of FIG. 1;
FIG. 5 is a cross-sectional view of a relay of a certain type after an electromagnetic part is clamped;
FIG. 6 is a schematic view of a magnetizing magnetic circuit, in which the arrows indicate the magnetic circuit direction during magnetizing;
in the drawings: 1-handle, 2-screw, 3-positioning block, 4-middle magnetizer, 5-end magnetizer and 6-elastic stop.
Detailed Description
Example embodiments will now be described more fully with reference to the accompanying drawings. Example embodiments may, however, be embodied in many different forms and should not be construed as limited to the examples set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of example embodiments to those skilled in the art.
The utility model aims to provide a magnetizing clamp of a magnetic latching relay, which is mainly suitable for magnetizing strip-shaped magnetic steel in a differential electromagnetic part, according to the assembly process requirement of the magnetic latching relay, the strip-shaped magnetic steel which needs three-pole magnetization is not suitable for magnetizing the individual magnetic steel, and the magnetizing and demagnetizing processes are generally carried out when the magnetic steel is assembled to the electromagnetic part. Because demagnetization only needs to adjust the magnetizing machine to be in a demagnetization mode, the principle is the same as that of magnetization, and the magnetization is taken as an example for detailed description.
This anchor clamps that magnetize convenient operation uses this anchor clamps to fill the demagnetization to relay electromagnetism part, need not to adjust the position of the middle magnetic pole-the S utmost point of magnet steel in the relay that is being charged and can accurately realize the tripolar magnetization, the middle magnetic pole-the S utmost point width of magnet steel in the relay that is being charged of tripolar permanent magnetism can be controlled according to the design requirement of relay, the middle magnetic pole-the S utmost point width of magnet steel is decided by the magnetic field that the coil produced completely in the relay that is being charged when avoiding magnetizing, the magnetic induction intensity uniformity of the both ends face magnetic pole is better after magnetizing.
Referring to fig. 1-4, the magnetizing clamp provided by the utility model comprises a middle magnetizer 4, an end surface magnetizer 5, a positioning block 3, an elastic stopper 6, a handle 1 and a screw 2. The middle magnetizer 4, the end face magnetizer 5 and the elastic stop plate 6 are arranged on the positioning block 3.
The middle magnetizer 4 in the fixture is the area ratio of the S pole position and the S pole of the tripolar magnetic steel on the strip magnetic steel, and is also the key of the trend of the internal magnetic field after the magnetic steel is magnetized, and the pole face of the middle magnetizer 4 is directly attached to the target magnetic steel, so that the air gap of the magnetizing magnetic circuit is reduced. The end face magnetizer 5 is used for positioning the N pole position of target magnetic steel (three-pole magnetic steel) and is designed according to the structure of the electromagnetic part of the magnetized holding relay and the trend of a magnetic circuit. In the magnetized holding relay, an end face magnetizer 5 is attached to the pole face of a pole shoe and then magnetized, and then 2 closed magnetic loops can be formed with a middle magnetizer 4.
In this embodiment, the intermediate magnetizer 4 and the end-face magnetizer 5 are made of electromagnetic pure iron DT4C with good magnetic permeability. The positioning block 3 is mainly used for positioning the electromagnetic part in the fixture body and has a certain magnetic isolation effect, the positioning block 3 is made of non-magnetic aluminum alloy material, the positioning block 3 cannot use material with good magnetic conductivity, and otherwise, the fixture cannot form an effective magnetic circuit. The elastic backstop 6 is mainly used for clamping and fixing the electromagnetic part of the target relay during magnetization, preventing residual magnetic reaction force of magnetic steel in the magnetization process from separating a product from a magnetization position to influence the magnetization effect, and simultaneously avoiding adsorbing redundant substances; the clamping force of the elastic stop 6 is set according to the weight of a target relay, for example, the weight of a subminiature relay of a certain model, the clamping force of the elastic stop 6 should not be less than 1N, and the material can be stainless steel band with better elasticity or extra hard beryllium copper.
The handle 1 is used for placing the fixture body into and taking out the magnetizing and demagnetizing coil in the magnetizing process and has the function of positioning the fixture body; the screw 2 connects and fixes the parts of the clamp.
The magnetizing clamp comprises the following use processes: placing the electromagnetic part of the target relay into a clamp positioning block for clamping, as shown in fig. 5; then put anchor clamps wholly into tripolar magnetizing coil, open the magnetizer switch, the mode changes into the mode of magnetizing (the demagnetization mode can be carried out the demagnetization to the electromagnetism part, not repeated), transfer the voltage knob that needs the magnetization, the electric capacity in the magnetizer begins the energy storage this moment, the actual effect that the voltage that magnetizes according to the product is adjusted. After the magnetizing voltage is adjusted, the magnetizing button is pressed, at the moment, the magnetizing coil can form two magnetic field loops with the same magnetic field intensity, and the magnetic field directions are symmetrical by a central line, as shown in fig. 6. At this time, because of the existence of the magnetizing clamp in the magnetizing coil, the magnetic conductivity of the electromagnetic pure iron is far higher than that of air and aluminum alloy, two symmetrical magnetic field loops with equal size and opposite direction are formed in the clamp body and the electromagnetic part of the relay by the magnetic circuit according to the magnetic flux always along the path with the minimum magnetic resistance, the magnetic domain direction of the hard magnetic alloy (magnetic steel) in the magnetic loop is magnetized along the magnetic circuit direction, and the three-pole characteristic is shown (the utility model takes N-S-N as an example).
The clamp is used for magnetizing the electromagnetic part of the relay, so that the magnetizing voltage can be effectively reduced, the magnetizing voltage needs 250 +/-10V before the clamp is used for a certain type of subminiature relay, and the magnetizing voltage can be reduced to 200 +/-8V after the clamp is used for magnetizing so as to meet the requirement.
The clamp performs three-pole magnetization or demagnetization on the magnetic steel of the electromagnetic part of the magnetic latching relay in a closed magnetic circuit mode, the middle magnetic pole can be accurately positioned in the middle of the magnetic steel after magnetization, the magnetic induction intensity of the end magnetic pole is the same, the error does not exceed 6%, and the clamp is suitable for magnetizing the precise magnetic latching relay with compact structure and small size.
The above embodiments are only for illustrating the technical solutions of the present invention and are not limited, and modifications or equivalent substitutions made by those skilled in the art to the technical solutions of the present invention are included in the scope of the claims of the present invention without departing from the spirit and scope of the technical solutions of the present invention.
Claims (7)
1. A magnetizing jig of a magnetic latching relay, characterized by comprising:
a positioning block (3) configured to position the target relay electromagnetic part;
the middle magnetizer (4) is configured and arranged on the positioning block (3) and is used for positioning the S pole position of the target magnetic steel and the ratio of the S pole on the target magnetic steel; and
and the end face magnetizer (5) is configured and arranged on the positioning block (3) and is used for positioning the N pole position of the target magnetic steel.
2. The magnetizing clamp of the magnetic latching relay according to claim 1, further comprising an elastic stop plate (6) mounted on the positioning block (3); the elastic stop plate (6) is used for clamping and fixing the electromagnetic part of the target relay during magnetization, so that residual magnetic reaction of target magnetic steel in the magnetization process is prevented from separating the electromagnetic part of the target relay from the magnetization position, and meanwhile, the adsorption of surplus objects is avoided.
3. The magnetizing clamp of the magnetic latching relay as claimed in claim 2, wherein the clamping force of the elastic stop plate (6) should not be less than 1N, and the material is elastic stainless steel band or extra hard beryllium copper.
4. The magnetizing jig of a magnetic latching relay according to claim 1, further comprising a handle (1).
5. The magnetizing clamp of the magnetic latching relay as claimed in claim 1, wherein the positioning block (3) is made of non-magnetic aluminum alloy material.
6. The magnetizing clamp of the magnetic latching relay according to claim 1, wherein the intermediate magnetizer (4) and/or the end magnetizer (5) are electromagnetic pure iron DT 4C.
7. The magnetizing jig for magnetic latching relay according to claim 1, wherein the target relay solenoid is a differential solenoid, and the magnetic steel installed therein is a strip magnetic steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122844574.5U CN216353639U (en) | 2021-11-19 | 2021-11-19 | Magnetizing clamp of magnetic latching relay |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122844574.5U CN216353639U (en) | 2021-11-19 | 2021-11-19 | Magnetizing clamp of magnetic latching relay |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216353639U true CN216353639U (en) | 2022-04-19 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122844574.5U Expired - Fee Related CN216353639U (en) | 2021-11-19 | 2021-11-19 | Magnetizing clamp of magnetic latching relay |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216353639U (en) |
-
2021
- 2021-11-19 CN CN202122844574.5U patent/CN216353639U/en not_active Expired - Fee Related
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20220419 |
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| CF01 | Termination of patent right due to non-payment of annual fee |