CN216212999U - Magnetic latching relay with arc extinguishing magnetic steel - Google Patents
Magnetic latching relay with arc extinguishing magnetic steel Download PDFInfo
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- CN216212999U CN216212999U CN202122384104.5U CN202122384104U CN216212999U CN 216212999 U CN216212999 U CN 216212999U CN 202122384104 U CN202122384104 U CN 202122384104U CN 216212999 U CN216212999 U CN 216212999U
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- arc extinguishing
- magnetic steel
- shell
- magnetic
- latching relay
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Abstract
The utility model discloses a magnetic latching relay with arc extinguishing magnetic steel, which comprises a shell, a base and an arc extinguishing magnetic steel component, wherein the shell is provided with a magnetic latching coil; the bottom of the shell surrounds the base and is fixed with the base, so that a cavity for assembling a main component of the magnetic latching relay is formed between the shell and the base; the inner side of the side wall of the shell is provided with a slot, and the arc extinguishing magnetic steel component is assembled in the slot of the shell and is positioned at a position corresponding to the matching of the moving contact and the static contact in the main body component; the arc extinguishing magnetic steel assembly is formed by laminating flaky arc extinguishing magnetic steel and flaky magnetic isolating sheets; the arc extinguishing magnetic steel component is fixed in the slot of the shell in an interference fit mode. The utility model can improve the available space of the product and reduce the production cost of the product on the premise of not sacrificing the arc extinguishing function of the product through the magnetic steel.
Description
Technical Field
The utility model relates to the technical field of relays, in particular to a magnetic latching relay with arc extinguishing magnetic steel.
Background
The magnetic latching relay is a novel relay developed in recent years and is also an automatic switch. The electromagnetic relay has the function of automatically switching on and off the circuit like other electromagnetic relays. The difference is that the normally closed or normally open state of the magnetic latching relay completely depends on the action of the permanent magnet, and the switching state of the magnetic latching relay is triggered by a pulse electric signal with a certain width. The magnetic latching relay is normally held in a contact open/close state by a magnetic force generated by a permanent magnet. When the contact of the relay needs to be in an open or close state, the relay only needs to excite the coil by positive (negative) direct current pulse voltage, and the relay completes the state conversion of opening and closing instantly. Normally, when the contact is in the hold state, the coil does not need to be energized, and the relay state can be maintained by only the magnetic force of the permanent magnet.
With the continuous expansion of the application field of relays, especially in the field of communication networks, relays with small volume and large load have become a development trend under the drive of miniaturization of equipment. The trend of small volume and large load also requires that the product can break the electric arc in a limited space, and meanwhile, the enough space in the product needs to be ensured as far as possible for arranging other parts of the relay. The magnetic latching relay in the prior art is generally provided with two types of magnetic steel, one type of magnetic latching magnetic steel for magnetic latching, which is generally assembled with the armature to form a driving part, and the other type of magnetic latching magnetic steel for arc extinguishing. In the prior art, most of magnetic latching relays are provided with arc extinguishing magnetic steel outside a shell to ensure enough space inside a product, and meanwhile, in order to position the arc extinguishing magnetic steel and form effective protection, the arc extinguishing magnetic steel is fixed by glue dispensing; the mode sacrifices the outer space of the product, increases the installation distance among a plurality of products and is not beneficial to the miniaturization of equipment. A part of magnetic latching relay is additionally provided with a part similar to a magnetic steel bracket inside a product to position arc extinguishing magnetic steel; if the arc extinguishing magnetic steel and the magnetic latching magnetic steel are magnetized after being assembled to the relay, mutual influence exists, and if the magnetic steel is assembled after being magnetized, the polarity of the magnetic steel needs to be distinguished to ensure the arc extinguishing effectiveness, so that the operation difficulty is increased for subsequent assembly; in addition, the shell assembly mode increases the cost of parts and the assembly cost due to the addition of the part positioning magnetic steel.
SUMMERY OF THE UTILITY MODEL
The utility model aims to overcome the defects of the prior art and provides a magnetic latching relay with arc extinguishing magnetic steel, which can improve the available space of a product and reduce the production cost of the product on the premise of not sacrificing the arc extinguishing function of the product through the magnetic steel through structural improvement.
The technical scheme adopted by the utility model for solving the technical problems is as follows: a magnetic latching relay with arc extinguishing magnetic steel comprises a shell, a base and an arc extinguishing magnetic steel component; the bottom of the shell surrounds the base and is fixed with the base, so that a cavity for assembling a main component of the magnetic latching relay is formed between the shell and the base; the inner side of the side wall of the shell is provided with a slot, and the arc extinguishing magnetic steel component is assembled in the slot of the shell and is positioned at a position corresponding to the matching of the moving contact and the static contact in the main body component; the arc extinguishing magnetic steel assembly is formed by laminating flaky arc extinguishing magnetic steel and flaky magnetic isolating sheets; the arc extinguishing magnetic steel component is fixed in the slot of the shell in an interference fit mode.
The slot is arranged on the side wall of the shell and consists of the side wall at the corresponding position of the shell and a surrounding wall with a U-shaped cross section.
The side wall of the shell consists of a first side wall close to the outside and a second side wall close to the inside, the bottom end edge of the second side wall forms an inner step of the side wall of the shell, and the inner step of the side wall of the shell is lapped on the base; in the second side wall, a removal part is arranged at a position corresponding to the slot to form a part of the slot.
In the base, the position department of being equipped with arc extinguishing magnet steel assembly corresponding to the shell still is equipped with the boss, the top surface of boss is supported arc extinguishing magnet steel assembly's bottom.
The depth of the slot is smaller than the height of the arc extinguishing magnetic steel assembly, so that the lower section of the arc extinguishing magnetic steel assembly is exposed towards the direction in the shell; on the boss of base, still be equipped with the barricade, the top of barricade supports extremely the bottom of leg to shelter from on the direction that arc extinguishing magnet steel assembly exposes to the shell is interior.
And an inclined plane is further arranged at the upper end of the retaining wall on one surface facing the arc extinguishing magnetic steel assembly.
And two sides of the thickness of the bottom end of the enclosing wall are respectively designed to be arc-shaped.
The laminated arc extinguishing magnetic steel and the magnetic shielding sheet are laminated together, the arc extinguishing magnetic steel is arranged on the inner side, and the magnetic shielding sheet is arranged on the outer side.
The thickness dimension of the arc extinguishing magnetic steel is larger than that of the magnetism isolating sheet.
Two sides of the width of the magnetism isolating sheet are respectively provided with a folded edge, and the two folded edges of the width of the magnetism isolating sheet are respectively wrapped on two sides of the width of the arc extinguishing magnetic steel.
Compared with the prior art, the utility model has the beneficial effects that:
1. the arc extinguishing magnetic steel component is assembled in the slot of the shell, and the position of the arc extinguishing magnetic steel component is in a position corresponding to the matching of the moving contact and the static contact in the main body component; the arc extinguishing magnetic steel assembly is formed by laminating flaky arc extinguishing magnetic steel and flaky magnetic isolating sheets; the arc extinguishing magnetic steel component is fixed in the slot of the shell in an interference fit mode. According to the structure, the thin magnetic steel design and the form of embedding the arc extinguishing magnetic steel assembly in the shell are adopted, and the arc extinguishing magnetic steel assembly is formed by laminating the arc extinguishing magnetic steel and the magnetic shielding sheets and is in interference fit with the shell, so that the available space of a product is improved and the production cost of the product is reduced on the premise of not sacrificing the function of arc extinguishing of the product through the magnetic steel. And the product can magnetize respectively at the arc extinguishing magnet steel that the shell part contained and the magnetism that the relay main part contained keeps the magnet steel, and the spacing magnet steel that can be better among the shell part magnetization process, shell part magnetizes alone simultaneously, can not lead to the fact the influence to the magnet steel of magnetic circuit part and other devices inside the product. After the shell part is magnetized, the extra operation of distinguishing the polarities of the magnetic steel is avoided, and the assembly cost is further saved. Unnecessary parts similar to the magnetic steel bracket are not needed in the assembling process, and the part cost is saved.
2. The utility model adopts the structure that the boss is arranged in the base at the position corresponding to the position of the shell and provided with the arc extinguishing magnetic steel assembly, the top surface of the boss is abutted against the bottom end of the arc extinguishing magnetic steel assembly, and the retaining wall is arranged on the boss of the base so as to shield the direction in which the arc extinguishing magnetic steel assembly is exposed to the shell. The structure of the utility model can ensure the strength of the product base, simultaneously provides larger internal space of the product, only part of the shell wraps the magnetic steel part, the product base is abutted against the shell through arranging the corresponding retaining wall, the contact part of the magnetic steel and the relay is blocked by the matching of the shell and the base, and the problem of thermal decay of the magnetic steel is reduced to a certain degree.
The utility model is further explained in detail with the accompanying drawings and the embodiments; however, the magnetic latching relay with the arc extinguishing magnetic steel of the present invention is not limited to the embodiment.
Drawings
FIG. 1 is an exploded perspective view of an embodiment of the present invention;
FIG. 2 is an exploded perspective view (rotated by an angle) of an embodiment of the present invention;
FIG. 3 is a schematic view of the housing and base of an embodiment of the present invention;
FIG. 4 is a schematic perspective view of the housing and arc suppressing magnetic steel assembly of the embodiment of the present invention;
FIG. 5 is a schematic view of the housing of the embodiment of the present invention cooperating with the arc extinguishing magnet steel assembly;
fig. 6 is a cross-sectional view of the housing of an embodiment of the present invention mated with an arc extinguishing magnet steel assembly.
Detailed Description
Examples
Referring to fig. 1 to 6, the magnetic latching relay with arc extinguishing magnetic steel of the present invention includes a housing 1, a base 2 and an arc extinguishing magnetic steel assembly 3; the bottom of the shell 1 is enclosed outside the base 2 and fixed with the base 2, so as to enclose a cavity 10 used for assembling a main component of the magnetic latching relay between the shell 1 and the base 2, the main component of the magnetic latching relay comprises a contact part 51, a push card 52, an armature part 53, a magnetic circuit part 54 and the like, the base 2 is also provided with a bottom cover plate 55, and the magnetic latching relay is also provided with an auxiliary contact part 56; a slot 4 is arranged on the inner side of the side wall of the shell 1, and the arc extinguishing magnetic steel component 3 is assembled in the slot 4 of the shell 1, so that the position of the arc extinguishing magnetic steel component 3 is in a position corresponding to the matching of a moving contact and a static contact in a main body component; the arc extinguishing magnetic steel component 3 is formed by laminating a flaky arc extinguishing magnetic steel 31 and a flaky magnetic shielding sheet 32 together; arc extinguishing magnet steel component 3 passes through interference fit mode to be fixed in slot 4 of shell 1.
In this embodiment, the slot 4 is disposed on a side wall 11 of the housing 1, and is composed of a side wall at a corresponding position of the housing 1 and a surrounding wall 12 with a U-shaped cross section.
In this embodiment, the side wall 11 of the housing 1 is composed of a first side wall 111 close to the outside and a second side wall 112 close to the inside, and the bottom end of the second side wall 112 forms an inner step 113 of the side wall 11 of the housing 1, and the inner step 113 of the side wall 11 of the housing 1 is lapped on the base 2; in the second side wall 112, a removal portion 1121 is provided at a position corresponding to the slot 4 to constitute a part of the slot 4.
In this embodiment, in the base 2, a boss 21 is further disposed at a position corresponding to the position of the housing 1 where the arc extinguishing magnetic steel assembly 3 is assembled, and a top surface of the boss 21 abuts against a bottom end of the arc extinguishing magnetic steel assembly 3.
In this embodiment, the depth of the slot 4 is smaller than the height of the arc extinguishing magnetic steel assembly 3, so that the lower section of the arc extinguishing magnetic steel assembly 3 is exposed towards the direction inside the housing 1; on the boss 21 of base 2, still be equipped with barricade 22, the top of barricade 22 supports extremely the bottom of leg 12 is in order to shelter from the direction that arc extinguishing magnet steel assembly 3 exposes in to the shell.
In this embodiment, an inclined plane 221 is further disposed on one side of the upper end of the retaining wall 22 facing the arc extinguishing magnetic steel assembly; the ramp 221 is provided to facilitate assembly. The utility model designs the retaining wall 22 to be short, and can monitor the contact clearance and check the overtravel between contacts by using the low-height characteristic of the retaining wall 22.
In this embodiment, two sides of the thickness of the bottom end of the surrounding wall 12 are respectively formed into circular arcs 121.
In this embodiment, among the arc extinguishing magnetic steel 31 and the magnetism isolating sheet 32 which are laminated together, the arc extinguishing magnetic steel 31 is arranged at the inner side facing the contact position of the moving contact and the static contact, and the magnetism isolating sheet 32 is arranged at the outer side.
In this embodiment, the thickness of the arc extinguishing magnet 31 is greater than that of the magnetism isolating sheet 32.
In this embodiment, two edges 321 of the width of the magnetism isolating sheet 32 are respectively provided with a folded edge 321, and the two folded edges 321 of the width of the magnetism isolating sheet 32 are respectively wrapped on two edges of the width of the arc extinguishing magnetic steel 31.
The utility model discloses a magnetic latching relay with arc extinguishing magnetic steel, which adopts the technical scheme that a slot 4 is arranged on the inner side of a side wall 11 of a shell 1, an arc extinguishing magnetic steel component 3 is assembled in the slot 4 of the shell 1, and the position of the arc extinguishing magnetic steel component 3 is in a position corresponding to the matching of a moving contact and a static contact in a main body component; the arc extinguishing magnetic steel component 3 is formed by laminating a flaky arc extinguishing magnetic steel 31 and a flaky magnetism isolating sheet 32; arc extinguishing magnet steel component 3 passes through interference fit mode to be fixed in slot 4 of shell 1. According to the structure, the thin magnetic steel design and the form of embedding the arc extinguishing magnetic steel assembly in the shell are adopted, and the arc extinguishing magnetic steel assembly is formed by laminating the arc extinguishing magnetic steel and the magnetic shielding sheets and is in interference fit with the shell, so that the available space of a product is improved and the production cost of the product is reduced on the premise of not sacrificing the function of arc extinguishing of the product through the magnetic steel. And the product can magnetize respectively at the arc extinguishing magnet steel that the shell part contained and the magnetism that the relay main part contained keeps the magnet steel, and the spacing magnet steel that can be better among the shell part magnetization process, shell part magnetizes alone simultaneously, can not lead to the fact the influence to the magnet steel of magnetic circuit part and other devices inside the product. After the shell part is magnetized, the extra operation of distinguishing the polarities of the magnetic steel is avoided, and the assembly cost is further saved. Unnecessary parts similar to the magnetic steel bracket are not needed in the assembling process, and the part cost is saved.
The utility model relates to a magnetic latching relay with arc extinguishing magnetic steel, which is characterized in that a boss 21 is further arranged in a base 2 at a position corresponding to a position of a shell 1 where an arc extinguishing magnetic steel component 3 is assembled, the top surface of the boss 21 abuts against the bottom end of the arc extinguishing magnetic steel component 3, a retaining wall 22 is further arranged on the boss 21 of the base 2, and the retaining wall is used for shielding the direction in which the arc extinguishing magnetic steel component 3 is exposed to the shell. The structure of the utility model can ensure the strength of the product base, simultaneously provides larger internal space of the product, only part of the shell wraps the magnetic steel part, the product base is abutted against the shell through arranging the corresponding retaining wall, the contact part of the magnetic steel and the relay is blocked by the matching of the shell and the base, and the problem of thermal decay of the magnetic steel is reduced to a certain degree.
The foregoing is considered as illustrative of the preferred embodiments of the utility model and is not to be construed as limiting the utility model in any way. Although the present invention has been described with reference to the preferred embodiments, it is not intended to be limited thereto. Those skilled in the art can make many possible variations and modifications to the disclosed embodiments, or equivalent modifications, without departing from the scope of the disclosed embodiments. Therefore, any simple modification, equivalent change and modification made to the above embodiments according to the technical spirit of the present invention should fall within the protection scope of the technical scheme of the present invention, unless the technical spirit of the present invention departs from the content of the technical scheme of the present invention.
Claims (10)
1. A magnetic latching relay with arc extinguishing magnetic steel comprises a shell, a base and an arc extinguishing magnetic steel component; the bottom of the shell surrounds the base and is fixed with the base, so that a cavity for assembling a main component of the magnetic latching relay is formed between the shell and the base; the method is characterized in that: the inner side of the side wall of the shell is provided with a slot, and the arc extinguishing magnetic steel component is assembled in the slot of the shell and is positioned at a position corresponding to the matching of the moving contact and the static contact in the main body component; the arc extinguishing magnetic steel assembly is formed by laminating flaky arc extinguishing magnetic steel and flaky magnetic isolating sheets; the arc extinguishing magnetic steel component is fixed in the slot of the shell in an interference fit mode.
2. The magnetic latching relay with arc extinguishing magnetic steel of claim 1, characterized in that: the slot is arranged on the side wall of the shell and consists of the side wall at the corresponding position of the shell and a surrounding wall with a U-shaped cross section.
3. The magnetic latching relay with arc extinguishing magnetic steel of claim 2, characterized in that: the side wall of the shell consists of a first side wall close to the outside and a second side wall close to the inside, the bottom end edge of the second side wall forms an inner step of the side wall of the shell, and the inner step of the side wall of the shell is lapped on the base; in the second side wall, a removal part is arranged at a position corresponding to the slot to form a part of the slot.
4. The magnetic latching relay with arc extinguishing magnetic steel of claim 2, characterized in that: in the base, the position department of being equipped with arc extinguishing magnet steel assembly corresponding to the shell still is equipped with the boss, the top surface of boss is supported arc extinguishing magnet steel assembly's bottom.
5. The magnetic latching relay with arc extinguishing magnetic steel of claim 4, characterized in that: the depth of the slot is smaller than the height of the arc extinguishing magnetic steel assembly, so that the lower section of the arc extinguishing magnetic steel assembly is exposed towards the direction in the shell; on the boss of base, still be equipped with the barricade, the top of barricade supports extremely the bottom of leg to shelter from on the direction that arc extinguishing magnet steel assembly exposes to the shell is interior.
6. The magnetic latching relay with arc extinguishing magnetic steel of claim 5, characterized in that: and an inclined plane is further arranged at the upper end of the retaining wall on one surface facing the arc extinguishing magnetic steel assembly.
7. The magnetic latching relay with arc extinguishing magnetic steel of claim 5, characterized in that: and two sides of the thickness of the bottom end of the enclosing wall are respectively designed to be arc-shaped.
8. The magnetic latching relay with arc extinguishing magnetic steel of claim 1, characterized in that: the laminated arc extinguishing magnetic steel and the magnetic shielding sheet are laminated together, the arc extinguishing magnetic steel is arranged on the inner side, and the magnetic shielding sheet is arranged on the outer side.
9. The magnetic latching relay with arc extinguishing magnetic steel of claim 8, characterized in that: the thickness dimension of the arc extinguishing magnetic steel is larger than that of the magnetism isolating sheet.
10. The magnetic latching relay with arc extinguishing magnetic steel of claim 9, characterized in that: two sides of the width of the magnetism isolating sheet are respectively provided with a folded edge, and the two folded edges of the width of the magnetism isolating sheet are respectively wrapped on two sides of the width of the arc extinguishing magnetic steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122384104.5U CN216212999U (en) | 2021-09-29 | 2021-09-29 | Magnetic latching relay with arc extinguishing magnetic steel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122384104.5U CN216212999U (en) | 2021-09-29 | 2021-09-29 | Magnetic latching relay with arc extinguishing magnetic steel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216212999U true CN216212999U (en) | 2022-04-05 |
Family
ID=80928356
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122384104.5U Active CN216212999U (en) | 2021-09-29 | 2021-09-29 | Magnetic latching relay with arc extinguishing magnetic steel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216212999U (en) |
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2021
- 2021-09-29 CN CN202122384104.5U patent/CN216212999U/en active Active
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