CN217061910U - Self-locking rotation-preventing arc-extinguishing mechanism of direct current contactor - Google Patents
Self-locking rotation-preventing arc-extinguishing mechanism of direct current contactor Download PDFInfo
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- CN217061910U CN217061910U CN202220090100.8U CN202220090100U CN217061910U CN 217061910 U CN217061910 U CN 217061910U CN 202220090100 U CN202220090100 U CN 202220090100U CN 217061910 U CN217061910 U CN 217061910U
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- arc extinguishing
- cover
- extinguishing cover
- direct current
- current contactor
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Abstract
The utility model discloses a direct current contactor auto-lock prevents changeing arc extinguishing mechanism, include: the arc extinguishing cover is provided with an arc extinguishing chamber, accommodating grooves are formed in two sides of the arc extinguishing chamber, and the two permanent magnets are accommodated in the accommodating grooves in a one-to-one correspondence mode; the arc extinguishing cover is fixedly connected to the arc extinguishing cover in a buckling mode and tightly presses the permanent magnet in the corresponding accommodating groove. This arc extinguishing cover and arc extinguishing cover of arc extinguishing mechanism are prevented changeing in direct current contactor auto-lock are connected mutual locking with the arc extinguishing cover with the buckle mode, and it is firm to connect stably, guarantees the arc extinguishing effect to be provided with in permanent magnet and arc extinguishing cover and prevent slow-witted structure, avoid installing the permanent magnet anti-reverse, the storage tank of arc extinguishing cover adopts the blind hole design simultaneously, it produces the performance to have the foreign matter to drop to glue on the contact when avoiding arc extinguishing cover and arc extinguishing cover lock.
Description
Technical Field
The utility model relates to a direct current contactor technical field, in particular to direct current contactor auto-lock prevents changeing arc extinguishing mechanism.
Background
The direct current contactor on the market at present comprises five major parts, which are an electromagnetic part, a moving part, a contact part, an arc extinguishing part and a mounting part. The electromagnetic part is responsible for converting electric energy into kinetic energy; the moving part is responsible for the connection between the electromagnetic part and the contact part; the contact part is responsible for the execution of the on-off of the contactor; the arc extinguishing part is used for extinguishing the arc generated when the contact part is disconnected; the mounting portion is responsible for providing a user mounting location.
The hole shaft cooperation is generally adopted between arc extinguishing chamber and the arc extinguishing lid of current arc extinguishing mechanism, and it is connected unstably, leads to the part to become flexible easily and drop to the fit clearance that adopts hole shaft cooperation needs is great, and mutual rotation takes place easily with the arc extinguishing lid for the arc extinguishing chamber, influences the arc extinguishing effect.
Disclosure of Invention
The utility model aims to solve the problem that a direct current contactor auto-lock prevents changeing arc extinguishing mechanism is provided to overcome among the prior art arc-extinguish chamber and arc-extinguishing lid and be connected unstability, part easily not hard up drop or take place the mutual rotation and influence the defect of arc extinguishing effect.
The utility model discloses a solve the technical scheme that its technical problem adopted and be: a direct current contactor auto-lock prevents changeing arc extinguishing mechanism includes: the arc extinguishing cover is provided with an arc extinguishing chamber, accommodating grooves are formed in two sides of the arc extinguishing chamber, and the two permanent magnets are accommodated in the accommodating grooves in a one-to-one correspondence mode; the arc extinguishing cover is fixedly connected to the arc extinguishing cover and tightly presses the permanent magnet into the corresponding accommodating groove.
As a further improvement of the utility model, the arc-extinguishing cover is fixedly connected with the arc-extinguishing cover in a buckle mode.
As a further improvement, the arc extinguishing cover orientation one side of arc extinguishing cover corresponds to storage tank department all is provided with the trip, the storage tank along the inner wall be provided with the draw-in groove that the trip cooperation was used.
As a further improvement, the arc extinguishing cover orientation one side of arc extinguishing cover corresponds to storage tank department all is provided with spacing boss, spacing boss is inserted and is established in the storage tank and support and lean on the tip of permanent magnet.
As a further improvement, the limiting boss is provided with limiting ribs along the outer wall, and the storage tank is provided with a limiting groove matched with the limiting ribs for use along the inner wall.
As a further improvement, one of them the permanent magnet and corresponding be provided with between the storage tank and prevent slow-witted structure.
As a further improvement of the present invention, the fool-proof structure comprises a fool-proof groove formed along the outer wall of the permanent magnet and a fool-proof rib formed on one of the inner walls of the storage tank and formed on the other one of the inner walls of the storage tank, wherein the fool-proof groove is matched with the fool-proof rib.
As a further improvement, two the size of the permanent magnet is different, two the size of the storage tank is matched with two one by one the permanent magnet.
As a further improvement, the utility model discloses a two the storage tank is the opening orientation the blind hole of arc extinguishing cover.
As a further improvement, two the storage tank all is provided with a plurality of ribs along the inner wall.
The beneficial effects of the utility model are that:
1. the utility model provides a direct current contactor auto-lock prevents changeing arc extinguishing mechanism, through be provided with the storage tank that is used for holding the permanent magnet in the arc-extinguishing chamber, the arc-extinguishing lid is fixed connection and compresses tightly the permanent magnet with the arc-extinguishing chamber by the buckle mode for arc-extinguishing lid and arc-extinguishing chamber lock each other, and it is firm to connect stable, avoids taking place to become flexible and drops, guarantees the arc extinguishing effect, and overall structure is compact, and the equipment is convenient;
2. the arc extinguishing cover and the arc extinguishing cover are respectively provided with a limiting groove and a limiting rib which are mutually matched for use, so that the relative position of the arc extinguishing cover and the arc extinguishing cover is ensured to be fixed, relative rotation cannot occur, and the arc extinguishing effect is prevented from being influenced;
3. a foolproof structure is arranged in the accommodating groove of one permanent magnet and the arc extinguishing cover, and the two permanent magnets are different in length, so that the permanent magnets are correctly assembled, and the arc extinguishing mechanism is prevented from losing the arc extinguishing effect caused by reversely assembling the permanent magnets during assembly;
4. the storage tank adopts the blind hole design, has the foreign matter to drop and glues and influence product property ability on the contact when preventing arc-extinguishing cover and arc-extinguishing cover lock.
Drawings
FIG. 1 is a perspective view of the self-locking anti-rotation arc extinguishing mechanism of the DC contactor of the present invention;
FIG. 2 is an exploded view of the DC contactor of the present invention;
FIG. 3 is a cross-sectional view of the self-locking anti-rotation arc extinguishing mechanism of the DC contactor of the present invention;
figure 4 is a perspective view of the arc chute of the present invention;
fig. 5 is a perspective view of the arc extinguishing cover of the present invention.
The following description is made with reference to the accompanying drawings:
1-arc extinguishing chamber; 101-arc extinguishing chamber;
102-a receiving groove; 1021-card slot;
1022-a limiting groove; 1023-fool-proof convex rib;
1024-ribs; 2-arc extinguishing cover;
201-hook; 202-limit boss;
2021-limit rib; 3-permanent magnet;
301-fool-proof groove.
Detailed Description
The following description of the preferred embodiments of the present invention will be made with reference to the accompanying drawings.
Referring to fig. 1 to 5, the utility model provides a direct current contactor auto-lock prevents changeing arc extinguishing mechanism, include: the arc extinguishing cover comprises an arc extinguishing cover 1, an arc extinguishing cover 2 and a pair of permanent magnets 3. The arc-extinguishing chamber 1 is provided with an arc-extinguishing chamber 101, the arc-extinguishing chamber 101 is used for accommodating a contact assembly of a direct current contactor, the arc-extinguishing chamber 1 is provided with accommodating grooves 102 on two sides of the arc-extinguishing chamber 101, and the two accommodating grooves 102 are located on two outer sides of the arc-extinguishing chamber 1, where two fixed contacts are opposite to each other. The two permanent magnets 3 are accommodated in the accommodating groove 102 in a one-to-one correspondence manner, and under the action of the magnetic fields of the two permanent magnets 3, electric arcs generated when the contact assembly is disconnected are guided to the two sides of the arc extinguishing chamber 101 to be extinguished. Arc extinguishing cover 2 fixed connection is on arc extinguishing chamber 1 and compresses tightly permanent magnet 3 in corresponding storage tank 102, and is concrete, with buckle mode fixed connection between arc extinguishing cover 2 and the arc extinguishing chamber 1 for arc extinguishing cover 2 and arc extinguishing chamber 1 are locked each other, and it is firm to connect, avoids taking place not hard up to drop, guarantees the arc extinguishing effect.
Referring to fig. 2 and 3, the arc-extinguishing cover 2 is installed at the bottom of the arc-extinguishing cover 1, two hooks 201 are symmetrically arranged at the top surface of the arc-extinguishing cover 2 facing the arc-extinguishing cover 1 corresponding to the two accommodating grooves 102, the accommodating grooves 102 are provided with clamping grooves 1021 along the inner wall corresponding to the hooks 201, and the two hooks 201 are clamped in the two clamping grooves 1021 in a one-to-one matching manner to realize locking.
In addition, can also set up two pairs or even more to permanent magnet 3, corresponding needs set up in arc-extinguishing chamber 1 with one of them corresponding storage tank 102 that matches, can reach the same function, the specific quantity of permanent magnet 3 can be adjusted according to actual design needs, and this application does not do the restriction here to satisfy actual need and aim at.
Referring to fig. 3 and 5, the arc extinguishing cover 2 is further symmetrically provided with two limiting bosses 202 corresponding to the two accommodating grooves 102 and facing the top surface of the arc extinguishing chamber 1, the two limiting bosses 202 are respectively arranged around the outer sides of the two hooks 201, the height of the limiting boss 202 is greater than that of the hook 201, the limiting boss 202 is inserted into the accommodating groove 102 and abuts against the lower end of the permanent magnet 3, and then the permanent magnet 3 is compressed and positioned, so that the rocking is avoided. Wherein, two spacing bosss 202 all are provided with two spacing muscle 2021 along the outer wall, and every storage tank 102 all is provided with spacing groove 1022 along inner wall one-to-one corresponding to spacing muscle 2021, and when arc-extinguishing cover 2 chucking was on arc-extinguishing chamber 1, spacing muscle 2021 just fell into corresponding spacing groove 1022. The arc extinguishing cover 2 is fixed with the relative position of the arc extinguishing cover 1 by the matching use of the limiting rib 2021 and the limiting groove 1022, and the influence on the arc extinguishing effect caused by relative rotation is prevented.
Referring to fig. 2 and 4, a fool-proof structure is disposed between one of the permanent magnets 3 and the corresponding receiving slot 102. Prevent slow-witted structure can be including preventing slow-witted recess 301 and preventing slow-witted protruding muscle 1023 along the setting of storage tank 102 inner wall along the setting of 3 outer walls of this permanent magnet, prevent slow-witted recess 301 and prevent that slow-witted protruding muscle 1023 all follows vertical direction setting. When the correct permanent magnet 3 is loaded in the containing groove 102, the fool-proof groove 301 is matched with the fool-proof convex rib 1023; otherwise, interference is caused by the fool-proof convex rib 1023 to cause that the other permanent magnet 3 can not be installed, and further the arc extinguishing mechanism is prevented from losing the arc extinguishing effect due to the fact that the permanent magnet 3 is installed reversely during assembly.
Similarly, prevent slow-witted structure also can be including preventing slow-witted protruding muscle 1023 and prevent slow-witted recess 301 along the setting of storage tank 102 inner wall along the setting of this 3 outer walls of permanent magnet, can play the effect of preventing slow-witted equally, prevent that permanent magnet 3 from adorning conversely, and the here is no longer detailed repeatedly.
In addition, the two permanent magnets 3 have different sizes, specifically, the length of the permanent magnet 3 with the fool-proof groove 301 is longer than that of the other permanent magnet 3, and correspondingly, the sizes of the two accommodating grooves 102 are matched with the two permanent magnets 3 one by one. Adopt structural design for permanent magnet 3 that has fool-proof recess 301 can not pack into and does not have the storage tank 102 of preventing fool protruding muscle 1023, and another permanent magnet 3 is because prevent in the storage tank 102 that fool protruding muscle 1023's interference is also can not pack into in this storage tank 102 equally, and then only can assemble two permanent magnets 3 according to the exact mounting means when the assembly, avoids the dress completely and prevents the situation of turning over.
Wherein, two storage grooves 102 all are provided with a plurality of ribs 1024 along the inner wall, and permanent magnet 3 installs its outside wall and supports and lean on rib 1024 in storage groove 102 for better carry on spacingly to permanent magnet 3.
Referring to fig. 4, the two accommodating grooves 102 are blind holes with openings facing the arc-extinguishing cover 2, and when the arc-extinguishing cover 2 is buckled on the arc-extinguishing chamber 1, the openings of the accommodating grooves 102 are blocked, so that foreign matters such as burrs on the arc-extinguishing cover 2 and the arc-extinguishing chamber 1 drop in the accommodating grooves 102 when the arc-extinguishing cover is buckled, and the foreign matters are prevented from being stuck to the contacts to influence the performance of the product.
Therefore, the purpose that the arc extinguishing cover 2 and the arc extinguishing cover 1 are interlocked and are prevented from rotating, the permanent magnet 3 is installed and is prevented from being slow and sticking foreign matters to the contact is achieved simultaneously through the structural design, and the product quality is ensured.
In the previous description, numerous specific details were set forth in order to provide a thorough understanding of the invention. The foregoing description is only a preferred embodiment of the invention, which can be embodied in many different forms and is therefore not limited to the specific embodiments disclosed above. While the invention has been described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes may be made and equivalents may be substituted for elements thereof without departing from the scope of the invention. Any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the present invention are still within the scope of the technical solution of the present invention.
Claims (10)
1. The utility model provides a direct current contactor auto-lock prevents changeing arc extinguishing mechanism which characterized in that includes: the arc extinguishing cover comprises an arc extinguishing cover (1), an arc extinguishing cover (2) and a pair of permanent magnets (3), wherein the arc extinguishing cover (1) is provided with an arc extinguishing chamber (101), accommodating grooves (102) are formed in two sides, located on the arc extinguishing chamber (101), of the arc extinguishing cover (1), and the two permanent magnets (3) are accommodated in the accommodating grooves (102) in a one-to-one correspondence manner; the arc extinguishing cover (2) is fixedly connected to the arc extinguishing cover (1) and compresses the permanent magnet (3) in the corresponding accommodating groove (102).
2. The direct current contactor self-locking anti-rotation arc extinguishing mechanism according to claim 1, characterized in that: the arc extinguishing cover (2) is fixedly connected with the arc extinguishing cover (1) in a buckling mode.
3. The direct current contactor self-locking anti-rotation arc extinguishing mechanism according to claim 2, characterized in that: one side of the arc extinguishing cover (2) facing the arc extinguishing cover (1) corresponds to the containing groove (102) and is provided with a clamping hook (201), and the containing groove (102) is provided with a clamping groove (1021) matched with the clamping hook (201) along the inner wall.
4. The direct current contactor self-locking anti-rotation arc extinguishing mechanism according to claim 1, characterized in that: one side of the arc extinguishing cover (2) facing the arc extinguishing cover (1) corresponds to the containing groove (102) and is provided with a limiting boss (202), and the limiting boss (202) is inserted in the containing groove (102) and is abutted against the end part of the permanent magnet (3).
5. The direct current contactor self-locking anti-rotation arc extinguishing mechanism according to claim 4, characterized in that: the limiting lug boss (202) is provided with limiting ribs (2021) along the outer wall, and the accommodating groove (102) is provided with limiting grooves (1022) matched with the limiting ribs (2021) for use along the inner wall.
6. The direct current contactor self-locking anti-rotation arc extinguishing mechanism according to claim 1, characterized in that: a fool-proof structure is arranged between one permanent magnet (3) and the corresponding accommodating groove (102).
7. The direct current contactor self-locking anti-rotation arc extinguishing mechanism according to claim 6, characterized in that: prevent slow-witted structure include along this permanent magnet (3) outer wall with prevent slow-witted recess (301) and another setting of preventing of one of them setting of storage tank (102) inner wall prevent slow-witted protruding muscle (1023), prevent slow-witted recess (301) with prevent slow-witted protruding muscle (1023) identical.
8. The direct current contactor self-locking anti-rotation arc extinguishing mechanism according to claim 1, characterized in that: the two permanent magnets (3) are different in size, and the two accommodating grooves (102) are matched with the two permanent magnets (3) one by one in size.
9. The direct current contactor self-locking anti-rotation arc extinguishing mechanism according to claim 1, characterized in that: the two accommodating grooves (102) are blind holes with openings facing the arc extinguishing cover (2).
10. The direct current contactor self-locking anti-rotation arc extinguishing mechanism according to claim 1, characterized in that: a plurality of ribs (1024) are arranged on the two accommodating grooves (102) along the inner wall.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220090100.8U CN217061910U (en) | 2022-01-14 | 2022-01-14 | Self-locking rotation-preventing arc-extinguishing mechanism of direct current contactor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220090100.8U CN217061910U (en) | 2022-01-14 | 2022-01-14 | Self-locking rotation-preventing arc-extinguishing mechanism of direct current contactor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217061910U true CN217061910U (en) | 2022-07-26 |
Family
ID=82480829
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220090100.8U Active CN217061910U (en) | 2022-01-14 | 2022-01-14 | Self-locking rotation-preventing arc-extinguishing mechanism of direct current contactor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217061910U (en) |
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2022
- 2022-01-14 CN CN202220090100.8U patent/CN217061910U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CB03 | Change of inventor or designer information | ||
| CB03 | Change of inventor or designer information |
Inventor after: Liu Tianjie Inventor after: Yang Xin Inventor after: Gu Chunpeng Inventor after: Chen Jianhua Inventor after: Hu Jin Inventor before: Wang Zhiping Inventor before: Liu Tianjie Inventor before: Yang Xin Inventor before: Gu Chunpeng Inventor before: Chen Jianhua Inventor before: Hu Jin |