CN220933994U - Contact device with arc contact - Google Patents
Contact device with arc contact Download PDFInfo
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- CN220933994U CN220933994U CN202322394242.0U CN202322394242U CN220933994U CN 220933994 U CN220933994 U CN 220933994U CN 202322394242 U CN202322394242 U CN 202322394242U CN 220933994 U CN220933994 U CN 220933994U
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- arc
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Abstract
The utility model discloses a contact device with an arc contact, which comprises a moving contact mechanism and a fixed contact mechanism; the moving contact mechanism comprises a fixed bracket, a rotating bracket, a driving contact, a moving arc contact and a first elastic piece; the static contact mechanism comprises a static contact matched with the driving contact and a static arc contact matched with the moving arc contact, and the static arc contact is detachably fixed on the static contact. The beneficial effects of the utility model are as follows: when the active contact is contacted with the static contact, the circuit is communicated, no arc is generated, and when the active contact is separated from the static contact, the moving arc contact and the static arc contact are in an abutting state, so that the circuit is not disconnected, no arc is generated, when the rotating bracket continues to rotate reversely, the generated arc can be only applied to the moving arc contact and the static arc contact when the moving arc contact is separated from the static arc contact, the influence on the active contact and the static contact is avoided, and the moving arc contact and the static arc contact are detachably installed and are convenient to replace, so that the switch is convenient to maintain.
Description
Technical Field
The utility model relates to the technical field of low-voltage direct-current components, in particular to a contact device with an arc contact.
Background
In the contact system of the low-voltage direct current system (such as the Chinese patent application number CN 201911118164.3), when the active contact is contacted with and separated from the static contact, an electric arc is generated between the active contact and the static contact, so that the active contact and the static contact are easy to burn out, the service lives of the active contact and the static contact are not long, the switch is often required to be maintained, and the active contact and the static contact are core components of the switch and are arranged in the switch shell, so that when the active contact and the static contact are burnt out by the electric arc, the maintenance and the replacement of the active contact and the static contact are very difficult.
Disclosure of utility model
In view of the foregoing, it is necessary to provide a contact device with an arc contact, so as to solve the technical problems that when the active contact is contacted with or separated from the static contact, an arc is generated between the active contact and the static contact, burning of the active contact and the static contact is easily caused, and maintenance of the switch is difficult.
In order to achieve the above purpose, the utility model provides a contact device with an arc contact, which comprises a moving contact mechanism and a fixed contact mechanism;
The movable contact mechanism comprises a fixed support, a rotating support, a driving contact, a movable arc contact and a first elastic piece, wherein the rotating support is detachably hinged to the fixed support, the rotating support is used for being connected with an operating mechanism, the operating mechanism is used for driving the rotating support to rotate, the driving contact is installed on the rotating support, the movable arc contact is hinged to the driving contact, one end of the first elastic piece is connected with the rotating support, and the other end of the first elastic piece is connected with the movable arc contact;
The static contact mechanism comprises a static contact matched with the active contact and a static arc contact matched with the movable arc contact, and the static arc contact is detachably fixed on the static contact;
when the rotating support rotates to a first preset position in a certain direction, the movable arc contact starts to be abutted with the static arc contact, and when the rotating support continues to rotate to a second preset position in the certain direction, the driving contact starts to be abutted with the static contact.
In some embodiments, the moving arc contact is provided with a long groove, the moving contact mechanism further comprises a fixed pin, the fixed pin is inserted into the long groove, the tip of the fixed pin is detachably connected with the rotating support, the first elastic piece is sleeved on the fixed pin, one end of the first elastic piece is in butt joint with the moving arc contact, and the other end of the first elastic piece is in butt joint with the rotating support.
In some embodiments, the big end of the fixing pin is used for abutting against the moving arc contact, so that the moving arc contact and the fixing pin can be prevented from being separated, and in other embodiments, the fixing pin is not required to be provided with the big end, as long as the length of the fixing pin can meet the condition that the fixing pin is not separated from the long groove in the moving process.
In some embodiments, a mounting block is fixed on the rotating bracket, a fixing screw hole is formed in the mounting block, and a tip thread of the fixing pin is inserted into the fixing screw hole.
In some embodiments, a connection plate is fixed on the rotating bracket, and the connection plate is used for being connected with an output end of the operating mechanism.
In some embodiments, the moving contact mechanism further includes a plurality of secondary moving contacts and a fixed shaft, where each of the secondary moving contacts and the driving contact is disposed on the fixed shaft in a penetrating manner, so that a closing bounce phenomenon can be reduced by setting a plurality of secondary moving contacts.
In some embodiments, the active contact is welded with a first silver contact, the secondary moving contact is welded with a second silver contact, the moving arc contact is welded with a third silver contact, the stationary contact is welded with a fourth silver contact, and the stationary arc contact is welded with a fifth silver contact.
In some embodiments, the moving contact mechanism further includes a second elastic member, one end of the second elastic member is connected to the rotating bracket, and the other end of the second elastic member is connected to the active contact.
In some embodiments, the movable contact mechanism further comprises a flexible connection and a movable main busbar, one end of the flexible connection is electrically connected with the active contact, and the other end of the flexible connection is electrically connected with the movable main busbar.
In some embodiments, the stationary contact mechanism further comprises a stationary main busbar electrically connected to the stationary contacts.
Compared with the prior art, the technical scheme provided by the utility model has the beneficial effects that: when the rotary support is rotated to a first preset position, the movable arc contact is in abutting connection with the static arc contact, the rotary support continues to rotate, the first elastic piece is compressed, when the rotary support continues to rotate in the same direction to a second preset position, the active contact is in abutting connection with the static contact, the closing action is completed, when the active contact is in contact with the static contact, the circuit is already communicated, and no arc is generated; when the switch is opened, the operating mechanism executes a switch opening command, the operating mechanism drives the rotating bracket to reversely rotate, at the moment, the active contact is separated from the static contact, and the first elastic piece is in a compressed state at the moment, so that when the active contact is separated from the static contact, the active arc contact and the static arc contact are in an abutting state, a circuit is not disconnected, no electric arc is generated, after the rotating bracket continuously reversely rotates, the active arc contact and the static arc contact are separated after the first elastic piece is restored to a natural length, at the moment, the circuit is disconnected, the generated electric arc is only applied to the active arc contact and the static arc contact, the active contact and the static contact cannot be influenced, the active contact and the static contact can be protected to the greatest extent, excessive burning loss is avoided, the service life of the switch is influenced, the active arc contact and the static arc contact are detachably installed, and the switch is convenient to replace, and the switch is convenient to maintain.
Drawings
Fig. 1 is a schematic perspective view of an embodiment of a contact device with arcing contacts provided in the present utility model in a separated state;
Fig. 2 is a schematic perspective view of the moving contact mechanism in fig. 1 (omitting a fixed bracket and a rotating bracket);
FIG. 3 is a schematic perspective view of the stationary contact mechanism of FIG. 1;
Fig. 4 is a schematic perspective view of the contact device with arcing contacts of fig. 1 in a closed state;
In the figure: 1-moving contact mechanism, 11-fixed support, 12-rotating support, 121-installation block, 122-connecting plate, 13-active contact, 14-moving arc contact, 15-first elastic piece, 16-fixed pin, 17-secondary moving contact, 18-fixed shaft, 19-flexible connection, 110-moving main busbar, 2-static contact mechanism, 21-static contact, 22-static arc contact and 23-static main busbar.
Detailed Description
The following detailed description of preferred embodiments of the utility model is made in connection with the accompanying drawings, which form a part hereof, and together with the description of the embodiments of the utility model, are used to explain the principles of the utility model and are not intended to limit the scope of the utility model.
Referring to fig. 1-4, the present utility model provides a contact device with an arc contact, which comprises a moving contact mechanism 1 and a fixed contact mechanism 2;
the movable contact mechanism 1 comprises a fixed support 11, a rotating support 12, a driving contact 13, a movable arc contact 14 and a first elastic piece 15, wherein the rotating support 12 is detachably hinged to the fixed support 11, the rotating support 12 is used for being connected with an operating mechanism, the operating mechanism is used for driving the rotating support 12 to rotate, the driving contact 13 is mounted on the rotating support 12, the movable arc contact 14 is hinged to the driving contact 13, one end of the first elastic piece 15 is connected with the rotating support 12, and the other end of the first elastic piece 15 is connected with the movable arc contact 14;
The static contact mechanism 2 comprises a static contact 21 matched with the active contact 13 and a static arc contact 22 matched with the movable arc contact 14, and the static arc contact 22 is detachably fixed on the static contact 21;
When the rotating bracket 12 rotates to a first preset position along a certain direction, the movable arc contact 1 starts to be abutted with the static arc contact 22, and when the rotating bracket 12 continues to rotate to a second preset position along the certain direction, the active contact 13 starts to be abutted with the static contact 21.
When in use, the operating mechanism executes a closing command, the operating mechanism drives the rotating bracket 12 to rotate, when the rotating bracket 12 rotates to a first preset position, the movable arc contact 1 starts to be abutted against the static arc contact 22, the rotating bracket 12 continues to rotate, the first elastic piece 15 is compressed, when the rotating bracket 12 continues to rotate in the same direction to a second preset position, the driving contact 13 starts to be abutted against the static contact 21, the closing action is completed, when the driving contact 13 contacts the static contact 21, the circuit is communicated, and no electric arc is generated; when the switch is opened, the operating mechanism executes a switch opening command, the operating mechanism drives the rotating bracket 12 to reversely rotate, at the moment, the active contact 13 is separated from the static contact 21, and the first elastic piece 15 is in a compressed state at the moment, so that when the active contact 13 is separated from the static contact 21, the moving arc contact 1 and the static arc contact 22 are in an abutting state, a circuit is not disconnected, no electric arc is generated, when the rotating bracket 12 continues to reversely rotate, after the first elastic piece 15 is restored to a natural length, the moving arc contact 1 and the static arc contact 22 are separated, at the moment, the circuit is disconnected, the generated electric arc only can be applied to the moving arc contact 1 and the static arc contact 22, the influence on the active contact 13 and the static contact 21 is avoided, the active contact 13 and the static contact 21 can be protected to the greatest extent, the excessive burning loss of the active arc contact 1 and the static arc contact 22 is avoided, the service life of the switch is influenced, and the moving arc contact 1 and the static arc contact 22 are both in a detachable installation, so that the switch is convenient to maintain.
In order to specifically implement the installation of the first elastic member 15, please refer to fig. 1 and 2, in a preferred embodiment, the moving arc contact 1 is provided with an elongated slot 11, the moving contact mechanism 1 further includes a fixing pin 16, the fixing pin 16 is inserted into the elongated slot 11, the tip of the fixing pin 16 is detachably connected to the rotating bracket 12, the first elastic member 15 is sleeved on the fixing pin 16, one end of the first elastic member 15 is abutted to the moving arc contact 1, and the other end of the first elastic member 15 is abutted to the rotating bracket 12, in this embodiment, by setting the elongated slot 11, the fixing pin 16 can move in the elongated slot 11 when the moving arc contact 1 is pushed.
In order to prevent the moving arcing contact 1 from being separated from the fixed pin 16, referring to fig. 1 and 2, in a preferred embodiment, the large end of the fixed pin 16 is used to abut against the moving arcing contact 1, so as to prevent the moving arcing contact 1 from being separated from the fixed pin 16, and in other embodiments, the fixed pin 16 may not be provided with a large end, as long as the length of the fixed pin 16 is enough to prevent the fixed pin 16 from being separated from the elongated slot 11 during the moving process.
In order to realize that the tip of the fixing pin 16 is detachably connected to the rotating bracket 12, referring to fig. 1 and 2, in a preferred embodiment, a mounting block 121 is fixed on the rotating bracket 12, a fixing screw hole is formed on the mounting block 121, and the tip thread of the fixing pin 16 is inserted into the fixing screw hole.
In order to specifically connect the operating mechanism to the rotating bracket 12, referring to fig. 1 and 2, in a preferred embodiment, a connecting plate 122 is fixed to the rotating bracket 12, and the connecting plate 122 is used for connecting with an output end of the operating mechanism.
In order to reduce the closing bounce, referring to fig. 1 and 2, in a preferred embodiment, the moving contact mechanism 1 further includes a plurality of secondary moving contacts 17 and a fixed shaft 18, and each of the secondary moving contacts 17 and the driving contact 13 is disposed on the fixed shaft 18 in a penetrating manner, so that the closing bounce phenomenon can be reduced by disposing a plurality of secondary moving contacts 17.
In order to reduce the contact resistance, referring to fig. 1 and 2, in a preferred embodiment, the active contact 13 is welded with a first silver contact, the secondary moving contact 17 is welded with a second silver contact, the moving arc contact 14 is welded with a third silver contact, the stationary contact 21 is welded with a fourth silver contact, and the stationary arc contact 22 is welded with a fifth silver contact.
In order to improve the contact tightness between the active contact 13 and the fixed contact 21, referring to fig. 1 and 2, in a preferred embodiment, the moving contact mechanism 1 further includes a second elastic member, one end of the second elastic member is connected to the rotating bracket 12, and the other end of the second elastic member is connected to the active contact 13, so that a pre-tightening force for compressing the active contact 13 and the fixed contact 21 can be provided by shrinking the second elastic member.
In order to specifically implement the power connection of the active contact 13, referring to fig. 1 and 2, in a preferred embodiment, the moving contact mechanism 1 further includes a flexible connection 19 and a moving main busbar 110, one end of the flexible connection 19 is electrically connected to the active contact 13, and the other end of the flexible connection 19 is electrically connected to the moving main busbar 110.
In order to specifically implement the electrical connection of the stationary contact 21, referring to fig. 1 and 3, in a preferred embodiment, the stationary contact mechanism 2 further includes a stationary main busbar 23, and the stationary main busbar 23 is electrically connected to the stationary contact 21.
For a better understanding of the present utility model, the following description will be given with reference to fig. 1 to 4 for a detailed description of the operation of the contact device with arcing contact according to the present utility model: when in use, the operating mechanism executes a closing command, the operating mechanism drives the rotating bracket 12 to rotate, when the rotating bracket 12 rotates to a first preset position, the movable arc contact 1 starts to be abutted against the static arc contact 22, the rotating bracket 12 continues to rotate, the first elastic piece 15 is compressed, when the rotating bracket 12 continues to rotate in the same direction to a second preset position, the driving contact 13 starts to be abutted against the static contact 21, the closing action is completed, when the driving contact 13 contacts the static contact 21, the circuit is communicated, and no electric arc is generated; when the switch is opened, the operating mechanism executes a switch opening command, the operating mechanism drives the rotating bracket 12 to reversely rotate, at the moment, the active contact 13 is separated from the static contact 21, and the first elastic piece 15 is in a compressed state at the moment, so that when the active contact 13 is separated from the static contact 21, the moving arc contact 1 and the static arc contact 22 are in an abutting state, a circuit is not disconnected, no electric arc is generated, when the rotating bracket 12 continues to reversely rotate, after the first elastic piece 15 is restored to a natural length, the moving arc contact 1 and the static arc contact 22 are separated, at the moment, the circuit is disconnected, the generated electric arc only can be applied to the moving arc contact 1 and the static arc contact 22, the influence on the active contact 13 and the static contact 21 is avoided, the active contact 13 and the static contact 21 can be protected to the greatest extent, the excessive burning loss of the active arc contact 1 and the static arc contact 22 is avoided, the service life of the switch is influenced, and the moving arc contact 1 and the static arc contact 22 are both in a detachable installation, so that the switch is convenient to maintain.
The foregoing is only a preferred embodiment of the present utility model, but the scope of the present utility model is not limited thereto, and any changes or substitutions easily contemplated by those skilled in the art within the technical scope of the present utility model should be included in the scope of the present utility model.
Claims (10)
1. The contact device with the arc contact is characterized by comprising a moving contact mechanism and a fixed contact mechanism;
The movable contact mechanism comprises a fixed support, a rotating support, a driving contact, a movable arc contact and a first elastic piece, wherein the rotating support is detachably hinged to the fixed support, the rotating support is used for being connected with an operating mechanism, the operating mechanism is used for driving the rotating support to rotate, the driving contact is installed on the rotating support, the movable arc contact is hinged to the driving contact, one end of the first elastic piece is connected with the rotating support, and the other end of the first elastic piece is connected with the movable arc contact;
The static contact mechanism comprises a static contact matched with the active contact and a static arc contact matched with the movable arc contact, and the static arc contact is detachably fixed on the static contact;
when the rotating support rotates to a first preset position in a certain direction, the movable arc contact starts to be abutted with the static arc contact, and when the rotating support continues to rotate to a second preset position in the certain direction, the driving contact starts to be abutted with the static contact.
2. The contact device with the arcing contact according to claim 1, wherein the moving arcing contact is provided with a long groove, the moving contact mechanism further comprises a fixed pin, the fixed pin is inserted into the long groove, the tip of the fixed pin is detachably connected to the rotating bracket, the first elastic piece is sleeved on the fixed pin, one end of the first elastic piece is abutted to the moving arcing contact, and the other end of the first elastic piece is abutted to the rotating bracket.
3. The contact device with arcing contact of claim 2, wherein the large end of the fixed pin is configured to abut against the moving arcing contact, thereby preventing the moving arcing contact from being separated from the fixed pin.
4. The contact device with the arcing contact according to claim 2, wherein a mounting block is fixed on the rotating bracket, a fixing screw hole is formed in the mounting block, and a tip thread of the fixing pin is inserted into the fixing screw hole.
5. The contact device with arcing contact of claim 1, wherein a connection plate is fixed on the rotating bracket, and the connection plate is used for being connected with an output end of the operating mechanism.
6. The contact device with the arcing contact according to claim 1, wherein the moving contact mechanism further comprises a plurality of secondary moving contacts and a fixed shaft, each of the secondary moving contacts and the driving contact is arranged on the fixed shaft in a penetrating manner, so that the closing bounce phenomenon can be reduced by arranging a plurality of secondary moving contacts.
7. The contact device with arc contact according to claim 6, wherein a first silver contact is welded on the active contact, a second silver contact is welded on the secondary moving contact, a third silver contact is welded on the moving arc contact, a fourth silver contact is welded on the stationary contact, and a fifth silver contact is welded on the stationary contact.
8. The contact device with arcing contact of claim 1, wherein the moving contact mechanism further comprises a second elastic member, one end of the second elastic member is connected with the rotating bracket, and the other end of the second elastic member is connected with the active contact.
9. The contact device with arcing contact according to claim 1, wherein the moving contact mechanism further comprises a flexible connection and a moving main busbar, one end of the flexible connection is electrically connected with the active contact, and the other end of the flexible connection is electrically connected with the moving main busbar.
10. The contact arrangement with arcing contact of claim 1, wherein the stationary contact mechanism further comprises a stationary main busbar, the stationary main busbar being electrically connected with the stationary contact.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322394242.0U CN220933994U (en) | 2023-09-01 | 2023-09-01 | Contact device with arc contact |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322394242.0U CN220933994U (en) | 2023-09-01 | 2023-09-01 | Contact device with arc contact |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220933994U true CN220933994U (en) | 2024-05-10 |
Family
ID=90963989
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322394242.0U Active CN220933994U (en) | 2023-09-01 | 2023-09-01 | Contact device with arc contact |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220933994U (en) |
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2023
- 2023-09-01 CN CN202322394242.0U patent/CN220933994U/en active Active
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