CN214477236U - Contactor with screw movable limiting - Google Patents
Contactor with screw movable limiting Download PDFInfo
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- CN214477236U CN214477236U CN202120826179.1U CN202120826179U CN214477236U CN 214477236 U CN214477236 U CN 214477236U CN 202120826179 U CN202120826179 U CN 202120826179U CN 214477236 U CN214477236 U CN 214477236U
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Abstract
The utility model relates to a take spacing contactor of screw activity, including left casing and right casing and the electromagnetic system of setting between the two, lower extreme between left casing and the right casing is provided with middle casing, left side casing, middle casing and the mutual concatenation of right casing form, the junction of left side casing and right casing, the junction of left side casing and middle casing, the junction of right side casing and middle casing all forms the terminal chamber, the terminal intracavity all is provided with binding post, binding post includes the connection frame, connect the screw on the connection frame, the inner wall of terminal chamber forms annular boss, form the through-hole in the middle of the annular boss, the connection frame sets up in annular boss below, the screw rod of screw passes the through-hole and is connected with the connection frame, the nut of screw is located annular boss top, the nut diameter of screw is greater than the internal diameter of through-hole. The utility model discloses can avoid connecting the foot and connecting the bridge and take place deformation during contactor wiring, guarantee reliability and stability that the contactor electricity is connected.
Description
Technical Field
The utility model relates to a contactor especially relates to a take spacing contactor of screw activity.
Background
The working mode of the contactor is that a coil of the contactor is electrified, the coil is electrified to generate a magnetic field, the magnetic field enables the static iron core and the movable iron core to generate magnetic force and attract each other, the normally open contact is closed to control the conduction of a load, after the coil is electrified, the magnetic force between the static iron core and the movable iron core disappears, the movable iron core resets under the action of a spring, and the normally open contact is disconnected.
The existing contactor has the following defects: 1. the contactor realizes the compression joint of the wire through the matching of the screw and the wiring frame, if the contactor is excessively screwed, the wiring frame or the wiring contact bridge or the wiring pin is easily deformed (the connection pin is connected to the coil wiring terminal, and the connection bridge is connected to the contact wiring terminal), after the contactor is excessively screwed for a long time, the service life of the wiring terminal is shortened, and the phenomenon that the contact is poor after the wiring of the terminal is finished, and the normal work of a loop is influenced is easily caused; 2. the coil wiring terminal is not large enough with the elastic wiring connection area of electromagnetic system, leads to the unreliable technical problem of electromagnetic system circular telegram.
Disclosure of Invention
In view of this, the utility model aims at providing a take spacing contactor of screw activity protects binding post not to take place deformation when the wire electricity is connected, promotes binding post life, and increases the area of contact between coil binding post and the electromagnetic system, guarantees the reliability of electricity connection.
In order to achieve the above purpose, the utility model adopts the contactor with the screw movable limit, which comprises a left shell and a right shell and an electromagnetic system arranged between the left shell and the right shell, the lower end between the left shell and the right shell is provided with a middle shell, the left shell, the middle shell and the right shell are spliced with each other, terminal cavities are formed at the joint of the left shell and the right shell, the joint of the left shell and the middle shell and the joint of the right shell and the middle shell, the terminal cavities are all provided with wiring terminals which comprise wiring frames and screws connected with the wiring frames, the inner wall of the terminal cavity forms an annular boss, a through hole is formed in the middle of the annular boss, the wiring frame is arranged below the annular boss, the screw rod of the screw penetrates through the through hole to be connected with the wiring frame, the nut of the screw is located above the annular boss, and the diameter of the nut of the screw is larger than the inner diameter of the through hole.
The annular boss is formed by splicing the left shell, the right shell and the middle shell in pairs and is arranged in the terminal cavity, so that the nut of the screw is limited in the stroke, the screw cannot be excessively extruded to a connecting pin or a connecting bridge when being screwed down, the deformation of the screw is avoided, the service life of a relevant connecting part is prolonged, and the reliability and the stability of electric connection of the contactor are ensured.
The utility model discloses what further set up to the terminal intracavity between left casing and the right casing is that coil binding post is set up, coil binding post includes first coil binding post and second coil binding post, and what set up in the terminal intracavity between left casing and the middle casing and between right casing and the middle casing is contact binding post.
The utility model is further arranged in that the electromagnetic system comprises a coil frame, a coil wound on the coil frame, a first elastic connecting sheet connected on the coil frame, and a second elastic connecting sheet connected on the coil frame, wherein the first elastic connecting sheet and the second elastic connecting sheet are respectively electrically connected with two ends of the coil, a first connecting pin is connected on the first coil connecting terminal, the first connecting pin comprises a first crimping part, a first supporting part and a first connecting part, the first crimping part is connected in the first coil connecting terminal, the first supporting part is arranged at the bottom of the terminal cavity, a vertical connecting surface is formed on the first connecting part, one end of the first elastic connecting sheet is connected on the vertical connecting surface, a second connecting pin is connected on the second coil connecting terminal, the second connecting pin comprises a second crimping part, a second supporting part and a second connecting part, the second crimping part is connected in the second coil wiring terminal, the second supporting part is arranged at the bottom of the terminal cavity, a horizontal connecting surface is formed on the second connecting part, and one end of the second elastic connecting piece is connected on the horizontal connecting surface.
The utility model is further arranged that the elastic force of the first elastic connecting piece acts towards the vertical connecting surface.
This practicality further sets up to the elasticity of second elastic connection piece is towards the horizontal joint face effect.
The structure of above-mentioned first connection foot and second connection foot is for both to be connected better with first elastic connection piece and second elastic connection piece respectively, has increased the area of contact between connection foot and the elastic connection piece moreover, reliability and the stability of work when guaranteeing the circular telegram of electromagnetic system.
Drawings
Fig. 1 is an exploded view of an embodiment of the present invention.
Fig. 2 is a top view of an embodiment of the present invention.
Fig. 3 is a cross-sectional view a-a of fig. 2.
Fig. 4 is a sectional view of B-B in fig. 2.
Fig. 5 is a perspective view of the embodiment of the present invention with the right housing removed.
Fig. 6 is a perspective view of the first coil connecting terminal and the first connecting pin according to the embodiment of the present invention.
Fig. 7 is a perspective view of the second coil connecting terminal and the second connecting pin according to an embodiment of the present invention.
Detailed Description
As shown in fig. 1-4, the utility model relates to a contactor with screw movable limit, which comprises a left shell 1 and a right shell 2 and an electromagnetic system 6 arranged between the two, a middle shell 3 is arranged at the lower end between the left shell 1 and the right shell 2, the left shell 1, the middle shell 3 and the right shell 2 are spliced with each other, the joint of the left shell 1 and the right shell 2, the joint of the left shell 1 and the middle shell 3, and the joint of the right shell 2 and the middle shell 3 all form a terminal cavity 4, a terminal block 5 is arranged in the terminal cavity 4, the terminal block 5 comprises a wiring frame 51 and a screw 52 connected on the wiring frame 51, the inner wall of the terminal cavity 4 forms an annular boss 41, a through hole 42 is formed in the middle of the annular boss 41, the wiring frame 51 is arranged below the annular boss 41, the screw of the screw 52 passes through hole 42 and is connected with the wiring frame 51, the nut of the screw 52 is located above the annular boss 41, and the nut diameter of the screw 52 is larger than the inner diameter of the through hole 42.
As shown in fig. 1, 5, 6, and 7, a coil connecting terminal 5a is arranged in a terminal cavity 4 between the left casing 1 and the right casing 2, the coil connecting terminal 5a includes a first coil connecting terminal 5a1 and a second coil connecting terminal 5a2, and a contact connecting terminal 5b is arranged in the terminal cavity 4 between the left casing 1 and the middle casing 3 and the terminal cavity 4 between the right casing 2 and the middle casing 3, the electromagnetic system 6 includes a coil frame 61, a coil 62 wound on the coil frame 61, a first elastic connecting piece 63 connected on the coil frame 61, and a second elastic connecting piece 64 connected on the coil frame 61, the first elastic connecting piece 63 and the second elastic connecting piece 64 are respectively electrically connected with two ends of the coil 62, a first connecting pin 7 is connected on the first coil connecting terminal 5a1, and the first connecting pin 7 includes a first crimping part 71, A first supporting portion 72, a first connecting portion 73, said first crimping portion 71 being connected within the first coil terminal 5a1, the first supporting portion 72 being disposed at the bottom of the terminal chamber 4, the first connecting portion 73 having a vertical connecting surface 731 formed thereon, one end of the first elastic connecting piece 63 being connected to the vertical connecting surface 731, the elastic force of the first elastic connecting piece 63 is applied to the vertical connecting surface 731, the second coil connecting terminal 5a2 is connected to the second connecting pin 8, the second connecting leg 8 comprises a second press-connecting part 81, a second supporting part 82 and a second connecting part 83, the second press contact part 81 is connected in the second coil terminal 5a2, the second support part 82 is provided at the bottom of the terminal chamber 4, a horizontal connection surface 831 is formed on the second connection part 83, one end of the second elastic connection piece 64 is connected to the horizontal connection surface 831, and the elastic force of the second elastic connection piece 64 is applied toward the horizontal connection surface 831.
In addition to the above embodiments, there are also other embodiments of the present invention, and those skilled in the art can make various corresponding changes and modifications according to the present invention without departing from the spirit and scope of the present invention, and those changes and modifications are equivalent to the technical solutions in the present patent, and then those corresponding changes and modifications are all within the scope of the appended claims.
Claims (5)
1. The utility model provides a take spacing contactor of screw activity which characterized in that: including left casing and right casing and the electromagnetic system of setting between the two, lower extreme between left side casing and the right casing is provided with middle casing, and left casing, middle casing and the right casing are spliced each other and are formed, left side casing and right casing's junction, left casing and middle casing's junction, right casing all form the terminal chamber with the junction of middle casing, the terminal intracavity all is provided with binding post, binding post includes the connection frame, connects the screw on the connection frame, the inner wall of terminal chamber forms annular boss, forms the through-hole in the middle of the annular boss, the connection frame sets up in annular boss below, the screw rod of screw passes the through-hole and is connected with the connection frame, and the nut of screw is located annular boss top, and the nut diameter of screw is greater than the internal diameter of through-hole.
2. The contactor with screw movable limit according to claim 1, characterized in that: what set up in the terminal cavity between left side casing and the right side casing is coil binding post, coil binding post includes first coil binding post and second coil binding post, and what set up in the terminal cavity between left side casing and the middle casing and the terminal cavity between right side casing and the middle casing is contact binding post.
3. The contactor with screw movable limit according to claim 2, characterized in that: the electromagnetic system comprises a coil framework, a coil wound on the coil framework, a first elastic connecting sheet connected on the coil framework and a second elastic connecting sheet connected on the coil framework, wherein the first elastic connecting sheet and the second elastic connecting sheet are respectively and electrically connected with two ends of the coil, a first connecting pin is connected on the first coil connecting terminal and comprises a first crimping part, a first supporting part and a first connecting part, the first crimping part is connected in the first coil connecting terminal, the first supporting part is arranged at the bottom of a terminal cavity, a vertical connecting surface is formed on the first connecting part, one end of the first elastic connecting sheet is connected on the vertical connecting surface, a second connecting pin is connected on the second coil connecting terminal and comprises a second crimping part, a second supporting part and a second connecting part, and the second crimping part is connected in the second coil connecting terminal, the second supporting part is arranged at the bottom of the terminal cavity, a horizontal connecting surface is formed on the second connecting part, and one end of the second elastic connecting piece is connected to the horizontal connecting surface.
4. The contactor with screw movable limit according to claim 3, characterized in that: the elastic force of the first elastic connecting piece acts towards the vertical connecting surface.
5. The contactor with screw movable limit according to claim 3, characterized in that: the elastic force of the second elastic connecting piece acts towards the horizontal connecting surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120826179.1U CN214477236U (en) | 2021-04-21 | 2021-04-21 | Contactor with screw movable limiting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120826179.1U CN214477236U (en) | 2021-04-21 | 2021-04-21 | Contactor with screw movable limiting |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214477236U true CN214477236U (en) | 2021-10-22 |
Family
ID=78180313
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120826179.1U Active CN214477236U (en) | 2021-04-21 | 2021-04-21 | Contactor with screw movable limiting |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214477236U (en) |
-
2021
- 2021-04-21 CN CN202120826179.1U patent/CN214477236U/en active Active
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