CN217641013U - Change-over switch and moving contact thereof - Google Patents
Change-over switch and moving contact thereof Download PDFInfo
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- CN217641013U CN217641013U CN202221840996.3U CN202221840996U CN217641013U CN 217641013 U CN217641013 U CN 217641013U CN 202221840996 U CN202221840996 U CN 202221840996U CN 217641013 U CN217641013 U CN 217641013U
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- mounting groove
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- moving contact
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Abstract
The utility model discloses a moving contact of a change-over switch, which comprises a rotating shaft and a metal sheet; the rotating shaft is provided with a mounting groove, and the bottom of the mounting groove is provided with a first positioning part; the metal sheet is inserted into the mounting groove and provided with a second positioning part; the second positioning part is meshed with the first positioning part; wherein, the first locating part deviates from the center of the installation groove along the extending direction of the first locating part. Among the above-mentioned moving contact, the skew center department of this mounting groove along self extending direction of first location portion in the mounting groove makes protruding orientation dress when the anti-sheetmetal inserts the mounting groove, and second location portion keeps away from each other and unable interlock with first location portion, leads to the unable cartridge of sheetmetal to target in place, realizes avoiding the protruding orientation dress of sheetmetal to be anti-, guarantees the protruding reliable contact static contact of sheetmetal, change over switch ability normal use. The utility model discloses still disclose the change over switch of using above-mentioned moving contact.
Description
Technical Field
The utility model relates to a switching apparatus technical field, more specifically say, relate to a change over switch's moving contact, still relate to a change over switch.
Background
The change-over switch is a switching electric appliance product for switching two power supplies or loads. In electrical equipment, change-over switches are often used to make and break electrical circuits infrequently.
Referring to fig. 1-6, the moving contact of the transfer switch includes a rotating shaft 11 and a strip-shaped metal sheet 13, the rotating shaft 11 is provided with an installation groove 12, and the extending direction of the installation groove 12 is perpendicular to the axial direction of the rotating shaft 11; the groove bottom of the mounting groove 12 is provided with a positioning rib 121, the edge of the metal sheet 13 is provided with a positioning groove 132, and when the metal sheet 13 is inserted into the mounting groove 12, the positioning rib 121 is clamped into the positioning groove 132 to position the metal sheet 13. The two mounting grooves 12 are arranged at intervals along the axial direction of the shaft body 11; the number of the metal sheets 13 is two, and the metal sheets are inserted and matched with different mounting grooves 12. One side surface of the metal sheet 13 is provided with a protrusion 131, and the protrusion 131 is required to face a gap between two mounting grooves 12, as shown in fig. 3. When the switch works, the rotating shaft 11 can rotate to a state that the fixed contact of the change-over switch is positioned at the gap between the two mounting grooves 12, and at the moment, the bulge 131 of the two metal sheets 13 clamps the fixed contact so as to realize the connection of the movable contact and the fixed contact.
However, the positioning rib 121 is disposed in the center along the extending direction of the mounting groove 12, and the protrusion 131 of the metal sheet 13 is often installed reversely, as shown in fig. 4-6, the protrusion 131 deviates from the gap between the two mounting grooves 12, and then the static contact cannot be reliably contacted, so that the transfer switch cannot be normally used.
Therefore, how to avoid the protrusion of the metal sheet in the moving contact from being reversely installed and ensure the normal use of the change-over switch is a problem to be solved urgently by the technical personnel in the field.
SUMMERY OF THE UTILITY MODEL
In view of this, the utility model provides a change over switch's moving contact, first location portion is skew in its mounting groove the mounting groove is along self extending direction's center department, makes protruding orientation dress reverse sheetmetal insert the mounting groove after, second location portion and first location portion keep away from each other and unable interlock, lead to the unable cartridge of sheetmetal to target in place, realize avoiding the protruding orientation dress of sheetmetal to turn over, guarantee the protruding reliable contact static contact of sheetmetal, change over switch can normal use. The utility model also provides an use the change over switch of above-mentioned moving contact, avoid the protruding orientation dress of sheetmetal in the moving contact on the contrary unable reliable contact static contact ensures normal work.
In order to achieve the above purpose, the utility model provides a following technical scheme:
a movable contact for a transfer switch, comprising:
the rotating shaft is provided with a mounting groove, and a first positioning part is arranged at the bottom of the mounting groove;
the metal sheet is inserted into the mounting groove and provided with a second positioning part; the second positioning part is mutually meshed with the first positioning part;
wherein, the first positioning part is deviated from the center of the installation groove along the extending direction of the installation groove.
Preferably, in the moving contact, two mounting grooves are arranged at intervals; the number of the metal sheets is two, and the metal sheets are respectively inserted into the two mounting grooves.
Preferably, in the moving contact, the protrusions of the two metal sheets are arranged oppositely, and a gap for accommodating a fixed contact of the change-over switch is left between the two metal sheets.
Preferably, in the above movable contact, the first positioning portion in the first mounting groove deviates from the center of the mounting groove along one direction, and the first positioning portion in the second mounting groove deviates from the center of the mounting groove along another direction.
Preferably, in the moving contact, a distance from the first positioning portion in the first mounting groove to the center of the first mounting groove is equal to a distance from the first positioning portion in the second mounting groove to the center of the second mounting groove.
Preferably, in the moving contact, the first positioning portions of the two mounting grooves have the same structure.
Preferably, in the moving contact, the first positioning portion is a positioning rib, and the second positioning portion is a positioning groove.
Preferably, in the moving contact, two protrusions are arranged on the surface of each metal sheet opposite to the other metal sheet, and the two protrusions are distributed at two ends of the metal sheet.
A change-over switch comprises a moving contact and a static contact, wherein the moving contact is the moving contact in any one of the technical schemes; when the rotating shaft rotates to a preset position, the metal sheet is connected with the static contact, and when the rotating shaft rotates to deviate from the preset position, the metal sheet is disconnected with the static contact.
Preferably, in the change-over switch, the protrusions of the metal sheets in the two mounting grooves in the moving contact are oppositely arranged, and a gap is reserved between the two metal sheets; when the moving contact rotates to a preset position, the fixed contact is located at the gap, and the protrusion abuts against the fixed contact.
The utility model provides a moving contact of a change-over switch, which comprises a rotating shaft and a metal sheet; the rotating shaft is provided with a mounting groove, and the bottom of the mounting groove is provided with a first positioning part; the metal sheet is inserted into the mounting groove and provided with a second positioning part; the second positioning part is meshed with the first positioning part; wherein, the first locating part deviates from the center of the installation groove along the extending direction of the first locating part.
The utility model provides an among the moving contact, the skew this mounting groove of first location portion is located along self extending direction's center in the mounting groove, when inserting the mounting groove with protruding orientation dress anti-metal sheet, second location portion and first location portion keep away from each other and unable interlock, lead to the unable cartridge of sheetmetal to target in place, thereby remind in the protruding orientation back reinsertion mounting groove of staff adjustment sheetmetal, the realization is avoided the protruding orientation dress of sheetmetal to be anti-reverse, guarantee the protruding reliable contact static contact of sheetmetal, change over switch can normal use.
The utility model also provides an use the change over switch of above-mentioned moving contact, avoid the protruding orientation dress of sheetmetal in the moving contact on the contrary unable reliable contact static contact, ensure normal work.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a schematic view of a rotating shaft in the prior art;
FIG. 2 is a schematic diagram of a metal sheet according to the prior art;
FIG. 3 is a schematic view of the assembly of a rotating shaft and a metal sheet in the prior art;
fig. 4 is a schematic view of a prior art moving contact with a metal sheet having a reverse convex orientation;
fig. 5 is a schematic view of a prior art movable contact with a convex orientation of another metal sheet;
fig. 6 is a schematic view of two metal sheets of a movable contact in the prior art, wherein the convex directions of the two metal sheets are reversed;
fig. 7 is an assembly schematic view of a rotating shaft and a mounting groove provided in the embodiment of the present invention;
fig. 8 is a schematic structural diagram of a metal sheet provided in an embodiment of the present invention;
FIG. 9 is a rear view of the metal sheet shown in FIG. 8;
fig. 10 is a schematic structural diagram of a movable contact according to an embodiment of the present invention;
wherein, in fig. 7-10:
a rotating shaft 101; a mounting groove 102; a first positioning section 1021; a metal sheet 103; a second positioning portion 1031; and a projection 1032.
Detailed Description
The embodiment of the utility model discloses change over switch's moving contact, the skew mounting groove of first location portion is along self extending direction's center department in its mounting groove, makes protruding orientation adorn anti-sheetmetal insert the mounting groove after, second location portion and first location portion keep away from each other and unable interlock, lead to the unable cartridge of sheetmetal to target in place, realize avoiding the protruding orientation dress of sheetmetal to turn over, guarantee the protruding reliable contact static contact of sheetmetal, change over switch can normal use. The embodiment of the utility model provides a still provide a change over switch who uses above-mentioned moving contact, the protruding orientation dress of avoiding the sheet metal in the moving contact can't reliably contact the static contact on the contrary, ensures normal work.
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts all belong to the protection scope of the present invention.
Referring to fig. 7-10, an embodiment of the present invention provides a moving contact of a transfer switch, including a rotating shaft 101 and a metal sheet 103; the rotating shaft 101 is provided with a mounting groove 102, and the bottom of the mounting groove 102 is provided with a first positioning part 1021; the metal sheet 103 is inserted into the mounting groove 102, and the metal sheet 103 is provided with a second positioning part 1031; the second positioning part 1031 is engaged with the first positioning part 1021; wherein, the first positioning portion 1021 is deviated from the center of the mounting groove 102 along the extending direction thereof. The mounting groove 102 extends in a direction perpendicular to the axial direction of the rotating shaft 101.
The moving contact is provided with a protrusion 1032 on one side surface of the metal sheet 103, and when the rotating shaft 101 rotates to a preset position, the protrusion 1032 is in close contact with a fixed contact of the change-over switch, so that the moving contact and the fixed contact are switched on. However, if the direction of the protrusion 1032 is reversed, when the rotating shaft 101 rotates to the preset position, the protrusion 1032 is in a state of deviating from the fixed contact, and the connection of the fixed contact and the movable contact cannot be guaranteed. In the movable contact provided by this embodiment, the first positioning portion 1021 in the mounting groove 102 deviates from the center of the mounting groove 102 along the extending direction of the mounting groove 102, and when the protrusion 1032 is inserted into the mounting groove 102 towards the inversely installed metal sheet 103, the second positioning portion 1031 and the first positioning portion 1021 are away from each other and cannot be engaged with each other, so that the metal sheet 103 cannot be inserted in place, and therefore the worker is reminded to adjust the protrusion 1032 of the metal sheet 103 to be inserted into the mounting groove again towards the rear, thereby preventing the protrusion 1032 of the metal sheet 103 from being inversely installed, ensuring that the protrusion 1032 of the metal sheet 103 reliably contacts the fixed contact, and ensuring that the transfer switch can be used normally.
Specifically, in the movable contact, the second positioning portion 1031 is disposed on the edge of the metal sheet 103 close to the bottom of the mounting groove 102.
The number of the mounting grooves 102 is two, and the two mounting grooves are arranged at intervals; the number of the metal sheets 103 is two, and the metal sheets are respectively inserted into the two mounting grooves 102. The extending directions of the two mounting grooves 102 are parallel. The protrusion 1032 of the metal sheet 103 in each mounting groove 102 faces the metal sheet 103 in another mounting groove 102, so that the protrusions 1032 of the metal sheets 103 in the two mounting grooves 102 face each other, and when the rotating shaft 101 rotates to a preset position, the protrusions 1032 of the metal sheets 103 in the two mounting grooves 102 simultaneously clamp the fixed contact, so that the fixed contact is reliably connected.
In this embodiment, the protrusions 1032 of the two metal sheets 103 are arranged oppositely, and a gap for accommodating the fixed contact is left between the two metal sheets 103, so that the protrusions of the two metal sheets can tightly contact the fixed contact from two sides at the same time, and the reliability of the connection of the moving contact and the fixed contact is improved.
Of the two mounting grooves 102, the first positioning portion 1021 in the first mounting groove is offset from the center of the mounting groove along the extending direction thereof in one direction, and the first positioning portion 1021 in the second mounting groove is offset from the center of the mounting groove along the extending direction thereof in the other direction, as shown in fig. 7.
Further, a distance L1 of the first positioning portion 1021 in the first mounting groove from the center of the first mounting groove in the extending direction of the first mounting groove is equal to a distance L2 of the first positioning portion 1021 in the second mounting groove from the center of the second mounting groove in the extending direction of the second mounting groove.
In the moving contact, the first positioning parts 1021 of the two mounting grooves 102 have the same structure.
In the moving contact provided by the embodiment, the first positioning parts 1021 in the two mounting grooves 102 deviate from the centers of the mounting grooves in different directions, the deviating distances L1 and L2 are equal, and the structures of the first positioning parts 1021 in the two mounting grooves 102 are the same, so that the metal sheets 103 in the same shape and size can be respectively assembled in the two mounting grooves 102, the specifications of the metal sheets 103 are unified, and the production and the manufacturing are convenient.
Of course, the first positioning portions 1021 in the two mounting grooves 102 may also deviate from the center of the mounting groove 102 along the same direction, the deviation distances L1 and L2 may be different, the structures of the first positioning portions 1021 in the two mounting grooves 102 may also be different, and only two metal sheets 103 with different specifications need to be configured to be respectively inserted into the two mounting grooves 102, which is not limited in this embodiment.
Specifically, in the movable contact, the first positioning portions 1021 in the two mounting grooves 102 are respectively positioning ribs, and the second positioning portions 1031 of the two metal sheets 103 are respectively positioning grooves. Of course, the first positioning portions 1021 in the two mounting grooves 102 may also be respectively provided as positioning grooves, and correspondingly, the second positioning portions 1031 of the two metal sheets 103 are respectively positioning ribs, and the structure of the first and second positioning portions is not limited in this embodiment, and only the metal sheets 103 need to be engaged with each other to realize positioning.
Two protrusions 1032 are specifically disposed on one side surface of the metal sheet 103, and the two protrusions 1032 are distributed at two ends of the metal sheet 103 (where the two ends are two ends of the metal sheet 103 along the extending direction of the mounting groove 102). When the rotating shaft 101 rotates to a preset position, the two protrusions 1032 of each metal sheet 103 are respectively in close contact with different fixed contacts; when the rotating shaft 101 rotates to deviate from the preset position, the two protrusions 1032 of the metal sheet 103 are respectively separated from the corresponding static contacts.
In this embodiment, the moving contact can be simultaneously connected with and disconnected from the two fixed contacts, thereby forming a "double-breakpoint" structure.
The embodiment of the utility model also provides a change-over switch, including moving contact and static contact, the moving contact is the moving contact that the above-mentioned embodiment provided; when the rotating shaft 101 rotates to a preset position, the metal sheet 103 is connected with the fixed contact, and when the rotating shaft 101 rotates to a position deviated from the preset position, the metal sheet 103 is disconnected with the fixed contact.
Specifically, the protrusions 1032 of the metal sheets 103 in the two mounting grooves 102 in the moving contact are oppositely arranged, and a gap is reserved between the two metal sheets 103; when the moving contact rotates to a preset position, the fixed contact is located at the gap, and the protrusion 1032 of the metal sheet 103 abuts against the fixed contact.
The embodiment of the utility model provides a change over switch uses the moving contact that above-mentioned embodiment provided, can avoid in the moving contact the arch 1032 orientation dress of sheetmetal 103 on the contrary unable reliable contact static contact, ensures normal work. Certainly, the change-over switch provided by this embodiment also has other effects related to the moving contact provided by the above embodiments, and details are not described herein.
In the present specification, the embodiments are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (10)
1. A movable contact of a change-over switch is characterized by comprising:
the rotating shaft is provided with a mounting groove, and a first positioning part is arranged at the bottom of the mounting groove;
the metal sheet is inserted into the mounting groove and provided with a second positioning part; the second positioning part is mutually meshed with the first positioning part;
wherein, the first positioning part is deviated from the center of the installation groove along the extending direction of the installation groove.
2. The movable contact according to claim 1, wherein the number of the mounting slots is two, and the mounting slots are spaced apart from each other; the number of the metal sheets is two, and the metal sheets are respectively inserted into the two mounting grooves.
3. The movable contact according to claim 2, wherein the protrusions of the two metal sheets are disposed opposite to each other, and a gap for accommodating a stationary contact of the transfer switch is left between the two metal sheets.
4. The movable contact of claim 2 wherein the first detent in the first mounting slot is offset from the center of the mounting slot in one direction and the first detent in the second mounting slot is offset from the center of the mounting slot in another direction.
5. The movable contact of claim 4, wherein a distance of a first positioning portion of the first mounting slot from the center of the first mounting slot is equal to a distance of a first positioning portion of the second mounting slot from the center of the second mounting slot.
6. The movable contact according to any of claims 1-5 wherein the first positioning portions of the two mounting slots have the same structure.
7. The movable contact of claim 5 wherein said first detent is a detent rib and said second detent is a detent.
8. The movable contact of claim 3 wherein each of said metal sheets has two protrusions formed on a surface thereof opposite to the other of said metal sheets, and said two protrusions are disposed at two ends of said one of said metal sheets.
9. A change-over switch, comprising a moving contact and a fixed contact, wherein the moving contact is the moving contact of any one of claims 1 to 8; when the rotating shaft rotates to a preset position, the metal sheet is connected with the static contact, and when the rotating shaft rotates to deviate from the preset position, the metal sheet is disconnected with the static contact.
10. The transfer switch of claim 9, wherein the protrusions of the metal sheets in the two mounting slots of the movable contact are oppositely disposed, and a gap is left between the two metal sheets; when the moving contact rotates to the preset position, the fixed contact is located at the gap, and the protrusion abuts against the fixed contact.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221840996.3U CN217641013U (en) | 2022-07-15 | 2022-07-15 | Change-over switch and moving contact thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221840996.3U CN217641013U (en) | 2022-07-15 | 2022-07-15 | Change-over switch and moving contact thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217641013U true CN217641013U (en) | 2022-10-21 |
Family
ID=83634334
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221840996.3U Active CN217641013U (en) | 2022-07-15 | 2022-07-15 | Change-over switch and moving contact thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217641013U (en) |
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2022
- 2022-07-15 CN CN202221840996.3U patent/CN217641013U/en active Active
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