CN219759429U - Rotary switch for middle moment output - Google Patents
Rotary switch for middle moment output Download PDFInfo
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- CN219759429U CN219759429U CN202320585958.6U CN202320585958U CN219759429U CN 219759429 U CN219759429 U CN 219759429U CN 202320585958 U CN202320585958 U CN 202320585958U CN 219759429 U CN219759429 U CN 219759429U
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- 230000007246 mechanism Effects 0.000 claims abstract description 89
- 230000033001 locomotion Effects 0.000 claims abstract description 77
- 238000004146 energy storage Methods 0.000 claims description 13
- 230000009471 action Effects 0.000 claims description 3
- 230000000712 assembly Effects 0.000 claims description 2
- 238000000429 assembly Methods 0.000 claims description 2
- 238000000034 method Methods 0.000 claims 1
- 230000008859 change Effects 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000014509 gene expression Effects 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
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- Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
Abstract
The utility model relates to a rotary switch for outputting middle moment, which comprises a knob, a plurality of switch units and a free tripping mechanism, wherein the switch units are divided into two groups to form a first switch unit group consisting of at least one switch unit and a second switch unit group consisting of at least one unit; the free tripping mechanism is provided with a first rotary motion output end and a second rotary motion output end along the two ends of the first direction, the knob, the first switch unit group, the free tripping mechanism and the second switch unit group are sequentially stacked, the first rotary motion output end is in linkage fit with the moving contact assembly of the first switch unit group, and the second rotary motion output end is in linkage fit with the moving contact assembly of the second switch unit group. According to the utility model, the output of the rotation moment and the quick tripping and breaking are realized through the free tripping mechanism arranged between the first switch unit group and the second switch unit group, so that the transmission efficiency and the synchronism of the moment during the switching-on and switching-off are effectively improved.
Description
Technical Field
The utility model relates to a rotary switch for outputting middle moment.
Background
The rotary switch is used as an isolating switch, and when the rotary switch is in a switching-off position, an insulating distance meeting the specified requirement is required between the movable contact and the static contact. At present, a conventional rotary switch comprises an operating mechanism and an on-off device, wherein the on-off device comprises a multi-layer structure, each layer comprises a shell, a moving contact assembly and a fixed contact, the moving contact assembly and the fixed contact are positioned in the shell and used for switching on and off, and the moving contact of each layer is driven by the operating mechanism to rotate around the same rotation axis, so that the switching of a circuit is realized. Patent 202111212394.3 discloses a switch comprising: the contact assembly comprises a fixed part and a movable part, wherein the fixed part is arranged on the periphery of the movable part, the fixed part is provided with a fixed contact, the movable part is provided with a movable contact, the movable part is provided with a central shaft, the central shaft extends along a first direction, and the movable part can rotate by taking the central shaft as a center; the knob is used for driving the moving contact and the fixed contact to be switched on or off; and the free tripping structure is arranged between the knob and the contact assembly in a stacking manner along the first direction and comprises a tripper and a transmission structure, the transmission structure comprises a connecting rod structure and a trip piece, the connecting rod structure is connected between the trip piece and the movable part, the trip piece is matched with the tripper, and the tripper is used for receiving a brake separating signal sent by a control unit in a power supply system so as to realize the tripping of the tripper and the trip piece, and the trip piece drives the connecting rod structure to move so as to separate the movable contact from the fixed contact. Specifically, transmission structures (gear transmission structures and connecting rod transmission structures) are arranged between two sides of the free tripping structure and the contact assembly and the knob respectively, so that the transmission of rotary motion input of the knob to arc motion input of the free tripping structure and the transmission of arc motion output of the free tripping structure to the rotary motion output driving contact assembly are realized.
The above structure has the following problems: when the number of the switch units is large, the moment is transmitted to the far end, and then the large loss is generated, the driving of the far-end switch units is not reliable enough, so that the synchronization between the head layer and the tail layer is poor, and even the function of rapidly opening the switch units can not be realized.
Disclosure of Invention
The utility model aims to overcome the defects and the shortcomings of the prior art and provide a rotary switch with middle moment output.
The technical scheme adopted by the utility model is as follows: a rotary switch with middle moment output comprises a knob, a plurality of switch units and a free tripping mechanism,
the switch unit comprises a unit shell, and a moving contact assembly and a fixed contact assembly which are arranged in the unit shell, wherein the moving contact assembly can rotate relative to the unit shell, and the fixed contact assembly is fixed relative to the unit shell; the rotation center shaft of the movable contact assembly is arranged along a first direction,
the knob is used for driving the movable contact assembly to be switched on or switched off with the fixed contact assembly;
the free tripping mechanism comprises a tripping piece and a connecting rod structure, and the knob drives the moving contact and the fixed contact to be switched on or off through the transmission of the connecting rod structure; the trip fastener is matched with the connecting rod structure, and the moving contact and the fixed contact in the closing state can be separated by the trip fastener;
the switch units are divided into two groups to form a first switch unit group consisting of at least one switch unit and a second switch unit group consisting of at least one unit;
the free tripping mechanism is provided with a first rotary motion output end and a second rotary motion output end along the first direction, the connecting rod structure comprises an arc motion input end and an arc motion output end, a first transmission mechanism is arranged between the knob and the arc motion input end, the arc motion output end is connected with a second transmission mechanism, and the first rotary motion output end and the second rotary motion output end are arranged on the second transmission mechanism;
the rotary knob, the first switch unit group, the free tripping mechanism and the second switch unit group are sequentially stacked, the first rotary motion output end is in linkage fit with the moving contact assembly of the first switch unit group, and the second rotary motion output end is in linkage fit with the moving contact assembly of the second switch unit group.
The central shafts of the movable contact assemblies of the plurality of switch units are coaxially arranged;
the second transmission shaft can do arc-shaped movement taking the central shaft of the moving contact assembly as the center of a circle on a plane perpendicular to the first direction;
the first rotary motion output end and the second rotary motion output end are respectively arranged at the positions of the second driving wheel and the third driving wheel corresponding to the central shaft of the movable contact assembly.
The free tripping mechanism comprises a free tripping mechanism box, and the tripping fastener, the connecting rod structure, the second transmission shaft, the second transmission wheel and the third transmission wheel are all arranged in the free tripping mechanism box.
The first transmission mechanism comprises a first transmission shaft extending along a first direction, the length of the first transmission shaft is larger than the thickness of the first switch unit group, two ends of the first transmission shaft are respectively in transmission connection with the knob and the connecting rod structure and matched with the knob, and the first transmission shaft can be made to rotate or move in an arc through the knob.
The first transmission shaft is located outside the unit housing.
The first transmission shaft can be made to rotate through the knob, the first transmission mechanism comprises a first transmission wheel which is sleeved on the first transmission shaft and is in linkage fit with the first transmission shaft, and the arc motion input end is connected to the first transmission wheel and is separated from the central shaft of the first transmission shaft by a certain distance.
The knob central shaft is coaxially arranged with the moving contact assembly central shaft of the first switch unit group, the first transmission mechanism comprises a first transmission mechanism box, a first gear and a second gear which are arranged in the first transmission mechanism box, a first rotating shaft is connected in linkage with the center of the first gear, and the first rotating shaft penetrates through the first transmission mechanism box to be connected with the knob in linkage; one end part of the first transmission shaft extends into the first transmission mechanism box and is connected with the second gear in a linkage way; the first gear is meshed with the second gear.
The first switch unit group is formed by stacking at least two switch units along a first direction, and the second switch unit group is formed by stacking at least two switch units along the first direction.
The connecting rod structure comprises a five-connecting rod mechanism formed in a free tripping state and a four-connecting rod mechanism formed in a closing state;
the connecting rod structure comprises an energy storage spring, wherein the energy storage spring has an energy storage state for forming acting force on the four-bar mechanism in a closing state and an energy release state for enabling the connecting rod structure to form a five-bar mechanism in a free tripping state;
the trip fastener has a locking position of a four-bar mechanism formed when the connecting bar structure is locked to form a closing state and an unlocking position of a five-bar mechanism formed when the connecting bar structure is unlocked to form a free tripping state under the action of the energy storage spring.
The beneficial effects of the utility model are as follows: according to the utility model, the output of the rotation moment and the quick tripping and breaking of the rotation moment are realized through the free tripping mechanism arranged between the first switch unit group and the second switch unit group, and the transmission efficiency of the moment during the switching-on and switching-off is effectively improved.
Drawings
In order to more clearly illustrate the embodiments of the utility model or the technical solutions of the prior art, the drawings which are required in the description of the embodiments or the prior art will be briefly described, it being obvious that the drawings in the description below are only some embodiments of the utility model, and that it is within the scope of the utility model to one skilled in the art to obtain other drawings from these drawings without inventive faculty.
FIG. 1 is a schematic diagram of an embodiment of the present utility model;
FIG. 2 is a schematic diagram of a hidden switch unit according to an embodiment of the present utility model;
FIG. 3 is a schematic view of the upper end portion of the first transmission shaft according to an embodiment of the present utility model;
FIG. 4 is a schematic view of the lower end portion of the first transmission shaft according to an embodiment of the present utility model;
FIG. 5 is a schematic view of a link mechanism and a trip portion in an embodiment of the present utility model;
in the figure, 1, a knob; 200, a first switch unit group; 210, a second switch unit group; 3, a free tripping mechanism; 301, a jump fastener; 302, an energy storage spring; 310, a first rotational motion output; 320, a second rotational motion output; 401, a first drive shaft; 402, a first gear; 403, a second gear; 404, a first drive wheel; 405, a first shaft; 501, a second transmission shaft; 502, a second driving wheel; 503, third drive wheel.
Detailed Description
The present utility model will be described in further detail with reference to the accompanying drawings, for the purpose of making the objects, technical solutions and advantages of the present utility model more apparent.
It should be noted that, in the embodiments of the present utility model, all the expressions "first" and "second" are used to distinguish two entities with the same name but different entities or different parameters, and it is noted that the "first" and "second" are only used for convenience of expression, and should not be construed as limiting the embodiments of the present utility model, and the following embodiments are not described one by one.
The terms of direction and position in the present utility model, such as "up", "down", "front", "back", "left", "right", "inside", "outside", "top", "bottom", "side", etc., refer only to the direction or position of the drawing. Accordingly, directional and positional terms are used to illustrate and understand the utility model and are not intended to limit the scope of the utility model.
The rotary switch for outputting torque in the middle part, as shown in figure 1, comprises a knob 1, a plurality of switch units and a free tripping mechanism 3,
the switch unit comprises a unit shell, and a moving contact assembly and a fixed contact assembly which are arranged in the unit shell, wherein the moving contact assembly can rotate relative to the unit shell, and the fixed contact assembly is fixed relative to the unit shell; the rotation center shaft of the movable contact assembly is arranged along a first direction,
the knob 1 is used for driving the movable contact assembly to be switched on or switched off with the fixed contact assembly;
the free tripping mechanism 3 comprises a tripping member 301 and a connecting rod structure, and the knob 1 drives the moving contact and the fixed contact to be switched on or off through the transmission of the connecting rod structure; the trip piece 301 is matched with a connecting rod structure, and the moving contact and the fixed contact in a closing state can be separated by the trip piece 301;
the plurality of switch units are divided into two groups to form a first switch unit group 200 formed by at least one switch unit and a second switch unit group 210 formed by at least one unit 3;
the free tripping mechanism 3 is provided with a first rotary motion output end 310 and a second rotary motion output end 320 at two ends along a first direction, the connecting rod structure comprises an arc motion input end and an arc motion output end, a first transmission mechanism is arranged between the knob 1 and the arc motion input end, the arc motion output end is connected with a second transmission mechanism, and the first rotary motion output end 310 and the second rotary motion output end 320 are arranged on the second transmission mechanism;
the knob 1, the first switch unit group 200, the free tripping mechanism 3 and the second switch unit group 210 are sequentially stacked, the first rotary motion output end 310 is in linkage fit with the moving contact assembly of the first switch unit group 200, and the second rotary motion output end 320 is in linkage fit with the moving contact assembly of the second switch unit group 210.
The output of the rotation moment is realized through the free tripping mechanism arranged between the first switch unit group and the second switch unit group, namely, the rotation driving force is output from the middle parts of a plurality of switch units, and the rotation driving force is not output from the end parts, so that the transmission efficiency of the moment can be effectively improved.
Further, as shown in fig. 4, the arcuate motion output end is provided with a second transmission shaft 501 extending along the first direction, and a second transmission wheel 502 and a third transmission wheel 503 respectively hinged to two ends of the second transmission shaft 501, where the second transmission shaft 501 can perform arcuate motion in a plane perpendicular to the first direction;
the first rotary motion output end 310 and the second rotary motion output end 320 are respectively arranged on the second driving wheel 502 and the third driving wheel 503, a certain distance is reserved between the part, hinged to the second driving wheel 502, of the second driving shaft 501 and the first rotary motion output end 310, and the part, hinged to the second driving shaft 501 and the third driving wheel 503, of the second driving shaft 501 and the third driving wheel 503 is connected with the second rotary motion output end 320. The overall structure is simple and compact, and the first rotary motion output end 310 and the second rotary motion output end 320 form synchronous arc motions, so that the first switch unit group and the second switch unit group are synchronously operated.
Further, the free tripping mechanism 3 includes a free tripping mechanism box, and the tripping device 301, the connecting rod structure, the second transmission shaft 501, the second transmission wheel 502 and the third transmission wheel 503 are all disposed in the free tripping mechanism box. As shown in fig. 2, after the free tripping mechanism 3 is assembled, each switch unit and the free tripping mechanism 3 are directly stacked and installed, so that the free tripping mechanism is modularized and the production efficiency is higher.
Further, as shown in fig. 2, the first rotary motion output end 310 and the second rotary motion output end 320 are respectively a non-rotary body protruding shaft or a groove structure of which two sides of the free tripping mechanism box along the first direction are relatively protruded. The two sides of the switch units are generally provided with matched protruding shafts and grooves, when the switch units are assembled in a stacked manner, the protruding shafts and the grooves of the adjacent switch units are connected in a plugging manner to form a rotary torque transmission structure, preferably, the first rotary motion output end 310 and the second rotary motion output end 320 form a mechanism with the same shape as the protruding shafts and the grooves of the switch units, namely, the first rotary motion output end 310 and the second rotary motion output end 320 are matched with the protruding shafts and the grooves of the switch units, and are directly plugged into the rotary torque transmission structure. The first rotary motion output 310 and the second rotary motion output 320 may be both of the protruding shaft or the groove, such that the orientations of the first switching unit group and the second switching unit group (the upper and lower orientations of the protruding shaft and the groove) are opposite, or one of them may be the protruding shaft and the other of them is the groove, such that the orientations of the first switching unit group and the second switching unit group are the same.
Further, the first transmission mechanism includes a first transmission shaft 401 extending along a first direction, a length of the first transmission shaft 401 is greater than a thickness of the first switch unit group 200, two ends of the first transmission shaft 401 are respectively in transmission connection with the knob 1 and the connecting rod structure, and the first transmission shaft 401 can perform rotational movement or arc movement through the knob 1. The first transmission shaft 401 is used for connecting the knob 1 and the free tripping structure 3 which are respectively positioned at two sides of the first switch unit group 200, and realizing power transmission from the knob 1 to the free tripping structure 3.
Further, the first transmission shaft 401 is located outside the unit housing. When the product is unable to normally open and close, the knob 1 can be rotated, the movement condition of the first transmission shaft 401 outside the unit shell is observed, and the fault is located at one end of the first transmission shaft 401, such as the first transmission shaft 401 normally performs rotary movement or arc movement, then the fault is located at the lower end of the first transmission shaft 401, the free tripping structure part is required to be disassembled for maintenance, such as the first transmission shaft 401 normally performs rotary movement or arc movement, then the fault is located at the upper end of the first transmission shaft 401, and the shell below the knob is disassembled for maintenance.
The first transmission shaft 401 can be rotated through the knob 1, the first transmission mechanism comprises a first transmission wheel 404 sleeved on the first transmission shaft 401 and in linkage fit with the first transmission shaft 401, and the arc motion input end is connected to the first transmission wheel 404 and is separated from the central shaft of the first transmission shaft 401 by a certain distance. By the arrangement, the unit casing does not need to provide a yielding space for the first transmission shaft 401 to do arc motion outside, and the unit casing is assembled in the device, so that the space utilization is facilitated.
The central shaft of the knob 1 is coaxially arranged with the central shaft of the moving contact assembly of the first switch unit group 200, the first transmission mechanism comprises a first transmission mechanism box, a first gear 402 and a second gear 403 which are arranged in the first transmission mechanism box, as shown in fig. 3, a first rotating shaft 405 is connected in linkage with the center of the first gear 402, and the first rotating shaft 405 passes through the first transmission mechanism box to be connected with the knob 1 in linkage; one end part of the first transmission shaft 401 extends into the first transmission mechanism box and is connected with the second gear 403 in a linkage way; the first gear 402 is meshed with the second gear 403. The rotation angle of the knob of the rotary switch is about 90 degrees, the arc angle of the arc motion input end of the connecting rod mechanism in the molded case circuit breaker is usually smaller, and the change of the rotation angle of the knob 1 and the rotation angle of the first transmission shaft 401 can be realized through the transmission ratio of the first gear 402 and the second gear 403, namely, the change of the rotation angle of the knob 1 and the change of the arc angle of the arc motion input end are further realized. The first transmission mechanism box is arranged to be more beneficial to the modularized assembly of products, and the production efficiency is improved.
The first switch unit group 200 is stacked in a first direction by at least two switch units, and the second switch unit group 210 is stacked in the first direction by at least two switch units.
The connecting rod structure comprises a five-connecting rod mechanism formed in a free tripping state and a four-connecting rod mechanism formed in a closing state;
the connecting rod structure comprises an energy storage spring 302, wherein the energy storage spring 302 has an energy storage state for forming acting force on the four-bar mechanism in a closing state and an energy release state for enabling the connecting rod structure to form a five-bar mechanism in a free tripping state;
the trip member 301 has a locking position of a four-bar mechanism formed when the link structure is locked to form a closed state and an unlocking position of a five-bar mechanism formed when the link structure is unlocked to form a free trip state under the action of the energy storage spring 302. In this patent, the link structure specifically be the coupling mechanism who realizes the free tripping of application many years in the moulded case circuit breaker (low voltage circuit breaker), at present, realize the tripping through four-bar linkage and five-bar linkage basically in the moulded case circuit breaker, this kind of mechanism is four-bar linkage when not tripping, is five-bar linkage after the tripping, the structure is very mature, does not explain specifically.
The foregoing disclosure is illustrative of the present utility model and is not to be construed as limiting the scope of the utility model, which is defined by the appended claims.
Claims (9)
1. A rotary switch with middle moment output, which comprises a knob (1), a plurality of switch units and a free tripping mechanism (3),
the switch unit comprises a unit shell, and a moving contact assembly and a fixed contact assembly which are arranged in the unit shell, wherein the moving contact assembly can rotate relative to the unit shell, and the fixed contact assembly is fixed relative to the unit shell; the rotating center shaft of the movable contact assembly is arranged along a first direction;
the knob (1) is used for driving the movable contact assembly to be switched on or switched off with the fixed contact assembly;
the free tripping mechanism (3) comprises a tripping piece (301) and a connecting rod structure, and the knob (1) drives the moving contact and the fixed contact to be switched on or off through the transmission of the connecting rod structure; the jump fastener (301) is matched with the connecting rod structure, and the movable contact and the fixed contact in the closing state can be separated through the jump fastener (301);
the method is characterized in that: the switch units are divided into two groups to form a first switch unit group (200) formed by at least one switch unit and a second switch unit group (210) formed by at least one switch unit respectively;
the free tripping mechanism (3) is provided with a first rotary motion output end (310) and a second rotary motion output end (320) along the two ends of the first direction, the connecting rod structure comprises an arc motion input end and an arc motion output end, a first transmission mechanism is arranged between the knob (1) and the arc motion input end, the arc motion output end is connected with a second transmission mechanism, and the first rotary motion output end (310) and the second rotary motion output end (320) are arranged on the second transmission mechanism;
the rotary switch comprises a knob (1), a first switch unit group (200), a free tripping mechanism (3) and a second switch unit group (210), wherein the knob, the first switch unit group (200), the free tripping mechanism (3) and the second switch unit group (210) are sequentially stacked, a first rotary motion output end (310) is in linkage fit with a moving contact assembly of the first switch unit group (200), and a second rotary motion output end (320) is in linkage fit with a moving contact assembly of the second switch unit group (210).
2. The mid-torque output rotary switch of claim 1, wherein: the central shafts of the movable contact assemblies of the plurality of switch units are coaxially arranged;
the arc-shaped motion output end is provided with a second transmission shaft (501) extending along a first direction, a second transmission wheel (502) and a third transmission wheel (503) which are respectively connected with two ends of the second transmission shaft (501) in a hinged manner, and the second transmission shaft (501) can do arc-shaped motion taking a central shaft of the movable contact assembly as a center of a circle on a plane perpendicular to the first direction;
the first rotary motion output end (310) and the second rotary motion output end (320) are respectively arranged at positions of the second driving wheel (502) and the third driving wheel (503) corresponding to the central shaft of the movable contact assembly.
3. The mid-torque output rotary switch of claim 2, wherein: the free tripping mechanism (3) comprises a free tripping mechanism box, and the tripping device (301), the connecting rod structure, the second transmission shaft (501), the second transmission wheel (502) and the third transmission wheel (503) are all arranged in the free tripping mechanism box.
4. The mid-torque output rotary switch of claim 1, wherein: the first transmission mechanism comprises a first transmission shaft (401) extending along a first direction, the length of the first transmission shaft (401) is larger than the thickness of the first switch unit group (200), two ends of the first transmission shaft (401) are respectively in transmission connection with the knob (1) and the connecting rod structure, and the first transmission shaft (401) can be made to rotate or move in an arc through the knob (1).
5. The mid-torque output rotary switch of claim 4, wherein: the first transmission shaft (401) is located outside the unit housing.
6. The mid-torque output rotary switch of claim 5, wherein: the rotary knob (1) can enable the first transmission shaft (401) to rotate, the first transmission mechanism comprises a first transmission wheel (404) which is sleeved on the first transmission shaft (401) and is in linkage fit with the first transmission shaft (401), and the arc motion input end is connected to the first transmission wheel (404) and is separated from the central shaft of the first transmission shaft (401) by a certain distance.
7. The mid-torque output rotary switch of claim 6, wherein: the central shaft of the knob (1) is coaxially arranged with the central shaft of the moving contact assembly of the first switch unit group (200), the first transmission mechanism comprises a first transmission mechanism box, a first gear (402) and a second gear (403) which are arranged in the first transmission mechanism box, a first rotating shaft (405) is connected at the center of the first gear (402) in a linkage way, and the first rotating shaft (405) penetrates through the first transmission mechanism box to be connected with the knob (1) in a linkage way; one end part of the first transmission shaft (401) extends into the first transmission mechanism box and is connected with the second gear (403) in a linkage way; the first gear (402) meshes with a second gear (403).
8. A rotary switch for mid-section torque output as claimed in any one of claims 1 to 7 wherein: the first switch unit group (200) is formed by stacking at least two switch units along a first direction, and the second switch unit group (210) is formed by stacking at least two switch units along the first direction.
9. A rotary switch for mid-section torque output as claimed in any one of claims 1 to 7 wherein: the connecting rod structure comprises a five-connecting rod mechanism formed in a free tripping state and a four-connecting rod mechanism formed in a closing state;
the connecting rod structure comprises an energy storage spring (302), wherein the energy storage spring (302) has an energy storage state for forming acting force on the four-bar mechanism in a closing state and an energy release state for enabling the connecting rod structure to form a five-bar mechanism in a free tripping state;
the trip piece (301) is provided with a locking position of a four-bar mechanism formed when the connecting bar structure is locked to form a closing state and an unlocking position of a five-bar mechanism formed when the connecting bar structure is unlocked to form a free tripping state under the action of the energy storage spring (302).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320585958.6U CN219759429U (en) | 2023-03-17 | 2023-03-17 | Rotary switch for middle moment output |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320585958.6U CN219759429U (en) | 2023-03-17 | 2023-03-17 | Rotary switch for middle moment output |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219759429U true CN219759429U (en) | 2023-09-26 |
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ID=88089469
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320585958.6U Active CN219759429U (en) | 2023-03-17 | 2023-03-17 | Rotary switch for middle moment output |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219759429U (en) |
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2023
- 2023-03-17 CN CN202320585958.6U patent/CN219759429U/en active Active
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