Switching device with indication function

Abstract

The utility model discloses a switching device with an indication function, which comprises a shell part and at least one switch arranged in the shell part, an indication piece is movably arranged in the shell part corresponding to the at least one switch, and the indication piece is provided with different first indication marks corresponding to the on state and the off state of the switch respectively. The shell part is provided with a first observation part corresponding to the indicating piece, the indicating piece is linked with the corresponding switch, and a first indicating mark corresponding to the indicating piece enters the range of the first observation part along with switching of the on-off state of the switch. According to the utility model, a worker can intuitively see the current on-off state of the switch on site, so that favorable guarantee is provided for the worker to carry out on-site maintenance and the like.

Description

Technical Field

[0001] This utility model relates to the field of switch technology, and in particular to a switch device with an indicator function. Background Technology

[0002] Switchgear is an electrical device used to connect or disconnect the current in one or more circuits. Specific components can take the form of relays, disconnecting switches, contactors, circuit breakers, etc. Existing switchgear includes both manual and electrically controlled types. For manual switches, operators can visually understand the switch's current open / closed state by observing the position of the operating handle. However, electrically controlled switches do not have this function. Although most existing electrically controlled switches further incorporate auxiliary switches or contacts to indicate the switch's open / closed state, these auxiliary switches or contacts typically output electrical signals, serving as a detection signal for the switch's control system. Therefore, operators still cannot visually determine the current open / closed state of the electrically controlled switch at the switch location, increasing the risk of operator error. Utility Model Content

[0003] This utility model addresses the technical problems existing in the prior art by providing a switch device with an indicator function. Through structural improvements, it enables workers on-site to intuitively see the current open / closed status of the switch.

[0004] The technical solution adopted by this utility model to solve its technical problem is: a switch device with an indicator function, including a housing component and at least one switch disposed in the housing component. An indicator is movably disposed in the housing component corresponding to at least one switch. The indicator is provided with different first indicator marks corresponding to the closed state and open state of the switch. The housing component is provided with a first observation part corresponding to the indicator. The indicator is linked with the corresponding switch. As the open and closed state of the switch changes, the corresponding first indicator mark of the indicator enters the range of the first observation part.

[0005] Furthermore, the indicator includes a rotating shaft, an indicator block, and a driving unit. The rotating shaft is rotatably disposed within the housing component about its axis. The indicator block is disposed at one end of the rotating shaft and close to the first observation position, and the first indicator mark is provided on the indicator block. The other end of the rotating shaft is provided with a driving unit, which is driven by the switch.

[0006] Furthermore, the driving part includes a first driving foot and a second driving foot, which extend along the outer side of the rotating shaft and form an included angle with each other. The tail end of the first driving foot bends away from the second driving foot. Furthermore, the switch includes a moving contact, a stationary contact, and a rotatably disposed actuator. The moving contact contacts or separates from the stationary contact under the action of the actuator. When the actuator of the switch corresponding to the indicator rotates in the direction of closing or opening the switch, it drives the indicator to rotate. A reset member is provided between the indicator and the housing component. This reset member drives the indicator to reset when the actuator releases the indicator.

[0007] Furthermore, the actuator includes a coaxially fixed contact support and a cam. There are two stationary contacts, and the moving contact is located on the contact support. As the contact support rotates, the two ends of the moving contact contact contact or separate from the two stationary contacts respectively. The cam is used to drive the driving part of the indicator to rotate.

[0008] Furthermore, the reset component is a torsion spring, which is fitted onto the rotating shaft, and the two ends of the torsion spring are respectively limited to the drive part and the housing component.

[0009] Furthermore, there are multiple switches, including a first switch and a second switch, which are arranged side by side; there are two indicators, one of which has a first driving pin driven by the first switch and the other has a second driving pin driven by the second switch.

[0010] Furthermore, it also includes a drive mechanism disposed within the housing component, the drive mechanism including a motor and a drive shaft for linkage of the opening and closing of the switch, the drive shaft being driven by the motor to drive the actuator to rotate.

[0011] Furthermore, the switches are configured as multiple, with two switches being a first switch and a second switch, respectively. The drive mechanism also includes a first drive wheel for linking the opening and closing of the first switch and a second drive wheel for linking the opening and closing of the second switch. The first drive wheel is coaxially fixed together with the drive shaft, and the second drive wheel is sleeved outside the drive shaft, with a free stroke between it and the first drive wheel and / or the drive shaft, so that the drive shaft controls the rotation of the first drive wheel and the second drive wheel in a time sequence.

[0012] Furthermore, it also includes a switch assembly, which includes a first auxiliary switch and a second auxiliary switch driven by the actuator of the first switch, and a third auxiliary switch and a fourth auxiliary switch driven by the actuator of the second switch. The first auxiliary switch and the third auxiliary switch are used to control the timing of the motor's operation and stop, the second auxiliary switch is used to indicate the open and closed state of the first switch, and the fourth switch is used to indicate the open and closed state of the second switch.

[0013] Furthermore, one end of the drive shaft can be manually driven to rotate, and the drive mechanism also includes a control component for controlling whether the circuit containing the motor is turned on or off; the control component includes a control switch connected in series with the motor, which is driven to close or open by an operable control element; the housing component is provided with a first clearance hole corresponding to one end of the drive shaft, and the housing component is provided with a second clearance hole suitable for the control element to be operated.

[0014] Furthermore, the control component is slidably and / or rotatably disposed within the housing component, allowing the control component to switch between different positions. The control component has a first position and a second position. In the first position, the control component is obstructed between one end of the drive shaft and the first clearance hole, and the control switch is closed. In the second position, there is no obstruction between one end of the drive shaft and the first clearance hole, and the control switch is open. The control component also has a third position, in which the control component is obstructed between one end of the drive shaft and the first clearance hole, and the control switch is open. The housing component is also provided with a locking component that can be pushed and pulled from the second clearance hole. This locking component is pulled out when the control component is in the third position, restricting the control component from switching to the first or second position. The locking component has a hanging hole for connecting a padlock.

[0015] Furthermore, the motor is connected to the drive shaft via a gear transmission assembly, the gear transmission assembly including a main gear disposed on the drive shaft; the control component is provided with a locking block, which locks the main gear when the control component is in the third position.

[0016] Furthermore, the control component is provided with different second indicator marks for each of its positions, and the housing component is provided with a second observation part. When the control component switches to different positions, its corresponding second indicator mark enters the second observation part.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] 1. Because the present invention has an indicator movablely arranged inside the housing component, the indicator has different first indicator marks corresponding to the closed and open states of the switch. The housing component has a first observation part corresponding to the indicator. The indicator is linked with the actuator, so that the indicator moves its corresponding first indicator mark into the range of the first observation part as the switch switches between open and closed states. Therefore, the present invention allows the staff to intuitively see the current open and closed state of the switch on site, thus providing a favorable guarantee for the staff to carry out on-site maintenance, etc.

[0019] 2. The indicator includes the rotating shaft, the indicator block and the driving part, which makes the structure of the indicator relatively simple, and the indicator state is switched by rotation, making the movement mode of the indicator relatively simple and easy to implement.

[0020] 3. The driving unit includes a first driving foot and a second driving foot. When two indicators are provided and cooperate with two switches arranged side by side, the two indicators can be manufactured using the same mold, thereby reducing production costs. In particular, the tail end of the first driving foot is bent away from the second driving foot, which allows the first and second driving feet to effectively cooperate with their respective switches without interference when the included angle is relatively small, thus reducing the space occupied.

[0021] 4. The drive mechanism of this utility model includes a motor, which can utilize the large stroke characteristic of the motor to achieve the large operating stroke requirement of the switch, thereby ensuring that the electrical distance of the switch in the open state meets the specified safety isolation distance. In particular, this utility model ingeniously sets a first drive wheel and a second drive wheel on the drive shaft, and sets a free stroke between the second drive wheel and the drive shaft and / or the first drive wheel. This free stroke is used to realize the sequential closing or sequential opening of the first switch and the second switch, which simplifies the structure of the drive mechanism while ensuring the stability and reliability of the drive mechanism's operation.

[0022] 5. The drive shaft can be manually driven, making this invention convenient for on-site inspection and maintenance. The control components allow for manual operation, enabling the motor to be locked to prevent accidental energization and ensuring safer and more reliable operation. Specifically, the control components have multiple positions and are further equipped with locking mechanisms, significantly improving the safety and reliability of this invention.

[0023] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments; however, the present invention is not limited to the embodiments provided. Attached Figure Description

[0024] Figure 1 This is an exploded view of the switching device of this utility model;

[0025] Figure 2 yes Figure 1 A magnified view of a portion of the image;

[0026] Figure 3 This is a three-dimensional structural diagram of the switching device of this utility model. Figure 1 (Reflecting on a local aspect)

[0027] Figure 4 This is a three-dimensional structural diagram of the switching device of this utility model. Figure 2 (Reflecting on a local aspect);

[0028] Figure 5 This is a three-dimensional structural diagram of the switching device of this utility model. Figure 3 (Reflecting on a local aspect);

[0029] Figure 6 This is a three-dimensional structural diagram of the first switch and the first energy storage component of this utility model in their combined state. Figure 1 ;

[0030] Figure 7 This is a three-dimensional structural diagram of the first switch and the first energy storage component of this utility model in their combined state. Figure 2 ;

[0031] Figure 8 This is a three-dimensional structural diagram of the switching device of this utility model. Figure 4 (Reflecting on a local aspect);

[0032] Figure 9 This is a three-dimensional structural diagram of the switching device of this utility model. Figure 5 (Reflecting on a local aspect);

[0033] Figure 10 This is a schematic diagram of the structure of the control component of this utility model that jams the main gear;

[0034] Figure 11 This is a three-dimensional structural schematic diagram of the first indicator of this utility model;

[0035] Figure 12 This is a three-dimensional structural diagram of the switching device of this utility model. Figure 6 ;

[0036] Figure 13 This is a three-dimensional structural diagram of the switching device of this utility model. Figure 7 ;

[0037] Figure 14 This is a three-dimensional structural diagram of the switching device of this utility model. Figure 8 (Reflecting on a local aspect);

[0038] Figure 15 This is a three-dimensional structural schematic diagram of the arc-blocking component of this utility model;

[0039] Figure 16 This is a three-dimensional structural diagram of the switching device of this utility model. Figure 9 (Reflecting on a local aspect);

[0040] Figure 17 This is a schematic diagram of the first switch and the second switch of this utility model in the open state;

[0041] Figure 18 This is a schematic diagram of the drive mechanism of this utility model in the state of the first switch and the second switch being open;

[0042] Figure 19 This is a schematic diagram of the drive mechanism of this utility model during the closing process. Figure 1 ;

[0043] Figure 20 This is a schematic diagram of the drive mechanism of this utility model during the closing process. Figure 2 ;

[0044] Figure 21 This is a schematic diagram of the drive mechanism of this utility model during the closing process. Figure 3 ;

[0045] Figure 22 This is a schematic diagram of the drive mechanism of this utility model during the closing process. Figure 4 ;

[0046] Figure 23 This is a schematic diagram of the drive mechanism of this utility model in the state when the circuit is closed;

[0047] Figure 24 This is a schematic diagram of the first switch and the second switch of this utility model in the closed state;

[0048] Figure 25 This is a schematic diagram of the drive mechanism of this utility model during the opening process. Figure 1 ;

[0049] Figure 26 This is a schematic diagram of the drive mechanism of this utility model during the opening process. Figure 2 ;

[0050] Figure 27 This is a schematic diagram of the drive mechanism of this utility model during the opening process. Figure 3 ;

[0051] Figure 28 This is a schematic diagram of the drive mechanism of this utility model during the opening process. Figure 4 ;

[0052] In the diagram, 1. First switch; 11. First moving contact portion; 111. First contact support; 112. First moving contact; 113. First gear; 13. First cam; 131. Second arc-shaped hole; 12. First stationary contact; 2. Second switch; 21. Second moving contact portion; 211. First contact support; 212. Second moving contact; 23. Second cam; 24. Precharge pin; 3. Drive mechanism; 31. Motor; 32. Drive shaft; 321. Limiting protrusion; 322. First operating hole; 33. First driving wheel; 34. Second driving wheel; 341. Stroke groove; 35. First driven wheel; 351. First arc-shaped hole; 36. Second driven wheel; 37. First energy storage component; 371. Energy storage drive wheel; 372. Energy storage spring; 373. Movable rod; 374. Push rod 375. Support; 38. Second energy storage component; 39. Gear transmission component; 391. Main gear; 4. Arc extinguishing body; 5. Arc isolation component; 51. Second gear; 7. Switch component; 71. First auxiliary switch; 72. Second auxiliary switch; 73. Third auxiliary switch; 74. Fourth auxiliary switch; 8. Indicator; 81. Rotating shaft; 82. Indicator block; 83. First drive foot; 84. Second drive foot; 85. Torsion spring; 9. Control component; 91. Control switch; 92. Control component; 921. Second operating hole; 93. Locking component; 931. Hanging hole; 94. Locking block; 10. Housing component; 101. First clearance hole; 102. Second clearance hole; 103 / 104. Observation hole; 105. Control port; 106. Exhaust hole; 20. Operating handle; 30. Main control board. Detailed Implementation

[0053] In this invention, the terms "first," "second," etc., are used only to distinguish similar objects, not to describe a specific order or sequence, nor should they be construed as indicating or implying relative importance. In this invention, unless otherwise stated, "multiple" refers to two or more. "And / or" describes the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, or B existing alone. The character " / " generally indicates that the preceding and following related objects have an "or" relationship.

[0054] Please see Figures 1-28As shown, this utility model discloses a switch device with an indicator function, comprising a housing component 10 and at least one switch disposed within the housing component 10. An indicator 8 is movably disposed within the housing component 10 corresponding to the at least one switch. The indicator 8 has different first indicator marks corresponding to the closed and open states of the switch. The housing component 10 has a first observation area corresponding to the indicator 8. The indicator 8 is linked to the corresponding switch, causing the indicator 8 to move its corresponding first indicator mark into the range of the first observation area as the switch switches between open and closed states. The first observation area is specifically a first observation hole 103, such as... Figure 12 , Figure 13 As shown, but not limited to, in other embodiments, the first observation hole 103 may be replaced by a transparent observation window. The switch specifically includes a moving contact, a stationary contact, and an actuator. The moving contact is in contact with or separates from the stationary contact under the action of the actuator. The indicator 8 is specifically driven by the actuator of the corresponding switch.

[0055] In this embodiment, the actuator and the indicator 8 are rotatably configured. When the actuator rotates in the direction of closing or opening the switch, it drives the indicator 8 to rotate. A reset member is provided between the indicator and the housing component 10. This reset member drives the indicator 8 to reset when the actuator releases the actuator 8. The actuator specifically includes a contact support and a cam fixed coaxially. There are two stationary contacts, and the moving contact is located on the contact support. As the contact support rotates, the two ends of the moving contact contact contact or separate from the two stationary contacts respectively. The cam is used to push the indicator 8 to rotate.

[0056] The indicator 8 includes a rotating shaft 81 and an indicator block 82. The rotating shaft 81 is rotatably disposed within the housing component 10 about its axis, and a reset member is provided between the rotating shaft 81 and the housing component 10. The indicator block 82 is disposed at one end of the rotating shaft 81, near the first observation position, and is approximately fan-shaped, with a first indicator mark provided on it. The other end of the rotating shaft 81 is provided with a drive unit, which is driven by a corresponding switch, specifically by a cam of the actuator of the corresponding switch. The reset member is a torsion spring 85, which is fitted onto the rotating shaft 81, with its two ends respectively confined to the drive unit and the switch component 10.

[0057] In this embodiment, the present invention also includes a drive mechanism 3 disposed within the housing component 10. The drive mechanism 3 includes a motor 31 and a drive shaft 32. The drive shaft 32 is driven by the motor 31 and drives the actuator to rotate. The housing component 10 is specifically composed of multiple parts and serves as a support carrier for the switch and drive mechanism 3, and as the external appearance component of the switch device. The motor 31 is specifically connected to the drive shaft 32 via a gear transmission assembly 39, which includes a main gear 391 disposed on the drive shaft 32.

[0058] Multiple switches are provided, including two switches: a first switch 1 and a second switch 2. The first and second switches 1 and 2 are arranged side-by-side and connected in series. In this embodiment, two first switches 1 are provided, and they are linked together to open and close synchronously. The first switches 1 and 2 are controlled by a drive mechanism 3 to open and close synchronously or sequentially. Two indicators 8 are provided, with a drive unit including a first drive foot 83 and a second drive foot 84. The first drive foot 83 and the second drive foot 84 extend along the outer side of the rotating shaft 81, forming an angle of less than 90° between them, making them approximately V-shaped. Specifically, the tail end of the first drive foot 83 bends away from the second drive foot 84. The first drive foot 83 of one indicator 8 is driven by the actuator of the first switch 1, and the second drive foot 84 of the other indicator 8 is driven by the actuator of the second switch 2. This allows both indicators 8 to be manufactured using the same mold, which helps reduce production costs. Furthermore, since the tail end of the first driving foot 83 bends away from the second driving foot 84, the first driving foot 83 and the second driving foot 84 can effectively cooperate with their respective switches when the included angle is relatively small, and there will be no interference, which helps to reduce the space occupied.

[0059] As a preferred embodiment, one end of the drive shaft 32 can be manually driven to rotate, and the drive mechanism 3 also includes a control component 9 for controlling whether the circuit containing the motor 31 is connected or not. The control component 9 specifically includes a control switch 91 connected in series with the motor 31. This control switch 91 is specifically a self-resetting microswitch, and is driven to close or open by an operable control element 92. Figure 12 , Figure 13 As shown, the housing component 10 has a first clearance hole 101 at one end corresponding to the drive shaft 32, and the housing component 10 also has a second clearance hole 102 suitable for the control element 92 to be operated. One end of the drive shaft 32 is located inside the housing component 10 and has a non-circular first operating hole 322. This invention also includes an operating handle 20 that can be housed on the housing component 10. The operating handle 20 is generally L-shaped, with one end passing through the first clearance hole 101 and inserted into the first operating hole 322 to drive the drive shaft 32 to rotate. In other embodiments, one end of the drive shaft 32 extends out of the first clearance hole 101 of the housing component 10.

[0060] In this embodiment, the control member 92 has a long plate-shaped main body structure, which is slidably disposed within the housing component 10, allowing the control member 92 to switch between different positions. The control member 92 has a first position, a second position, and a third position. In the first position, the control member 92 is positioned between one end of the drive shaft 32 and the first clearance hole 101, and the control switch 91 is closed. In the second position, there is no obstruction between one end of the drive shaft 32 and the first clearance hole 101. At this time, the through hole 921 provided on the control member 92 is opposite to the drive shaft 32 and the first clearance hole 101, and the control switch 91 is open. In the third position, the control member 92 is positioned between one end of the drive shaft 32 and the first clearance hole 10, and the control switch 91 is open. The housing component 10 also includes a locking member 93 that can be pushed and pulled through the second clearance hole 102. This locking member 93 is pulled out when the control member 92 is in the third position, preventing the control member 92 from switching to the first or second position. The locking member 93 has a hook hole 931 for connecting a padlock; when the padlock is in the limiting position, the locking member 93 cannot be pushed into the housing component 10. The control member 92 has a locking block 94 that engages the main gear 391 when the control member 92 is in the third position.

[0061] The control component 92 is provided with different second indicator marks at each of its various positions, and the housing component 10 is provided with a second observation part. When the control component switches to different positions, its corresponding second indicator mark enters the second observation part. The second observation part is specifically a second observation hole 104, such as... Figure 12 , Figure 13 As shown, but not limited to, in other embodiments, the second observation hole 104 may be replaced by a transparent observation window. The first indicator and the second indicator may be implemented using different colors or fonts, etc.

[0062] For ease of distinction, the components of the first switch 1 are referred to as the first moving contact 112, the first stationary contact 12, the first contact support 111, and the first cam 13, which is used to push the first drive foot 83. The components of the second switch 2 are referred to as the second moving contact 212, the second stationary contact 22, the second contact support 111, and the second cam 23, which is used to push the second drive foot 84. The first moving contact 112 and the actuator of the first switch 1 are collectively referred to as the first moving contact part 11, and the second moving contact 212 and the actuator of the second switch 2 are collectively referred to as the second moving contact part 21. The two second stationary contacts 22 of the second switch 2 are each provided with a pre-charge pin 24. One second stationary contact 22 of the second switch 2 is integrally formed with or electrically connected to one first stationary contact 12 of the first switch 1, thereby realizing the series connection of the first switch 1 and the second switch 2. The drive mechanism 3 also includes a first drive wheel 33 for linking the opening and closing of the first switch 1 and a second drive wheel 34 for linking the opening and closing of the second switch 2. The first drive wheel 33 is coaxially fixed with the drive shaft 32, and the second drive wheel 34 is sleeved on the drive shaft 32, with a free stroke between it and the first drive wheel 33 and / or the drive shaft 32, so that the second drive wheel 34 rotates later than the first drive wheel 33, thereby realizing the sequential closing or opening of the first switch 1 and the second switch 2. Specifically, the inner hole of the second drive wheel 34 is provided with a stroke groove 341, and the first drive wheel 33 and / or the drive shaft 32 are provided with a limiting protrusion 321 corresponding to the stroke groove 341. The limiting protrusion 321 rotatably engages within the stroke groove 341, and the free stroke is realized by the movement of the limiting protrusion 321 between the two ends of the circumferential direction of the stroke groove 341. In this embodiment, there are two stroke grooves 341, which are arranged opposite to each other, but it is not limited to this.

[0063] The drive mechanism 3 also includes a first driven wheel 35 and a second driven wheel 36. The first driving wheel 33 is driven by the first driven wheel 35, so that the first driven wheel 35 rotates and drives the first switch 1 to close or open. The second driving wheel 34 is driven by the second driven wheel 36, so that the second driven wheel 36 rotates and drives the second switch 2 to close or open. Specifically, in this embodiment, the first driving wheel 33, the second driving wheel 34, the first driven wheel 35, and the second driven wheel 36 are gears. The first driving wheel 33 meshes with the first driven wheel 35, and the second driving wheel 34 meshes with the second driven wheel 36.

[0064] The drive mechanism 3 also includes a first energy storage component 37 and a second energy storage component 38. The first driven wheel 35 stores energy by rotating in conjunction with the first energy storage component 37, and the first energy storage component 37 drives the first switch 1 to close or open by releasing the stored energy. The second driven wheel 36 stores energy by rotating in conjunction with the second energy storage component 38, and the second energy storage component 38 drives the second switch 2 to close or open by releasing the stored energy. This achieves instantaneous connection and disconnection of the first switch 1 and the second switch 2, avoiding the adverse effects of long contact arc burning time caused by the slow operating speed of the motor 31.

[0065] The first energy storage component 37 is disposed between the first driven wheel 35 and the first cam 13 of the first moving contact portion 11, and has a free stroke between the first driven wheel 35 and the first cam 13 respectively; the second energy storage component 38 is disposed between the second driven wheel 36 and the second cam 13 of the second moving contact portion 21, and has a free stroke between the second driven wheel 36 and the second moving contact portion 21 respectively.

[0066] like Figure 6 , Figure 7 As shown, the first energy storage component 37 specifically includes an energy storage drive wheel 371 and at least one movable component. The movable component includes a movable rod 373, a push rod 374, and an energy storage spring 372. The energy storage drive wheel 371 is located between the first driven wheel 35 and the first cam, and the energy storage drive wheel 371, the first driven wheel 35, and the first cam 13 are all on the same axis. The first driven wheel 35 has a first arc-shaped hole 351 concentrically arranged with the movable component corresponding to the first driven wheel 35. The first cam 13 has a first arc-shaped hole 351 concentrically arranged with the movable component corresponding to the first cam 13. A second arc-shaped hole 131 is provided, and a push rod 374 is provided on the energy storage drive wheel 371. One end of the push rod 374 is adapted to slide into the first arc-shaped hole 351 of the first driven wheel 35, and the other end of the push rod 374 is adapted to slide into the second arc-shaped hole 131 of the first cam 13. A movable rod 373 is rotatably and slidably provided on a support 375 located outside the energy storage drive wheel 371, and one end of the movable rod 373 is movably connected to the push rod 374. An energy storage spring 372 is fitted onto the movable rod 373 and cooperates between the push rod 374 and the support 375. In this embodiment, there are two movable parts, which are located on opposite sides of the energy storage drive wheel 371. Correspondingly, there are two first arc-shaped holes 351 and two second arc-shaped holes 131. Therefore, when the first driven wheel 35 rotates, it drives the energy storage drive wheel 371 to rotate, causing the energy storage spring 372 to store energy. When the energy storage spring 372 releases the stored energy, it drives the first cam 13 to rotate, thereby closing or opening the first switch 1, that is, causing the first moving contact portion 11 to contact or separate from the stationary contact portion. The structure of the second energy storage component 38 is the same as or basically the same as the structure of the first energy storage component 37, and will not be described again here.

[0067] like Figure 8 As shown, this utility model also includes a switch assembly 7, which includes a first auxiliary switch 71 and a second auxiliary switch 72 linked to the first moving contact portion 11 of the first switch 1, and a third auxiliary switch 73 and a fourth auxiliary switch 74 linked to the second moving contact portion 21 of the second switch 2. The first auxiliary switch 71 and the third auxiliary switch 73 are used to control the start and stop timing of the motor 31, the second auxiliary switch 72 is used to indicate the open and closed state of the first switch 1, and the fourth auxiliary switch 74 is used to indicate the open and closed state of the second switch 2. Specifically, in this embodiment, the first auxiliary switch 71, the second auxiliary switch 72, the third auxiliary switch 73, and the fourth auxiliary switch 74 are all self-resetting microswitches. The first auxiliary switch 71 and the second auxiliary switch 72 are driven by the first cam 13, and the third auxiliary switch 73 and the fourth auxiliary switch 74 are driven by the second cam 23.

[0068] The first switch 1 of this utility model is provided with an arc-extinguishing assembly, which includes an arc-extinguishing body 4 and an arc-isolating member 5 linked to the first moving contact portion 11. As the first moving contact 112 contacts or separates from the first stationary contact 12, the arc-isolating member 5 is in a clearance position or a separation position. In the separation position, the arc-isolating member 5 physically separates the first moving contact 112 from the first stationary contact 12. In the clearance position, the arc-isolating member 5 avoids the first moving contact 112. The arc-extinguishing body 4 is located on the side of the arc-isolating member 5 away from the clearance position in the separation position, and when the arc-isolating member 5 moves to the separation position, it pushes the arc towards the arc-extinguishing body 4. Two arc-extinguishing assemblies are provided, and the two arc-extinguishing assemblies correspond one-to-one with the two first stationary contacts 12. The first moving contact portion 11 is connected to the arc-isolating member 5 via a toothed transmission structure. Specifically, the toothed transmission structure includes a first gear 113 located on the first contact support 111 and a second gear 51 located on the arc-isolating member 5, with the first gear 113 meshing with the second gear 51. The arc-extinguishing body 4 includes a plurality of arc-extinguishing grid plates spaced apart along the rotation direction of the arc-isolating member 5, and the side of the arc-extinguishing body 4 facing the arc-isolating member 5 is arranged in an arc shape along the rotation direction of the arc-isolating member 5.

[0069] In this embodiment, the housing component 10 also includes a main control board 30, which is electrically connected to the motor 31 to control whether the motor 31 operates. The aforementioned first auxiliary switch 71 and third auxiliary switch 73 are respectively electrically connected to the main control board 30 to send electrical signals to the main control board 30, which then controls whether the motor 31 can stop. The housing component 10 has a control port 105 corresponding to the main control board 30, allowing the main control board 30 to be electrically connected to the control system of the energy storage system through this control port 105.

[0070] This invention relates to a switching device applicable to an energy storage system. The charging and discharging circuit of this energy storage system includes a main circuit and a pre-charging circuit. The main circuit includes a main positive branch and a main negative branch, and a pre-charging resistor is connected to the pre-charging circuit. In application, the other first stationary contact 12 of one of the first switches 1 and the other second stationary contact 22 of the second switch 2 are connected to the main positive branch, the two first stationary contacts 12 of the other first switch 1 are connected to the main negative branch, and the two pre-charging pins 24 of the second switch 2 are respectively connected to the two ends of the pre-charging circuit.

[0071] The initial state of this utility model is as follows: Figure 17 , Figure 18 As shown, at this time, the first moving contact 112 is separated from the two first stationary contacts 12, the second moving contact 212 is separated from the two second stationary contacts 22, and the arc blocking member 5 is blocked between the first moving contact 112 and the first stationary contact 12.

[0072] When the main circuit needs to be closed, motor 31 is started. Motor 31 drives the drive shaft 32 and the first drive wheel 33 to rotate in the direction that closes the first switch 1 through the gear transmission assembly 39. The first drive wheel 33 drives the first driven wheel 35 to rotate in the direction that closes the first switch 1, so that the first energy storage component 37 gradually stores energy. Figure 19 As shown; during this process, since there is a free stroke between the second driving wheel 34 and the first driving wheel 33, the second driving wheel 34 does not rotate.

[0073] When the energy storage spring 372 of the first energy storage component 37 reaches the dead point position (i.e., the position where the energy storage spring 372 is about to release the stored energy), the first drive wheel 33 also completes its idle stroke relative to the second drive wheel 34, causing its limiting protrusion 321 to abut against one end of the stroke groove 341 of the second drive wheel 34 in the circumferential direction. Figure 20 As shown, as the first driving wheel 33 continues to rotate, the energy storage spring 372 of the first energy storage component 37 releases stored energy, causing the first moving contact portion 11 to rotate rapidly until both ends of the first moving contact 112 contact the two first stationary contacts 12 respectively, thus closing the first switch 1. During the rotation of the first moving contact portion 11, the arc-blocking member 5 rotates in the opposite direction, exposing the portion of the first stationary contact 12 that is used to cooperate with the first moving contact 112, so as to facilitate contact with the first moving contact 112. Figure 21 As shown. During this process, the second drive wheel 34 also rotates under the drive of the first drive wheel 33, causing the second energy storage component 38 to gradually store energy. However, the rotation of the second drive wheel 34 is insufficient to make the energy storage spring of the second energy storage component 38 reach the dead point position. After the first switch 1 is closed, the motor 31 stops running, causing the drive shaft 32 and its first drive wheel 33 and second drive wheel 34 to stop rotating.

[0074] After the first switch 1 is closed, the pre-charging circuit is activated. The pre-charging circuit charges the capacitive or near-capacitive load through the pre-charging resistor R1. When the current drops to a certain level, the battery management system detects that the voltage difference of the battery pack has reached equilibrium. At this point, the motor 31 starts running again, driving the drive wheel and its first drive wheel 33 and second drive wheel 34 to continue rotating in the direction that caused the first switch 1 to close, until the energy storage spring of the second energy storage component 38 reaches its dead position. Figure 22 As shown, as the second driving wheel 34 continues to rotate, the energy storage spring of the second energy storage component 38 releases its stored energy, causing the second moving contact 212 part 21 to rotate rapidly until both ends of the second moving contact 212 contact the two second stationary contacts 22 respectively, thus closing the second switch 2. Figure 23 , Figure 24 As shown, this short-circuits the pre-charging circuit, allowing the main circuit to enter normal operating mode. During this process, since there is a free travel between the first drive wheel 33 and the first energy storage component 37, the rotation of the first drive wheel 33 will not affect the state of the first switch 1, i.e., the first switch 1 remains closed.

[0075] When the main circuit needs to be disconnected, motor 31 is started. Motor 31 drives the drive shaft 32 and the first drive wheel 33 to rotate in the direction that disconnects the first switch 1 through gear transmission assembly 39. The first drive wheel 33 drives the first driven wheel 35 to rotate in the direction that disconnects the first switch 1, so that the first energy storage component 37 gradually stores energy. Figure 25 As shown; during this process, since there is a free stroke between the second driving wheel 34 and the first driving wheel 33, the second driving wheel 34 does not rotate.

[0076] When the energy storage spring 372 of the first energy storage component 37 reaches its dead position, the first drive wheel 33 also completes its idle stroke relative to the second drive wheel 34, causing its limiting protrusion 321 to abut against one end of the circumferential stroke groove 341 of the second drive wheel 34. Figure 26 As shown, as the first driving wheel 33 continues to rotate, the energy storage spring 372 of the first energy storage component 37 releases its stored energy, causing the first moving contact portion 11 to rotate rapidly until both ends of the first moving contact 112 separate from the two first stationary contacts 12, thus disconnecting the first switch 1 and breaking the main circuit. During the rotation of the first moving contact portion 11, the arc-isolating member 5 rotates in the opposite direction until it separates the first stationary contact 12 from the first moving contact 112, as shown. Figure 27 As shown. During this process, the second drive wheel 34 also rotates under the drive of the first drive wheel 33, causing the second energy storage component 38 to gradually store energy. However, the rotation of the second drive wheel 34 is insufficient to make the energy storage spring of the second energy storage component 38 reach the dead point position.

[0077] When the energy storage spring of the second energy storage component 38 reaches the dead point position (e.g.) Figure 28 As shown, as the second driving wheel 34 continues to rotate, the energy storage spring of the second energy storage component 38 releases its stored energy, causing the second moving contact 212 portion 21 to rotate rapidly until both ends of the second moving contact 212 separate from the two second stationary contacts 22, thus disconnecting the second switch 2 and canceling the short circuit pre-charge circuit. At this time, the entire switching device returns to normal. Figure 17 , Figure 18 The initial state is shown. During this process, since there is no idle travel between the first drive wheel 33 and the first energy storage component 37, the rotation of the first drive wheel 33 will not affect the state of the first switch 1, that is, the first switch 1 remains in the open state.

[0078] Therefore, compared with the prior art, the switching device of this utility model has fewer components, simpler structure and control logic, lower cost and reduced space occupation, while satisfying the control function of the charging and discharging circuit of the energy storage system.

[0079] The present invention provides a switch device with an indicator function. The parts not described herein are the same as or can be implemented using existing technology.

[0080] The above embodiments are only used to further illustrate a switch device with an indicator function according to the present invention. However, the present invention is not limited to the embodiments. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present invention shall fall within the protection scope of the present invention.

Claims

1. A switch device with an indication function comprising a housing member and at least one switch provided in the housing member, characterized in that: An indicating member is arranged in the housing component corresponding to the at least one switch, and different first indicating marks are arranged on the indicating member corresponding to the closed state and the open state of the switch respectively. The housing component is provided with a first observation part corresponding to the indicating member. The indicating member is linked with the corresponding switch, and the first indicating mark of the indicating member enters the range of the first observation part with the switching of the open and closed states of the switch.

2. The switch device with indication function according to claim 1, characterized in that: The indicating member comprises a rotating shaft, an indicating block and a driving part. The rotating shaft is rotatably arranged in the housing component. The indicating block is arranged at one end of the rotating shaft and close to the first observation part. The first indicating mark is arranged on the indicating block. The other end of the rotating shaft is provided with the driving part which is driven by the switch.

3. The switch device with indication function according to claim 2, characterized in that: The driving part comprises a first driving leg and a second driving leg. The first driving leg and the second driving leg respectively extend along the outside of the rotating shaft. An included angle is formed between the first driving leg and the second driving leg. The tail end of the first driving leg is bent away from the second driving leg.

4. A switch device with indication function according to claim 2 or 3, characterized in that: The switch comprises a movable contact, a static contact and a rotating execution member. The movable contact is in contact with or separated from the static contact under the driving of the execution member. The execution member of the switch corresponding to the indicating member drives the indicating member to rotate when the execution member rotates in the direction of closing or opening of the switch. A reset member is arranged between the indicating member and the housing component. The reset member drives the indicating member to reset when the execution member releases the indicating member.

5. The switch device with indication function according to claim 4, characterized in that: The execution member comprises a coaxially fixed contact support and a cam. The static contact is provided with two. The movable contact is arranged on the contact support. The two ends of the movable contact are respectively in contact with or separated from the two static contacts with the rotation of the contact support. The cam is used to push the driving part of the indicating member to rotate.

6. The switch device with indication function according to claim 4, characterized in that: The reset member is a torsion spring which is sleeved on the rotating shaft. The two ends of the torsion spring are respectively limited in the driving part and the housing component.

7. The switch device with indication function according to claim 3, characterized in that: The switch is provided with multiple switches. Two switches are respectively a first switch and a second switch. The first switch and the second switch are arranged side by side. The indicating member is provided with two. The first driving leg of one indicating member is driven by the first switch. The second driving leg of the other indicating member is driven by the second switch.

8. The switch device with indication function according to claim 4, characterized in that: A driving mechanism is further arranged in the housing component. The driving mechanism comprises a motor and a driving shaft for linkage of the opening and closing of the switch. The driving shaft is driven by the motor to drive the execution member to rotate.

9. The switch device with indication function according to claim 8, characterized in that: The switch is provided with multiple switches. Two switches are respectively a first switch and a second switch. The driving mechanism further comprises a first driving wheel for linkage of the opening and closing of the first switch and a second driving wheel for linkage of the opening and closing of the second switch. The first driving wheel is coaxially fixed with the driving shaft. The second driving wheel is sleeved outside the driving shaft and is provided with an idle stroke between the first driving wheel and / or the driving shaft. The driving shaft controls the rotation of the first driving wheel and the second driving wheel in time sequence.

10. The switch device with indication function according to claim 9, characterized in that: The switch assembly comprises a first auxiliary switch and a second auxiliary switch driven by the actuator of the first switch, and a third auxiliary switch and a fourth auxiliary switch driven by the actuator of the second switch, the first auxiliary switch and the third auxiliary switch are used to control the timing of stopping the operation of the motor, the second auxiliary switch is used to indicate the opening and closing state of the first switch, and the fourth auxiliary switch is used to indicate the opening and closing state of the second switch.

11. A switch device with indication function according to any one of claims 8-10, characterized in that: One end of the driving shaft can be manually driven to rotate, and the driving mechanism further comprises a control component for controlling whether the circuit in which the motor is located is turned on or not; the control component comprises a control switch connected in series with the motor, which is driven to be closed or disconnected by an operable control member; the shell component is provided with a first clearance hole corresponding to one end of the driving shaft, and the shell component is provided with a second clearance hole suitable for the operation of the control member.

12. The switch device with indication function according to claim 11, characterized in that: The control member is slidingly and / or rotatably arranged in the shell component, so that the control member is switched between different positions, the control member has a first position, a second position, in the first position, the control member blocks between one end of the driving shaft and the first clearance hole, and the control switch is closed; in the second position, one end of the driving shaft and the first clearance hole are not blocked, and the control switch is disconnected; the control member also has a third position, and when the control member is in the third position, the control member blocks between one end of the driving shaft and the first clearance hole, and the control switch is disconnected; the shell component is further provided with a locking member which can be pushed and pulled from the second clearance hole, the locking member is pulled out when the control member is in the third position, and limits the control member to switch to the first position or the second position; the locking member is provided with a hanging hole for connecting a padlock.

13. The switch device with indication function according to claim 12, characterized in that: The motor is drivingly connected with the driving shaft through a gear transmission assembly, and the gear transmission assembly comprises a main gear provided on the driving shaft; the control member is provided with a clamping block which clamps the main gear when the control member is in the third position.

14. The switch device with indication function according to claim 12, characterized in that: The control member is provided with different second indication marks corresponding to each position, and the shell component is provided with a second observation part, when the control member is switched to different positions, the corresponding second indication marks enter the second observation part.

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