Change-over switch and energy storage system

Abstract

The utility model relates to the technical field of energy storage equipment, and particularly discloses a change-over switch and an energy storage system, and the change-over switch comprises a drive motor, a moving contact, and a detection assembly. The driving motor drives the moving contact to rotate between a first closing position and a second closing position, and the detection assembly comprises a first detection switch and a second detection switch; when the first detection switch detects that the moving contact is in a first closing position, the driving motor is triggered to cut off a signal; and when the second detection switch detects that the moving contact is in a second closing position, a power-off signal of the driving motor is triggered. The manufacturing cost can be effectively reduced, and the miniaturization design of the change-over switch is facilitated.

Description

Technical Field

[0001] The present application relates to the technical field of energy storage equipment, and in particular to a conversion switch and an energy storage system. Background Art

[0002] With the rise of the new energy industry, energy storage technology has developed rapidly. Usually, a power switch needs to be configured in the energy storage system to perform circuit on-off control conversion. At present, the conversion switch provided by the prior art usually adopts detection elements and controllers to realize the position detection of the moving contact and the start, stop and shutdown control of the drive motor. Among them, the position signal is detected by the detection element and then transmitted to the controller, and then the controller controls the movement state of the motor. The problem is that the existence of the controller not only leads to a higher manufacturing cost of the conversion switch, but also increases the size of the conversion switch. Utility Model Content

[0003] The purpose of the present application is to provide a transfer switch and an energy storage system, which can effectively reduce the manufacturing cost and facilitate the miniaturization design of the transfer switch.

[0004] The embodiment of the present application is implemented as follows:

[0005] In a first aspect, an embodiment of the present application provides a switching switch, comprising a driving motor, a moving contact and a detection component; the driving motor drives the moving contact to rotate between a first closing position and a second closing position, and the detection component comprises a first detection switch and a second detection switch; when the first detection switch detects that the moving contact is in the first closing position, it triggers a power-off signal of the driving motor; when the second detection switch detects that the moving contact is in the second closing position, it triggers a power-off signal of the driving motor.

[0006] As an optional embodiment, the first detection switch is electrically connected in series with the drive motor to form a first control circuit, so that the drive motor drives the moving contact to rotate to the first closed position, and the first detection switch triggers and disconnects the first control circuit; the second detection switch is electrically connected in series with the drive motor to form a second control circuit, so that the drive motor drives the moving contact to rotate to the second closed position, and the second detection switch triggers and disconnects the second control circuit.

[0007] As an optional embodiment, it also includes a protective shell, and a first wiring port and a second wiring port are provided on the outer wall of the protective shell; the first wiring port is connected to the first control circuit, and the second wiring port is connected to the second control circuit.

[0008] As an optional implementation, the detection component is any one of a micro switch, a Hall detection module and an optocoupler detection module.

[0009] As an optional embodiment, it also includes a contact shaft extending in a direction perpendicular to the rotating plane of the moving contact, the driving motor drives the moving contact to rotate via the contact shaft, and a triggering portion capable of triggering the detection component is provided on the contact shaft.

[0010] As an optional embodiment, the trigger portion is arranged at the end of the contact shaft away from the driving motor and extends radially along the contact shaft; the contact shaft can drive the moving contact and the trigger portion to rotate synchronously, and the first detection switch and the second detection switch are arranged on the rotation plane of the trigger portion and are located on both sides of the extension direction of the contact shaft.

[0011] As an optional implementation, a control module is further included, the first detection switch and the second detection switch are electrically connected to the control module respectively, and the control module controls the drive motor to stop rotating through the detection signals of the first detection switch and the second detection switch.

[0012] As an optional embodiment, it also includes a static contact arranged in a first closing position and a second closing position; the moving contact has a clamping portion extending radially along the contact shaft, and when the moving contact is closed with the static contact, the clamping portion is located on both sides of the plane where the static contact is located; or, the static contact has a clamping portion extending radially along the contact shaft; when the moving contact is closed with the static contact, the clamping portion is located on both sides of the plane where the moving contact is located.

[0013] As an optional implementation, the drive motor is connected to the contact shaft via a transmission assembly, and a dead point limiting structure is provided on the transmission assembly.

[0014] In a second aspect, an embodiment of the present application provides an energy storage system, including a battery energy storage module and the above-mentioned conversion switch, wherein the conversion switch is electrically connected to a control unit provided on the battery energy storage module.

[0015] In a preferred embodiment of the present application, the above-mentioned conversion switch includes a driving motor, a moving contact and a detection component; the driving motor drives the moving contact to rotate between a first closing position and a second closing position, and the detection component includes a first detection switch and a second detection switch; when the first detection switch detects that the moving contact is in the first closing position, it triggers a power-off signal of the driving motor; when the second detection switch detects that the moving contact is in the second closing position, it triggers a power-off signal of the driving motor.

[0016] Among them, the first detection switch is electrically connected in series with the drive motor to form a first control circuit, so that the drive motor drives the moving contact to rotate to the first closing position, and the first detection switch triggers and disconnects the first control circuit; the second detection switch is electrically connected in series with the drive motor to form a second control circuit, so that the drive motor drives the moving contact to rotate to the second closing position, and the second detection switch triggers and disconnects the second control circuit.

[0017] The beneficial effects of the embodiments of the present application include:

[0018] In the first aspect, the embodiment of the present application provides a transfer switch, including a drive motor, a moving contact and a detection component; the drive motor of the embodiment of the present application can drive the moving contact to rotate between a first closing position and a second closing position, and the detection component of the embodiment of the present application includes a first detection switch and a second detection switch; when the first detection switch of the embodiment of the present application detects that the moving contact is in the first closing position, it triggers a power-off signal for the drive motor, and when the second detection switch detects that the moving contact is in the second closing position, it triggers a power-off signal for the drive motor. Compared with the prior art, the embodiment of the present application uses the first detection switch and the second detection switch to be connected in series with the drive motor to realize the on-off control of the drive motor circuit, avoids the setting of a large controller, and effectively reduces the volume and manufacturing cost of the transfer switch.

[0019] In a second aspect, an embodiment of the present application provides an energy storage system, including a battery energy storage module and the above-mentioned conversion switch, wherein the conversion switch is electrically connected to a control unit provided on the battery energy storage module. The energy storage system of the embodiment of the present application adopts the above-mentioned conversion switch, which can effectively reduce the manufacturing cost and facilitate the miniaturization design of the conversion switch. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0021] Figure 1 This is one of the structural schematic diagrams of the conversion switch of the embodiment of the present application;

[0022] Figure 2 This is the second structural diagram of the transfer switch according to the embodiment of the present application;

[0023] Figure 3 This is the third structural diagram of the transfer switch of the embodiment of the present application;

[0024] Figure 4 This is a circuit diagram of a conversion switch according to an embodiment of the present application.

[0025] icon:

[0026] 100-conversion switch; 101-drive motor; 102-moving contact; 103-first closing position; 104-second closing position; 105-first detection switch; 106-second detection switch; 107-first control circuit; 108-second control circuit; 109-protective housing; 110-first wiring port; 111-second wiring port; 112-contact shaft; 113-trigger part; 114-transmission assembly. DETAILED DESCRIPTION

[0027] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. The components of the embodiments of the present application described and shown in the drawings here can be arranged and designed in various different configurations.

[0028] Therefore, the following detailed description of the embodiments of the present application provided in the accompanying drawings is not intended to limit the scope of the present application for which protection is sought, but merely represents selected embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the present application.

[0029] It should be noted that similar reference numerals and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further defined and explained in the subsequent drawings. In addition, the terms "first", "second", "third", etc. are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0030] In the description of this application, it should also be noted that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0031] With the rise of the new energy industry, energy storage technology has developed rapidly. Usually, a power switch needs to be configured in the energy storage system to perform circuit on-off control conversion. At present, the conversion switch 100 provided by the prior art usually adopts detection elements and controllers to realize the position detection of the moving contact 102 and the start, stop and shutdown control of the drive motor 101. Among them, the position signal is detected by the detection element and then transmitted to the controller, and then the controller controls the movement state of the motor. The problem is that the existence of the controller not only leads to a higher manufacturing cost of the conversion switch 100, but also leads to an increase in the volume of the conversion switch 100.

[0032] In order to solve the above technical problems, an embodiment of the present application provides a transfer switch 100 and an energy storage system.

[0033] Reference Figure 1 and Figure 2 As shown, an embodiment of the present application provides a switching switch 100, including a driving motor 101, a moving contact 102 and a detection component; the driving motor 101 drives the moving contact 102 to rotate between a first closing position 103 and a second closing position 104, and the detection component includes a first detection switch 105 and a second detection switch 106; when the first detection switch 105 detects that the moving contact 102 is in the first closing position 103, a power-off signal of the driving motor 101 is triggered; when the second detection switch 106 detects that the moving contact 102 is in the second closing position 104, a power-off signal of the driving motor 101 is triggered.

[0034] It should be noted that the detection component in the embodiment of the present application is any one of a micro switch, a Hall detection module and an optocoupler detection module.

[0035] Exemplarily, the first detection switch 105 and the second detection switch 106 are both micro switches.

[0036] Exemplarily, the first detection switch 105 and the second detection switch 106 are Hall detection switches. It should be noted that the Hall detection switch includes a Hall element and a corresponding circuit. When a magnet approaches the Hall element, the magnetic field causes the electrons flowing in the Hall element to be affected by the Lorentz force, generating a Hall voltage. The change in this voltage is detected by the circuit and converted into a switch signal.

[0037] An optocoupler detection switch may also be used, wherein the optocoupler detection switch is a non-contact electronic switch designed using the optocoupler principle, which transmits information between input and output via optical signals without physical contact, thereby achieving signal detection.

[0038] Those skilled in the art can make settings as needed.

[0039] The transfer switch 100 provided in the embodiment of the present application includes a drive motor 101, a moving contact 102 and a detection component; the drive motor 101 in the embodiment of the present application can drive the moving contact 102 to rotate between a first closing position 103 and a second closing position 104, and the detection component in the embodiment of the present application includes a first detection switch 105 and a second detection switch 106; when the first detection switch 105 in the embodiment of the present application detects that the moving contact 102 is in the first closing position 103, it triggers a power-off signal of the drive motor 101, and when the second detection switch 106 detects that the moving contact 102 is in the second closing position 104, it triggers a power-off signal of the drive motor 101. Compared with the prior art, the embodiment of the present application uses the first detection switch 105 and the second detection switch to be connected in series with the drive motor 101 to realize the on-off control of the drive motor 101 circuit, avoids the setting of a large-volume controller, and effectively reduces the volume and manufacturing cost of the transfer switch 100.

[0040] Reference Figure 3 as well as Figure 4 As shown, as an optional embodiment, the first detection switch 105 is electrically connected in series with the drive motor 101 to form a first control circuit 107, so that the drive motor 101 drives the moving contact 102 to rotate to the first closing position 103, and the first detection switch 105 triggers and disconnects the first control circuit 107; the second detection switch 106 is electrically connected in series with the drive motor 101 to form a second control circuit 108, so that the drive motor 101 drives the moving contact 102 to rotate to the second closing position 104, and the second detection switch 106 triggers and disconnects the second control circuit 108.

[0041] In the embodiment of the present application, a first control circuit 107 is formed by electrically connecting a first detection switch 105 and a drive motor 101 in series, and a second control circuit 108 is formed by electrically connecting a second detection switch 106 and a drive motor 101 in series, so as to realize rotation switching of the moving contact 102 between the first closing position 103 and the second closing position 104 and stop at the position.

[0042] The embodiment of the present application further includes a protective shell 109 , and a first wiring port 110 and a second wiring port 111 are provided on the outer wall of the protective shell 109 ; the first wiring port 110 is connected to the first control circuit 107 , and the second wiring port 111 is connected to the second control circuit 108 .

[0043] By connecting the power circuit to be controlled to the first connection port 110, the first control circuit 107 is connected when the first detection switch 105 is connected, and is disconnected when the first detection switch 105 is opened, thereby forming an efficient on-off control. It should be noted that when the moving contact 102 moves to the first closing position 103, the first detection switch 105 is opened to achieve disconnection, so as to prevent the driving motor 101 from continuing to move after the moving contact 102 is in place.

[0044] Similarly, by connecting the power circuit to be controlled to the second wiring port 111, the second control circuit 108 is connected when the second detection switch 106 is connected, and is disconnected when the second detection switch 106 is opened, thereby forming an efficient on-off control. It should be noted that when the moving contact 102 moves to the second closing position 104, the second detection switch 106 is opened to achieve disconnection, so as to prevent the driving motor 101 from continuing to move after the moving contact 102 rod is in place.

[0045] Reference Figure 1 and Figure 2 As shown, as an optional embodiment, it also includes a contact shaft 112 whose extension direction is perpendicular to the rotation plane of the moving contact 102. The driving motor 101 drives the moving contact 102 to rotate through the contact shaft 112. A triggering part 113 that can trigger the detection component is provided on the contact shaft 112.

[0046] Furthermore, the trigger portion 113 is arranged at the end of the contact shaft 112 away from the driving motor 101 and protrudes radially extending along the contact shaft 112; the contact shaft 112 can drive the moving contact 102 and the trigger portion 113 to rotate synchronously, and the first detection switch 105 and the second detection switch 106 are arranged on the rotation plane of the trigger portion 113 and are located on both sides of the extension direction of the contact shaft 112.

[0047] It should be noted that the trigger part 113 may be an extended swing arm disposed at the end of the contact shaft 112 ; the extending direction of the extended swing arm is parallel to the rotation plane of the moving contact 102 . The trigger part 113 may also be a cam disposed at the end of the contact shaft 112 .

[0048] Different from the above-mentioned embodiments, the embodiments of the present application further include a control module. The first detection switch 105 and the second detection switch 106 are electrically connected to the control module respectively. The control module controls the drive motor 101 to stop rotating through the detection signals of the first detection switch 105 and the second detection switch 106 .

[0049] Exemplarily, both the first detection switch 105 and the second detection switch 106 are micro switches, and when the contact shaft 112 is driven to rotate, the trigger portion 113 can touch a button on the micro switch.

[0050] Reference Figure 1 As shown, more preferably, there are two first detection switches 105 in the embodiment of the present application. When in the first closing position 103, the contact part can touch the buttons on the two first detection switches 105 at the same time, one of the detection switches is connected to the drive motor 101, and the other detection switch is connected to the control module, so as to realize the transmission of the closing signal of the first closing position 103, making it convenient for the staff to intuitively obtain the closing information.

[0051] Similarly, the embodiment of the present application has two second detection switches 106. When in the second closing position 104, the contact part can touch the buttons on the two second detection switches 106 at the same time. One of the detection switches is connected to the drive motor 101, and the other detection switch is connected to the control module, thereby realizing the transmission of the closing signal of the second closing position 104, making it convenient for the staff to intuitively obtain the closing information.

[0052] As an optional embodiment, it also includes a static contact arranged in the first closing position 103 and the second closing position 104; the moving contact 102 has a clamping portion extending radially along the contact shaft 112, and when the moving contact 102 is closed with the static contact, the clamping portion is located on both sides of the plane where the static contact is located.

[0053] Different from the above-mentioned implementation, the embodiment of the present application has a clamping portion on the stationary contact extending radially along the contact shaft 112 ; when the switch is closed, the clamping portion is located on both sides of the plane where the moving contact 102 is located.

[0054] The embodiment of the present application adopts a clamping moving contact 102 structure to achieve closing contact with the static contact. The moving contact 102 clamps the static contact through the clamping part, or the static contact clamps the moving contact 102 through the clamping part to achieve locking positioning.

[0055] It should be noted that a snap-fit ​​structure may also be provided so that the moving contact 102 and the stationary contact are in contact through the snap-fit ​​structure.

[0056] Reference Figure 2 and Figure 3 As shown, as an optional implementation, the driving motor 101 is connected to the contact shaft 112 via a transmission assembly 114 , and a dead point limiting structure is provided on the transmission assembly 114 .

[0057] Exemplarily, the transmission assembly 114 of the embodiment of the present application adopts a turbine worm gear structure, and one end of the movement stroke of the worm wheel on the worm gear corresponds to the movement of the moving contact 102 to the first closing position 103, and the other end of the movement stroke of the worm wheel on the worm gear corresponds to the movement of the moving contact 102 to the second closing position 104. It should be noted that the turbine worm gear structure has the characteristics of one-way transmission, and the drive motor 101 can drive the contact 102 to rotate through the turbine worm gear, but the moving contact 102 cannot reversely drag the drive motor 101 to rotate after closing.

[0058] Exemplarily, the transmission assembly 114 of the embodiment of the present application may also adopt a connecting rod transmission structure, wherein the connecting rod transmission structure has a dead point limit structure capable of locking the moving contact 102 to ensure reliable closing of the moving contact 102 and the static contact.

[0059] An embodiment of the present application provides an energy storage system, including a battery energy storage module and the above-mentioned conversion switch 100, and the conversion switch 100 is electrically connected to a control unit provided on the battery energy storage module.

[0060] The energy storage system of the embodiment of the present application adopts the above-mentioned conversion switch 100, which can effectively reduce the manufacturing cost and is conducive to the miniaturization design of the conversion switch 100.

[0061] In a preferred embodiment of the present application, the above-mentioned conversion switch 100 includes a driving motor 101, a moving contact 102 and a detection component; the driving motor 101 drives the moving contact 102 to rotate between a first closing position 103 and a second closing position 104, and the detection component includes a first detection switch 105 and a second detection switch 106; when the first detection switch 105 detects that the moving contact 102 is in the first closing position 103, it triggers a power-off signal of the driving motor 101; when the second detection switch 106 detects that the moving contact 102 is in the second closing position 104, it triggers a power-off signal of the driving motor 101.

[0062] Among them, the first detection switch 105 is electrically connected in series with the drive motor 101 to form a first control circuit 107, so that the drive motor 101 drives the moving contact 102 to rotate to the first closing position 103, and the first detection switch 105 triggers and disconnects the first control circuit 107; the second detection switch 106 is electrically connected in series with the drive motor 101 to form a second control circuit 108, so that the drive motor 101 drives the moving contact 102 to rotate to the second closing position 104, and the second detection switch 106 triggers and disconnects the second control circuit 108.

[0063] The above are only preferred embodiments of the present application and are not intended to limit the present application. For those skilled in the art, the present application may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A transfer switch (100), characterized in that: The invention comprises a driving motor (101), a moving contact (102) and a detection component; the driving motor (101) drives the moving contact (102) to rotate between a first closing position (103) and a second closing position (104); the detection component comprises a first detection switch (105) and a second detection switch (106); when the first detection switch (105) detects that the moving contact (102) is in the first closing position (103), a power-off signal of the driving motor (101) is triggered; when the second detection switch (106) detects that the moving contact (102) is in the second closing position (104), a power-off signal of the driving motor (101) is triggered.

2. The transfer switch (100) according to claim 1, characterized in that: The first detection switch (105) is electrically connected in series with the drive motor (101) to form a first control circuit (107), so that the drive motor (101) drives the moving contact (102) to rotate to a first closing position (103), and the first detection switch (105) triggers and disconnects the first control circuit (107); the second detection switch (106) is electrically connected in series with the drive motor (101) to form a second control circuit (108), so that the drive motor (101) drives the moving contact (102) to rotate to a second closing position (104), and the second detection switch (106) triggers and disconnects the second control circuit (108).

3. The transfer switch (100) according to claim 2, characterized in that: It also comprises a protective shell (109), wherein a first wiring port (110) and a second wiring port (111) are provided on the outer wall of the protective shell (109); the first wiring port (110) is connected to the first control circuit (107), and the second wiring port (111) is connected to the second control circuit (108).

4. The transfer switch (100) according to claim 1, characterized in that: The detection component is any one of a micro switch, a Hall detection module and an optical coupler detection module.

5. The transfer switch (100) according to any one of claims 1 to 4, characterized in that: It also includes a contact shaft (112) whose extension direction is perpendicular to the rotation plane of the moving contact (102); the drive motor (101) drives the moving contact (102) to rotate via the contact shaft (112); and a triggering portion (113) capable of triggering the detection component is provided on the contact shaft (112).

6. The transfer switch (100) according to claim 5, characterized in that: The trigger portion (113) is arranged at the end of the contact shaft (112) away from the drive motor (101) and is a protrusion extending radially along the contact shaft (112); the contact shaft (112) can drive the moving contact (102) and the trigger portion (113) to rotate synchronously, and the first detection switch (105) and the second detection switch (106) are arranged on the rotation plane of the trigger portion (113) and are located on both sides of the extension direction of the contact shaft (112).

7. The transfer switch (100) according to claim 1, characterized in that: It also includes a control module, wherein the first detection switch (105) and the second detection switch (106) are electrically connected to the control module respectively, and the control module controls the drive motor (101) to stop rotating through the detection signals of the first detection switch (105) and the second detection switch (106).

8. The transfer switch (100) according to claim 1, characterized in that: It also includes a static contact arranged in a first closing position (103) and a second closing position (104); the moving contact (102) has a clamping portion extending radially along the contact shaft (112); when the switch is closed, the clamping portion is located on both sides of the plane where the static contact is located; or, the static contact has a clamping portion extending radially along the contact shaft (112); when the switch is closed, the clamping portion is located on both sides of the plane where the moving contact (102) is located.

9. The transfer switch (100) according to claim 5, characterized in that: The driving motor (101) is connected to the contact shaft (112) via a transmission assembly (114), and a dead point limiting structure is provided on the transmission assembly (114).

10. An energy storage system, characterized in that: It comprises a battery energy storage module and a conversion switch (100) as claimed in any one of claims 1 to 9, wherein the conversion switch (100) is electrically connected to a control unit arranged on the battery energy storage module.

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