Electric switchgear

Abstract

The present invention discloses an electric switch device, comprising: a drawer device, an electrical connection device, a driving mechanism and a locking mechanism. The driving mechanism drives the circuit breaker body to move, and the relative positions of the circuit breaker body and the drawer device include: a separation position, a test position, a connection unclamped position and a connection clamped position. In the separation position, the busbar of the circuit breaker body is separated from the electrical connection device, and the circuit breaker body cannot be closed. In the test position, the busbar of the circuit breaker body is separated from the electrical connection device, and the circuit breaker body can be closed. In the connection unclamped position, the busbar of the circuit breaker body contacts the electrical connection device, the electrical connection device does not clamp the busbar, and the circuit breaker body cannot be closed. In the connection clamped position, the busbar of the circuit breaker body contacts the electrical connection device, the electrical connection device clamps the busbar, and the circuit breaker body can be closed.

Description

Technical Field

[0001] The present invention relates to the field of electrical devices, and more particularly to an electric switch device with a drawable structure. Background Art

[0002] The electric switch device usually has a withdrawable structure. Commonly used electric switch devices include: universal circuit breakers, molded case circuit breakers, automatic transfer switches with drawer devices, medium voltage circuit breakers, medium voltage switch cabinets, etc. The device with a withdrawable structure includes a body and a drawer device. A bridge-type contact is used as the body busbar on the body, and a contact bridge is provided on the drawer device for electrical connection with the body busbar. The contact bridge on the drawer device is connected to the external input and output terminals. When the body is pushed into the drawer device, the body busbar contacts the contact bridge to form a conductive path, and the body is connected to the external input and output terminals. When the body is pulled out of the drawer device, the body busbar is separated from the contact bridge, the conductive path is cut off, and isolation is achieved for testing or maintenance. The body busbar and the contact bridge constitute the electrical connection device of the withdrawable structure electrical device. In some products, the bridge-type contact is also set on the withdrawable device and the contact bridge is set on the body, but in this configuration, the busbar and the contact bridge still constitute the electrical connection device of the withdrawable structure electrical device, which is the same as the aforementioned structure in basic principle.

[0003] In the patent applications with publication numbers CN111403939A and CN111403938A, and patents with announcement numbers CN211017487U and CN211045800U, the applicant of the present application has introduced the defects of the electrical connection devices used in the prior art, and proposed an electrical connection device with a new structure. The electrical connection device with a new structure separates the insertion and withdrawal process from the clamping process, reducing the difficulty of operation, while also ensuring the clamping force and the contact area of ​​the electrical connection, effectively improving the electrical performance of the electrical connection.

[0004] Since the structure of the novel electrical connection device is significantly different from that of the conventional electrical connection device, the electrical switch device using the novel electrical connection device needs to be equipped with a corresponding driving operating mechanism. Summary of the invention

[0005] According to one embodiment of the present invention, an electric switch device is provided, comprising: a drawer device, an electrical connection device, a driving mechanism and a locking mechanism. The circuit breaker body enters or exits the drawer device. The electrical connection device is mounted on the drawer device, and the electrical connection device has a clamping mechanism, and the electrical connection device connects the busbar of the circuit breaker body and the external circuit. The driving mechanism drives the circuit breaker body to move, so that the busbar of the circuit breaker body enters or leaves the electrical connection device area. The locking mechanism drives the clamping mechanism of the electrical connection device, so that the electrical connection device clamps or loosens the busbar of the circuit breaker body. The driving mechanism drives the circuit breaker body to move, and the relative position of the circuit breaker body and the drawer device includes: a separation position, a test position, a connection unclamped position and a connection clamped position. In the separation position, the busbar of the circuit breaker body is separated from the electrical connection device, and the circuit breaker body cannot be closed. In the test position, the busbar of the circuit breaker body is separated from the electrical connection device, and the circuit breaker body can be closed. In the connection unclamped position, the busbar of the circuit breaker body contacts the electrical connection device, the electrical connection device does not clamp the busbar, and the circuit breaker body cannot be closed. In the connection clamping position, the busbar of the circuit breaker body contacts the electrical connection device, the electrical connection device clamps the busbar, and the circuit breaker body can be closed.

[0006] In one embodiment, the driving mechanism is installed on the drawer device, and the driving mechanism includes: a driving shaft, a sliding plate, a main shaft and a supporting plate. One end of the driving shaft is connected to a handle, and the handle is rotated to drive the driving shaft to rotate. The sliding plate is installed on the driving shaft, and the rotation of the driving shaft is converted into the sliding of the sliding plate. The driving shaft drives the sliding plate to move, and the sliding plate moves toward the inside or outside of the drawer device, driving the circuit breaker body to enter or exit the drawer device. The main shaft is installed on the drawer device, and the main shaft cooperates with the sliding plate. The sliding plate moves to a separation position, a test position, a connection unclamped position and a connection clamped position, and the main shaft rotates to a separation angle, a test angle, a connection unclamped angle and a connection clamped angle accordingly. The supporting plate is installed on the drawer device, and the supporting plate drives the circuit breaker body to move. The supporting plate cooperates with the main shaft, and the main shaft rotates to a separation angle, a test angle, a connection unclamped angle and a connection clamped angle, and the supporting plate drives the circuit breaker body to a separation position, a test position, a connection unclamped position and a connection clamped position.

[0007] In one embodiment, the sliding plate is provided with a first driving groove, a second driving groove, an unlocking groove and an interlocking groove. The main shaft is provided with a first cantilever and a second cantilever, the first cantilever has a forked first driving rod and an interlocking rod, and the second cantilever has a forked second driving rod and an unlocking rod. The first driving groove and the interlocking groove form a driving coupling with the first driving rod and the interlocking rod on the first cantilever, and the second driving groove and the unlocking groove form a driving coupling with the second driving rod and the unlocking rod on the second cantilever.

[0008] In one embodiment, the circuit breaker body enters the drawer device and passes through the separated position, the test position, the connected unclamped position and the connected clamped position in sequence;

[0009] In the separation position, the main shaft is at the separation angle, the first driving rod is located in the first driving groove, the second driving rod is located in the second driving groove, the unlocking rod and the unlocking groove do not interact, and the interlocking rod and the interlocking groove do not interact;

[0010] Move from the separation position to the test position, the sliding plate moves toward the inner side of the drawer device, the outer end of the first driving groove pushes the first driving rod, and the outer end of the second driving groove pushes the second driving rod, so that the main shaft rotates to the test angle, the unlocking rod and the unlocking groove do not act, and the interlocking rod and the interlocking groove do not act;

[0011] Move from the test position to the connection unclamped position, the sliding plate moves toward the inner side of the drawer device, the outer end of the first driving groove pushes the first driving rod until the first driving rod escapes from the first driving groove, and the outer end of the second driving groove pushes the second driving rod until the second driving rod escapes from the second driving groove, so that the main shaft rotates to the connection unclamped angle, the unlocking rod enters the unlocking groove but the unlocking rod and the unlocking groove do not interact, and the interlocking rod and the interlocking groove do not interact;

[0012] Move from the connection unclamped position to the connection clamped position, the sliding plate moves toward the inner side of the drawer device, the outer end of the unlocking groove pushes the unlocking rod to rotate the main shaft to the connection clamping angle, and the interlocking rod enters the interlocking groove but the interlocking rod and the interlocking groove do not interact.

[0013] In one embodiment, the circuit breaker body is withdrawn from the drawer device, passing through a connection clamping position, a connection unclamping position, a test position and a separation position in sequence;

[0014] In the connection clamping position, the main shaft is located at the connection clamping angle, the interlocking rod is located in the interlocking groove, the unlocking rod is located in the unlocking groove, the first driving rod and the first driving groove do not interact, and the second driving rod and the second driving groove do not interact;

[0015] Move from the connection clamping position to the connection unclamping position, the sliding plate moves toward the outside of the drawer device, the inner end of the interlocking groove pushes the interlocking rod until the interlocking rod escapes from the interlocking groove, so that the main shaft rotates to the connection unclamping angle, the unlocking rod is located in the unlocking groove but the unlocking rod and the unlocking groove do not interact, the first driving rod and the first driving groove do not interact, and the second driving rod and the second driving groove do not interact;

[0016] From the connection unclamped position to the test position, the sliding plate moves toward the outside of the drawer device, and the inner end of the unlocking groove pushes the unlocking rod, so that the main shaft rotates from the connection unclamped angle to the test angle, the first driving rod enters the first driving groove, the second driving rod enters the second driving groove, the inner end of the unlocking groove pushes the unlocking rod until the unlocking rod escapes from the unlocking groove, the inner end of the first driving groove continues to push the first driving rod, and the inner end of the second driving groove continues to push the second driving rod, so that the main shaft rotates to the test angle;

[0017] From the test position to the separation position, the sliding plate moves toward the outside of the drawer device, the inner end of the first drive groove pushes the first drive rod, and the inner end of the second drive groove pushes the second drive rod, so that the main shaft rotates to the separation angle, the first drive rod remains in the first drive groove, and the second drive rod remains in the second drive groove.

[0018] In one embodiment, transmission gears are installed at both ends of the main shaft, the bottom of the support plate is circular and has transmission teeth, the transmission teeth are engaged with the transmission gears, and the rotation of the main shaft drives the support plate to rotate. The inner side wall of the support plate extends to the top to form an interlocking plate, the inner side end of the top of the support plate forms a driving groove, the outer side end of the top of the support plate forms a connecting surface, and the top of the outer side wall of the support plate is a convex angle to form an exit drive part.

[0019] In one embodiment, it further comprises a side slide plate, the side slide plate has an entry shaft pin and an exit shaft pin, the circuit breaker body is mounted on the side slide plate, the entry shaft pin is located on the inner side, and the exit shaft pin is located on the outer side, the circuit breaker body enters the drawer device, and passes through the separation position, the test position, the connection unclamped position and the connection clamped position in sequence;

[0020] In the separation position, the main shaft is located at the separation angle, the support plate is also located at the separation angle, the entry shaft pin of the side slide plate is located in the driving groove, and the circuit breaker body is located at the separation position;

[0021] Move from the separation position to the test position, the main shaft rotates from the separation angle to the test angle, driving the support plate to rotate from the separation angle to the test angle, and the outer end of the driving groove pushes the entry shaft pin of the side slide plate to drive the circuit breaker body to move from the separation position to the test position;

[0022] Move from the test position to the connection unclamped position, the main shaft rotates from the test angle to the connection unclamped angle, driving the support plate to rotate from the test angle to the connection unclamped angle, and the outer end of the driving groove pushes the entry shaft pin of the side slide until the entry shaft pin escapes from the driving groove and stays on the connection surface of the support plate, driving the circuit breaker body to move from the test position to the connection unclamped position;

[0023] Move from the unclamped connection position to the clamped connection position, the main shaft rotates from the unclamped connection angle to the clamped connection angle, driving the support plate to rotate from the unclamped connection angle to the clamped connection angle, the entry shaft pin slides on the connection surface of the support plate, the support plate and the entry shaft pin do not interact, and the circuit breaker body does not move.

[0024] In one embodiment, the circuit breaker body is withdrawn from the drawer device, passing through a connection clamping position, a connection unclamping position, a test position and a separation position in sequence;

[0025] In the connection clamping position, the spindle is located at the connection clamping angle, the support plate is located at the connection clamping angle, the entry shaft pin of the side slide is located on the connection surface of the support plate, and the exit shaft pin of the side slide does not contact the support plate;

[0026] Move from the connection clamping position to the connection unclamping position, the main shaft rotates from the connection clamping angle to the connection unclamping angle, driving the support plate to rotate from the connection clamping angle to the connection unclamping angle, the entry shaft pin slides on the connection surface of the support plate, the support plate and the entry shaft pin and the exit shaft pin are not in action, and the circuit breaker body does not move;

[0027] From the connection unclamped position to the test position, the main shaft rotates from the connection unclamped angle to the test angle, driving the support plate to rotate from the connection unclamped angle to the test angle, the exit drive portion of the support plate pushes the exit shaft pin, so that the circuit breaker body moves outward, and the entry shaft pin enters the drive groove from the connection surface of the support plate, the exit shaft pin is separated from the support plate, and the inner side end of the drive groove pushes the entry shaft pin, so that the circuit breaker body continues to move outward to the test position;

[0028] From the test position to the separation position, the main shaft rotates from the test angle to the separation angle, driving the support plate to rotate from the test angle to the separation angle, and the inner end of the driving groove pushes the shaft pin into place, so that the circuit breaker body moves outward to the separation position.

[0029] In one embodiment, the electric switch device further comprises an interlocking mechanism, which cooperates with the tripping rod of the circuit breaker body to allow or prevent the circuit breaker body from closing. The interlocking mechanism is mounted on the drawer device, and the interlocking mechanism comprises: a drawer interlocking member, a drawer push rod and an interlocking plate. The drawer interlocking member is mounted on the drawer device, the drawer interlocking member is close to the outside of the drawer device, the outer end and the inner end of the drawer interlocking member form a protruding interlocking portion, and the middle of the drawer interlocking member forms a recessed release portion. The drawer push rod is mounted on the drawer device, the drawer push rod is located on the inner side of the drawer interlocking member, the middle part of the drawer push rod is rotatably connected to the drawer device through a rotating shaft, the top of the drawer push rod is a horizontal interlocking rod, the bottom of the drawer push rod is an inclined trigger rod, the drawer push rod has an interlocking position and a release position, the interlocking rod is pressed downward in the interlocking position, and the interlocking rod is lifted upward in the release position, the drawer push rod has a push rod spring, and the spring force of the push rod spring causes the drawer push rod to rotate toward the release position. The interlocking plate is formed by extending the inner side wall of the support plate to the top.

[0030] In one embodiment, a tripping rod is provided on the circuit breaker body. When the tripping rod is locked, the circuit breaker body cannot be closed. When the tripping rod is released, the circuit breaker body can be closed. The circuit breaker body enters the drawer device and passes through a separation position, a test position, a connection unclamped position, and a connection clamped position in sequence.

[0031] In the separated position, the interlocking part at the outer end of the drawer interlock locks the tripping rod, and the circuit breaker body cannot be closed;

[0032] Move from the separation position to the test position, the circuit breaker body moves inward, the trip rod enters the recessed release portion in the middle of the drawer interlock, the trip rod is released, and the circuit breaker body can be closed;

[0033] Move from the test position to the connection unclamped position, the circuit breaker body moves inward, the trip rod escapes from the release portion of the drawer interlocking piece, and is locked by the interlocking portion at the inner end of the drawer interlocking piece, the circuit breaker body cannot be closed, the circuit breaker body continues to move inward, the interlocking plate rotates with the support plate and contacts the triggering rod of the drawer push rod, the drawer push rod rotates from the release position to the interlocking position, the trip rod is separated from the drawer interlocking piece but the trip rod continues to be locked by the interlocking rod of the drawer push rod, the circuit breaker body cannot be closed;

[0034] Move from the connection unclamped position to the connection clamped position, the circuit breaker body does not move, the interlocking plate rotates with the support plate and separates from the trigger rod of the drawer push rod, the drawer push rod rotates from the interlocking position to the release position under the action of the push rod spring, the interlocking rod of the drawer push rod releases the trip rod, and the circuit breaker body can be closed.

[0035] In one embodiment, the circuit breaker body is withdrawn from the drawer device, passing through a connection clamping position, a connection unclamping position, a test position and a separation position in sequence;

[0036] In the connection clamping position, the drawer push rod is in the release position under the action of the push rod spring, the trip rod is released, and the circuit breaker body can be closed;

[0037] Move from the connection clamping position to the connection unclamping position, the circuit breaker body does not move, the interlocking plate rotates with the support plate and contacts the trigger rod of the drawer push rod, the drawer push rod rotates from the release position to the interlocking position under the action of the interlocking plate, the interlocking rod of the drawer push rod locks the tripping rod, and the circuit breaker body cannot be closed;

[0038] From the connection unclamped position to the test position, the circuit breaker body moves outward, the tripping rod is separated from the interlocking rod of the drawer push rod but continues to be locked by the interlocking part at the inner end of the drawer interlocking part, and the circuit breaker body cannot be closed. The circuit breaker body moves to the test position, the tripping rod enters the recessed release part in the middle of the drawer interlocking part, the tripping rod is released, and the circuit breaker body can be closed;

[0039] From the test position to the separation position, the circuit breaker body moves outward, the trip rod escapes from the release portion of the drawer interlock, and is locked by the interlock portion at the outer end of the drawer interlock, so that the circuit breaker body cannot be closed.

[0040] In one embodiment, the driving mechanism drives the locking mechanism so that the locking mechanism drives the clamping mechanism of the electrical connection device, and the electrical connection device clamps or releases the busbar of the circuit breaker body. The locking mechanism is installed on the drawer device, and the locking mechanism includes: a locking gear, a locking transmission shaft and a locking rack. The locking gear is installed on the drawer device, and the locking gear can rotate. The locking transmission shaft connects the locking gear and the clamping mechanism of the electrical connection device, and the locking gear rotates, and the clamping mechanism is driven to clamp or release the busbar of the circuit breaker body through the locking transmission shaft. The locking rack is formed on the sliding plate, and the locking rack extends from the inner side end of the sliding plate toward the outside. Among them, when the sliding plate moves inward, the locking rack contacts and engages with the locking gear, driving the locking gear to rotate in the clamping direction, and the clamping mechanism clamps the busbar of the circuit breaker body. The sliding plate moves outward, driving the locking gear to rotate in the release direction, and the clamping mechanism releases the busbar of the circuit breaker body. The sliding plate continues to move outward, and the locking rack is disengaged from the locking gear.

[0041] In one embodiment, the circuit breaker body enters the drawer device and passes through the separated position, the test position, the connected unclamped position and the connected clamped position in sequence;

[0042] In the separation position and the test position, the locking gear is disengaged from the locking rack;

[0043] Move from the test position to the connection unclamped position, the sliding plate and the circuit breaker body move inward, the busbar of the circuit breaker body gradually enters the electrical connection device, the locking rack contacts and engages with the locking gear, driving the locking gear to rotate in the clamping direction, and the clamping mechanism gradually clamps;

[0044] When moving from the connection unclamped position to the connection clamped position, the circuit breaker body does not move, the busbar of the circuit breaker body completely enters the electrical connection device, the sliding plate continues to move inward, the locking rack engages with the locking gear, driving the locking gear to continue to rotate in the clamping direction, and the clamping mechanism clamps the busbar of the circuit breaker body.

[0045] In one embodiment, the circuit breaker body is withdrawn from the drawer device, passing through a connection clamping position, a connection unclamping position, a test position and a separation position in sequence;

[0046] Move from the connection clamping position to the connection unclamping position, the circuit breaker body does not move, the sliding plate moves outward, the locking rack engages with the locking gear, driving the locking gear to rotate in the loosening direction, and the clamping mechanism loosens the busbar of the circuit breaker body;

[0047] From the connection unclamped position to the test position, the sliding plate and the circuit breaker body move outward, the busbar of the circuit breaker body gradually withdraws from the electrical connection device, the locking rack engages with the locking gear, driving the locking gear to continue to rotate in the loosening direction, the clamping mechanism continues to loosen, the sliding plate and the circuit breaker body move outward to the test position, the busbar of the circuit breaker body is separated from the electrical connection device, and the locking rack is disengaged from the locking gear;

[0048] From the test position to the separation position, the locking gear is disengaged from the locking rack.

[0049] In one embodiment, the circuit breaker body enters the drawer device and passes through the separated position, the test position, the connected unclamped position and the connected clamped position in sequence;

[0050] In the separation position and the test position, the locking gear is disengaged from the locking rack;

[0051] Move from the test position to the connection unclamped position, the sliding plate and the circuit breaker body move inward, the busbar of the circuit breaker body gradually enters the electrical connection device, and the locking rack is disengaged from the locking gear;

[0052] When moving from the connection unclamped position to the connection clamped position, the circuit breaker body does not move, the busbar of the circuit breaker body completely enters the electrical connection device, the sliding plate continues to move inward, the locking rack contacts and engages with the locking gear, driving the locking gear to rotate in the clamping direction, and the clamping mechanism clamps the busbar of the circuit breaker body.

[0053] In one embodiment, the circuit breaker body is withdrawn from the drawer device, passing through a connection clamping position, a connection unclamping position, a test position and a separation position in sequence;

[0054] Move from the connection clamping position to the connection unclamping position, the circuit breaker body does not move, the sliding plate moves outward, the locking rack engages with the locking gear, driving the locking gear to rotate in the loosening direction, the clamping mechanism releases the busbar of the circuit breaker body, the sliding plate moves outward to the connection unclamping position, and the locking rack disengages from the locking gear;

[0055] From the connection unclamped position to the test position, the sliding plate and the circuit breaker body move outward, the busbar of the circuit breaker body gradually withdraws from the electrical connection device, and the locking rack is disengaged from the locking gear;

[0056] From the test position to the separation position, the locking gear is disengaged from the locking rack.

[0057] The electric switch device of the present invention has an electric connection device of a new structure, and the electric connection device can be configured with a large clamping force to clamp the main body busbar as needed, so that the overall contact resistance of the electrical device is greatly reduced, especially in long-term use, the power consumption is greatly reduced, and the use cost is greatly saved. The higher the rated current of the electrical device, the more significant this advantage is. On the other hand, the reduction of contact resistance reduces the temperature rise of the product and the heat generation of the electrical device. There is no need to consider a large heat dissipation space, which is conducive to reducing the size of the product and improving the reliability of long-term use. The electric switch device of the present invention provides a drawer device, a drive mechanism, a locking mechanism and an interlocking mechanism matched with the electric connection device. Combined with the characteristics of the electric connection device, the electric switch device of the present invention has four working positions: a separation position, a test position, a connection unclamped position and a connection clamped position, ensuring the operability and safety of the electric switch device. On the other hand, the entry of the busbar of the circuit breaker body into the electrical connection device and the electrical contact clamping between the two are divided into two processes: connection unclamped and connection clamped. The operating force of the circuit breaker body movement and the clamping force of the electrical connection device are not affected by each other, which greatly reduces the operating force of the circuit breaker body entering the drawer device during the entire process, and there is no need to compromise between the two forces. BRIEF DESCRIPTION OF THE DRAWINGS

[0058] The above and other features, properties and advantages of the present invention will become more apparent through the following description in conjunction with the accompanying drawings and embodiments, in which the same reference numerals always represent the same features, wherein:

[0059] Figure 1a and Figure 1b The structure diagram of an electric switch device according to an embodiment of the present invention is disclosed, wherein Figure 1a Reveals the state that the circuit breaker body has not yet entered the drawer device, Figure 1b The state of the circuit breaker body after entering the drawer device is disclosed.

[0060] Figure 2a , Figure 2b , Figure 2c and Figure 2d A structural diagram of a driving mechanism in an electric switch device according to an embodiment of the present invention is disclosed.

[0061] Figure 3 A structural diagram of a locking mechanism in an electric switch device according to an embodiment of the present invention is disclosed.

[0062] Figure 4 A structural diagram of a drawer interlocking member of an interlocking mechanism in an electric switch device according to an embodiment of the present invention is disclosed.

[0063] Figure 5 The overall structural diagram of an electric switch device according to an embodiment of the present invention is disclosed.

[0064] Figure 6 A side structural diagram of an electrical switch device in a disengaged position according to an embodiment of the present invention is disclosed.

[0065] Figure 7a and Figure 7b A structural diagram of a driving mechanism of an electric switch device in a disengaged position according to an embodiment of the present invention is disclosed.

[0066] Figure 8 A side structural diagram of an electric switch device in a test position according to an embodiment of the present invention is disclosed.

[0067] Figure 9a and Figure 9b A structural diagram of a driving mechanism of an electric switch device in a test position according to an embodiment of the present invention is disclosed.

[0068] Fig.10 A side structural view of an electrical switch device in a connected unclamped position according to an embodiment of the present invention is disclosed.

[0069] Fig.11a and Fig.11b A structural diagram of a driving mechanism of an electric switch device according to an embodiment of the present invention is disclosed in a connected unclamped position.

[0070] Fig.12 A side structural diagram of an electric switch device in a connection clamping position according to an embodiment of the present invention is disclosed.

[0071] Fig.13a and Fig.13b A structural diagram of a driving mechanism of an electric switch device in a connection clamping position according to an embodiment of the present invention is disclosed.

[0072] Fig.14a , Fig.14b , Fig.14c and Fig.14d The matching relationship between the sliding plate and the main shaft in different positions is revealed. DETAILED DESCRIPTION

[0073] The present invention discloses an electric switch device, Figure 1a and Figure 1bThe structural diagram of an electric switch device according to an embodiment of the present invention is disclosed. The electric switch device includes: a drawer device 101, an electric connection device 102, a driving mechanism 103, a locking mechanism 104 and an interlocking mechanism. The circuit breaker body 105 enters or exits the drawer device 101. The electric connection device 102 is installed on the drawer device 101, and the electric connection device 102 has a clamping mechanism. The electric connection device 102 connects the busbar 151 of the circuit breaker body 105 and the external circuit. The driving mechanism 103 is installed on the drawer device 101, and the driving mechanism 103 drives the circuit breaker body 105 to move, so that the busbar 151 of the circuit breaker body enters or leaves the area where the electric connection device 102 is located. The locking mechanism 104 is installed on the drawer device 101, and the locking mechanism 104 drives the clamping mechanism of the electric connection device 102, so that the electric connection device 102 clamps or releases the busbar 151 of the circuit breaker body. The interlocking mechanism is installed on the drawer device, and the interlocking mechanism is Figure 1a and Figure 1b It is not shown in the figure, but will be shown in the subsequent drawings. The interlocking mechanism cooperates with the tripping rod of the circuit breaker body to allow or prevent the circuit breaker body from closing. Compared with the electric switch device in the prior art, the electric switch device of the present invention uses an electric connection device 102 with a different structure. Regarding the specific structure of the electric connection device 102, the applicant of this application has submitted patent applications with publication numbers CN111403939A and CN111403938A, and patents with announcement numbers CN211017487U and CN211045800U. The above patent applications and patents are cited in this application. For the specific structure of the electric connection device 102, please refer to the above patent applications, and this application will not repeat the description. Since the structure and working process of the electric connection device are different from those in the prior art, correspondingly, the driving mechanism, locking mechanism and interlocking mechanism of the electric switch device of the present invention are also changed to adapt to the structural changes of the electric connection device. From an overall perspective, the biggest difference between the electric switch device of the present invention and the electric switch device of the prior art is that the electric switch device of the present invention has four positions: a separation position, a test position, a connection unclamped position, and a connection clamped position. In the electric switch device of the prior art, since the busbar of the circuit breaker body is inserted into the electrical connection device, the busbar is put into place and clamped simultaneously, so there are only three positions: a separation position, a test position, and a connection position. In the prior art, the circuit breaker body enters the connection position, and the busbar is inserted into the electrical connection device and clamped. In the electric switch device of the present invention, the busbar enters the electrical connection device and is clamped separately, so there are two positions in the connected state: a connection unclamped position and a connection clamped position. Although the electric switch device of the present invention has four positions, it still needs to meet the basic principles in the process of connecting the circuit breaker body and the drawer device, that is, to ensure safety by limiting the closing function of the circuit breaker body: the driving mechanism drives the circuit breaker body to move, and the relative positions of the circuit breaker body and the drawer device include:

[0074] Separation position, in which the busbar of the circuit breaker body is separated from the electrical connection device, and the circuit breaker body cannot be closed;

[0075] Test position, in which the busbar of the circuit breaker body is separated from the electrical connection device, and the circuit breaker body can be closed;

[0076] The connection is in the unclamped position. In the unclamped position, the busbar of the circuit breaker body contacts the electrical connection device, the electrical connection device does not clamp the busbar, and the circuit breaker body cannot be closed;

[0077] The connection clamping position is where the busbar of the circuit breaker body contacts the electrical connection device, the electrical connection device clamps the busbar, and the circuit breaker body can be closed.

[0078] Figure 1a and Figure 1b The structure diagram of an electric switch device according to an embodiment of the present invention is disclosed, wherein Figure 1a Reveals the state that the circuit breaker body has not yet entered the drawer device, Figure 1b The state of the circuit breaker body after entering the drawer device is disclosed.

[0079] The structures of the driving mechanism, locking mechanism and interlocking mechanism in the electric switch device of the present invention are respectively introduced below.

[0080] Figure 2a , Figure 2b , Figure 2c and Figure 2d The present invention discloses a structural diagram of a driving mechanism in an electric switch device according to an embodiment of the present invention. Figure 2a The structure of the sliding plate is revealed. Figure 2b The structure of the spindle is revealed. Figure 2c The structure of the pallet is revealed. Figure 2dThe structure of the assembled drive mechanism is disclosed. In one embodiment, the drive mechanism includes: a drive shaft 201, a sliding plate 202, a main shaft 203 and a support plate 204. One end of the drive shaft 201 is connected to a handle (the handle is not shown in the figure), and the handle is turned to drive the drive shaft 201 to rotate. The sliding plate 202 is installed on the drive shaft 201, and the rotation of the drive shaft 201 is converted into the sliding of the sliding plate 202. The sliding plate 202 is driven to move by shaking the handle to drive the drive shaft 210 to rotate, and the sliding plate 202 moves toward the inside or outside of the drawer device 101, driving the circuit breaker body 105 to enter or exit the drawer device 101. The connection method between the drive shaft and the sliding plate is a conventional handle rocker structure, which is commonly used in the art and is not described in detail here. In addition, for the sake of clarity and uniformity of description, the direction is defined as follows in the present invention: the direction in which the drawer device is away from the circuit breaker body is "outside", and the direction in which the drawer device is close to the circuit breaker body is "inside". Moving inwards means moving toward the inside of the drawer device, moving outwards means moving toward the direction of the opening of the drawer device, the inner end means the end close to the inner side, and the outer end means the end close to the outer side. The main shaft 203 is installed on the drawer device 101, and the main shaft 203 can rotate and cooperate with the sliding plate 202. The sliding plate 202 moves to the separation position, the test position, the connection unclamped position and the connection clamped position, and the main shaft 203 rotates to the separation angle, the test angle, the connection unclamped angle and the connection clamped angle accordingly. The support plate 204 is installed on the drawer device 101, and the support plate 204 can rotate. The circuit breaker body 105 is mounted on the support plate 204, and the support plate 204 cooperates with the main shaft 203. The main shaft 203 rotates to the separation angle, test angle, connection unclamping angle and connection clamping angle, and the support plate 204 rotates to the separation angle, test angle, connection unclamping angle and connection clamping angle accordingly, and drives the circuit breaker body 105 to the separation position, test position, connection unclamping position and connection clamping position.

[0081] Combination Figure 2a , Figure 2b and Figure 2dAs shown, the sliding plate 202 is provided with a first driving groove 221, a second driving groove 222, an unlocking groove 223 and an interlocking groove 224. The first cantilever 231 and the second cantilever 232 are installed on the main shaft 203. The first cantilever 231 has a forked first driving rod 233 and an interlocking rod 234, and the second cantilever 232 has a forked second driving rod 235 and an unlocking rod 236. As shown, the first driving groove 221 and the interlocking groove 224 are arranged along a straight line, and the first driving groove 221 and the interlocking groove 224 form a driving coupling with the first driving rod 233 and the interlocking rod 234 on the first cantilever. The first driving rod 233 and the interlocking rod 234 match the interval of the first driving groove 221 and the interlocking groove 224 from the opening angle of the first cantilever 231. When in action, the first driving rod 233 cooperates with the first driving groove 221, and the interlocking rod 234 cooperates with the interlocking groove 224. The second driving groove 222 and the unlocking groove 223 are also arranged in a straight line, and the second driving groove 222 and the unlocking groove 223 form a driving coupling with the second driving rod 235 and the unlocking rod 236 on the second cantilever. The second driving rod 235 and the unlocking rod 236 match the interval between the second driving groove 222 and the unlocking groove 223 from the opening angle of the second cantilever 232. When in action, the second driving rod 235 cooperates with the second driving groove 222, and the unlocking rod 236 cooperates with the unlocking groove 223. In the illustrated embodiment, the sliding plate 202 is also provided with a guide groove 225, which guides when the sliding plate moves, and the sliding plate 202 moves along the guide groove 225.

[0082] Combination Figure 2b , Figure 2c and Figure 2d As shown, transmission gears 237 are installed at both ends of the main shaft 203. The bottom of the support plate 204 is circular and has transmission teeth 241. The transmission teeth 241 mesh with the transmission gears 237. The rotation of the main shaft 203 drives the support plate 204 to rotate. Since the main shaft 203 and the support plate 204 are driven by the gear meshing, the rotation directions of the main shaft 203 and the support plate 204 are opposite. Figure 2c As shown, the inner wall of the support plate 204 extends toward the top to form an interlocking plate 242, the inner end of the top of the support plate forms a driving groove 243, the outer end of the top of the support plate forms a connecting surface 244, and the top of the outer wall of the support plate is a convex angle to form an exit drive portion 245.

[0083] Figure 3 The structure diagram of the locking mechanism in the electric switch device according to one embodiment of the present invention is disclosed. The driving mechanism drives the locking mechanism so that the locking mechanism drives the clamping mechanism of the electric connection device, and the electric connection device clamps or releases the busbar of the circuit breaker body. Figure 3As shown, the locking mechanism includes: a locking gear 301, a locking transmission shaft 302 and a locking rack 303. The locking gear 301 is installed on the drawer device, and the locking gear 301 can rotate. The locking transmission shaft 302 connects the locking gear 301 and the clamping mechanism of the electrical connection device 102. In the illustrated embodiment, the locking transmission shaft 302 is coaxial with the locking gear 301, and the locking transmission shaft 302 and the locking gear 301 rotate synchronously. When the locking gear 301 rotates, the locking transmission shaft 302 rotates with the locking gear 301, and the locking transmission shaft 302 is connected to the clamping mechanism of the electrical connection device, and the locking transmission shaft 302 drives the clamping mechanism to clamp or release the busbar of the circuit breaker body. The structure of the clamping mechanism of the electrical connection device to clamp or release the busbar of the circuit breaker is described in patent applications and patents such as CN111403939A, CN111403938A, CN211017487U, and CN211045800U. The locking rack 303 is formed on the sliding plate 202, and the locking rack 303 extends from the inner end of the sliding plate 202 toward the outside. The sliding plate moves inward, and the locking rack 303 contacts and engages with the locking gear 301, driving the locking gear to rotate in the clamping direction, and driving the clamping mechanism to clamp the busbar of the circuit breaker body through the locking transmission shaft 302. The sliding plate moves outward, driving the locking gear 301 to rotate in the release direction, and driving the clamping mechanism to release the busbar of the circuit breaker body through the locking transmission shaft 302. The sliding plate 202 continues to move outward. Since the position of the locking gear 301 is fixed, after the sliding plate 202 moves outward a sufficient distance, the locking rack 303 is disengaged from the locking gear 301, and the locking gear 301 no longer rotates, and the clamping mechanism of the electrical connection device no longer acts. In one embodiment, the locking rack and the locking gear can also be configured to always be engaged. Correspondingly, the electrical connection device has a sufficiently large clamping stroke to meet the requirement of the electrical connection device idling when the busbar has not been inserted into the electrical connection device in the separation position and the test position. Specifically, after the sliding plate 202 moves outward and into position, the locking rack 303 and the locking gear 301 can still be in a contacting and engaging state. In this embodiment, the clamping stroke of the electrical connection device 102 needs to be large enough. During the movement of the sliding plate in the separation position and the test position, the electrical connection device 102 is idling and clamped, but there is still enough space, so that the busbar 151 of the circuit breaker body is not subjected to the clamping force during the process of entering the electrical connection device 102. The advantage of this embodiment is that the locking rack 303 and the locking gear 301 remain engaged so that the entire system is always in a coupled state, avoiding the re-engagement caused by the assembly gap between the parts. This embodiment has more stable working performance.

[0084] The interlocking mechanism includes: a drawer interlocking member 401 , a drawer push rod 402 and an interlocking plate 242 . Figure 4The structure diagram of the drawer interlocking member of the interlocking mechanism in the electric switch device according to one embodiment of the present invention is disclosed. The drawer interlocking member 401 is installed on the drawer device, and the installation position of the drawer interlocking member 401 is close to the outer side of the drawer device 101. Figure 4 As shown, the outer end and the inner end of the drawer interlocking member 401 form protruding interlocking portions 411 and 412 respectively, and the middle of the drawer interlocking member forms a recessed release portion 413. The drawer push rod 402 can refer to Figure 5 , Figure 5 The overall structural diagram of an electric switch device according to an embodiment of the present invention is disclosed. A drawer push rod 402 is installed on the drawer device, and the drawer push rod 402 is located on the inner side of the drawer interlocking member 401. The middle part of the drawer push rod 402 is rotatably connected to the drawer device via a rotating shaft. The top of the drawer push rod is a horizontal interlocking rod 421, and the bottom of the drawer push rod is an inclined trigger rod 422. The drawer push rod has an interlocking position and a release position. In the interlocking position, the interlocking rod 421 is pressed downward, and in the release position, the interlocking rod 421 is lifted upward. The drawer push rod has a push rod spring (not shown in the figure), and the spring force of the push rod spring causes the drawer push rod to rotate toward the release position. The interlocking plate 242 is formed by extending from the inner side wall of the support plate 204 to the top. The interlocking plate 242 can refer to Figure 2c shown.

[0085] Figure 5 The overall structural diagram of an electric switch device according to an embodiment of the present invention is disclosed. Figure 5 The drawer device and the circuit breaker body are removed to more clearly show the structure of the electrical connection device 102, the drive mechanism, the locking mechanism and the interlocking mechanism. Figure 5 The locking gear and locking transmission shaft in the middle locking mechanism are not shown, but the locking rack located at the inner end of the sliding plate is clearly visible. Figure 5 The assembled drive shaft 201, sliding plate 202, main shaft 203 and support plate 204 can be seen in FIG. Figure 5 In the illustrated embodiment, the driving mechanism further includes a side slide 205, on which there are an entry shaft pin 251 and an exit shaft pin 252, and the circuit breaker body is mounted on the side slide 205. The entry shaft pin 251 and the exit shaft pin 252 of the side slide 205 cooperate with the support plate 204 to drive the circuit breaker body to enter or exit the drawer device. Figure 5 The position of the drawer interlock 401 and the drawer push rod 402 are shown in the figure. The drawer interlock 401 and the drawer push rod 402 cooperate with the trip rod 501 on the circuit breaker body. The trip rod 501 determines whether the circuit breaker body can be closed. When the trip rod 501 is locked, the circuit breaker body cannot be closed. When the trip rod 501 is released, the circuit breaker body can be closed.

[0086] The following describes the states of the circuit breaker body and the drawer device in four relative positions. When the circuit breaker body enters the drawer device, it will pass through the separation position, the test position, the connection unclamped position and the connection clamped position in sequence.

[0087] The first is the separation position. The requirement in the separation position is that the busbar of the circuit breaker body is separated from the electrical connection device, and the circuit breaker body cannot be closed. Figure 6 A side structural diagram of an electrical switch device in a disengaged position according to an embodiment of the present invention is disclosed. Figure 7a and Figure 7b The present invention discloses a structural diagram of a driving mechanism of an electric switch device in a disengaged position according to an embodiment of the present invention. Figure 7a and 7b As shown, in the separation position, the main shaft 203 is at the separation angle, the first driving rod 233 is located in the first driving groove 221, and the second driving rod 235 is located in the second driving groove 222. The unlocking rod 236 and the unlocking groove 223 are separated from each other and do not function, and the interlocking rod 234 and the interlocking groove 224 are also separated from each other and do not function. Figure 6 , Figure 7a and Figure 7b In the separation position, the main shaft 203 is located at the separation angle, and the support plate 204 is also located at the separation angle. The entry shaft pin 251 of the side slide 205 is located in the driving groove 243 of the support plate 204. The circuit breaker body placed on the side slide is in the separation position. In the separation position, the interlocking portion 411 at the outer end of the drawer interlock 401 presses and locks the trip rod 501, so that the circuit breaker body cannot be closed. In the separation position, the locking gear is disengaged from the locking rack, so the locking mechanism will not operate. As described above, when the electrical connection device has a sufficiently large clamping stroke, in some embodiments, the locking rack and the locking gear can also be configured to always be in meshing form.

[0088] Then comes the test position. The requirement in the test position is that the busbar of the circuit breaker body is separated from the electrical connection device, but the circuit breaker body can be closed. The test position is mainly to test the operating function of the electrical switch device for the circuit breaker body, and to test the closing and opening operations. Therefore, the circuit breaker body needs to be able to close and open in the test position. However, the test position is only a test of the operating function of the circuit breaker body. The circuit breaker body has not yet been connected to the main circuit, so the busbar of the circuit breaker body is still separated from the electrical connection device. Figure 8 A side structural diagram of an electric switch device in a test position according to an embodiment of the present invention is disclosed. Figure 9a and Figure 9b The present invention discloses a structural diagram of a driving mechanism of an electric switch device in a test position according to an embodiment of the present invention. Figure 9a and 9bAs shown, in the process of moving from the separation position to the test position, the sliding plate 202 moves toward the inner side of the drawer device along the guide groove 225 under the action of the drive shaft 201, and the outer end of the first drive groove 221 pushes the first drive rod 233, and the outer end of the second drive groove 222 pushes the second drive rod 235. Since the first cantilever 231 and the second cantilever 232 are fixed on the main shaft, the first drive rod and the second drive rod move under the push of the first drive groove and the second drive groove, driving the first cantilever and the second cantilever to move, driving the main shaft 203 to rotate, so that the main shaft 203 rotates from the separation angle to the test angle. In this process, the unlocking rod and the unlocking groove do not work, and the interlocking rod and the interlocking groove do not work. Figure 8 , Figure 9a and Figure 9b , moving from the separation position to the test position, the main shaft 203 rotates from the separation angle to the test angle, and the support plate 204 engaged with the main shaft through the transmission gear 237 is also driven to rotate from the separation angle to the test angle. It should be noted that because the support plate 204 and the main shaft 203 are engaged through gears, the rotation directions of the support plate and the main shaft are opposite. When the main shaft rotates clockwise, the support plate rotates counterclockwise. When the main shaft rotates counterclockwise, the support plate rotates clockwise. The outer end of the driving groove 243 of the support plate pushes the entry shaft pin 251 of the side slide 205. The support plate rotates from the separation angle to the test angle, and the circuit breaker body is driven to move from the separation position to the test position through the side slide 205. In the process of moving from the separation position to the test position, the circuit breaker body moves inward, and the trip rod 501 also moves inward and enters the recessed release portion 413 in the middle of the drawer interlock 401. The release portion 413 is recessed inward, so the tripping rod 501 is released, and the circuit breaker body can be closed, meeting the requirements of the test position. In the test position, the locking gear and the locking rack are still disengaged, so the locking mechanism will not work. As described above, in the case where the electrical connection device has a sufficiently large clamping stroke, in some embodiments, the locking rack and the locking gear can also be configured to always be engaged.

[0089] Next is the connection unclamped position. In the connection unclamped position, the busbar of the circuit breaker body is in contact with the electrical connection device. The electrical connection device does not clamp the busbar, and the circuit breaker body cannot be closed. From the test position to the connection unclamped position, the busbar of the circuit breaker body begins to enter the area of ​​the electrical connection device. However, before the busbar is fully inserted into the electrical connection device and clamped, the main circuit needs to remain disconnected, so the circuit breaker body cannot be closed during this process. Fig.10 A side structural view of an electrical switch device in a connected unclamped position according to an embodiment of the present invention is disclosed. Fig.11a and Fig.11b The present invention discloses a structural diagram of a driving mechanism of an electric switch device according to an embodiment of the present invention in a connected and unclamped position. Fig.11a and 11b As shown, in the process of moving from the test position to the unclamped connection position, the sliding plate 202 continues to move toward the inner side of the drawer device along the guide groove 225 under the action of the drive shaft 201. The outer end of the first drive groove 221 pushes the first drive rod 233 until the first drive rod 233 escapes from the first drive groove 221 (refer to Fig.11b ). The outer end of the second driving groove 222 pushes the second driving rod 235 until the second driving rod 235 escapes from the second driving groove 222 (refer to Fig.11b ). This is when the spindle 203 rotates to the connection unclamping angle. The first drive rod and the second drive rod of the spindle at the connection unclamping angle have been disengaged from the first drive groove and the second drive groove. The interlocking rod 234 has not yet entered the interlocking groove 224. Although the unlocking rod 236 has entered the unlocking groove 223, the unlocking groove 223 is a relatively long groove, so the unlocking rod 236 and the unlocking groove 223 do not interact at this position. Therefore, after reaching the connection unclamping position, the sliding plate and the spindle do not interact with each other temporarily. Combined Fig.10 , Fig.11a and Fig.11b, moving from the test position to the connection unclamped position, the main shaft 203 rotates from the test angle to the connection unclamped angle, and the support plate 204 engaged with the main shaft through the transmission gear 237 is also driven to rotate from the test angle to the connection unclamped angle. In this process, the outer end of the driving groove 243 pushes the entry shaft pin 251 of the side slide 205, and the circuit breaker body is driven to move from the test position to the connection unclamped position through the side slide 205. When the main shaft and the support plate are rotated to the connection unclamped angle, and the side slide and the circuit breaker body also reach the connection unclamped position, the entry shaft pin 251 escapes from the driving groove 243 and stays on the connection surface 244 of the support plate 204. The connection surface 244 is a continuous arc surface, so when the entry shaft pin 251 is located on the connection surface 244, the continued rotation of the support plate 204 will no longer push the connection shaft pin 251, that is, the support plate 204 continues to rotate, and the position of the side slide and the circuit breaker body no longer moves. During the process of moving from the test position to the connection unclamped position, the circuit breaker body moves inward, the tripping rod 501 escapes from the release portion 413 of the drawer interlocking member 401, and is pressed and locked by the interlocking portion 412 at the inner end of the drawer interlocking member again, so that the circuit breaker body cannot be closed. The circuit breaker body continues to move inward, and the interlocking plate 242 on the support plate 204 rotates with the support plate and contacts the triggering rod 422 of the drawer push rod 402. Under the action of the interlocking plate 242, the drawer push rod 402 overcomes the spring force of the push rod spring and rotates from the release position to the interlocking position, and the interlocking rod 421 of the drawer push rod 402 presses downward. After the tripping rod 501 moves inward with the circuit breaker body and separates from the drawer interlocking member 401, the tripping rod 501 continues to be pressed down and locked by the interlocking rod 421 of the drawer push rod 402, and the circuit breaker body still maintains a state where it cannot be closed. In the process of moving from the test position to the connection unclamped position, the locking mechanism has two implementation modes: in the first mode, in the process of moving from the test position to the connection unclamped position, the sliding plate 202 and the circuit breaker body move inward, the busbar of the circuit breaker body gradually enters the electrical connection device 102, the locking rack 303 engages with the locking gear 301, and as the sliding plate moves, the locking rack synchronously drives the locking gear to rotate in the clamping direction, and the clamping mechanism of the electrical connection device 102 begins to gradually clamp the busbar of the circuit breaker body. In the first mode, the locking rack 303 is relatively long and extends a relatively long distance from the inner end of the sliding plate. After the sliding plate passes the test position, the locking rack begins to engage with the locking gear, and the busbar of the circuit breaker body enters the electrical connection device and the electrical connection device clamps the busbar synchronously. In the second mode, the sliding plate and the circuit breaker body move inward from the test position to the connection unclamped position, and the busbar of the circuit breaker body gradually enters the electrical connection device, but the locking rack and the locking gear remain disengaged.In the second mode, the locking rack 303 is shorter and extends a shorter distance from the inner side of the sliding plate. Before the sliding plate reaches the connection unclamped position, the locking rack and the locking gear are always separated, and the busbar of the circuit breaker body enters the electrical connection device and the electrical connection device clamps the busbar separately. As described above, in the case where the electrical connection device has a sufficiently large clamping stroke, in some embodiments, the locking rack and the locking gear can also be configured to always be engaged.

[0090] Finally, there is the connection clamping position. The requirement at the connection clamping position is that the busbar of the circuit breaker body contacts the electrical connection device, the electrical connection device clamps the busbar, and the circuit breaker body can be closed. The connection clamping position is the position of normal use, the busbar of the circuit breaker body is fully in contact with the electrical connection device and is clamped, the circuit breaker body is connected to the main circuit and works normally, so the circuit breaker body must be able to be closed at the connection clamping position. Fig.12 A side structural diagram of an electric switch device in a connection clamping position according to an embodiment of the present invention is disclosed. Fig.13a and Fig.13b The present invention discloses a structural diagram of a driving mechanism of an electric switch device in a connection clamping position according to an embodiment of the present invention. Fig.13a and 13b As shown, from the connection unclamped position to the connection clamped position, the sliding plate 202 continues to move toward the inner side of the drawer device along the guide groove 225 under the action of the drive shaft 201. At this time, the unlocking rod 236 is located in the unlocking groove 223. Since the unlocking groove 223 is a relatively long groove, there is no interaction between the sliding plate 202 and the main shaft 203 before the outer end of the unlocking groove 223 contacts the unlocking rod 236. At this time, the main function of the sliding plate continuing to move inward is to make the locking rack 303 set at the inner end of the sliding plate drive the locking gear to rotate, so that the electrical connection device clamps the busbar of the circuit breaker body. After being locked in place, the sliding plate 202 moves to the connection clamped position. At this time, the outer end of the unlocking groove 223 contacts and pushes the unlocking rod 236 to rotate the main shaft 203 to the connection clamping angle. At the same time, when the main shaft rotates to the connection clamping angle, the interlocking rod 234 enters the interlocking groove 224, but the interlocking rod 234 and the interlocking groove 224 do not interact. The interlocking rod 234 enters the interlocking slot 224 so that when the circuit breaker body is withdrawn, the interlocking rod 234 and the interlocking slot 224 can be used to re-lock the circuit breaker body and prevent it from closing. Fig.12 , Fig.13a and Fig.13bAfter moving from the connection unclamped position to the connection clamped position, the main shaft 203 rotates from the connection unclamped angle to the connection clamped angle, and the support plate 204 engaged with the main shaft through the transmission gear 237 is also driven to rotate from the connection unclamped angle to the connection clamped angle. In this process, the entry shaft pin 251 of the side slide plate 205 slides on the connection surface 244 of the support plate 204, and there is no interaction between the support plate 204 and the entry shaft pin 251, so the positions of the side slide plate and the circuit breaker body do not move. In the process of moving from the connection unclamped position to the connection clamped position, the support plate 204 rotates from the connection unclamped angle to the connection clamped angle. Although it no longer interacts with the side slide plate, the interlocking plate 242 rotates with the support plate 204 and separates from the trigger rod 422 of the drawer push rod 402. At this time, the drawer push rod 402 rotates from the interlocking position to the release position again under the action of the push rod spring, and the interlocking rod 421 of the drawer push rod 402 releases the tripping rod 501, and the circuit breaker body can be closed. For the locking mechanism, no matter which of the above modes is used (long locking rack or short locking rack), the locking rack will mesh with the locking gear during the process of moving from the connection unclamped position to the connection clamped position. In this process, the circuit breaker body does not move, the busbar of the circuit breaker body completely enters the electrical connection device, the sliding plate 202 continues to move inward, the locking rack 303 meshes with the locking gear, driving the locking gear to continue to rotate in the clamping direction, and the clamping mechanism clamps the busbar of the circuit breaker body.

[0091] Fig.14a , Fig.14b , Fig.14c and Fig.14d The matching relationship between the sliding plate and the main shaft in different positions is disclosed. The matching process between the first driving groove 221, the second driving groove 222, the unlocking groove 223 and the interlocking groove 224 on the sliding plate 202 and the first driving rod 233, the interlocking rod 234, the second driving rod 235 and the unlocking rod 236 on the first cantilever 231 and the second cantilever 232 of the main shaft during the advancement of the circuit breaker body is further shown. In the separated position, refer to Fig.14a As shown, the main shaft is at the separation angle, and the first drive rod is located in the first drive groove (due to the angle relationship, the first drive rod and the first drive groove are at Fig.14a The second driving rod 235 is located in the second driving slot 222, the unlocking rod 236 is separated from the unlocking slot 223 and does not function, and the interlocking rod 234 is separated from the interlocking slot 224 and does not function. Move from the separated position to the test position, refer to Fig.14b As shown, the sliding plate 202 moves toward the inner side of the drawer device, Fig.14a , Fig.14b , Fig.14c and Fig.14dThe direction indicated by the arrow in the middle is the moving direction of the sliding plate 202. The outer end of the first driving groove pushes the first driving rod (due to the angle between the first driving rod and the first driving groove) Fig.14b The outer end of the second driving slot 222 pushes the second driving rod 235, so that the main shaft rotates to the test angle, the unlocking rod 236 and the unlocking slot 223 do not work, and the interlocking rod 234 and the interlocking slot 224 do not work. Move from the test position to the connection unclamped position, refer to Fig.14c As shown, the sliding plate 202 continues to move toward the inner side of the drawer device, and the outer end of the first driving groove pushes the first driving rod until the first driving rod escapes from the first driving groove (due to the angle between the first driving rod and the first driving groove). Fig.14c The outer end of the second drive slot 222 pushes the second drive rod 235 until the second drive rod escapes from the second drive slot. This causes the spindle to rotate to the connection unclamping angle. At this time, the unlocking rod 236 enters the unlocking slot 223, but the unlocking slot 223 is a relatively long slot, so the unlocking rod 236 and the unlocking slot 223 do not interact. The interlocking rod 234 has not yet entered the interlocking slot 224, so the interlocking rod 234 and the interlocking slot 224 do not interact. Move from the connection unclamping position to the connection clamping position, refer to Fig.14d As shown, the sliding plate 202 continues to move toward the inner side of the drawer device, and the outer end of the unlocking groove 223 contacts the unlocking rod 236 and pushes the unlocking rod 236 to rotate the main shaft to the connection clamping angle. When the main shaft rotates to the connection clamping angle, the interlocking rod 234 enters the interlocking groove 224, but the interlocking rod 234 and the interlocking groove 224 do not act. The interlocking rod 234 enters the interlocking groove 224 so that the inner end of the interlocking groove 224 can act on the interlocking rod 234 when withdrawing, so that the tripping rod of the circuit breaker body is locked and cannot be closed.

[0092] The process of the circuit breaker body withdrawing from the drawer device is exactly the opposite of the above process, and passes through the connection clamping position, the connection unclamping position, the test position and the separation position in sequence.

[0093] In the connection clamping position, refer to Fig.12 , Fig.13a and Fig.13b. The main shaft 203 is located at the connection clamping angle, the interlocking rod 234 is located in the interlocking groove 224, the unlocking rod 236 is located in the unlocking groove 223, the first drive rod and the first drive groove do not interact, and the second drive rod and the second drive groove do not interact. In the connection clamping position, the main shaft 203 is located at the connection clamping angle, the support plate 204 is also located at the connection clamping angle, the entry axis pin 251 of the side slide 205 is located on the connection surface 244 of the support plate 204, and the exit axis pin 252 of the side slide 205 does not contact the support plate 204. In the connection clamping position, the interlocking plate 242 is separated from the trigger rod 422 of the drawer push rod 402, and the drawer push rod 402 is located in the release position under the action of the push rod spring, the interlocking rod 421 is lifted upward, the tripping rod 501 is released, and the circuit breaker body can be closed.

[0094] Move from the connection clamped position to the connection unclamped position, refer to Fig.10 , Fig.11a and Fig.11b. Under the action of the drive shaft 201, the sliding plate 202 moves along the guide groove 225 toward the outside of the drawer device, and the inner end of the interlocking groove 224 pushes the interlocking rod 234 until the interlocking rod 234 escapes from the interlocking groove 224, so that the main shaft 203 rotates to the connection unclamping angle. Before the main shaft rotates to the connection unclamping angle, the unlocking rod 236 is only located in the unlocking groove 223, but the unlocking rod 236 and the unlocking groove 223 do not interact. The first drive rod and the first drive groove do not interact, and the second drive rod and the second drive groove do not interact. Moving from the connection clamping position to the connection unclamping position, the main shaft 203 rotates from the connection clamping angle to the connection unclamping angle, and the support plate 204 engaged with the main shaft through the transmission gear 237 is also driven to rotate from the connection clamping angle to the connection unclamping angle. The entry shaft pin 251 slides on the connection surface 244 of the support plate 204, and the exit shaft pin 252 has not yet contacted the support plate 204. The support plate 204 and the entry shaft pin 251 and the exit shaft pin 252 do not act, and the side slide plate 205 and the circuit breaker body do not move. From the connection clamping position to the connection unclamping position, although the side slide plate and the circuit breaker body do not move, the interlocking plate 242 rotates with the support plate 204 and contacts the trigger rod 422 of the drawer push rod 402. Under the action of the interlocking plate 242, the drawer push rod 402 overcomes the spring force of the push rod spring and rotates from the release position to the interlocking position. The interlocking rod 421 of the drawer push rod 402 presses down and locks the tripping rod 501, and the circuit breaker body cannot be closed. When moving from the connection clamping position to the connection unclamping position, the side slide plate and the circuit breaker body do not move, the sliding plate moves outward, the locking rack 303 meshes with the locking gear, and the locking rack 303 drives the locking gear to rotate in the loosening direction, so that the clamping mechanism loosens the busbar of the circuit breaker body. In the mode of using a shorter locking rack (corresponding to the second mode mentioned above), when reaching the connection unclamping position, the locking rack is disengaged from the locking gear, and the actions of the electrical connection device loosening the busbar and the busbar of the circuit breaker body exiting the electrical connection device are performed separately. In the mode of using a longer locking rack (corresponding to the first mode mentioned above), when reaching the connection unclamping position, the locking rack is still meshed with the locking gear and has not been disengaged, and the actions of the electrical connection device loosening the busbar and the busbar of the circuit breaker body exiting the electrical connection device are performed synchronously. As described above, when the electrical connection device has a sufficiently large clamping stroke, in some embodiments, the locking rack and the locking gear can also be configured to always mesh. If it is in the form of always meshing, the locking rack and the locking gear will not be disengaged.

[0095] From the connection unclamped position to the test position, reference Figure 8 , Figure 9a and Figure 9b. Under the action of the drive shaft 201, the sliding plate 202 moves along the guide groove 225 toward the outside of the drawer device, and the inner side end of the unlocking groove 223 pushes the unlocking rod 236, so that the main shaft 203 rotates from the connection unclamping angle to the test angle. In this process, the first driving rod 233 enters the first driving groove 221, and the second driving rod 235 enters the second driving groove 222. The inner side end of the unlocking groove 223 continues to push the unlocking rod 236 until the unlocking rod 236 escapes from the unlocking groove 223, and then, the inner side end of the first driving groove 221 continues to push the first driving rod 233, and the inner side end of the second driving groove 222 continues to push the second driving rod 235, so that the main shaft 203 continues to rotate until it rotates to the test angle. From the connection unclamping position to the test position, the main shaft 203 rotates from the connection unclamping angle to the test angle, and the support plate 204 engaged with the main shaft through the transmission gear 237 is also driven to rotate from the connection unclamping angle to the test angle. The withdrawal drive part 245 of the support plate 204 contacts and pushes the withdrawal axis pin 252, so that the side slide plate 205 drives the circuit breaker body to move outward, and at the same time, the entry axis pin 251 enters the driving groove 243 from the connection surface of the support plate. The support plate 204 continues to rotate, and the withdrawal axis pin 252 is separated from the withdrawal drive part 245 of the support plate. Then, the entry axis pin 251 is pushed by the inner side end of the driving groove 243 of the support plate, so that the side slide plate 205 drives the circuit breaker body to continue to move outward to the test position. In another embodiment, the withdrawal drive part 245 can also always push the withdrawal axis pin 252 to the test position, and the entry axis pin 251 does not participate in the withdrawal process. In the process from the unclamped connection position to the test position, the circuit breaker body moves outward, the trip rod 501 is separated from the interlocking rod 421 of the drawer push rod 402, but continues to be pressed down and locked by the interlocking part 413 at the inner side end of the drawer interlocking member 401, and the circuit breaker body cannot be closed. The circuit breaker body moves to the test position, the trip rod 501 enters the recessed release portion 413 in the middle of the drawer interlock 401, the trip rod 501 is released, and the circuit breaker body can be closed. From the connection unclamped position to the test position, the sliding plate and the circuit breaker body move outward, and the busbar of the circuit breaker body gradually withdraws from the electrical connection device. In the mode of using a longer locking rack (corresponding to the first mode mentioned above), the locking rack and the locking gear are still engaged, driving the locking gear to continue to rotate in the loosening direction, the clamping mechanism continues to relax, the sliding plate and the circuit breaker body move outward to the test position, the busbar of the circuit breaker body is separated from the electrical connection device, and the locking rack is disengaged from the locking gear. In the mode of using a shorter locking rack (corresponding to the second mode mentioned above), the locking rack and the locking gear have been disengaged in the connection unclamped position, from the connection unclamped position to the test position, the sliding plate and the circuit breaker body move outward, and the busbar of the circuit breaker body gradually withdraws from the electrical connection device.As described above, when the electrical connection device has a sufficiently large clamping stroke, in some embodiments, the locking rack and the locking gear can also be configured to always be engaged. If they are always engaged, the locking rack and the locking gear do not disengage.

[0096] From the test position to the separation position, refer to Figure 6 , Figure 7a and Figure 7b Under the action of the drive shaft 201, the sliding plate 202 moves along the guide groove 225 toward the outside of the drawer device, the inner side end of the first drive groove 221 pushes the first drive rod 233, and the inner side end of the second drive groove 222 pushes the second drive rod 235, so that the main shaft rotates to the separation angle, the first drive rod 233 remains in the first drive groove 221, and the second drive rod 235 remains in the second drive groove 222, ready for the next entry process. From the test position to the separation position, the main shaft rotates from the test angle to the separation angle, and the support plate 204 engaged with the main shaft through the transmission gear 237 is also driven to rotate from the test angle to the separation angle, and the inner side end of the driving groove 243 pushes the entry shaft pin 251, so that the side slide plate 205 and the circuit breaker body move outward to the separation position. In another embodiment, the exit drive unit 245 can also always push the exit shaft pin 252 to the separation position, and the entry shaft pin 251 does not participate in the exit process. From the test position to the separation position, the circuit breaker body moves outward, the trip rod 501 escapes from the release portion 413 of the drawer interlock 401, and is locked by the interlock portion 411 at the outer end of the drawer interlock, so that the circuit breaker body cannot be closed. From the test position to the separation position, the locking gear is disengaged from the locking rack, and the locking mechanism does not operate. As described above, in the case where the electrical connection device has a sufficiently large clamping stroke, in some embodiments, the locking rack and the locking gear can also be configured to always be engaged. If it is in the form of always being engaged, the locking rack and the locking gear do not disengage.

[0097] The electric switch device of the present invention has an electric connection device of a new structure, and the electric connection device can be configured with a large clamping force to clamp the main body busbar as needed, so that the overall contact resistance of the electrical device is greatly reduced, especially in long-term use, the power consumption is greatly reduced, and the use cost is greatly saved. The higher the rated current of the electrical device, the more significant this advantage is. On the other hand, the reduction of contact resistance reduces the temperature rise of the product and the heat generation of the electrical device. There is no need to consider a large heat dissipation space, which is conducive to reducing the size of the product and improving the reliability of long-term use. The electric switch device of the present invention provides a drawer device, a drive mechanism, a locking mechanism and an interlocking mechanism matched with the electric connection device. Combined with the characteristics of the electric connection device, the electric switch device of the present invention has four working positions: a separation position, a test position, a connection unclamped position and a connection clamped position, ensuring the operability and safety of the electric switch device. On the other hand, the entry of the busbar of the circuit breaker body into the electrical connection device and the electrical contact clamping between the two are divided into two processes: connection unclamped and connection clamped. The operating force of the circuit breaker body movement and the clamping force of the electrical connection device are not affected by each other, which greatly reduces the operating force of the circuit breaker body entering the drawer device during the entire process, and there is no need to compromise between the two forces.

[0098] The above embodiments are provided for persons familiar with the art to implement or use the present invention. Personnel familiar with the art can make various modifications or changes to the above embodiments without departing from the inventive concept of the present invention. Therefore, the protection scope of the present invention is not limited to the above embodiments, but should be the maximum scope of the innovative features mentioned in the claims.

Claims

1. An electric switch device, characterized in that: include: Drawer device, the circuit breaker body enters or exits the drawer device; An electrical connection device, which is mounted on the drawer device and has a clamping mechanism, and which connects the busbar of the circuit breaker body with an external circuit; A driving mechanism, the driving mechanism drives the circuit breaker body to move so that the busbar of the circuit breaker body enters or leaves the area of ​​the electrical connection device; A locking mechanism, which drives a clamping mechanism of the electrical connection device so that the electrical connection device clamps or releases the busbar of the circuit breaker body; Wherein, the driving mechanism drives the circuit breaker body to move, and the relative position of the circuit breaker body and the drawer device includes: Separation position, in which the busbar of the circuit breaker body is separated from the electrical connection device, and the circuit breaker body cannot be closed; Test position, in which the busbar of the circuit breaker body is separated from the electrical connection device, and the circuit breaker body can be closed; The connection is in the unclamped position. In the unclamped position, the busbar of the circuit breaker body contacts the electrical connection device, the electrical connection device does not clamp the busbar, and the circuit breaker body cannot be closed; The connection clamping position, in which the busbar of the circuit breaker body contacts the electrical connection device, the electrical connection device clamps the busbar, and the circuit breaker body can be closed. The driving mechanism is installed on the drawer device, and the driving mechanism includes: A driving shaft, one end of which is connected to a handle, and the driving shaft is rotated by turning the handle; A sliding plate is installed on the driving shaft. The rotation of the driving shaft is converted into the sliding of the sliding plate. The driving shaft drives the sliding plate to move. The sliding plate moves toward the inside or outside of the drawer device, driving the circuit breaker body to enter or exit the drawer device. The main shaft is installed on the drawer device, the main shaft cooperates with the sliding plate, the sliding plate moves to the separation position, the test position, the connection unclamping position and the connection clamping position, and the main shaft rotates to the separation angle, the test angle, the connection unclamping angle and the connection clamping angle accordingly; The pallet is installed on the drawer device, and the pallet drives the circuit breaker body to move. The pallet cooperates with the main shaft, and the main shaft rotates to the separation angle, the test angle, the connection unclamping angle and the connection clamping angle. The pallet drives the circuit breaker body to the separation position, the test position, the connection unclamping position and the connection clamping position; The sliding plate is provided with a first driving slot, a second driving slot, an unlocking slot and an interlocking slot; The main shaft is provided with a first cantilever and a second cantilever, the first cantilever having a forked first driving rod and an interlocking rod, and the second cantilever having a forked second driving rod and an unlocking rod; The first driving groove and the interlocking groove form a driving coupling with the first driving rod and the interlocking rod on the first cantilever, and the second driving groove and the unlocking groove form a driving coupling with the second driving rod and the unlocking rod on the second cantilever; the circuit breaker body enters the drawer device and passes through the separation position, the test position, the connection unclamped position and the connection clamped position in sequence; In the separation position, the main shaft is at the separation angle, the first driving rod is located in the first driving groove, the second driving rod is located in the second driving groove, the unlocking rod and the unlocking groove do not interact, and the interlocking rod and the interlocking groove do not interact; Move from the separation position to the test position, the sliding plate moves toward the inner side of the drawer device, the outer end of the first driving groove pushes the first driving rod, and the outer end of the second driving groove pushes the second driving rod, so that the main shaft rotates to the test angle, the unlocking rod and the unlocking groove do not act, and the interlocking rod and the interlocking groove do not act; Move from the test position to the connection unclamped position, the sliding plate moves toward the inner side of the drawer device, the outer end of the first driving groove pushes the first driving rod until the first driving rod escapes from the first driving groove, and the outer end of the second driving groove pushes the second driving rod until the second driving rod escapes from the second driving groove, so that the main shaft rotates to the connection unclamped angle, the unlocking rod enters the unlocking groove but the unlocking rod and the unlocking groove do not interact, and the interlocking rod and the interlocking groove do not interact; Move from the connection unclamped position to the connection clamped position, the sliding plate moves toward the inner side of the drawer device, the outer end of the unlocking groove pushes the unlocking rod to rotate the main shaft to the connection clamping angle, and the interlocking rod enters the interlocking groove but the interlocking rod and the interlocking groove do not interact.

2. The electrical switch device according to claim 1, characterized in that The circuit breaker body is withdrawn from the drawer device, and passes through the connection clamping position, the connection unclamping position, the test position and the separation position in sequence; In the connection clamping position, the main shaft is located at the connection clamping angle, the interlocking rod is located in the interlocking groove, the unlocking rod is located in the unlocking groove, the first driving rod and the first driving groove do not interact, and the second driving rod and the second driving groove do not interact; Move from the connection clamping position to the connection unclamping position, the sliding plate moves toward the outside of the drawer device, the inner end of the interlocking groove pushes the interlocking rod until the interlocking rod escapes from the interlocking groove, so that the main shaft rotates to the connection unclamping angle, the unlocking rod is located in the unlocking groove but the unlocking rod and the unlocking groove do not interact, the first driving rod and the first driving groove do not interact, and the second driving rod and the second driving groove do not interact; From the connection unclamped position to the test position, the sliding plate moves toward the outside of the drawer device, and the inner end of the unlocking groove pushes the unlocking rod, so that the main shaft rotates from the connection unclamped angle to the test angle, the first driving rod enters the first driving groove, the second driving rod enters the second driving groove, the inner end of the unlocking groove pushes the unlocking rod until the unlocking rod escapes from the unlocking groove, the inner end of the first driving groove continues to push the first driving rod, and the inner end of the second driving groove continues to push the second driving rod, so that the main shaft rotates to the test angle; From the test position to the separation position, the sliding plate moves toward the outside of the drawer device, the inner end of the first drive groove pushes the first drive rod, and the inner end of the second drive groove pushes the second drive rod, so that the main shaft rotates to the separation angle, the first drive rod remains in the first drive groove, and the second drive rod remains in the second drive groove.

3. The electrical switch device according to claim 1, characterized in that: Transmission gears are installed at both ends of the main shaft, and the bottom of the support plate is circular and has transmission teeth, which mesh with the transmission gears. The rotation of the main shaft drives the support plate to rotate; The inner wall of the support plate extends toward the top to form an interlocking plate, the inner end of the top of the support plate forms a driving groove, the outer end of the top of the support plate forms a connecting surface, and the top of the outer wall of the support plate is a convex angle to form an exit drive portion.

4. The electrical switch device according to claim 2, characterized in that It also includes a side slide plate, which has an entry shaft pin and an exit shaft pin. The circuit breaker body is installed on the side slide plate, the entry shaft pin is located on the inner side, and the exit shaft pin is located on the outer side. The circuit breaker body enters the drawer device and passes through the separation position, the test position, the connection unclamped position and the connection clamped position in sequence. In the separation position, the main shaft is located at the separation angle, the support plate is also located at the separation angle, the entry shaft pin of the side slide plate is located in the driving groove, and the circuit breaker body is located at the separation position; Move from the separation position to the test position, the main shaft rotates from the separation angle to the test angle, driving the support plate to rotate from the separation angle to the test angle, and the outer end of the driving groove pushes the entry shaft pin of the side slide plate to drive the circuit breaker body to move from the separation position to the test position; Move from the test position to the connection unclamped position, the main shaft rotates from the test angle to the connection unclamped angle, driving the support plate to rotate from the test angle to the connection unclamped angle, and the outer end of the driving groove pushes the entry shaft pin of the side slide until the entry shaft pin escapes from the driving groove and stays on the connection surface of the support plate, driving the circuit breaker body to move from the test position to the connection unclamped position; Move from the unclamped connection position to the clamped connection position, the main shaft rotates from the unclamped connection angle to the clamped connection angle, driving the support plate to rotate from the unclamped connection angle to the clamped connection angle, the entry shaft pin slides on the connection surface of the support plate, the support plate and the entry shaft pin do not interact, and the circuit breaker body does not move.

5. The electrical switch device according to claim 4, characterized in that The circuit breaker body is withdrawn from the drawer device, and passes through the connection clamping position, the connection unclamping position, the test position and the separation position in sequence; In the connection clamping position, the spindle is located at the connection clamping angle, the support plate is located at the connection clamping angle, the entry shaft pin of the side slide is located on the connection surface of the support plate, and the exit shaft pin of the side slide does not contact the support plate; Move from the connection clamping position to the connection unclamping position, the main shaft rotates from the connection clamping angle to the connection unclamping angle, driving the support plate to rotate from the connection clamping angle to the connection unclamping angle, the entry shaft pin slides on the connection surface of the support plate, the support plate and the entry shaft pin and the exit shaft pin are not in action, and the circuit breaker body does not move; From the connection unclamped position to the test position, the main shaft rotates from the connection unclamped angle to the test angle, driving the support plate to rotate from the connection unclamped angle to the test angle, the exit drive portion of the support plate pushes the exit shaft pin, so that the circuit breaker body moves outward, and the entry shaft pin enters the drive groove from the connection surface of the support plate, the exit shaft pin is separated from the support plate, and the inner side end of the drive groove pushes the entry shaft pin, so that the circuit breaker body continues to move outward to the test position; From the test position to the separation position, the main shaft rotates from the test angle to the separation angle, driving the support plate to rotate from the test angle to the separation angle, and the inner end of the driving groove pushes the shaft pin into place, so that the circuit breaker body moves outward to the separation position.

6. The electrical switch device according to claim 1, characterized in that It also includes an interlocking mechanism, which cooperates with the tripping rod of the circuit breaker body to allow or prevent the circuit breaker body from closing. The interlocking mechanism is installed on the drawer device, and the interlocking mechanism includes: A drawer interlocking member, the drawer interlocking member is installed on the drawer device, the drawer interlocking member is close to the outer side of the drawer device, the outer side end and the inner side end of the drawer interlocking member form a protruding interlocking portion, and the middle of the drawer interlocking member forms a recessed release portion; A drawer push rod, the drawer push rod is installed on the drawer device, the drawer push rod is located on the inner side of the drawer interlocking member, the middle part of the drawer push rod is rotatably connected to the drawer device through a rotating shaft, the top of the drawer push rod is a horizontal interlocking rod, the bottom of the drawer push rod is an inclined trigger rod, the drawer push rod has an interlocking position and a release position, the interlocking rod is pressed downward in the interlocking position, and the interlocking rod is lifted upward in the release position, the drawer push rod has a push rod spring, the spring force of the push rod spring causes the drawer push rod to rotate toward the release position; The interlocking plate is formed by extending the inner side wall of the supporting plate toward the top.

7. The electrical switch device according to claim 6, characterized in that The circuit breaker body is provided with a tripping rod. When the tripping rod is locked, the circuit breaker body cannot be closed. When the tripping rod is released, the circuit breaker body can be closed. The circuit breaker body enters the drawer device and passes through the separation position, the test position, the connection unclamped position and the connection clamped position in sequence. In the separated position, the interlocking part at the outer end of the drawer interlock locks the tripping rod, and the circuit breaker body cannot be closed; Move from the separation position to the test position, the circuit breaker body moves inward, the trip rod enters the recessed release portion in the middle of the drawer interlock, the trip rod is released, and the circuit breaker body can be closed; Move from the test position to the connection unclamped position, the circuit breaker body moves inward, the trip rod escapes from the release portion of the drawer interlocking piece, and is locked by the interlocking portion at the inner end of the drawer interlocking piece, the circuit breaker body cannot be closed, the circuit breaker body continues to move inward, the interlocking plate rotates with the support plate and contacts the triggering rod of the drawer push rod, the drawer push rod rotates from the release position to the interlocking position, the trip rod is separated from the drawer interlocking piece but the trip rod continues to be locked by the interlocking rod of the drawer push rod, the circuit breaker body cannot be closed; Move from the connection unclamped position to the connection clamped position, the circuit breaker body does not move, the interlocking plate rotates with the support plate and separates from the trigger rod of the drawer push rod, the drawer push rod rotates from the interlocking position to the release position under the action of the push rod spring, the interlocking rod of the drawer push rod releases the trip rod, and the circuit breaker body can be closed.

8. The electrical switch device according to claim 7, characterized in that The circuit breaker body is withdrawn from the drawer device, and passes through the connection clamping position, the connection unclamping position, the test position and the separation position in sequence; In the connection clamping position, the drawer push rod is in the release position under the action of the push rod spring, the trip rod is released, and the circuit breaker body can be closed; Move from the connection clamping position to the connection unclamping position, the circuit breaker body does not move, the interlocking plate rotates with the support plate and contacts the trigger rod of the drawer push rod, the drawer push rod rotates from the release position to the interlocking position under the action of the interlocking plate, the interlocking rod of the drawer push rod locks the tripping rod, and the circuit breaker body cannot be closed; From the connection unclamped position to the test position, the circuit breaker body moves outward, the tripping rod is separated from the interlocking rod of the drawer push rod but continues to be locked by the interlocking part at the inner end of the drawer interlocking part, and the circuit breaker body cannot be closed. The circuit breaker body moves to the test position, the tripping rod enters the recessed release part in the middle of the drawer interlocking part, the tripping rod is released, and the circuit breaker body can be closed; From the test position to the separation position, the circuit breaker body moves outward, the trip rod escapes from the release portion of the drawer interlock, and is locked by the interlock portion at the outer end of the drawer interlock, so that the circuit breaker body cannot be closed.

9. The electrical switch device according to claim 1, characterized in that The driving mechanism drives the locking mechanism so that the locking mechanism drives the clamping mechanism of the electrical connection device, and the electrical connection device clamps or releases the busbar of the circuit breaker body. The locking mechanism is installed on the drawer device, and the locking mechanism includes: A locking gear, which is mounted on the drawer device and can rotate; A locking transmission shaft, the locking transmission shaft is connected to the locking gear and the clamping mechanism of the electrical connection device, the locking gear rotates, and the clamping mechanism is driven by the locking transmission shaft to clamp or release the busbar of the circuit breaker body; A locking rack, the locking rack is formed on the sliding plate, and the locking rack extends from the inner end of the sliding plate toward the outer side; The sliding plate moves inward, the locking rack contacts and engages with the locking gear, driving the locking gear to rotate in the clamping direction, and the clamping mechanism clamps the busbar of the circuit breaker body; The sliding plate moves outward, driving the locking gear to rotate in the loosening direction, the clamping mechanism loosens the busbar of the circuit breaker body, the sliding plate continues to move outward, and the locking rack is disengaged from the locking gear.

10. The electrical switch device according to claim 9, characterized in that The circuit breaker body enters the drawer device and passes through the separation position, test position, connection unclamped position and connection clamped position in sequence; In the separation position and the test position, the locking gear is disengaged from the locking rack; Move from the test position to the connection unclamped position, the sliding plate and the circuit breaker body move inward, the busbar of the circuit breaker body gradually enters the electrical connection device, the locking rack contacts and engages with the locking gear, driving the locking gear to rotate in the clamping direction, and the clamping mechanism gradually clamps; When moving from the connection unclamped position to the connection clamped position, the circuit breaker body does not move, the busbar of the circuit breaker body completely enters the electrical connection device, the sliding plate continues to move inward, the locking rack engages with the locking gear, driving the locking gear to continue to rotate in the clamping direction, and the clamping mechanism clamps the busbar of the circuit breaker body.

11. An electrical switching device as claimed in claim 10, characterized in that The circuit breaker body is withdrawn from the drawer device, and passes through the connection clamping position, the connection unclamping position, the test position and the separation position in sequence; Move from the connection clamping position to the connection unclamping position, the circuit breaker body does not move, the sliding plate moves outward, the locking rack engages with the locking gear, driving the locking gear to rotate in the loosening direction, and the clamping mechanism loosens the busbar of the circuit breaker body; From the connection unclamped position to the test position, the sliding plate and the circuit breaker body move outward, the busbar of the circuit breaker body gradually withdraws from the electrical connection device, the locking rack engages with the locking gear, driving the locking gear to continue to rotate in the loosening direction, the clamping mechanism continues to loosen, the sliding plate and the circuit breaker body move outward to the test position, the busbar of the circuit breaker body is separated from the electrical connection device, and the locking rack is disengaged from the locking gear; From the test position to the separation position, the locking gear is disengaged from the locking rack.

12. The electrical switch device according to claim 9, characterized in that The circuit breaker body enters the drawer device and passes through the separation position, test position, connection unclamped position and connection clamped position in sequence; In the separation position and the test position, the locking gear is disengaged from the locking rack; Move from the test position to the connection unclamped position, the sliding plate and the circuit breaker body move inward, the busbar of the circuit breaker body gradually enters the electrical connection device, and the locking rack is disengaged from the locking gear; When moving from the connection unclamped position to the connection clamped position, the circuit breaker body does not move, the busbar of the circuit breaker body completely enters the electrical connection device, the sliding plate continues to move inward, the locking rack contacts and engages with the locking gear, driving the locking gear to rotate in the clamping direction, and the clamping mechanism clamps the busbar of the circuit breaker body.

13. An electrical switching device as claimed in claim 12, characterized in that The circuit breaker body is withdrawn from the drawer device, and passes through the connection clamping position, the connection unclamping position, the test position and the separation position in sequence; Move from the connection clamping position to the connection unclamping position, the circuit breaker body does not move, the sliding plate moves outward, the locking rack engages with the locking gear, driving the locking gear to rotate in the loosening direction, the clamping mechanism releases the busbar of the circuit breaker body, the sliding plate moves outward to the connection unclamping position, and the locking rack disengages from the locking gear; From the connection unclamped position to the test position, the sliding plate and the circuit breaker body move outward, the busbar of the circuit breaker body gradually withdraws from the electrical connection device, and the locking rack is disengaged from the locking gear; From the test position to the separation position, the locking gear is disengaged from the locking rack.

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