CN209608566U - A kind of CT machine brake - Google Patents

A kind of CT machine brake Download PDF

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Publication number
CN209608566U
CN209608566U CN201920326359.6U CN201920326359U CN209608566U CN 209608566 U CN209608566 U CN 209608566U CN 201920326359 U CN201920326359 U CN 201920326359U CN 209608566 U CN209608566 U CN 209608566U
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connecting terminal
relay
pin
resistance
pins
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刘超
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Shanghai Liangzhi Electrical Appliance Technology Co ltd
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Shanghai Liangzhi Electrical Appliance Technology Co ltd
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Abstract

The utility model discloses a kind of CT machine brakes, are related to CT machine technical field, including control module, brake module, link block and brake resistor;Link block includes connecting terminal X4, connecting terminal X5;The external rotating electric machine of connecting terminal X4 external SCR, connecting terminal X5;Three three-phase electricities that three three-phase electricity output pins of connecting terminal X4 are separately connected connecting terminal X5 receive pin, provide three-phase alternating current to rotating electric machine by connecting terminal X4 and connecting terminal X5, SCR and work for rotating electric machine;Control module is separately connected three three-phase electricity output pins of connecting terminal X4;Brake module link control module, and brake module connects brake resistor;After the shutdown of CT machine, start brake function, convert resistance thermal energy consumption for the kinetic energy of the CT change of rotating electric machine, to reach braking effect, CT change is allowed quickly to stop operating, avoids generating reflected current damage X bulb.

Description

A kind of CT machine brake
Technical field
The utility model relates to CT machine technical field, specially a kind of CT machine brake.
Background technique
128 row's X-ray tomographic scanner (CT machine) of fine definition is when the CT change of rotating electric machine stops operating, since CT turns The inertial rotation of ring, can accidental generation reflected current, make X-ray bulb job insecurity or damage, cause harm to patient and The heavy losses of pipe ball damage.Need CT machine when reflected current occurs by machine emergency decelerating (brake), to ensure machine just Often operating, this time should control within 12S.
Utility model content
The purpose of this utility model is to provide a kind of CT machine brakes, to solve mentioned above in the background art ask Topic.
To achieve the above object, the utility model provides the following technical solutions: a kind of CT machine brake,
Including control module, brake module, link block and brake resistor;
The link block includes connecting terminal X4, connecting terminal X5;The external SCR of connecting terminal X4, the wiring The external rotating electric machine of terminal X5;Three three-phase electricity output pins of the connecting terminal X4 are separately connected the connecting terminal X5's Three three-phase electricities receive pin, and by the connecting terminal X4 and the connecting terminal X5, SCR provides three-phase to rotating electric machine Alternating current works for rotating electric machine;
The control module includes three switch elements;One end of three switch elements is separately connected connecting terminal X4 Three three-phase electricity output pins.The brake module includes three-phase rectification bridge D9;Three exchanges of the three-phase rectification bridge D9 Input pin is separately connected the other end of three switch elements in the control module;Two of the three-phase rectification bridge are straight It flows output pin and connects the brake resistor.
Further, three switch elements are relay K1, relay K2 and relay K3 respectively, and the control module is also Including connecting terminal X1, connecting terminal X2 and relay K4;The relay K4 is normally opened relay, and is had there are four pin, It is A1 pin, A2 pin, 11 pins and 14 pins respectively;The relay K1, relay K2 and relay K3 are normally closed relay Device, it may have four pins are A1 pin, A2 pin, 11 pins and 14 pins respectively;
The A1 pin and A2 pin of the relay K4 is separately connected two output ends of the connecting terminal X1, and described The external aCTiMAS of connecting terminal X1;
The external PDS of connecting terminal X2, and an output end of the connecting terminal X2 connects the relay K4's 11 pins, the another output ground connection of the connecting terminal X2;
The relay K1, relay K2, relay K3 A1 pin be all connected with 14 pins of the relay K1;Institute State the A2 pin ground connection of relay K1, relay K2, relay K3;And the 11 of the relay K1, relay K2, relay K3 Pin is separately connected three three-phase electricity output pins of the connecting terminal X4, the relay K1, relay K2, relay K3 14 pins be separately connected the brake module.
Further, the control module further includes diode D2 and diode D8;The diode D2 plus earth, Cathode connects 14 pins of the relay K4;The anode of the diode D8 connects the A2 pin of the relay K4, cathode Connect the A1 pin of the relay K4.
Further, the brake module further includes connecting terminal X6, the DC output end of the three-phase rectification bridge D9 and It is attached between the brake resistor by the connecting terminal X6, the connection between brake resistor and the connecting terminal X6 It is dismountable.
Further, the link block further includes filter circuit, resistance R1, resistance R2 and resistance R3;The filtered electrical Road includes resistance R4, capacitor C1 and capacitor C11;
The resistance R1, resistance R2, resistance R3 one end be separately connected three three-phase electricity outputs of the connecting terminal X4 End, the resistance R1, resistance R2, resistance R3 the other end be all connected with one end of the resistance R4, the other end of the resistance R4 Connect PE;The resistance R4, capacitor C1 and capacitor C11 are parallel with one another.
It further, further include feedback module;The feedback module includes resistance R5, optocoupler U1, switching circuit and wiring Terminal X3;
The cathode of photophore connects one end that the resistance R1 is not connect with the connecting terminal X4, institute in the optocoupler U1 The anode for stating photophore in optocoupler U1 connects one end of the resistance R5, and the other end of resistance R5 connects its of three-phase rectification bridge D9 In an exchange input pin;
The anode access high level of light-receiving device in the optocoupler U1, and one end of the resistance R9 is connected, the resistance R9 The other end, the connecting terminal X3 A1 pin and B3 pin merge, and connect the switching circuit;The wiring The external brake resistor of terminal X3;The cathode of light-receiving device connects the switching circuit in the optocoupler U1, and the switching circuit is also Ground connection;The B1 pin of the connecting terminal X3 is grounded, and A3 pin accesses high level.
Further, the switching circuit includes resistance R7, resistance R8, capacitor C3 and metal-oxide-semiconductor M1;The one of the resistance R7 End connects the cathode of light-receiving device in the optocoupler U1, and the other end of the resistance R7 connects the grid of the metal-oxide-semiconductor M1;The electricity One end of resistance R8 connects the grid of the metal-oxide-semiconductor M1, and the other end of the resistance R8 is grounded and connects the metal-oxide-semiconductor M1,;It is described Capacitor C3 is parallel to the resistance R8;The drain electrode of the metal-oxide-semiconductor M1 connects the A1 pin of the resistance R9, the connecting terminal X3 With B3 pin;The feedback interface of the external SCR of connecting terminal X3.
Further, the feedback module further includes diode D3;The anode of the diode D3 connects the optocoupler U1 The cathode of interior photophore, the cathode of the diode D3 connect the anode of photophore in the optocoupler U1.
Further, the grounding pin of the connecting terminal X4 connects PE, and the grounding pin of the connecting terminal X5 is vacant. Compared with prior art, the utility model has the beneficial effects that starting brake function, by rotating electric machine after the shutdown of CT machine The kinetic energy of CT change is converted into resistance thermal energy consumption, to reach braking effect, CT change is allowed quickly to stop operating, avoids generating Reflected current damages X bulb.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model CT machine brake;
Fig. 2 is the structural schematic diagram of the utility model CT machine brake control module;
Fig. 3 is the structural schematic diagram of the utility model CT machine brake brake module;
Fig. 4 is the structural schematic diagram of the utility model CT machine brake feedback module.
In appended drawing reference: link block 1;Filter circuit 11;Control module 2;Brake module 3;Feedback module 4;Switch electricity Road 41.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work Every other embodiment obtained, fall within the protection scope of the utility model.
A kind of CT machine brake, as shown in Figure 1, including control module 2, brake module 3, feedback module 4, link block 1 And brake resistor.
Link block 1 includes connecting terminal X4, connecting terminal X5, filter circuit 11, resistance R1, resistance R2 and resistance R3. Connecting terminal X4 is used for external SCR (Servo Controller Rotation, rotating electric machine servo controller), connecting terminal X5 is used for external rotating electric machine.Connecting terminal X4 and connecting terminal X5 has there are four pin, wherein draws the 1 of connecting terminal X4 Foot, 2 pins, 3 pins are the three-phase electricity output pins of connecting terminal X4, and 4 pins of connecting terminal X4 are connecing for connecting terminal X4 Ground pin;1 pin, 2 pins, 3 pins of connecting terminal X5 are that the three-phase electricity of connecting terminal X5 receives pin, connecting terminal X5's 4 pins are the grounding pins of connecting terminal X5.1 pin of the 1 pin connection connecting terminal X5 of connecting terminal X4, connecting terminal X4 2 pins connection 2 pins of connecting terminal X5, connecting terminal X4 3 pins connection connecting terminal X5 3 pins, by three-phase electricity It is sent by SCR to rotating electric machine, SCR is made to power rotating electric machine.4 pins of connecting terminal X4 connect PE (Protecting Earthing, protecting field), 4 pins of connecting terminal X5 are vacant, prevent rotating electric machine from issuing interference signal to PE.Connecting terminal One end of the 3 pins connection resistance R1 of X4, one end of the 2 pins connection resistance R2 of connecting terminal X4,1 pin of connecting terminal X4 Connect one end of resistance R3.Filter circuit 11 includes resistance R4, capacitor C1 and capacitor C11, resistance R1, resistance R2, resistance R3 The other end is all connected with one end of resistance R4, and the other end of resistance R4 connects PE.Resistance R4, capacitor C1 and capacitor C11 are mutually simultaneously Connection.Rotating electric machine is progress motor, and filter circuit 11 is for filtering out the impulse wave generated in the rotating electric machine course of work.Control mould Three input terminals of block 2 are separately connected 1 pin, 2 pins and 3 pins of connecting terminal X4.Three output ends of control module 2 It is separately connected three input terminals of brake module 3.One end of feedback module 4 connects brake module 3, and the other end connects resistance R1 not The one end being connect with connecting terminal X4.
As shown in Fig. 2, control module 2 includes connecting terminal X1, connecting terminal X2, relay K4, relay K1, relay K2, relay K3, diode D8 and diode D2.Relay K4 tool is A1 pin respectively, A2 pin, 11 draws there are four pin Foot and 14 pins, it is normally opened between 11 pins and 14 pins, when electric current flows through A1 pin and A2 pin, 11 pins and 14 pins it Between be closed conducting.Relay K1, relay K2 and relay K3 also have there are four pin, are A1 pin respectively, A2 pin, 11 draw Foot and 14 pins, it is normally closed between 11 pins and 14 pins, when electric current flows through pin A1 and pin A2,11 pins and 14 pins it Between turn off.For external aCTiMAS, (MAS as used in aCTivate platform is used for the market M3 to connecting terminal X1 The Mobile Agent Server of CT scheme platform), aCTiMAS is a kind of currently used Mobile Agent Server, can measure CT The revolving speed of rotating electric machine in machine, and when CT machine works normally, aCTiMAS exports the direct current of 24V, the electric rotating in CT machine When machine speed is slow, aCTiMAS stops the direct current of output 24V.Connecting terminal X1 have 3 pins, the 1 of middle connecting terminal X1 Pin connects the A1 pin of relay K4, and the pin 2 of connecting terminal X1 is vacant, and the pin 3 of connecting terminal X1 connects relay K4 A2 pin.The anode connection of diode D8 is after the A2 pin of relay K4, and cathode connects the A1 pin of relay K4, for protecting Relay K4 is protected, prevents transient high-current from flowing through relay K4, extends the service life of relay K4.Connecting terminal X2 is for outer It connects PDS (Power Distribution System, distribution system), and is supplied to relay K1, relay K2 and relay K3 Electricity.Connecting terminal X2 tool is there are two pin, wherein 2 pins of connecting terminal X2 are grounded, the 1 pin connection of connecting terminal X2 after 11 pins of electric appliance K4.The A1 pin of relay K1, relay K2 and relay K3 are all connected with 14 pins of relay K4;Relay The A2 pin of device K1, relay K2 and relay K3 are grounded.Diode D2 anode connection relay K1, relay K2 and after The A2 pin of electric appliance K3, the cathode of diode D2 connects the A1 pin of relay K1, relay K2 and relay K3, to relay K1, relay K2 and relay K3 play a protective role, and prevent the moment electricity for flowing through relay K1, relay K2 and relay K3 It flows through big.11 pins of relay K1, relay K2 and relay K3 are three input terminals of control module 2 respectively, with connection Module 1 is connected;14 pins of relay K1, relay K2 and relay K3 are three output ends of control module 2 respectively, with brake Three input terminals of vehicle module 3 are connected.
As shown in figure 3, brake module 3 includes three-phase rectification bridge D9 and connecting terminal X6.Type can be selected in three-phase rectification bridge D9 Number three-phase rectification bridge for being 3SRB3516 is 1 pin, 2 pins, 3 pins, 4 pins and 5 pins respectively altogether there are five pin, Wherein, 2 pins, 3 pins and 4 pins are exchange input pins, and 1 pin and 5 pins are direct current output pins.Three-phase rectification bridge D9 Direct current is converted by the three-phase alternating current that 2 pins, 3 pins and 4 pins flow into, and in 1 pin output HIGH voltage, is drawn 5 Foot exports low-voltage.2 pins, 3 pins and 4 pins of three-phase rectification bridge D9 are three input terminals of brake module 3 respectively, with control Three output ends of molding block 2.Connecting terminal X6 can connect the brake of different resistance values for connecting brake resistor as needed Resistance.There are six pin, respectively A1 pin, A2 pin, A3 pin, B1 pin, B2 pin and B3 draws connecting terminal X6 tool Foot.Wherein, 1 pin of the A1 pin connection three-phase rectification bridge D9 of connecting terminal X6, the B3 pin of connecting terminal X6 connect three-phase 5 pins of rectifier bridge D9, the A2 pin of connecting terminal X6, A3 pin, B1 pin and B2 pin are vacant.The A1 of connecting terminal X6 Pin and B3 pin are located on diagonal line, and distance farther out, improves the resistance to height between the A1 pin of connecting terminal X6 and B3 pin Pressure energy power.
When the rotating electric machine of CT machine works normally, aCTiMAS exports 24V's to relay K4 by connecting terminal X1 Direct current makes 11 pins and the conducting of 14 pins of relay K4, the A1 pin and A2 of relay K1, relay K2 and relay K3 Be powered between pin, 11 pins of relay K1, relay K2 and relay K3 and the shutdown of 14 pins, link block 1 not with brake Vehicle module 3 is connected to, and brake module 3 will not influence the normal work of CT machine.
When the rotating electric machine of CT machine reduces speed now, aCTiMAS stops exporting by connecting terminal X1 to relay K4 The direct current of 24V makes to turn off between 11 pins of relay K4 and 14 pins, relay K1, relay K2 and relay K3's It is powered off between A1 pin and A2 pin, 11 pins and the conducting of 14 pins of relay K1, relay K2 and relay K3 connect mould Block 1 is connected to brake module 3, and the three-phase reflected current that rotating electric machine generates is sent to three-phase rectification bridge D9 by connecting terminal X5, And direct current is converted by three-phase rectification bridge D9, direct current flows through brake resistor by connecting terminal X6, generates a large amount of thermal energy.By The gyration of rotating electric machine can be converted into thermal energy by brake resistor in by CT machine, so that rotating electric machine quickly stops operating, together When avoid rotating electric machine generation reflected current damage CT machine in X bulb.
As shown in figure 4, feedback module 4 includes diode D3, resistance R5, optocoupler U1, resistance R9, switching circuit 41 and wiring Terminal X3.Optocoupler U1 includes photophore and light-receiving device, and when photophore no power, light-receiving device resistance value is larger, is equivalent to circuit breaker; After photophore electrified light emitting, light-receiving device, which receives the light that photophore issues, reduces light-receiving device resistance value, circuit conducting.Optocoupler U1 can be with Selecting signal is the optocoupler of PC817-B.The one end resistance R5 connects 1 pin of three-phase rectification bridge D9 in brake module 3.The other end connects Connect the anode of photophore in optocoupler U1, in optocoupler U1 photophore cathode connection link block 1 in resistance R1 not with connection terminal One end of X4 connection, resistance R5 play the role of current limliting.The cathode of photophore in the anode connection optocoupler U1 of diode D3, two The anode of photophore, prevents the transient current for flowing through the photophore of optocoupler U1 excessive in the cathode connection optocoupler U1 of pole pipe D3.It opens Powered-down road 41 includes resistance R7, resistance R8, capacitor C3 and metal-oxide-semiconductor M1.The one end resistance R9 connect optocoupler U1 in light-receiving device just Pole, and 24V direct current is accessed, the drain electrode of the other end connection metal-oxide-semiconductor M1 of resistance R9, the source electrode ground connection of metal-oxide-semiconductor M1.Resistance R7 One end connects the cathode of light-receiving device in optocoupler U1, the grid of the other end connection metal-oxide-semiconductor M1 of resistance R7.The connection of the one end resistance R8 The grid of metal-oxide-semiconductor M1, the other end ground connection of resistance R8.Capacitor C3 is parallel to resistance R8, plays the role of filtering out AC compounent. There are six pins for connecting terminal X3 tool, are A1 pin, A2 pin, A3 pin, A4 pin, A5 pin and A6 pin respectively.Metal-oxide-semiconductor The A1 pin and B3 pin of the drain electrode connection connecting terminal X3 of M1, the B1 pin ground connection of connecting terminal X3, A3 pin access 24V's DC voltage, the A2 pin and B2 pin of connecting terminal X3 is vacant, and connecting terminal X3 is used for the feedback interface of external SCR.
When CT machine works normally, when CT machine brake does not work, link block 1 is not connected to brake module 3.Electric current Without flow through the photophore of optocoupler U1, the light-receiving device of optocoupler U1 is at high resistant state of value, and electric current is without flow through resistance R8, the grid of metal-oxide-semiconductor M1 Pole is in low-voltage, and the drain electrode of metal-oxide-semiconductor M1 and source electrode are not turned at this time, and the drain electrode of metal-oxide-semiconductor M1 is high voltage, the feedback interface of SCR The high voltage signal of MOS pipe M1 is received by connecting terminal X7.After the rotating electric machine of CT machine slows down, CT machine brake starts When work, link block 1 is connected to brake module 3, and 1 pin of three-phase rectification bridge D9 is high voltage, and electric current flows through the hair of optocoupler U1 Light device, the light-receiving device of optocoupler U1 are in low-resistance state of value, and the grid voltage of current flowing resistance R7 and R8, MOS pipe M1 increase, makes The drain and gate of metal-oxide-semiconductor M1 is connected, and the drain electrode of metal-oxide-semiconductor M1 is low-voltage, and the feedback interface of SCR is received by connecting terminal X7 The low voltage signal of metal-oxide-semiconductor M1.What is received by the feedback interface of SCR is low voltage signal or high voltage signal Judge whether CT machine brake starts to work.
While there has been shown and described that the embodiments of the present invention, for the ordinary skill in the art, It is understood that these embodiments can be carried out with a variety of variations in the case where not departing from the principles of the present invention and spirit, repaired Change, replacement and variant, the scope of the utility model is defined by the appended claims and the equivalents thereof.

Claims (9)

1. a kind of CT machine brake, which is characterized in that including control module, brake module, link block and brake resistor;
The link block includes connecting terminal X4, connecting terminal X5;The external SCR of connecting terminal X4, the connecting terminal The external rotating electric machine of X5;Three three-phase electricity output pins of the connecting terminal X4 are separately connected three of the connecting terminal X5 Three-phase electricity receives pin, and by the connecting terminal X4 and the connecting terminal X5, SCR provides three-phase alternating current to rotating electric machine It works for rotating electric machine;
The control module includes three switch elements;One end of three switch elements is separately connected the three of connecting terminal X4 A three-phase electricity output pin;The brake module includes three-phase rectification bridge D9;Three exchanges of the three-phase rectification bridge D9 input Pin is separately connected the other end of three switch elements in the control module;Two direct currents of the three-phase rectification bridge are defeated Pin connects the brake resistor out.
2. a kind of CT machine brake according to claim 1, which is characterized in that three switch elements are relay respectively K1, relay K2 and relay K3, the control module further include connecting terminal X1, connecting terminal X2 and relay K4;It is described Relay K4 is normally opened relay, and there are four pins for tool, are A1 pin, A2 pin, 11 pins and 14 pins respectively;It is described after Electric appliance K1, relay K2 and relay K3 are normally closed relay, it may have four pins are A1 pin respectively, A2 pin, 11 draw Foot and 14 pins;
The A1 pin and A2 pin of the relay K4 is separately connected two output ends of the connecting terminal X1, and the wiring The external aCTiMAS of terminal X1;
The external PDS of connecting terminal X2, and a pin of the connecting terminal X2 connects 11 pins of the relay K4, Another pin of the connecting terminal is grounded;
The relay K1, relay K2, relay K3 A1 pin be all connected with 14 pins of the relay K1;The relay The A2 pin ground connection of device K1, relay K2, relay K3;And 11 pins of the relay K1, relay K2, relay K3 point Do not connect three three-phase electricity output pins of the connecting terminal X4, the relay K1, relay K2, relay K3 14 draw Foot is separately connected the brake module.
3. a kind of CT machine brake according to claim 2, which is characterized in that the control module further includes diode D2 With diode D8;The diode D2 plus earth, cathode connect 14 pins of the relay K4;The diode D8 is just Pole connects the A2 pin of the relay K4, and cathode connects the A1 pin of the relay K4.
4. a kind of CT machine brake according to claim 1, which is characterized in that the brake module further includes connecting terminal It is attached between the DC output end and the brake resistor of X6, the three-phase rectification bridge D9 by the connecting terminal X6, Connection between brake resistor and the connecting terminal X6 is dismountable.
5. a kind of CT machine brake according to claim 1, which is characterized in that the link block further includes filtered electrical Road, resistance R1, resistance R2 and resistance R3;The filter circuit includes resistance R4, capacitor C1 and capacitor C11;
The resistance R1, resistance R2, resistance R3 one end be separately connected three three-phase electricity output ends of the connecting terminal X4, institute State resistance R1, resistance R2, resistance R3 the other end be all connected with one end of the resistance R4, the other end connection of the resistance R4 PE;The resistance R4, capacitor C1 and capacitor C11 are parallel with one another.
6. a kind of CT machine brake according to claim 5, which is characterized in that further include feedback module;The feedback mould Block includes resistance R5, optocoupler U1, switching circuit and connecting terminal X3;
The cathode of photophore connects one end that the resistance R1 is not connect with the connecting terminal X4, the light in the optocoupler U1 The anode of photophore connects one end of the resistance R5 in coupling U1, and wherein the one of the other end connection three-phase rectification bridge D9 of resistance R5 A exchange input pin;
The anode access high level of light-receiving device in the optocoupler U1, and one end of the resistance R9 is connected, the resistance R9's is another One end, the A1 pin of the connecting terminal X3 and B3 pin merge, and connect the switching circuit;The connecting terminal The external brake resistor of X3;The cathode of light-receiving device connects the switching circuit in the optocoupler U1, and the switching circuit is also grounded; The B1 pin of the connecting terminal X3 is grounded, and A3 pin accesses high level.
7. a kind of CT machine brake according to claim 6, which is characterized in that the switching circuit includes resistance R7, electricity Hinder R8, capacitor C3 and metal-oxide-semiconductor M1;One end of the resistance R7 connects the cathode of light-receiving device in the optocoupler U1, the resistance R7 The other end connect the grid of the metal-oxide-semiconductor M1;One end of the resistance R8 connects the grid of the metal-oxide-semiconductor M1, the resistance The other end of R8 is grounded and connects the metal-oxide-semiconductor M1,;The capacitor C3 is parallel to the resistance R8;The drain electrode of the metal-oxide-semiconductor M1 Connect the A1 pin and B3 pin of the resistance R9, the connecting terminal X3;The feedback of the external SCR of connecting terminal X3 connects Mouthful.
8. a kind of CT machine brake according to claim 6, which is characterized in that the feedback module further includes diode D3;The anode of the diode D3 connects the cathode of photophore in the optocoupler U1, described in the cathode connection of the diode D3 The anode of photophore in optocoupler U1.
9. a kind of CT machine brake according to claim 1, which is characterized in that the grounding pin of the connecting terminal X4 connects PE is met, the grounding pin of the connecting terminal X5 is vacant.
CN201920326359.6U 2019-03-14 2019-03-14 A kind of CT machine brake Active CN209608566U (en)

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CN201920326359.6U CN209608566U (en) 2019-03-14 2019-03-14 A kind of CT machine brake

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Application Number Priority Date Filing Date Title
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CN209608566U true CN209608566U (en) 2019-11-08

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112730474A (en) * 2021-03-30 2021-04-30 同方威视技术股份有限公司 Radiographic inspection device and vehicle-mounted security inspection system

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112730474A (en) * 2021-03-30 2021-04-30 同方威视技术股份有限公司 Radiographic inspection device and vehicle-mounted security inspection system
CN112730474B (en) * 2021-03-30 2022-01-04 同方威视技术股份有限公司 Radiographic inspection device and vehicle-mounted security inspection system
WO2022206109A1 (en) * 2021-03-30 2022-10-06 同方威视技术股份有限公司 Radiographic inspection apparatus and vehicle-mounted security inspection system
GB2620045A (en) * 2021-03-30 2023-12-27 Nutech Company Ltd Radiographic inspection apparatus and vehicle-mounted security inspection system

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