Signal isolating and conditioning device
By designing a signal isolation and conditioning device with a detachable housing and a switch, the problem of disconnecting and reconnecting cables in the testing of existing devices has been solved, enabling cableless testing and convenient maintenance, and reducing the risk of damage and costs.
Patent Information
- Application Number
- CN202520172379.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-24
- Publication Date
- 2026-01-30
- Estimated Expiration
- 2035-01-24
AI Technical Summary
Existing signal isolation and conditioning devices require repeated disconnection and reconnection operations by staff during testing, which can damage the devices and cables, increase the risk of human error and labor costs, and make maintenance inconvenient.
Design a signal isolation and conditioning device, including a detachable housing and base, and use a switching switch to realize cableless testing of signal input and output. Combined with the detachable housing design, it allows testing and fault replacement without disconnecting cables.
It enables device testing without disconnecting cables, reducing the risk of damage and labor costs, and improving maintenance efficiency and the economics of nuclear power plants.
Smart Images
Figure CN223857254U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to nuclear power equipment technical field especially relates to a signal isolation conditioning device. BACKGROUND
[0002] In nuclear power plant, the signal transmission between equipment needs to use a large number of signal isolation conditioning devices, and the main function of the signal isolation conditioning device is to isolate, amplify and bias the transmission signal, to ensure that the error of output and output signal is within the standard range, and to improve the signal noise ratio, so as to ensure the stability of nuclear power plant operation. In order to ensure the safety of nuclear power plant, the performance of the signal isolation conditioning device in the plant needs to be tested regularly, but the existing signal isolation conditioning device mostly adopts the mode of bolt fixing cable to realize connection, so the staff needs to repeatedly disassemble and install the cable during testing, which occupies most of the testing time, and the disassembly and installation work not only causes damage to the device and cable, but also increases the risk of human error and labor cost. SUMMARY
[0003] The technical problem to be solved by the utility model is to provide a signal isolation conditioning device.
[0004] The utility model adopts the technical scheme that a signal isolation conditioning device is constructed, which comprises a base and a shell detachably installed on the base, a signal input interface group and a signal output interface group are arranged on the base, a signal isolation conditioning module is arranged in the shell, the shell comprises a first top surface, and the first top surface is provided with:
[0005] A test input interface group is used for inputting test signals.
[0006] A test output interface group is used for outputting the verification signals obtained by processing the test signals by the signal isolation conditioning module.
[0007] A switch is electrically connected with the signal input interface group, the signal isolation conditioning module, the signal output interface group and the test output interface group, and is used for connecting the input end of the signal isolation conditioning module with the test input interface group and simultaneously connecting the output end of the signal isolation conditioning module with the test output interface group, or connecting the input end of the signal isolation conditioning module with the signal input interface group and simultaneously connecting the output end of the signal isolation conditioning module with the signal output interface group.
[0008] Preferably, the base comprises a second top surface, the second top surface is provided with a first jack group electrically connected with the signal input interface group and a second jack group electrically connected with the signal output interface group.
[0009] The shell further comprises a first bottom surface opposite to the first top surface, and the first bottom surface is provided with a first terminal group and a second terminal group electrically connected with the switch, when the shell is mounted on the base, the first terminal group and the second terminal group are respectively inserted into the first jack group and the second jack group, so that the signal input interface group and the signal input interface group are electrically connected with the switch.
[0010] Preferably, the first jack group and the second jack group are provided with a foolproof mechanism.
[0011] Preferably, the base further comprises a second bottom surface, a first side surface and a second side surface opposite to the first side surface; the second bottom surface is provided with a guide groove connectable with a guide rail, the signal input interface group is arranged on the first side surface, and the signal output interface group is arranged on the second side surface.
[0012] Preferably, the signal input interface group comprises a plurality of first interfaces into which signal input cables can be inserted, and the signal input cables can be fixed by bolts after being inserted into the first interfaces.
[0013] The signal output interface group comprises a plurality of second interfaces into which signal output cables can be inserted, and the signal output cables can be fixed by bolts after being inserted into the second interfaces.
[0014] Preferably, the signal isolation and conditioning device further comprises:
[0015] A locking assembly connected with the base, for locking the shell on the base.
[0016] Preferably, the first top surface is provided with two clamping grooves; the locking assembly comprises two elastic locking pieces rotatably connected with the base and lockable in the two clamping grooves after the shell is mounted on the base.
[0017] Preferably, the first top surface is further provided with:
[0018] A display module electrically connected with the isolation and conditioning module, for displaying the input signal and the output signal of the isolation and conditioning module.
[0019] Preferably, the first top surface is further provided with:
[0020] A fault alarm lamp electrically connected with the isolation and conditioning module, for outputting an alarm signal when a set fault occurs.
[0021] A fault clearing button electrically connected with the isolation and conditioning module, for outputting a fault clearing instruction according to operation.
[0022] a signal amplification adjustment knob electrically connected with the isolation conditioning module, configured to output an amplification adjustment instruction according to operation; and
[0023] a signal bias adjustment knob electrically connected with the isolation conditioning module, configured to output a bias adjustment instruction according to operation.
[0024] Preferably, the switch includes a four-blade double-throw switch or a relay;
[0025] When the switch includes the four-blade double-throw switch, the four-blade double-throw switch includes a first double-throw combination, a second double-throw combination, a third double-throw combination and a fourth double-throw combination; the fixed contact, the first movable contact and the second movable contact of the first double-throw combination are electrically connected in sequence to the positive pole of the input end of the isolation conditioning module, the positive pole of the signal input interface group and the positive pole of the test input interface group, the fixed contact, the first movable contact and the second movable contact of the second double-throw combination are electrically connected in sequence to the negative pole of the input end of the isolation conditioning module, the negative pole of the signal input interface group and the negative pole of the test input interface group, the fixed contact, the first movable contact and the second movable contact of the third double-throw combination are electrically connected in sequence to the positive pole of the output end of the isolation conditioning module, the positive pole of the signal output interface group and the positive pole of the test output port, and the fixed contact, the first movable contact and the second movable contact of the fourth double-throw combination are electrically connected in sequence to the negative pole of the output end of the isolation conditioning module, the negative pole of the signal output interface group and the negative pole of the test output port; the four-blade double-throw switch includes a first state and a second state, in the first state, the fixed contact and the first movable contact in the same double-throw combination are closed, and in the second state, the fixed contact and the second movable contact in the same double-throw combination are closed;
[0026] When the switch includes the relay, the relay includes a first contact combination, a second contact combination, a third contact combination and a fourth contact combination; the fixed contact, the normally closed contact and the normally open contact of the first contact combination are electrically connected in sequence to the positive pole of the input end of the isolation conditioning module, the positive pole of the signal input interface group and the positive pole of the test input interface group, the fixed contact, the normally closed contact and the normally open contact of the second contact combination are electrically connected in sequence to the negative pole of the input end of the isolation conditioning module, the negative pole of the signal input interface group and the negative pole of the test input interface group, the fixed contact, the normally closed contact and the normally open contact of the third contact combination are electrically connected in sequence to the positive pole of the output end of the isolation conditioning module, the positive pole of the signal output interface group and the positive pole of the test output port, and the fixed contact, the normally closed contact and the normally open contact of the fourth contact combination are electrically connected in sequence to the negative pole of the output end of the isolation conditioning module, the negative pole of the signal output interface group and the negative pole of the test output port.
[0027] The utility model discloses have the following beneficial effects: can test the signal isolation conditioning device without disconnecting the relevant cable of signal output party equipment and signal receiving party equipment, avoid the device and cable from suffering damage, and reduce the risk of human error and manpower cost, improve the economy of nuclear power plant positively, and when the component on the shell of signal isolation conditioning device fails, can directly replace the whole shell to solve the trouble, improve the maintenance efficiency of signal isolation conditioning device. BRIEF DESCRIPTION OF DRAWINGS
[0028] The utility model will be further described below combining with the drawings and examples, and the drawings are as follows:
[0029] Figure 1 It is the structural schematic diagram of signal isolation conditioning device in some examples of the utility model,
[0030] Figure 2 It is the circuit structure block diagram of signal isolation conditioning module in some examples of the utility model,
[0031] Figure 3 It is Figure 1 The top view of signal isolation conditioning device in some examples of the utility model,
[0032] Figure 4 It is the structural schematic diagram of base in some examples of the utility model,
[0033] Figure 5 It is the top view of base and the bottom view of shell in some examples of the utility model. DETAILED DESCRIPTION
[0034] In order to have more clear understanding of the technical features, object and effect of the utility model, the specific implementation mode of the utility model will be explained in detail by comparing the drawings.
[0035] In the following description, it is understood that the orientation or position relation of "front", "back", "upper", "lower", "left", "right", "vertical", "horizontal", "vertical", "horizontal", "top", "bottom", "inner", "outer", "head", "tail" and the like is based on the orientation or position relation shown in the drawings, and is constructed and operated in a particular orientation, and is only for the convenience of describing the technical scheme, and cannot be understood as indicating that the indicated device or element must have a particular orientation, therefore, it cannot be understood as the limitation of the utility model.
[0036] Figure 1 It is the structural schematic diagram of signal isolation conditioning device in some examples of the utility model. As Figures 1 to 4As shown, the signal isolation conditioning device can include a base 1 and a shell 2 detachably mounted on the base 1, and the base 1 is provided with a signal input interface group 3 and a signal output interface group 4. The shell 2 is provided with a signal isolation conditioning module 201, and the shell 2 includes a first top surface 21, and the first top surface 21 is provided with a test input interface group 5, a test output interface group 6 and a switch 7.
[0037] The signal input interface group 3 is used to electrically connect the signal output side equipment of the nuclear power plant through a cable, such as a voltage, temperature, pressure sensor, etc.
[0038] The signal input interface group 3 is used to electrically connect the signal receiving side equipment of the nuclear power plant through a cable, such as a PLC controller, a computer and other control equipment.
[0039] The test input interface group 5 is used to access a test signal. Specifically, the test signal is a standard signal of the same type as the signal isolation conditioning device actually accesses, including but not limited to a voltage analog signal and a current analog signal.
[0040] The test output interface group 6 is used to output a verification signal obtained after the test signal is processed by the signal isolation conditioning module 201. Specifically, the signal isolation conditioning module 201 functions to isolate, amplify and bias the input signal (i.e. the test signal accessed by the test input interface group 5 or the real input signal accessed by the signal input interface group 3), and then output the output signal (i.e. the verification signal output by the test output interface group 6 or the real output signal output by the signal output interface group 4).
[0041] The switching switch 7 is electrically connected with the signal input interface group 3, the isolation and conditioning module 201, the signal output interface group 4 and the test output interface group 6. The switching switch 7 is used to connect the input end of the isolation and conditioning module 201 with the test input interface group 5 and simultaneously connect the output end of the isolation and conditioning module 201 with the test output interface group 6, or connect the input end of the isolation and conditioning module 201 with the signal input interface group 3 and simultaneously connect the output end of the isolation and conditioning module 201 with the signal output interface group 4. Specifically, when the signal isolation and conditioning device is not needed to be tested, the staff can operate the switching switch 7 to connect the input end of the isolation and conditioning module 201 with the signal input interface group 3 and connect the output end of the isolation and conditioning module 201 with the signal output interface group 4, so that the real input signal from the signal output side device can be input to the isolation and conditioning module 201 through the switching switch 7, the signal isolation and conditioning (i.e. isolation, amplification and bias) is realized, and the real output signal after the isolation and conditioning is transmitted to the signal receiving side device through the signal output interface group 4. When the signal isolation and conditioning device needs to be tested, the staff can operate the switching switch 7 to connect the input end of the isolation and conditioning module 201 with the test input interface group 5 and connect the output end of the isolation and conditioning module 201 with the test output interface group 6, so that the test signal is input to the isolation and conditioning module 201, and the verification signal can be obtained after the isolation and conditioning module 201 processes the test signal. In this way, the staff can compare the error between the test signal and the verification signal to evaluate whether the performance of the tested signal isolation and conditioning device meets the standard.
[0042] Understandably, when the signal isolation and conditioning device needs to be tested, the staff only needs to electrically connect the device capable of outputting the test signal to the signal input interface group 3, electrically connect the device receiving the verification signal to the signal output interface group 4, and operate the switching switch 7 to connect the input end of the isolation and conditioning module 201 with the test input interface group 5 and connect the output end of the isolation and conditioning module 201 with the test output interface group 6, so as to perform the test work without disassembling the related cables of the signal output side device and the signal receiving side device, thereby avoiding damage to the device and the cables, reducing the risk of human error and labor cost, playing a positive role in improving the economy of the nuclear power plant, and because the base 1 and the shell 2 are detachably installed, when it is found that the signal isolation and conditioning device does not meet the standard due to the failure of the components on the shell 2, the entire shell 2 can be directly replaced without disassembling the related cables of the signal output side device and the signal receiving side device, so as to solve the failure, which helps to improve the maintenance efficiency of the signal isolation and conditioning device.
[0043] It should be noted that the utility model mainly improves the structure and wiring mode of signal isolation conditioning device, aims at testing, saves the disconnection process, signal isolation conditioning module 201 can be the processing circuit in the existing signal isolation conditioning device, as long as it can realize the isolation, amplification and biasing of input signal processing, etc.
[0044] Of course, signal isolation conditioning module 201 can also be obtained by combining the existing circuit module, as shown in Figure 2 Signal isolation conditioning module 201 can include analog-digital conversion circuit U1, isolation circuit U2, digital-analog conversion circuit U3, signal conditioning circuit U4 and multi-output switching power supply circuit U5. Among them, the input end of analog-digital conversion circuit U1 is connected to switching switch 7 as the input end of signal isolation conditioning module 201, and the output end is connected to signal conditioning circuit U4 through isolation circuit U2 and digital-analog conversion circuit U3. The output end of signal conditioning circuit U4 is connected to switching switch 7 as the output end of signal isolation conditioning module 201.
[0045] Among them, analog-digital conversion circuit U1 is used to convert input signal into digital signal. Isolation circuit U2 can be composed of optical coupling or isolation chip, which can realize isolation of digital signal. Digital-analog conversion circuit U3 converts the isolated digital signal back to analog signal. Signal conditioning circuit U4 is used to amplify and / or bias the analog signal, so that the error between the analog signal and the input signal is within the standard range. And multi-output switching power supply circuit U5 is electrically connected with digital-analog conversion circuit U3 and signal conditioning circuit U4 to output multi-path power supply for digital-analog conversion circuit U3 and signal conditioning circuit U4.
[0046] In some embodiments, as Figure 5As shown, the base 1 can include a second top surface 11, the second top surface 11 being provided with a first jack group 12 electrically connected with the signal input interface group 3 and a second jack group 13 electrically connected with the signal output interface group 4. Correspondingly, the shell 2 further includes a first bottom surface 22 opposite to the first top surface 21, the first bottom surface 22 being provided with a first terminal group 23 and a second terminal group 24 electrically connected with the switch 7, when the shell 2 is mounted on the base 1, the first terminal group 23 is inserted into the first jack group 12 and the second terminal group 24 is inserted into the second jack group 13, so that the signal input interface group 3 and the signal input interface group 3 are electrically connected with the switch 7. Specifically, the first jack group 12 and the second jack group 13 can respectively include two jacks, the two jacks in the first jack group 12 are respectively electrically connected with the positive and negative poles of the signal input interface group 3, and the two jacks in the second jack group 13 are respectively electrically connected with the positive and negative poles of the signal output interface group 4. The first terminal group 23 and the second terminal group 24 can respectively include two terminals, the two terminals in the first terminal group 23 can be respectively connected with the two jacks in the first jack group 12, and the two terminals in the second terminal group 24 can be respectively connected with the two jacks in the second jack group 13.
[0047] In order to avoid misconnection or reverse connection when the shell 2 is mounted, in some embodiments, the first jack group 12 and the second jack group 13 are provided with a foolproof mechanism.
[0048] In some embodiments, as shown in Figure 1 and Figure 4 , the base 1 can further include a second bottom surface 14, a first side surface 15 and a second side surface 16 opposite to the first side surface 15. The second bottom surface 14 is provided with a guide groove 141 connectable with a guide rail, facilitating the fixation of the base 1 on the guide rail, so as to realize the fixation of the shell 2. The signal input interface group 3 is arranged on the first side surface 15, and the signal output interface group 4 is arranged on the second side surface 16, so that after the base 1 is mounted on the guide rail, the cables of the signal output side device and the signal receiving side device can be sequentially connected to the signal input interface group 3 and the signal output interface group 4 by the staff.
[0049] Although the shell 2 can be fixed on the base 1 to a certain extent by inserting the terminals into the jacks, there is still a risk of falling off. In order to improve the stability of the shell 2 after installation, in some embodiments, as shown in Figure 1 , the signal isolation and conditioning device can further include a lock assembly 8. The lock assembly 8 is connected with the base 1, and the lock assembly 8 is used to lock the shell 2 on the base 1.
[0050] Further, in some embodiments, as shown in Figure 1As shown, the first top surface 21 is provided with two clamping grooves 25. Correspondingly, the locking assembly 8 includes two elastic locking pieces 81 rotatably connected with the base 1 and capable of being respectively locked in the two clamping grooves 25 after the shell 2 is mounted to the base 1. The elastic locking piece 81 can be an existing locking spring.
[0051] In some embodiments, as shown in Figure 1 The signal input interface group 3 includes a plurality of first interfaces 31 into which signal input cables connected with signal input devices can be inserted, and the signal input cables can be fixed by bolts after being inserted into the first interfaces 31. Correspondingly, as shown in Figure 4 The signal output interface group 4 includes a plurality of second interfaces 41 into which signal output cables connected with signal receiving devices can be inserted, and the signal output cables can be fixed by bolts after being inserted into the second interfaces 41.
[0052] Although the transmission of real input signals and real output signals only requires two cables, the signal isolation conditioning device usually takes power from the signal input device or the signal receiving device and feeds back some status signals to the related devices, and therefore the number of the first interfaces 31 and the second interfaces 41 is preferably six.
[0053] In some embodiments, as shown in Figure 3 The first top surface 21 is further provided with a display module 9. The display module 9 is electrically connected with the isolation conditioning module 201, and the display module 9 is used to display the input signal and the output signal of the isolation conditioning module 201. It can be understood that whether the signal isolation conditioning device is tested or not, the display module 9 can display the input signal and the output signal of the isolation conditioning module 201, so that the staff can intuitively observe the input signal and the output signal of the isolation conditioning module 201 on the signal isolation conditioning device, compare them, and thus determine whether the signal isolation conditioning device is faulty.
[0054] Further, as shown in Figure 3 The first top surface 21 can be further provided with a fault alarm lamp 10, a fault clearing button 20, a signal amplification adjusting knob 30 and a signal bias adjusting knob 40. The fault alarm lamp 10 is electrically connected with the isolation conditioning module 201, and the fault alarm lamp 10 is used to output an alarm signal when a set fault (for example, the deviation of the input signal and the output signal of the isolation conditioning module 201 is not within a standard range) occurs.
[0055] The fault clear button 20 is electrically connected to the isolation conditioning module 201. The fault clear button 20 is used to output a fault clearing command according to the operator's operation. For example, when the deviation between the input signal and the output signal of the isolation conditioning module 201 is not within the standard range, after the operator adjusts the input signal and output signal to be within the standard range by operating the signal amplification adjustment knob 30 and the signal bias adjustment knob 40, the operator can press the fault clear button 20 to clear the fault alarm and stop the fault alarm light 10 from outputting the alarm signal.
[0056] The signal amplification adjustment knob 30 is electrically connected to the isolation conditioning module 201. The signal amplification adjustment knob 30 is used to output amplification adjustment commands according to the operation. It should be noted that the signal conditioning circuit U4 in the existing isolation conditioning module 201 usually consists of an amplification circuit and a bias circuit, while the signal amplification adjustment knob 30 usually includes a potentiometer to adjust the gain of the amplification circuit. Therefore, the amplification factor of the analog signal can be controlled by operating the signal amplification adjustment knob 30.
[0057] The signal bias adjustment knob 40 is electrically connected to the isolation conditioning module 201. The signal bias adjustment knob 40 is used to output bias adjustment commands according to the operation. The signal bias adjustment knob 40 typically includes a potentiometer that adjusts the bias value of the bias circuit. Therefore, the bias of the analog signal can be controlled by operating the signal bias adjustment knob 40. In conjunction with the signal amplification adjustment knob 30, the amplitude of the analog signal can be adjusted.
[0058] In some embodiments, such as Figure 2 As shown, the switching switch 7 includes a four-pole double-throw switch or a relay.
[0059] When the switch 7 comprises a four-blade double-throw switch, the four-blade double-throw switch comprises a first double-throw combination, a second double-throw combination, a third double-throw combination and a fourth double-throw combination; the fixed contact, the first movable contact and the second movable contact of the first double-throw combination are electrically connected in sequence to the positive pole of the input end of the isolation conditioning module 201, the positive pole (IN+) of the signal input interface group 3 and the positive pole (TIN+) of the test input interface group 5; the fixed contact, the first movable contact and the second movable contact of the second double-throw combination are electrically connected in sequence to the negative pole of the input end of the isolation conditioning module 201, the negative pole (IN-) of the signal input interface group 3 and the negative pole (TIN-) of the test input interface group 5; the fixed contact, the first movable contact and the second movable contact of the third double-throw combination are electrically connected in sequence to the positive pole of the output end of the isolation conditioning module 201, the positive pole (OUT+) of the signal output interface group 4 and the positive pole (TOUT+) of the test output port; the fixed contact, the first movable contact and the second movable contact of the fourth double-throw combination are electrically connected in sequence to the negative pole of the output end of the isolation conditioning module 201, the negative pole of the signal output interface group 4 and the negative pole (TOUT-) of the test output port; the four-blade double-throw switch comprises a first state and a second state, in the first state, the fixed contact and the first movable contact in the same double-throw combination are closed, and in the second state, the fixed contact and the second movable contact in the same double-throw combination are closed. Understandably, the operator can control whether the switch 7 is in the first state or the second state by operating the switch 7.
[0060] When the switch 7 comprises a relay, the relay comprises a first contact combination, a second contact combination, a third contact combination and a fourth contact combination; the fixed contact, the normally closed contact and the normally open contact of the first contact combination are electrically connected in sequence to the positive pole of the input end of the isolation conditioning module 201, the positive pole of the signal input interface group 3 and the positive pole of the test input interface group 5; the fixed contact, the normally closed contact and the normally open contact of the second contact combination are electrically connected in sequence to the negative pole of the input end of the isolation conditioning module 201, the negative pole of the signal input interface group 3 and the negative pole of the test input interface group 5; the fixed contact, the normally closed contact and the normally open contact of the third contact combination are electrically connected in sequence to the positive pole of the output end of the isolation conditioning module 201, the positive pole of the signal output interface group 4 and the positive pole of the test output port; the fixed contact, the normally closed contact and the normally open contact of the fourth contact combination are electrically connected in sequence to the negative pole of the output end of the isolation conditioning module 201, the negative pole of the signal output interface group 4 and the negative pole of the test output port. Wherein, the relay can be an existing manual control relay, and the operator can operate the relay according to actual needs to make the fixed contact and the normally closed contact or the fixed contact and the normally open contact in the first to fourth contact combinations closed.
[0061] It can be understood that the above embodiment only expresses the preferred embodiment of the utility model, the description is more specific and detailed, but it can not be understood as the limitation of the utility model patent scope; it should be pointed out that for ordinary skilled person in the art, the above technical features can be freely combined without departing from the concept of the utility model, and a number of deformations and improvements can be made, which belong to the protection scope of the utility model; therefore, any equivalent transformation and modification within the scope of the utility model patent claim should belong to the scope of the utility model patent claim.
Claims
1. A signal isolation conditioning device, characterized by, The base (1) is provided with a signal input interface group (3) and a signal output interface group (4), and the shell (2) is provided with a signal isolation and conditioning module (201) therein; the shell (2) comprises a first top surface (21), and the first top surface (21) is provided with: a test input interface group (5) for inputting a test signal; a test output interface group (6) for outputting a verification signal obtained by processing the test signal by the signal isolation and conditioning module (201); and a switch (7) electrically connected with the signal input interface group (3), the signal isolation and conditioning module (201), the signal output interface group (4) and the test output interface group (6), for connecting the input end of the signal isolation and conditioning module (201) with the test input interface group (5) and simultaneously connecting the output end of the signal isolation and conditioning module (201) with the test output interface group (6), or connecting the input end of the signal isolation and conditioning module (201) with the signal input interface group (3) and simultaneously connecting the output end of the signal isolation and conditioning module (201) with the signal output interface group (4).
2. The signal isolation conditioning device of claim 1, wherein, The base (1) comprises a second top surface (11) provided with a first jack group (12) electrically connected with the signal input interface group (3) and a second jack group (13) electrically connected with the signal output interface group (4); The shell (2) further comprises a first bottom surface (22) opposite to the first top surface (21), and the first bottom surface (22) is provided with a first terminal group (23) and a second terminal group (24) electrically connected with the switch (7); when the shell (2) is mounted on the base (1), the first terminal group (23) and the second terminal group (24) are respectively inserted into the first jack group (12) and the second jack group (13), so that the signal input interface group (3) and the signal output interface group (4) are electrically connected with the switch (7).
3. The signal isolation conditioning device of claim 2, wherein, The first jack group (12) and the second jack group (13) are provided with a foolproof mechanism.
4. The signal isolation conditioning device of claim 2, wherein, The base (1) further comprises a second bottom surface (14), a first side surface (15) and a second side surface (16) opposite to the first side surface (15); the second bottom surface (14) is provided with a guide groove (141) connectable with a guide rail, the signal input interface group (3) is arranged on the first side surface (15), and the signal output interface group (4) is arranged on the second side surface (16).
5. The signal isolation conditioning device of claim 4, wherein, The signal input interface group (3) comprises a plurality of first interfaces (31) into which signal input cables can be inserted, and the signal input cables inserted into the first interfaces (31) can be fixed by bolts; The signal output interface group (4) comprises a plurality of second interfaces (41) into which signal output cables can be inserted, and the signal output cables inserted into the second interfaces (41) can be fixed by bolts.
6. The signal isolation conditioning device of claim 1, wherein, Further comprising: A lock assembly (8) is connected with the base (1) and used for locking the shell (2) on the base (1).
7. The signal isolation conditioning device of claim 6, wherein, Two elastic lock pieces (81) are rotatably connected with the base (1) and can be locked in the two clamping grooves (25) after the shell (2) is mounted on the base (1).
8. The signal isolation conditioning device of claim 1, wherein, The first top surface (21) is further provided with: A display module (9) is electrically connected with the isolation and conditioning module (201) and used for displaying the input signal and output signal size of the isolation and conditioning module (201).
9. The signal isolation conditioning device of claim 8, wherein, The first top surface (21) is further provided with: A fault alarm lamp (10) is electrically connected with the isolation and conditioning module (201) and used for outputting an alarm signal when a set fault occurs; A fault clearing button (20) is electrically connected with the isolation and conditioning module (201) and used for outputting a fault clearing instruction according to operation; A signal amplification adjusting knob (30) is electrically connected with the isolation and conditioning module (201) and used for outputting an amplification adjusting instruction according to operation; and A signal bias adjusting knob (40) is electrically connected with the isolation and conditioning module (201) and used for outputting a bias adjusting instruction according to operation.
10. The signal isolation and conditioning device according to any one of claims 1 to 9, characterized in that The switching switch (7) comprises a four-blade double-throw switch or a relay; When the switching switch (7) comprises the four-blade double-throw switch, the four-blade double-throw switch comprises a first double-throw combination, a second double-throw combination, a third double-throw combination and a fourth double-throw combination; the fixed contact, the first movable contact and the second movable contact of the first double-throw combination are sequentially electrically connected with the positive electrode of the input end of the isolation and conditioning module (201), the positive electrode of the signal input interface group (3) and the positive electrode of the test input interface group (5), the fixed contact, the first movable contact and the second movable contact of the second double-throw combination are sequentially electrically connected with the negative electrode of the input end of the isolation and conditioning module (201), the negative electrode of the signal input interface group (3) and the negative electrode of the test input interface group (5), the fixed contact, the first movable contact and the second movable contact of the third double-throw combination are sequentially electrically connected with the positive electrode of the output end of the isolation and conditioning module (201), the positive electrode of the signal output interface group (4) and the positive electrode of the test output port, and the fixed contact, the first movable contact and the second movable contact of the fourth double-throw combination are sequentially electrically connected with the negative electrode of the output end of the isolation and conditioning module (201), the negative electrode of the signal output interface group (4) and the negative electrode of the test output port; the four-blade double-throw switch comprises a first state and a second state, in the first state, the fixed contact and the first movable contact in the same double-throw combination are closed, and in the second state, the fixed contact and the second movable contact in the same double-throw combination are closed. When the switch (7) comprises the relay, the relay comprises a first contact combination, a second contact combination, a third contact combination and a fourth contact combination; the static contact, the normally closed contact and the normally open contact of the first contact combination are sequentially electrically connected to the positive pole of the input end of the isolation conditioning module (201), the positive pole of the signal input interface group (3) and the positive pole of the test input interface group (5), the static contact, the normally closed contact and the normally open contact of the second contact combination are sequentially electrically connected to the negative pole of the input end of the isolation conditioning module (201), the negative pole of the signal input interface group (3) and the negative pole of the test input interface group (5), the static contact, the normally closed contact and the normally open contact of the third contact combination are sequentially electrically connected to the positive pole of the output end of the isolation conditioning module (201), the positive pole of the signal output interface group (4) and the positive pole of the test output port, and the static contact, the normally closed contact and the normally open contact of the fourth contact combination are sequentially electrically connected to the negative pole of the output end of the isolation conditioning module (201), the negative pole of the signal output interface group (4) and the negative pole of the test output port.