Direct current voltage signal isolator

Abstract

The utility model discloses a direct current voltage signal isolator, including shell and two clamping teeth, the shell is by half edge shell I and half edge shell II through bolt tight cover and is made, the top of fixed part has the slot for the plug -in installation shell, and the bottom of this fixed part has the bottom recess, and the side of shell has the side recess, the bottom of the " " of push frame is located in the bottom recess, and the push frame is fixed with the side recess through the positioning structure to make the push frame relative fixed between the side recess and shell after moving, and with the installation area drive board body is inserted into the aperture of the middle part of the guide rail for supporting, two clamping teeth symmetrical adjustable installation are in the bottom recess, and be used for clamping on the guide rail. The utility model, avoided when using external bolt when signal isolation and guide rail installation fixed need extra punching and the inconvenience in the narrow space operation's disadvantages, bring the convenience to the installation and dismount of this signal isolator.

Description

Technical Field

[0011]

[0001] The utility model relates to the technical field of signal isolators, and specifically relates to a DC voltage signal isolator. Background Technique

[0002] A DC signal isolator means that the DC signal is input, and after being isolated, interference suppressed, etc., the required DC signal is output to the control system or other instruments, with one input and three-channel isolated outputs. It is powered by a DC power supply. The power supply is isolated between the input, output, and each channel. It is installed in a standard 35mm DIN rail clip type. The pluggable wiring plug terminals are connected by spring compression and can be used in conjunction with various instruments and systems such as DCS and PLC.

[0003] However, the current signal isolators often have the following defects during the installation process with the rail: They are connected to the rail by a snap-on method, but are prone to sliding under external force. If fixation is required, external bolts need to be used for fixation, which makes the operation relatively inconvenient. Since the distance between the two snap-on teeth at the bottom of the isolator is fixed, if the rail widths are inconsistent during the installation process, the installation range may be limited. <00,00008>Content of the Utility Model

[0004] The purpose of the utility model is to provide a DC voltage signal isolator to solve the problems raised in the above background technique.

[0005] To achieve the above purpose, the utility model provides the following technical solutions:

[0006] A DC voltage signal isolator, comprising:

[0007] A housing, which is formed by screwing together a half shell I and a half shell II with bolts;

[0008] A fixing member, the top of which has a slot for inserting the housing, and the bottom of the fixing member has a bottom groove, and the side of the housing has a side groove;

[0009] A "U"-shaped push frame, the bottom of the "U"-shaped push frame is located in the bottom groove, and a plate body is installed at the bottom as an installation area;

[0010] The "U"-shaped push frame and the side groove are fixed relative to each other through a positioning structure so that the push frame moves relative to the side groove and is fixed relative to the housing, and the plate body is driven by the installation area to be inserted into the opening in the middle of the rail for support;

[0011] Two snap-on teeth, which are symmetrically and adjustably installed in the bottom groove and are used for snap-on connection to the rail.

[0012] Furthermore, the positioning structure includes an insert and a comb plate, the top of the pusher has a through groove, the comb plate is located in a side groove, the insert is inserted into the through groove, and the top of the insert is adapted to the tooth groove of the comb plate.

[0013] Furthermore, the inner end of the insert is a pointed end, and the outer end has a gripping handle to prevent detachment. The pointed end is adapted to the toothed groove. The side of the insert has an outwardly convex arc-shaped spring and an inwardly concave arc-shaped groove. The arc-shaped spring spans the arc-shaped groove and can be stored in the arc-shaped groove.

[0014] Furthermore, the side of the insert also has an anti-detachment part, which is on the same side as the arc-shaped groove and close to the pointed end.

[0015] Furthermore, the spacing between the two locking teeth can be changed by adjusting the structure.

[0016] Furthermore, the adjustment structure includes a rotating rod, which is mounted on a fixing member and passes through the bottom groove and two locking teeth, driving the two locking teeth to move closer or further apart.

[0017] Furthermore, the end of the rotating rod has a handle, the rotating rod located in the bottom groove has threads, and the rotating rod near the installation area has two symmetrical limiting rings.

[0018] Furthermore, the rotating rod has a smooth surface except for the threaded part, and the fixing part is also equipped with a guide rod that passes through the bottom groove and the snap-fit ​​tooth. The rotating handle has a groove reserved, and the thread texture at both ends is symmetrically distributed about the rotating rod axis.

[0019] Furthermore, the fastener has a rotatable fixing lug on its side, and the fixing lug has a pre-drilled hole.

[0020] Furthermore, the fixing ear has two legs, the side of the fixing member has a support, the legs and the support are hinged by a pin, and there is a clearance groove between the two legs.

[0021] Compared with the prior art, the beneficial effects of this utility model are:

[0022] This invention employs a positioning structure with inserts mounted on a pusher frame. The pointed ends of these inserts fit into the toothed grooves of the corresponding comb plate, creating a positioning fit. This allows the pusher frame and the outer casing to be relatively positioned and fixed. Simultaneously, the pusher frame drives the plate to insert into the opening in the center of the support rail, overcoming friction caused by external forces that could cause the signal isolator to move. This prevents the signal isolator from sliding under external forces (such as rail vibration or accidental contact by a person or animal) during the process of fixing it to the rail.

[0023] This invention features a pusher mechanism that is relatively easy to operate. The pusher can be quickly and easily pushed into the opening in the center of the guide rail without requiring excessive force, thus quickly fixing the signal isolator to the guide rail. Furthermore, when the signal isolator needs to be moved back on the guide rail, the plate can be easily pulled out of the opening. The operation is simple, time-saving, and labor-saving, while providing excellent fixation. It avoids the disadvantages of using external bolts, such as the need for additional drilling and the inconvenience of operation in confined spaces, making the installation and disassembly of the signal isolator convenient.

[0024] This invention, through adjusting the rotating handle driving the rotating rod, allows for adjustment of the distance between the two locking teeth, ultimately enabling the isolator to be locked onto guide rails of varying heights. This improves the versatility of the signal isolator's installation.

[0025] This invention allows the signal isolator to be fixed to a mounting surface or enclosure using its provided mounting ears when a guide rail is not required. When the mounting ears are not needed, they are folded up, minimizing installation space usage. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the structure of this utility model.

[0027] Figure 2 This utility model Figure 1 Another perspective illustration.

[0028] Figure 3 This is a schematic diagram showing how the insert is pulled out and fixed to the comb plate before the pusher is pushed.

[0029] Figure 4 This is a schematic diagram showing how the pusher of this utility model moves the plate into the opening of the guide rail.

[0030] Figure 5 This utility model Figure 4 Another perspective illustration.

[0031] Figure 6 This is a schematic diagram of the present invention without the guide rail and plate.

[0032] Figure 7 This is a cross-sectional view of some components of this utility model.

[0033] Figure 8 This is a schematic diagram of the unfolded fixing ear of this utility model.

[0034] Figure 9 This is a wiring diagram for one output of this utility model.

[0035] Figure 10This is a wiring diagram for one output and two outputs of this utility model.

[0036] Figure 11 This is a wiring diagram for the two inputs and outputs of this utility model.

[0037] In the diagram: 1-Outer shell, 2-Half shell I, 3-Half shell II, 4-Fixing component, 5-Slot, 6-Bottom groove, 7-Push bracket, 8-Side groove, 9-Mounting area, 10-Board, 11-Guide rail, 12-Opening, 13-Snap-fit ​​thread, 14-Insertion plate, 15-Comb plate, 16-Tip, 17-Arc groove, 18-Arc spring, 19-Anti-detachment part, 20-Handle thread, 21-Through groove, 22-Rotating rod, 23-Rotating handle, 24-Guide rod, 25-Fixing ear, 26-Rotating groove, 27-Allowing groove, 28-Support, 29-Permanent magnet, 30-Heat dissipation hole, 31-Limiting ring, 32-Ear hole, 33-Pin, 34-Input / output interface. Detailed Implementation

[0038] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0039] In the description of this utility model, it should be noted that the terms "upper end," "lower end," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0040] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "sleeved with," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0041] Please see Figures 1 to 11 , the present utility model provides a technical solution:

[0042] A DC voltage signal isolator, comprising:

[0043] A housing 1, the housing 1 is formed by screwing together a half shell I 2 and a half shell II 3 with bolts;

[0044] A fixing member 4, the top of the fixing member 4 has a slot 5 for inserting the housing 1, and the bottom of the fixing member 4 has a bottom groove 6, and the side of the housing 1 has a side groove 8;

[0045] A "C"-shaped push frame 7, the bottom of the "C"-shaped push frame 7 is located in the bottom groove 6, and the bottom serves as an installation area 9 where a plate body 10 is installed;

[0046] Between the "C"-shaped push frame 7 and the side groove 8, a positioning structure is provided so that after the push frame 7 moves relative to the side groove 8, it is relatively fixed to the housing 1, and the plate body 10 is driven by the installation area 9 to be inserted into an opening 12 in the middle of a guide rail 11 for support;

[0047] Two clamping teeth 13, the two clamping teeth 13 are symmetrically and adjustably installed in the bottom groove 6 and are used for clamping on the guide rail 11.

[0048] In this embodiment, the half shell I 2 and the half shell II 3 are screwed together with bolts to form a housing 1. Similarly, the fixing member 4 can also be a shell with a slot 5 formed by screwing together two half shells. Shell material: flame-retardant ABS+PC (polycarbonate) material.

[0049] A DC / DC driver is installed in the housing 1, and the model is such as LT3999, which is used for isolating the power supply of the isolated signal to ensure absolute independence between the transformed signal, power supply, and ground. The model / type / size of the DC / DC driver can be flexibly selected by those skilled in the art according to actual accuracy and needs and then installed in the housing 1, which is a conventional technical means and will not be elaborated here.

[0050] Since most current isolators are prone to sliding under external forces after being clamped to the guide rail, to solve the problem of the isolator being prone to sliding, external bolts are usually used to fix the isolator to the guide rail, but the main drawbacks of this operation are: it takes more time for disassembly and assembly, and if the installation space is narrow, the operation will be more inconvenient.

[0051] In view of this, in this embodiment: by pushing the "C"-shaped push frame 7, the plate body 10 is driven by the installation area 9 to be inserted into the opening 12 in the middle of the guide rail 11 for support, so that the signal isolator can be relatively fixed to the guide rail 11, thereby achieving the fixation of the signal isolator.

[0052] During the fixing process, in order to prevent the signal isolator from sliding due to external forces (such as vibration of the guide rail, accidental touch by a person or an animal), it is necessary to position the push frame 7. In this embodiment, a positioning structure is used to achieve the positioning cooperation between the push frame 7 and the housing 1, so that the frictional force that overcomes the movement of the signal isolator due to external forces can be obtained.

[0053] Specifically, the positioning structure includes an insertion piece 14 and a comb tooth plate 15. The top of the push frame 7 has a through groove 21. The comb tooth plate 15 is located in the side groove 8. The insertion piece 14 is inserted into the through groove 21, and the top is adaptively inserted into the tooth groove of the comb tooth plate 15. The inner end of the insertion piece 14 is a pointed end 16, and the outer end has an anti - detachment pinch handle 20. The pointed end 16 is adapted to the tooth groove. The side of the insertion piece 14 has an outwardly convex arc - shaped elastic piece 18 and an inwardly concave arc - shaped groove 17. The arc - shaped elastic piece 18 straddles the arc - shaped groove 17 and can be received into the arc - shaped groove 17.

[0054] The side of the insertion piece 14 also has an anti - detachment part 19. The anti - detachment part 19 is on the same side as the arc - shaped groove 17 and is close to the pointed end 16.

[0055] As Figure 1 and Figure 2 shown, the overall shape of the push frame 7 is in an inverted - U shape. The material of the push frame 7 can be metal such as copper sheet, or non - metal such as TPU (thermoplastic polyurethane), etc. Initially, the insertion piece 14 is near the top of the side groove 8. At this time, the pointed end 16 is adaptively inserted into the tooth groove of the comb tooth plate 15 at the top, and the plate body 10 is located between the two clamping teeth 13 of the bottom groove 6 and does not protrude outside the clamping teeth 13, and does not affect the installation between the clamping teeth 13 and the guide rail 11.

[0056] The tooth groove of the comb tooth plate 15 is in a wave shape, and the shape of the pointed end 16 matches the shape of the tooth groove.

[0057] By inserting the pointed end 16 of the insertion piece 14 into the tooth groove of the corresponding comb tooth plate 15, through the clamping force between the two, the push frame 7 and the housing 1 can be relatively fixed. In order to better position the two and prevent the pointed end 16 from sliding / slipping out of the tooth groove without being pulled, the outer end of the insertion piece 14 has an anti - detachment pinch handle 20. At the same time, the side of the insertion piece 14 has an outwardly convex arc - shaped elastic piece 18. The insertion piece 14 is stuck between the pinch handle and the arc - shaped elastic piece 18. Through the cooperation of the pinch handle 20 and the arc - shaped elastic piece 18, the insertion piece 14 can be relatively fixed on the push frame 7.

[0058] As Figure 3As shown, the handle 20 is T-shaped and has anti-slip texture. After the pointed end 16 is inserted into the toothed groove, the inner side of the handle 20 abuts against the outer side of the pusher 7, while the outer end of the arc-shaped spring piece 18 abuts against the inner side of the pusher 7, so that the insert piece 14 can be relatively locked.

[0059] like Figure 7 As shown, the side of the fixing member 4 has a strip-shaped groove 35, and the bottom of the strip-shaped groove 35 extends to the inner side of the bottom groove 6 pusher 7 near the bottom end, where a slider 36 is adapted to slide in the groove 35. After the slider 36 is inserted into the strip-shaped groove 35, the two slide together, which makes the pusher 7 move up and down more smoothly. When the pointed end 16 is in the top toothed groove, the slider 36 abuts against the top of the strip-shaped groove 35.

[0060] When it is necessary to move the plate 10 so that it can be inserted into the opening 12, the pusher 7 is pushed, and the pusher 7 slides smoothly in the strip groove 35 via the slider 36, thereby driving the plate 10 to be inserted into the opening 12 in the middle of the guide rail 11 used for support through the mounting area 9. Once the plate 10 reaches the designated position (inside the opening 12), as... Figure 4 As shown, inserting the pointed end 16 into the corresponding toothed groove can fix the pusher 7 and the outer casing 1 relative to each other.

[0061] It should be noted that, as Figure 3 As shown, before pushing the pusher 7, the pointed end 16 of the insert 14 needs to be pulled out of the tooth groove of the comb plate 15. The operator pinches the handle 20 with his thumb and forefinger and pulls it outward. Due to the pulling force, the insert 14 moves in the through groove 21, and the arc-shaped spring pieces 18 on both sides are forced into the arc-shaped groove 17. When the arc-shaped spring pieces 18 are fully squeezed into the arc-shaped groove 17, the insert 14 can be pulled out, thereby disengaging the pointed end 16 from the tooth groove. As the insert 14 is pulled out, the arc-shaped spring pieces 18 can pop out of the arc-shaped groove 17 again. This ensures that when pushing the pusher 7, the insert 14 will not re-insert inward, thus preventing the pointed end 16 from inserting into the tooth groove and affecting the pushing and pulling of the pusher 7. To prevent the insert 14 from being pulled out of the pusher 7, an anti-disengagement part 19 is provided. After pushing or pulling the pusher 7 the required distance, the plate 10 is inserted into the opening 12. Then, by pinching the handle 20, the insert 14 is pushed inward to return to its original position, so that the pointed end 16 is inserted into the corresponding toothed groove (e.g., Figure 4 This allows the pusher 7 to be relatively fixed to the outer casing 1.

[0062] In this embodiment, the outer end of the comb plate 15 does not extend beyond the side groove 8. The arc-shaped spring 18 can be a metal spring, such as a stainless steel spring, and its elasticity can be flexibly selected according to actual usage. By squeezing the handle 20 and applying a certain pulling or pushing force, the arc-shaped spring 18 can be squeezed into the arc-shaped groove 17, thereby achieving the purpose of pushing and pulling the insert 14. The length of the push-pull insert 14 should be as short as possible while ensuring that the push frame 7 and the outer shell 1 are relatively fixed. Similarly, the handle 20 should be as short as possible while still being able to be squeezed by hand, which is beneficial for the side-by-side installation of the isolators.

[0063] The length of the comb plate 15 can be determined based on the distance from the plate body 10 to the opening 12 in the middle of the guide rail 11.

[0064] As is well known, although the shapes of signal isolators vary, the common dimensions of most signal isolators are: width (thickness) × height × depth = W13 × H102 × D115 (mm) and width (thickness) × height × depth = W22.5 × H100 × D115 (mm). In this case, the installer can cross the outer casing 1 with their thumb and forefinger and / or middle finger and then pinch the pusher 7 on both sides to push and pull it.

[0065] Even if the signal isolator is relatively large in size, such as W122×H18×D96 or W95×H23×D120 (mm), it can be easily operated by pushing and pulling the pusher 7 from both sides simultaneously with both hands. This makes operation relatively simple, requiring minimal effort to quickly push the pusher 7 to move the plate 10 to the opening 12 in the middle of the guide rail 11, thus quickly fixing the signal isolator to the guide rail 11. Furthermore, when the signal isolator needs to be moved back on the guide rail 11, the plate 10 can be easily pulled out from the opening 12. The operation is simple, time-saving, labor-saving, and provides good fixation.

[0066] In this embodiment, the outer shell 1 is inserted into the slot 5 to fix it to the fixing member 4. There can be a certain friction between the outer shell 1 and the slot 5 to prevent the outer shell 1 from falling out of the slot 5. Alternatively, it can be fixed with bolts after insertion. The insert 14, comb plate 15 and pinch handle 20 can be installed only on one side of the fixing member 4 or symmetrically on both sides.

[0067] In this embodiment, when it is not necessary to use the plate 10 to enter the opening 12, the plate 10 is stored in the bottom groove 6, which will not affect the installation of the entire isolator with the guide rail 11, nor will it affect the movement of the isolator to the appropriate position on the guide rail 11.

[0068] It should be noted that the size and shape of the plate 10 can be determined according to the size and shape of the opening 12 to achieve a suitable fit. Since the plate 10 is moved into the opening 12 by simply operating the pusher 7, the isolator and guide rail 11 are relatively fixed, making operation convenient even in confined spaces. This is especially suitable for situations where the distance between the isolator and guide rail 11 is small and they are close together, avoiding the drawbacks of using external bolts that require additional drilling and are inconvenient to operate in confined spaces. This facilitates the installation and disassembly of the signal isolator.

[0069] Specifically, the spacing between the two locking teeth 13 is changed by adjusting the structure.

[0070] Specifically, the adjustment structure includes a rotating rod 22, which is mounted on the fixing member 4 and passes through the bottom groove 6 and two locking teeth 13, driving the two locking teeth 13 to move closer or further apart.

[0071] Specifically, the end of the rotating rod 22 has a handle 23, the rotating rod 22 located in the bottom groove 6 has a thread, and the rotating rod 22 near the mounting area 9 has two symmetrical limiting rings 31.

[0072] Specifically, the rotating rod 22 has a smooth surface except for the thread. The fixing member 4 is also equipped with a guide rod 24 that passes through the bottom groove 6 and the snap-fit ​​tooth 13. The rotating handle 23 has a groove, and the thread texture at both ends is symmetrically distributed about the axis of the rotating rod 22.

[0073] Specifically, the side of the fixing member 4 is equipped with a rotatable fixing ear 25, and the fixing ear 25 has a pre-drilled ear hole 32.

[0074] Specifically, the fixing ear 25 has two legs, the side of the fixing member 4 has a support 28, the legs and the support 28 are hinged by a pin 33, and there is a clearance groove 27 between the two legs.

[0075] As is well known, due to variations in the external dimensions of signal isolators, the dimensions of the corresponding guide rails 11 may also differ. For non-standard sized guide rails 11, the spacing between the two locking teeth 13 is adjusted by adjusting the structure. This embodiment is particularly suitable for guide rails 11 of the same thickness but different heights.

[0076] In this embodiment, as Figure 5As shown, by rotating the handle 23 clockwise, the lever 22 rotates. Because the thread texture / pattern at both ends is symmetrically distributed about the smooth surface, the two locking teeth 13 can move synchronously closer / away from each other within the bottom groove. Conversely, by rotating the handle 23 counterclockwise, the two locking teeth 13 move synchronously away / closer, allowing adjustment of the distance between them. This enables the isolator to be mounted on guide rails 11 at different heights, thereby improving the versatility of the signal isolator's installation.

[0077] In this embodiment, as Figure 6 As shown, except for the threads, the rotating rod 22 is a smooth surface in all other places: the insertion part with the fixing member 4 (the area between the two limiting rings 31 can also be a smooth surface), so it is easy for the rotating rod 22 to rotate relative to the fixing member 4. Moreover, in order to ensure that the snap-fit ​​tooth 13 can slide smoothly in the bottom groove 6, two smooth guide rods 24 are provided that pass through the snap-fit ​​tooth 13.

[0078] It should be noted that when the plate 10 is not moved and enters the opening 12, the rotating rod 22 passes through the "U"-shaped mounting area 9. Figure 6 As shown, the bottom of the installation area 9 is close to but does not contact the guide rod 24 and the rotating rod 22. This ensures that neither the push frame 7 moving up and down nor the rotating rod 22 rotating will interfere with each other or affect their respective operation.

[0079] It should be noted that the handle 23 can be rotated by hand, making it convenient to operate and suitable for use in confined spaces. Figure 2 As shown, the rotating handle 23 has a pre-reserved rotating groove 26, which can be used for operation. The rotating groove 26 can be a straight groove, a cross-shaped groove, or a plum blossom groove, which can be set according to the actual situation.

[0080] In this embodiment, if the signal isolator does not require the use of the guide rail 11 under certain special circumstances, it can be fixed to the mounting surface, distribution box or wall by the fixing ear 25 it is equipped with.

[0081] Specifically, such as Figure 4 and Figure 8 As shown, the fixing member 4 has a rotatable fixing ear 25 mounted on its side, and the fixing ear 25 has a pre-drilled ear hole 32. The fixing ear 25 has two legs, and the fixing member 4 has a support 28 on its side. The legs and the support 28 are hinged together by a pin 33, and there is a clearance groove 27 between the two legs. By unfolding the fixing ear 25, the entire isolator is fixed and locked to the mounting surface, distribution box, or wall of the required installation area by screws passing through the ear hole 32.

[0082] It should be noted that when the fixing ear 25 is not needed, the fixing ear 25 is folded up. Figure 1 The state shown is as follows. When needed, by turning the top of the fixed ear 25, the fixed ear 25 rotates on the support 28 via its two legs, thus unfolding. The clearance groove 27 facilitates the folding of the fixed ear 25 close to the side of the fixing member 4 without being affected by the handle 23. The pin 33 has a certain frictional force with the support 28 and the two legs, thus maintaining the folded state of the fixed ear 25 and preventing it from easily unfolding. Alternatively, permanent magnets 29 can be installed on the inner side of the fixed ear 25 and on the fixing member 4, attracting each other and keeping the fixed ear 25 folded when not in use.

[0083] In this embodiment, as Figure 6 As shown, the outer casing 1, which is formed by bolting together half-shell I2 and half-shell II3, has heat dissipation holes 30 to facilitate better heat dissipation during operation of the signal isolator. The outer casing 1 also has input / output interfaces 34 and a power indicator light (not shown in the figure).

[0084] In this embodiment, as Figures 9 to 11 As shown, the number of input and output interfaces can be designed according to actual needs, such as 1 input and 1 output, 1 input and 2 outputs, or 2 inputs and 2 outputs.

[0085] In this implementation, the input voltage signal is detected and processed by a DC / DC driver for isolation and interference suppression before being output to the control system or other instruments as one or more DC voltage signals. This isolation distributor is powered by an independent DC power supply, ensuring isolation between the power supply, input, and output.

[0086] The parts of this utility model not described are existing technologies.

[0087] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A direct current voltage signal isolator, characterized by, Comprising: A housing (1), which is formed by screwing and closing a half shell I (2) and a half shell II (3) with bolts; A fixing member (4), the top of the fixing member (4) has a slot (5) for inserting the housing (1), and the bottom of the fixing member (4) has a bottom groove (6), and the side of the housing (1) has a side groove (8); A "U"-shaped push frame (7), the bottom of the "U"-shaped push frame (7) is located in the bottom groove (6), and the bottom serves as an installation area (9) where a plate body (10) is installed; A positioning structure is provided between the "U"-shaped push frame (7) and the side groove (8) so that after the push frame (7) moves relative to the side groove (8), it is fixed relative to the housing (1), and the plate body (10) is driven by the installation area (9) to be inserted into an opening (12) in the middle of a guide rail (11) for support; Two clamping teeth (13), the two clamping teeth (13) are symmetrically and adjustably installed in the bottom groove (6) and are used for clamping on the guide rail (11).

2. A DC voltage signal isolator as claimed in claim 1, characterized in that The positioning structure includes an insertion piece (14) and a comb tooth plate (15), the top of the push frame (7) has a through groove (21), the comb tooth plate (15) is located in the side groove (8), the insertion piece (14) is inserted into the through groove (21), and the top is adaptively inserted into the tooth groove of the comb tooth plate (15).

3. A DC voltage signal isolator as claimed in claim 2, characterised in that, The inner end of the insertion piece (14) is a pointed end (16), the outer end has an anti-detachment pinch handle (20), the pointed end (16) is adapted to the tooth groove, the side of the insertion piece (14) has an outwardly convex arc-shaped elastic piece (18) and an inwardly concave arc-shaped groove (17), the arc-shaped elastic piece (18) straddles the arc-shaped groove (17) and can be received into the arc-shaped groove (17).

4. A DC voltage signal isolator as claimed in claim 3, characterised in that, The side of the insertion piece (14) also has an anti-detachment portion (19), the anti-detachment portion (19) is on the same side as the arc-shaped groove (17) and is close to the pointed end (16).

5. A DC voltage signal isolator as claimed in claim 1, characterized in that The two clamping teeth (13) change the distance between the two clamping teeth (13) through an adjustment structure.

6. A DC voltage signal isolator as described in claim 5, characterized in that, The adjustment structure includes a rotating rod (22), the rotating rod (22) is installed on the fixing member (4), and penetrates through the bottom groove (6) and the two clamping teeth (13) to drive the two clamping teeth (13) to move closer to or away from each other.

7. A DC voltage signal isolator as described in claim 6, characterized in that, The end of the rotating rod (22) has a rotating handle (23), the rotating rod (22) located in the bottom groove (6) has a thread, and there are two symmetric limiting rings (31) on the rotating rod (22) near the installation area (9).

8. A DC voltage signal isolator as described in claim 7, characterized in that, Except for the thread, other parts of the rotating rod (22) are smooth surfaces, and a guide rod (24) penetrating through the bottom groove (6) and the clamping teeth (13) is also installed on the fixing member (4), and a groove is reserved on the rotating handle (23), and the thread textures at both ends are symmetrically distributed about the axis of symmetry of the rotating rod (22).

9. A DC voltage signal isolator as described in claim 1, characterized in that, A rotatable fixing ear (25) is installed on the side of the fixing member (4), and an ear hole (32) is reserved on the fixing ear (25).

10. A DC voltage signal isolator as described in claim 9, characterized in that, The fixing ear (25) has two legs, and the side of the fixing member (4) has a support (28). The legs and the support (28) are hinged by a pin (33), and there is a clearance groove (27) between the two legs.

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