An alternating voltage transducer

Abstract

The utility model discloses an alternating voltage transmitter, its characterized in that: the base is equipped with the card slot of through from front to back, and the bottom of card slot is open setting, and the both sides symmetry of left and right are equipped with the sliding slot, and the sliding slot is transversely communicated with the card slot, and is connected with the clamping component of sliding, and the top of card slot is equipped with the compression assembly of retractable, and the end of compression assembly downward stretches into to the card slot, and relative to the left and right sliding of card slot, and the one end of clamping component is flexible and retractable in the card slot, and with the position corresponding of compression assembly. When needing to install the transmitter, the base frame is placed above the track, and the track is embedded in the card slot. Then, the clamping component slides to the middle of the card slot, the end of the clamping component extends into the card slot, and overlaps with the both sides of the bottom of the track. In turn, the compression assembly slides to the both sides of the card slot, the end of the compression assembly abuts with the both sides of the top of the track, and is longitudinally aligned with the clamping component, under the elastic force, the both sides of the track are clamped between the compression assembly and the clamping component, realizing the fixation to the both sides of the track.

Description

Technical Field

[0001] This utility model relates to the field of voltage transmitter technology, and in particular to an AC voltage transmitter. Background Technology

[0002] A transmitter is a device that converts physical measurement signals or ordinary electrical signals into standard electrical signal outputs or outputs signals via communication protocols. Voltage transmitters, in particular, convert measured AC voltage, DC voltage, or pulse voltage into a linearly proportional DC voltage or DC current output, and isolate the output analog or digital signal. They are widely used in electrical installations, automatic control, and dispatching systems. Currently, most voltage transmitters are secured to a guide rail via a slot and plate at the bottom, resulting in relatively poor installation stability.

[0003] Patent No. ZL 202120427668.X discloses a three-phase AC voltmeter transmitter. By pressing the AC voltage transmitter, a guide rail is inserted into a slot, and two clamping plates hold the guide rail in place. A clamping rail is installed in the slot, and a U-shaped elastic spring is mounted within the clamping rail. The center of the elastic spring abuts against the guide rail, thus the elastic spring and the two clamping plates work together to clamp the guide rail, improving installation stability. However, the solution mentioned in the aforementioned patent, using a center-fixing method, has a small contact area between the elastic spring and the guide rail, resulting in limited clamping force. When the transmitter rotates relative to the sides of the guide rail, it is prone to loosening, and the stability is not ideal. Summary of the Invention

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing an AC voltage transmitter.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] An AC voltage transmitter includes a housing with a cavity, a PCB board disposed inside the cavity, and a base enclosed at the bottom of the housing. The base is characterized by having a through-slot groove extending from front to back, with the bottom of the groove open and symmetrically arranged sliding grooves on the left and right sides. The sliding grooves are laterally connected to the slot and slidably connected to a clamping component. A retractable pressing component is provided at the top of the slot, with one end extending downwards into the slot and sliding left and right relative to it. One end of the clamping component is movably extended and retracted within the slot and corresponds to the position of the pressing component.

[0007] Preferably, the clamping assembly includes a clamping plate disposed in the slide groove and a clamping spring for driving the clamping plate to elastically reset. One end of the clamping plate extends into the slot and is provided with a limiting part that abuts against the outlet of the slide groove.

[0008] Preferably, the clamping plate has a left-right extending clearance groove in the middle, and a stop block is embedded in the clearance groove. The stop block is set relative to the end of the clearance groove and is fixedly connected to the slide groove. The clamping spring is connected between the stop block and the beginning of the clearance groove.

[0009] Preferably, the clamping plate has inwardly opening grooves on both sides, and the sliding groove has a corresponding lever plate. The lever plate is horizontally rotatable, and one end of the lever plate is movably engaged with the groove.

[0010] Preferably, the base is provided with a movable groove communicating with the slide, the middle part of the lever is rotatably connected to the movable groove, and is provided with a torsion spring for resetting, and the other end of the lever extends outward from the movable groove.

[0011] Preferably, the clamping assembly includes a mounting groove located above the card slot. The mounting groove is opened in the left-right direction and its bottom is connected to the card slot. A retractable pressure head is slidably connected to the mounting groove, and the end of the pressure head extends downward into the card slot.

[0012] Preferably, a movable box is slidably connected in the mounting groove, the pressure head is embedded in the movable box and slidably connected perpendicularly to the movable box, and a clamping spring is provided between the pressure head and the movable box.

[0013] Preferably, the sidewall of the mounting groove is provided with a slide rail extending to the left and right, and the movable box is provided with a hand-held block corresponding to the slide rail. The slide rail is arranged to run through the front and back and is slidably connected to the hand-held block, with the hand-held block extending outward relative to the slide rail.

[0014] This utility model has the following beneficial effects:

[0015] This invention, by setting up a clamping component and a pressing component, allows for the installation of a transmitter. The base is placed above the track, which is then fitted into a slot. The clamping component slides towards the center of the slot, its end extending into the slot and overlapping with the two sides of the track bottom to support it. Next, the pressing component slides towards both sides of the slot, its end abutting against the two sides of the track top and longitudinally aligned with the clamping component. Under elastic force, the two sides of the track are clamped between the pressing and clamping components, thus fixing the track to its proper position. Compared to conventional center-fixing methods, this method offers greater clamping force and stronger stability, effectively preventing loosening. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the state of the AC voltage transmitter described in this utility model. Figure 1

[0017] Figure 2 This is a schematic diagram of the state of the AC voltage transmitter described in this utility model. Figure 2

[0018] Figure 3This is a schematic diagram of the AC voltage transmitter described in this utility model.

[0019] Figure 4 This is a schematic diagram of the clamping assembly described in this utility model.

[0020] Figure 5 This is a schematic diagram of the structure of the clamping assembly described in this utility model.

[0021] Figure description: 1. Outer shell; 2. Base; 3. Slot; 4. Slide groove; 5. Rail; 6. Clamping plate; 7. Clamping spring; 8. Limiting part; 9. Clearance groove; 10. Stop block; 11. Groove; 12. Toggle plate; 13. Movable groove; 14. Mounting groove; 15. Press head; 16. Movable box; 17. Compression spring; 18. Slide rail; 19. Hand block. Detailed Implementation

[0022] 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.

[0023] Reference Figures 1 to 5 One embodiment provided by this utility model:

[0024] An AC voltage transmitter includes a housing 1 with a cavity, a PCB board disposed inside the cavity, and a base 2 enclosed at the bottom of the housing 1. The base 2 is characterized in that: the base 2 is provided with a through slot 3, the bottom of the slot 3 is open, and the left and right sides are symmetrically provided with sliding grooves 4, the sliding grooves 4 are laterally connected to the slot 3 and are slidably connected with clamping components, the top of the slot 3 is provided with a retractable pressing component, the end of the pressing component extends downward into the slot 3 and slides left and right relative to the slot 3, and one end of the clamping component is movable and retractable in the slot 3 and corresponds to the position of the pressing component.

[0025] The outer casing 1 has a downward-opening cavity. A PCB board is installed inside the cavity and has a port for connecting to the outside. The base 2 is installed at the bottom of the outer casing 1 and closes the opening of the cavity. The slot 3 is located at the bottom of the base 2, relative to the center of the base 2, and is arranged through the front and back. The slot 3 has a U-shaped groove structure and an open bottom for installation and fixation with the track 5. The track 5 has a Z-shaped structure with a low center and high sides, and the center and sides are transitioned by a slope. The slide 4 is opened inside the base 2 and is symmetrically distributed on the left and right sides of the slot 3. The slide 4 has a T-shaped groove structure and is arranged through the left and right direction. One end of the slide 4 is laterally connected to the slot 3, and the other end of the slide 4 is connected to the outside. The clamping component is installed in the slide 4 and is slidably connected to the slide 4. One end of the clamping component is movable and retractable inside the slot 3 as a clamping part, and the other end of the clamping component extends outward from the slide 4 as a hand grip. The clamping component is located at the top of the slot 3 and is embedded in the base 2. It is telescopic and can move elastically in the vertical direction. The end of the clamping component extends downward into the slot 3 and slides left and right relative to the slot 3.

[0026] This invention, by setting up a clamping component and a pressing component, allows for the installation of a transmitter. The base 2 is placed above the track 5, which is embedded in the slot 3. The clamping component then slides towards the center of the slot 3, its end extending into the slot 3 and overlapping with the two sides of the bottom of the track 5, providing support. Next, the pressing component slides towards both sides of the slot 3, its end abutting against the two sides of the top of the track 5 and longitudinally aligned with the clamping component. Under elastic force, the two sides of the track 5 are clamped between the pressing component and the clamping component, thus fixing the two sides of the track 5. Compared to conventional center-fixing methods, this method offers greater clamping force and stronger stability, effectively preventing loosening.

[0027] In this embodiment, preferably, the clamping assembly includes a clamping plate 6 disposed in the slide groove 4 and a clamping spring 7 for driving the clamping plate 6 to elastically reset. One end of the clamping plate 6 extends into the slot 3 and is provided with a limiting part 8 that abuts against the outlet of the slide groove 4.

[0028] The clamping plate 6 is a long strip structure, arranged in the left-right direction, and is embedded in the slide groove 4, sliding left and right along the slide groove 4. The clamping spring 7 is installed in the left-right direction, with one end connected to the clamping plate 6 and the other end fixed, driving the clamping plate 6 to elastically return to its original position. One end of the clamping plate 6 extends into the slot 3 and is provided with a limiting part 8, which movably abuts against the outlet of the slide groove 4 to prevent the clamping plate 6 from disengaging from the slot 3. The other end of the clamping plate 6 extends outward from the slot 3, allowing the operator to pull it by hand. In the initial state, the clamping spring 7 presses against the clamping plate 6, and the clamping plate 6 extends into the slot 3, closing part of the opening of the slot 3. When the transmitter needs to be installed, pull the clamp 6 to slide along the slot 3. The clamping spring 7 is compressed, the slot 3 is fully opened, and after the slot 3 is engaged with the rail 5, the clamp 6 is released. Under the action of the clamping spring 7, the clamp 6 is reinserted into the slot 3 and overlaps with the two sides of the bottom of the rail 5 to support the bottom of the rail 5.

[0029] In this embodiment, preferably, the clamping plate 6 is provided with a left-right extending clearance groove 9 in the middle, and a stop block 10 is embedded in the clearance groove 9. The stop block 10 is disposed relative to the end of the clearance groove 9 and is fixedly connected to the slide groove 4. The clamping spring 7 is connected between the stop block 10 and the beginning of the clearance groove 9.

[0030] The clearance groove 9 is located in the middle of the clamping plate 6, and is vertically through-hole, extending in the left-right direction. The stop block 10 is embedded in the clearance groove 9 and slidably connected to it. The clearance groove 9 has one end near the slot 3 as its starting point and the other end away from the slot 3 as its ending point. The stop block 10 is positioned relative to the end of the clearance groove 9 and is fixedly connected to the slide groove 4, used to limit the travel of the clamping plate 6. The clamping spring 7 is horizontally installed in the clearance groove 9, with one end connected to the stop block 10 and the other end connected to the starting point of the clearance groove 9. Initially, the clamping spring 7 is relaxed and presses against the clamping plate 6, causing the clamping plate 6 to extend into the slot 3. When installing the transmitter, the clamping plate 6 is pulled along the slot 3, compressing the clamping spring 7. After the slot 3 engages with the rail 5, the clamping plate 6 is released, and under the action of the clamping spring 7, the clamping plate 6 re-extends into the slot 3.

[0031] In this embodiment, preferably, the clamping plate 6 has inwardly opening grooves 11 on both sides, and the slide 4 has a lever 12 corresponding to the groove 11. The lever 12 is horizontally rotatable, and one end of the lever 12 is movably engaged with the groove 11.

[0032] The grooves 11 are inwardly oriented and symmetrically distributed on both sides of the clamping plate 6, positioned relative to the front-rear direction of the clamping plate 6. The lever 12 is positioned near the side wall of the slide groove 4 and is horizontally rotatable, matching the groove 11. When installing the transmitter, the clamping plate 6 is pulled along the slot 3, compressing the clamping spring 7 until the clamping plate 6 is pulled to its maximum stroke, the slot 3 is fully open, and the groove 11 and lever 12 are aligned. By rotating the lever 12 forward, the end of the lever 12 engages with the groove 11, eliminating the need for the operator to maintain the clamping plate 6 in a pulled state for an extended period. Conversely, by rotating the lever 12 in the reverse direction, the end of the lever 12 separates from the groove 11, and under the action of the clamping spring 7, the clamping plate 6 re-enters the slot 3, improving operational convenience.

[0033] In this embodiment, preferably, the base 2 is provided with a movable groove 13 that communicates with the slide groove 4, the middle part of the dial plate 12 is rotatably connected to the movable groove 13, and is provided with a torsion spring for resetting, and the other end of the dial plate 12 extends outward from the movable groove 13.

[0034] The movable groove 13 is located on the base 2, at the same horizontal level as the slide 4, and has a cavity for the rotation of the lever 12. The cavity can be composed of two centrally symmetrical fan-shaped structures, providing clearance space for both ends of the lever 12. The movable groove 13 is through-type, with one end connected to the slide 4 and the other end connected to the outside. The middle part of the lever 12 is rotatably connected to the movable groove 13, rotating horizontally, and is equipped with a torsion spring, giving the lever 12 a rotational reset function. The lever 12 has its inner end closer to the slide 4 and its outer end farther from the slide 4. In the initial state, the clamping plate 6 extends into the slot 3, the inner end of the lever 12 separates from the groove 11, and under the action of the torsion spring, the inner end of the lever 12 abuts against the side wall of the clamping plate 6, while the outer end of the lever 12 is hidden in the movable groove 13. When the transmitter needs to be installed, pull the clamp 6 along the slot 3 until the clamp 6 is pulled to the maximum stroke, the slot 3 is fully opened, the groove 11 corresponds to the position of the lever 12, the inner end of the lever 12 is pressed into the groove 11 by the torsion spring, the inner end of the lever 12 is engaged with the groove 11, and the outer end of the lever 12 extends outward from the movable slot 13. By moving the lever 12, the engagement between the lever 12 and the groove 11 can be released, which can play the role of a toggle switch.

[0035] In this embodiment, preferably, the clamping assembly includes a mounting groove 14 located above the slot 3. The mounting groove 14 is opened in the left-right direction and its bottom is connected to the slot 3. A retractable pressure head 15 is slidably connected to the mounting groove 14, and the end of the pressure head 15 extends downward into the slot 3.

[0036] The mounting groove 14 is located above the slot 3, arranged in the left-right direction, and is a U-shaped groove structure with an opening facing downwards. The bottom of the mounting groove 14 is connected to the slot 3. The pressure head 15 is installed in the mounting groove 14 and slides left and right along the direction of the mounting groove 14. The end of the pressure head 15 extends downwards into the slot 3. The pressure head 15 is movable and telescopic. It can be that a spring is installed on the top of the pressure head 15, which enables it to extend vertically and at the same time provides downward clamping force to the pressure head 15. After the end of the clamping assembly overlaps with the two sides of the bottom of the track 5, the pressure head 15 slides relative to the mounting groove 14 and moves towards the sides of the track 5 until it is longitudinally aligned with the clamping assembly. Under the elastic force, the pressure head 15 presses down on the track 5, so that the two sides of the track 5 are clamped between the clamping assembly and the clamping assembly.

[0037] In this embodiment, preferably, a movable box 16 is slidably connected in the mounting groove 14, and a pressure head 15 is embedded in the movable box 16 and slidably connected to the movable box 16 perpendicularly. A compression spring 17 is provided between the pressure head 15 and the movable box 16.

[0038] The movable box 16 is located within the mounting groove 14 and slides left and right along the direction of the mounting groove 14. The movable box 16 has a downward-opening cavity, and the pressure head 15 is embedded in the movable box 16. The clamping spring 17 is located between the pressure head 15 and the movable box 16. The pressure head 15 and the movable box 16 slide relative to each other to achieve vertical extension and retraction. After the end of the clamping assembly overlaps with the two sides of the bottom of the track 5, the movable box 16 moves to the sides of the track 5, driving the pressure head 15 to move to the sides of the track 5 until the pressure head 15 is longitudinally aligned with the clamping assembly. Under the action of the clamping spring 17, the pressure head 15 presses down on the track 5, so that the two sides of the track 5 are clamped between the clamping assembly and the clamping assembly.

[0039] In this embodiment, preferably, the side wall of the mounting groove 14 is provided with a slide rail 18 extending to the left and right, and the movable box 16 is provided with a hand block 19 corresponding to the slide rail 18. The slide rail 18 is arranged to pass through from front to back and is slidably connected to the hand block 19. The hand block 19 extends outward relative to the slide rail 18.

[0040] The slide rail 18 is located on the side wall of the mounting groove 14, positioned relative to the front and rear sides of the base 2, and extends to the left and right. The slide rail 18 is a through-type design, with one side of the slide rail 18 communicating with the interior of the mounting groove 14 and the other side communicating with the outside. The hand-held block 19 is located on the outside of the movable box 16, matching the slide rail 18 and slidingly connected to it. One end of the hand-held block 19 is fixedly connected to the movable box 16, and the other end of the hand-held block 19 passes through the slide rail 18 and extends outward, allowing the operator to manually operate it. After the end of the clamping component overlaps with the two sides of the bottom of the track 5, the operator moves the hand-held block 19, causing the movable box 16 to move towards the sides of the track 5 until the pressure head 15 is longitudinally aligned with the clamping component. Under the action of the pressure spring 17, the pressure head 15 presses down on the track 5, clamping the two sides of the track 5 between the pressure component and the clamping component, improving the ease of operation.

[0041] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An AC voltage transmitter, comprising a housing with a cavity, a PCB board disposed inside the cavity, and a base enclosed at the bottom of the housing, characterized in that: The base has a through slot, the bottom of which is open, and symmetrical sliding grooves on the left and right sides. The sliding grooves are laterally connected to the slot and are slidably connected to a clamping component. The top of the slot has a retractable pressing component. The end of the pressing component extends downward into the slot and slides left and right relative to the slot. One end of the clamping component is movable and retractable in the slot and corresponds to the position of the pressing component.

2. The AC voltage transmitter according to claim 1, characterized in that: The clamping assembly includes a clamping plate disposed in the slide groove and a clamping spring for driving the clamping plate to elastically reset. One end of the clamping plate extends into the slot and is provided with a limiting part that abuts against the outlet of the slide groove.

3. An AC voltage transmitter according to claim 2, characterized in that: The clamping plate has a left-right extending clearance groove in the middle, and a stop block is embedded in the clearance groove. The stop block is set relative to the end of the clearance groove and is fixedly connected to the slide groove. The clamping spring is connected between the stop block and the beginning of the clearance groove.

4. An AC voltage transmitter according to claim 3, characterized in that: The clamping plate has inwardly opening grooves on both sides, and the sliding groove has a corresponding lever plate. The lever plate is horizontally rotatable, and one end of the lever plate is movably engaged with the groove.

5. An AC voltage transmitter according to claim 4, characterized in that: The base is provided with a movable groove that communicates with the slide groove. The middle part of the lever is rotatably connected to the movable groove and is provided with a torsion spring for resetting. The other end of the lever extends outward from the movable groove.

6. An AC voltage transmitter according to claim 1, characterized in that: The clamping assembly includes a mounting groove located above the card slot. The mounting groove is opened in the left-right direction and its bottom is connected to the card slot. A retractable pressure head is slidably connected to the mounting groove, and the end of the pressure head extends downward into the card slot.

7. An AC voltage transmitter according to claim 6, characterized in that: A movable box is slidably connected in the mounting groove. The pressure head is embedded in the movable box and slidably connected perpendicularly to the movable box. A clamping spring is provided between the pressure head and the movable box.

8. An AC voltage transmitter according to claim 7, characterized in that: The mounting groove sidewall is provided with a slide rail extending to the left and right, and the movable box is provided with a hand-held block corresponding to the slide rail. The slide rail is arranged to run through the front and back and is slidably connected to the hand-held block. The hand-held block extends outward relative to the slide rail.

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