Inverter output voltage detection device

Abstract

The utility model discloses an inverter output voltage detection device, which relates to the technical field of voltage detection and comprises a universal meter. A portable part is arranged on one side of the universal meter, and the portable part is used for binding the universal meter on the arm of an operator for operation; the portable component comprises a cover shell and a bottom shell, the cover shell is fixedly connected to one side of the universal meter, the cover shell and the bottom shell are directly connected through screws to form a complete box body, and a binding belt used for binding the universal meter is arranged in the box body. According to the utility model, the portable part is arranged, so that the universal meter can be conveniently bound on an arm for operation by using the binding belt, and when the output voltage of the inverter is detected, the detection head can be respectively operated by two hands, and meanwhile, the voltage condition can be intuitively observed; therefore, the problem that the operation is inconvenient under the condition that the installation environment of the inverter is complex is avoided, and the detection of the voltage at the output end of the inverter is greatly facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of voltage detection, in particular to an inverter output voltage detection device. Background Art

[0002] An inverter is a power conversion device whose main function is to convert direct current into alternating current. This conversion is very necessary in many applications, such as where there is no stable AC power supply, or where DC power needs to be converted into AC power to drive certain devices. The output voltage of the inverter is usually detected using a multimeter or oscilloscope.

[0003] Some inverters have multiple output ports or lamp connectors, which need to be tested one by one to ensure that the output voltage of each port is within the normal range. The testing process requires the use of the two test heads of the multimeter to contact the positive and negative poles of the output terminal.

[0004] However, when using a multimeter for testing, we need to hold the test head with both hands to touch the positive and negative poles of the inverter, which means that we cannot hold the multimeter itself at the same time. Ideally, we can place the multimeter on a stable platform so that both hands can perform the test operation freely, but the installation environment of the inverter may not be convenient for placement. For example, the inverter is installed in a narrow space or is surrounded by other equipment, which makes it extremely difficult to find a suitable platform to place the multimeter. In addition, the multimeter has to be picked up and put down frequently during the test process, which not only increases the complexity of the operation, but also greatly reduces work efficiency. Utility Model Content

[0005] The purpose of the utility model is to provide an inverter output voltage detection device to solve the problems raised in the above background technology.

[0006] In order to solve the above technical problems, the technical solution adopted by the utility model is:

[0007] An inverter output voltage detection device comprises a multimeter; a portable component is arranged on one side of the multimeter, and the portable component is used to tie the multimeter to the arm of an operator for operation; the portable component comprises a cover shell and a bottom shell, the cover shell is fixedly connected to one side of the multimeter, the cover shell and the bottom shell are directly connected by screws to form a complete box body, a strap for tying the multimeter is arranged inside the box body, and a retractable assembly is arranged inside the box body, and the retractable assembly is used to reel in or release the strap.

[0008] By adopting the above technical solution, by setting up a portable component, it is convenient to use a strap to tie the multimeter to the arm for operation, so that when detecting the output voltage of the inverter, the detection head can be operated with both hands respectively, and the voltage situation can be observed intuitively, thereby avoiding the problem of inconvenient operation when the inverter installation environment is complex.

[0009] A further improvement of the technical solution of the utility model is that the retractable assembly includes a fixing pin, which is fixedly connected to the bottom of the inner wall of the bottom shell, a spring is wound around the outer side of the fixing pin, one end of the spring is fixedly connected to the fixing pin, and the other end of the spring is fixedly connected to the strap, and a limit ring is fixedly connected to one side of the cover shell and the inner wall of the bottom shell, and a notch is provided on the limit ring.

[0010] By adopting the above technical solution, it is convenient to pull the strap to put the mainspring into a compressed state, and after releasing it, the strap can be retracted along with the resetting of the mainspring, thereby realizing automatic winding.

[0011] A further improvement of the technical solution of the utility model is that a winding opening is opened on one side of the cover shell and the bottom shell, the end of the strap away from the spring extends to the outside of the box body through the winding opening and is fixedly connected with a male buckle, the side of the bottom shell away from the winding opening is fixedly connected with a female buckle, a positioning component is arranged inside the male buckle, and a card slot is opened on one side of the female buckle.

[0012] By adopting the above technical solution, it is convenient to quickly connect the male buckle and the female buckle through the positioning component, so that the strap can form a bracelet structure to bind the multimeter to the arm.

[0013] A further improvement of the technical solution of the utility model is that: the positioning component includes a slide groove, which is symmetrically opened inside the male buckle, and a connecting groove communicated with the inside of the slide groove is opened on the side of the male buckle away from the strap, a slider is slidably connected between the inner wall of the slide groove, a spring is fixedly connected between the slider and one side of the inner wall of the slide groove, a buckle is fixedly connected to one side of the slider, and the side of the buckle away from the slider extends to the outside of the male buckle through the connecting groove, the slot and the buckle are both set to L shape, the buckle and the slot are used in conjunction with each other, buttons are symmetrically slidably connected on both sides of the male buckle, one end of the button extends to the inside of the slide groove and is fixedly connected to one side of the slider.

[0014] By adopting the above technical solution, it is convenient to utilize the corner part of the L-shaped structure of the buckle to fit with the corner part of the L-shaped structure of the slot to achieve rapid engagement and disassembly.

[0015] A further improvement of the technical solution of the utility model is that a slope is provided on one side of the buckle.

[0016] By adopting the above technical solution, when the male buckle and the female buckle are docked, one side of the buckle belt slope squeezes the slot, and the buckle can automatically move to the closer side, so that the buckle can be smoothly inserted into the slot.

[0017] A further improvement of the technical solution of the utility model is that a sleeve shell is fixedly connected between the inner walls of the winding opening on the bottom shell, and two guide rollers are rotatably connected between the inner walls of the sleeve shell.

[0018] By adopting the above technical solution, the direction of the strap can be adjusted and corrected during the strap retraction process before being rolled up, thereby preventing entanglement during rolling up.

[0019] A further improvement of the technical solution of the utility model is that: a stop plate is fixedly connected to one side of the inner wall of the bottom shell, two limit strips are fixedly connected to one side of the cover shell and the inner wall of the bottom shell, a screw is threadedly connected to one side of the bottom shell, one end of the screw extends to the inside of the bottom shell and is rotatably connected to a pressure plate, the pressure plate is slidably connected to the side close to the limit strip, a knob is fixedly connected to the end of the screw away from the pressure plate, and a rubber pad is provided on the side of the pressure plate away from the screw.

[0020] By adopting the above technical solution, the screw is rotated by turning the knob, so that the pressure plate presses the strap tightly, and the strap will not be stretched during operation; the pressure plate is moved away from the strap by turning the knob, and the strap can be pulled out.

[0021] Due to the adoption of the above technical solution, the utility model has achieved the following technical progress compared with the prior art:

[0022] 1. The utility model provides an inverter output voltage detection device. By arranging a portable component, it is convenient to use a strap to tie the multimeter to the arm for operation. Therefore, when detecting the inverter output voltage, the detection head can be operated with both hands respectively, and the voltage situation can be observed intuitively, thereby avoiding the problem of inconvenient operation when the inverter is installed in a complex environment, and greatly facilitating the detection of the inverter output voltage.

[0023] 2. The utility model provides an inverter output voltage detection device. By setting a pressure plate, the screw can be rotated by turning the knob during operation, so that the pressure plate presses the strap tightly, and the strap will not be stretched during operation; when the strap is retracted or released, the pressure plate can be moved away from the strap by turning the knob, so that the strap can be pulled out. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The utility model will be further described below in conjunction with the accompanying drawings.

[0025] Figure 1 This is one of the overall structural diagrams of the utility model;

[0026] Figure 2 This is the second schematic diagram of the overall structure of the utility model;

[0027] Figure 3This is the third schematic diagram of the overall structure of the utility model;

[0028] Figure 4 This is a schematic diagram of the disassembly of the cover shell and the bottom shell of the utility model;

[0029] Figure 5 It is a cross-sectional schematic diagram of the male buckle of the utility model;

[0030] Figure 6 This is a schematic diagram of the internal structure of the bottom shell of the utility model;

[0031] In the figure: 1. multimeter; 21. cover shell; 22. bottom shell; 23. limit ring; 24. winding mouth; 31. fixing pin; 32. spring; 33. strap; 41. male buckle; 42. female buckle; 43. slot; 51. slide slot; 52. connecting slot; 53. spring; 54. slider; 55. buckle; 56. button; 61. sleeve shell; 62. guide roller; 71. limit strip; 72. screw; 73. pressure plate; 74. stop plate; 75. knob. DETAILED DESCRIPTION

[0032] The present invention is further described in detail below in conjunction with the embodiments:

[0033] Example 1

[0034] like Figure 2 and Figure 3 As shown, the utility model provides an inverter output voltage detection device, including a multimeter 1; a portable component is provided on one side of the multimeter 1, and the portable component is used to tie the multimeter 1 to the arm of an operator for operation; the portable component includes a cover shell 21 and a bottom shell 22, the cover shell 21 is fixedly connected to one side of the multimeter 1, the cover shell 21 and the bottom shell 22 are directly connected by screws to form a complete box body, the interior of the box body is provided with a strap 33 for tying the multimeter 1, and the interior of the box body is provided with a retractable component, and the retractable component is used to reel in or release the strap 33.

[0035] In this embodiment, by providing a portable component, it is convenient to use the strap 33 to tie the multimeter 1 to the arm for operation, so that when the inverter output voltage is detected, the detection head can be operated with both hands respectively, and the voltage situation can be observed intuitively, thereby avoiding the problem of inconvenient operation when the inverter installation environment is complex, and greatly facilitating the detection of the inverter output voltage.

[0036] Example 2

[0037] like Figure 3 and Figure 4As shown, on the basis of Example 1, the utility model provides a technical solution: preferably, the retractable assembly includes a fixing pin 31, the fixing pin 31 is fixedly connected to the bottom of the inner wall of the bottom shell 22, a spring 32 is wound around the outer side of the fixing pin 31, one end of the spring 32 is fixedly connected to the fixing pin 31, and the other end of the spring 32 is fixedly connected to the strap 33, and a limiting ring 23 is fixedly connected to one side of the inner wall of the cover shell 21 and the bottom shell 22, and a notch is provided on the limiting ring 23.

[0038] In this embodiment, the strap 33 is pulled to compress the mainspring 32 , and after being released, the strap 33 can be retracted along with the resetting of the mainspring 32 , thereby achieving automatic winding.

[0039] Example 3

[0040] like Figure 3 and Figure 4 As shown, on the basis of Example 2, the utility model provides a technical solution: preferably, a winding port 24 is opened on one side of the cover shell 21 and the bottom shell 22, the end of the strap 33 away from the spring 32 extends to the outside of the box body through the winding port 24 and is fixedly connected with a male buckle 41, and the side of the bottom shell 22 away from the winding port 24 is fixedly connected with a female buckle 42, a positioning assembly is arranged inside the male buckle 41, and a card slot 43 is opened on one side of the female buckle 42.

[0041] In this embodiment, the male buckle 41 and the female buckle 42 can be quickly connected through the positioning assembly, so that the strap 33 can form a bracelet structure to tie the multimeter 1 to the arm.

[0042] like Figure 3 and Figure 4 As shown, preferably, the positioning assembly includes a slide groove 51, which is symmetrically opened inside the male buckle 41, and a connecting groove 52 communicating with the inside of the slide groove 51 is opened on the side of the male buckle 41 away from the strap 33, a slider 54 is slidably connected between the inner wall of the slide groove 51, a spring 53 is fixedly connected between the slider 54 and one side of the inner wall of the slide groove 51, and a buckle 55 is fixedly connected to one side of the slider 54, and the side of the buckle 55 away from the slider 54 extends to the outside of the male buckle 41 through the connecting groove 52, the slot 43 and the buckle 55 are both set to L-shape, and the buckle 55 is used in conjunction with the slot 43, and buttons 56 are symmetrically slidably connected on both sides of the male buckle 41, and one end of the button 56 extends to the inside of the slide groove 51 and is fixedly connected to one side of the slider 54.

[0043] In this embodiment, the corner portion of the L-shaped structure of the buckle 55 is conveniently matched with the corner portion of the L-shaped structure of the slot 43 to achieve rapid engagement and disassembly.

[0044] like Figure 4 and Figure 5As shown, preferably, one side of the buckle 55 is provided with an inclined surface.

[0045] In this embodiment, when the male buckle 41 and the female buckle 42 are docked, the inclined side of the buckle 55 squeezes the slot 43, so that the buckle 55 automatically moves to the closer side, so that the buckle 55 can be smoothly inserted into the slot 43.

[0046] like Figure 1-5 As shown, preferably, a sleeve shell 61 is fixedly connected between the inner walls of the winding opening 24 on the bottom shell 22, and two guide rollers 62 are rotatably connected between the inner walls of the sleeve shell 61.

[0047] In this embodiment, the direction of the strap 33 can be adjusted and corrected during the retraction process before being rolled up, so as to prevent entanglement during the rolling up.

[0048] Example 4

[0049] like Figure 1 and Figure 2 As shown, on the basis of Example 3, the utility model provides a technical solution: preferably, a side of the inner wall of the bottom shell 22 is fixedly connected with a counter plate 74, one side of the inner wall of the cover shell 21 and the bottom shell 22 are fixedly connected with two limit strips 71, one side of the bottom shell 22 is threadedly connected with a screw rod 72, one end of the screw rod 72 extends to the interior of the bottom shell 22 and is rotatably connected with a pressure plate 73, the pressure plate 73 is slidably connected to the side close to the limit strip 71, the end of the screw rod 72 away from the pressure plate 73 is fixedly connected with a knob 75, and a rubber pad is provided on the side of the pressure plate 73 away from the screw 72.

[0050] In this embodiment, the screw rod 72 is rotated by turning the knob 75 so that the pressure plate 73 presses the strap 33, and the strap 33 will not be stretched during operation; the pressure plate 73 is moved away from the strap 33 by turning the knob 75 so that the strap 33 can be pulled out.

[0051] The working principle of the inverter output voltage detection device is described in detail below.

[0052] like Figure 1-6As shown, when the output voltage of the inverter is detected, the knob 75 is rotated to make the pressure plate 73 away from the strap 33, and the strap 33 can be pulled out, so that the spring 32 is in a compressed state, and the pulled strap 33 is wrapped around the arm, and the male buckle 41 and the female buckle 42 are clamped. The specific operation is to insert the buckle 55 into the slot 43. During the insertion process, the side of the buckle 55 with the inclined surface contacts the slot 43 and automatically moves to the side close to it, thereby making the slider 54 move to the side close to it and squeeze the spring. 53, make the buckle 55 fully inserted into the slot 43, at this time the corner of the buckle 55 fits with the slot 43, so that the spring 53 rebounds and pushes the slider 54 and the buckle 55 to reset, and the engagement is completed, and the multimeter 1 can be worn for operation. After wearing, the screw 72 can be rotated by rotating the knob 75, so that the pressure plate 73 presses the strap 33, and then the strap 33 will not be stretched during operation. At this time, the two detection heads can be operated by the left and right hands respectively to detect the positive and negative poles of the inverter, which greatly facilitates the actual operation;

[0053] When removing, the knob 75 is rotated to move the pressure plate 73 away from the strap 33, and the buttons 56 on both sides are pressed to move the slider 54 toward the side that is closer to each other and squeeze the spring 53, while driving the buckle 55 to move and disengage from the connection with the slot 43. At this time, the strap 33 will be reset under the rebound of the spring 32, and the strap 33 can be used normally by hand in the retracted state.

[0054] The above generally describes the present invention in detail, but it is obvious to a person skilled in the art that some modifications or improvements can be made to the present invention. Therefore, modifications or improvements that do not deviate from the spirit of the present invention are within the scope of protection of the present invention.

Claims

1. An inverter output voltage detection device, comprising a multimeter (1); characterized in that: A portable component is provided on one side of the multimeter (1), and the portable component is used to tie the multimeter (1) to the arm of an operator for operation; The portable component comprises a cover shell (21) and a bottom shell (22); the cover shell (21) is fixedly connected to one side of the multimeter (1); the cover shell (21) and the bottom shell (22) are directly connected by screws to form a complete box body; a strap (33) for tying the multimeter (1) is arranged inside the box body; a retractable assembly is arranged inside the box body; the retractable assembly is used to retract or release the strap (33).

2. The inverter output voltage detection device according to claim 1, characterized in that: The retractable assembly comprises a fixing pin (31), the fixing pin (31) is fixedly connected to the bottom of the inner wall of the bottom shell (22), a spring (32) is wound around the outer side of the fixing pin (31), one end of the spring (32) is fixedly connected to the fixing pin (31), and the other end of the spring (32) is fixedly connected to a strap (33), and a limiting ring (23) is fixedly connected to one side of the inner wall of the cover shell (21) and the bottom shell (22), and a notch is provided on the limiting ring (23).

3. The inverter output voltage detection device according to claim 2, characterized in that: A winding opening (24) is provided on one side of the cover shell (21) and the bottom shell (22); one end of the strap (33) away from the mainspring (32) extends to the outside of the box body through the winding opening (24) and is fixedly connected with a male buckle (41); a side of the bottom shell (22) away from the winding opening (24) is fixedly connected with a female buckle (42); a positioning assembly is provided inside the male buckle (41); and a card slot (43) is provided on one side of the female buckle (42).

4. The inverter output voltage detection device according to claim 3, characterized in that: The positioning assembly comprises a slide groove (51), wherein the slide groove (51) is symmetrically arranged inside the male buckle (41), and a connecting groove (52) communicating with the inside of the slide groove (51) is arranged on a side of the male buckle (41) away from the strap (33), and a slider (54) is slidably connected between the inner walls of the slide groove (51), and a spring (53) is fixedly connected between the slider (54) and one side of the inner wall of the slide groove (51), and one side of the slider (54) is fixedly connected A buckle (55) is provided, and a side of the buckle (55) away from the slider (54) extends to the outside of the male buckle (41) through the connecting groove (52), the slot (43) and the buckle (55) are both arranged in an L shape, the buckle (55) and the slot (43) are used in conjunction with each other, and buttons (56) are symmetrically slidably connected on both sides of the male buckle (41), and one end of the button (56) extends to the inside of the slide groove (51) and is fixedly connected to one side of the slider (54).

5. The inverter output voltage detection device according to claim 4, characterized in that: One side of the buckle (55) is provided with an inclined surface.

6. The inverter output voltage detection device according to claim 5, characterized in that: A sleeve shell (61) is fixedly connected between the inner walls of the winding opening (24) on the bottom shell (22), and two guide rollers (62) are rotatably connected between the inner walls of the sleeve shell (61).

7. The inverter output voltage detection device according to claim 6, characterized in that: One side of the inner wall of the bottom shell (22) is fixedly connected with a stop plate (74); one side of the inner wall of the cover shell (21) and the bottom shell (22) are fixedly connected with two limit bars (71); one side of the bottom shell (22) is threadedly connected with a screw rod (72); one end of the screw rod (72) extends into the interior of the bottom shell (22) and is rotatably connected with a pressure plate (73); the pressure plate (73) is slidably connected with a side close to the limit bar (71); one end of the screw rod (72) away from the pressure plate (73) is fixedly connected with a knob (75); and a rubber pad is provided on the side of the pressure plate (73) away from the screw rod (72).

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