Measurement conversion assembly and universal meter
By designing a combination of conductive rings and conductive components, the problem of equipment damage caused by the failure to promptly open the red probe socket in the use of digital multimeters was solved, achieving convenient switching of test circuits and cost reduction.
Patent Information
- Application Number
- CN202422857310.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-21
- Publication Date
- 2025-10-24
- Estimated Expiration
- 2034-11-21
AI Technical Summary
When using a digital multimeter, users may forget to insert the red probe into different input jacks, which can damage the device.
Design a measurement conversion component, including a conductive ring and a conductive element. By moving the conductive element along the circumference of the conductive ring, the electronic component under test can be electrically connected to different test circuits of a multimeter, thus avoiding the need to insert the red probe into different jacks.
This technology enables seamless switching between different test circuits without changing the jacks, preventing damage to digital multimeters due to improper jack operation and reducing production costs.
Smart Images
Figure CN223471078U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the technical field of multimeter, concretely relates to a kind of measurement conversion assembly and multimeter. BACKGROUND
[0002] The measurement principle of digital multimeter is: using a sensitive magnetoelectric type DC ammeter (microammeter) as the meter head, when small current passes through the meter head, there will be current indication, and the current reading will be displayed on the display screen of digital multimeter, but since the meter head cannot pass large current, when the electronic component to be measured is connected to the digital multimeter, some resistors need to be connected in series or parallel to the meter head to shunt or step down the electronic component to be measured, to avoid excessive current flowing into the meter head.
[0003] The traditional digital multimeter has four measurement input jacks, the first input jack is the common terminal for inserting the black probe; the second input jack is the AC and DC voltage, resistance, capacitance, diode, diode, triode, on-off test and temperature test jack; the third input jack is the 20A AC and DC current input jack; the fourth input jack is the AC and DC mA, μA current input jack. When measuring voltage, the red probe is inserted into the second input jack, and the electronic component to be measured is connected to the first test circuit; when measuring large current, the red probe is inserted into the third input jack, and the electronic component to be measured is connected to the second test circuit; when measuring small current, the red probe is inserted into the fourth input jack, and the electronic component to be measured is connected to the third test circuit; wherein, the first test circuit, the second test circuit and the third test circuit each include a plurality of resistors with different resistance values, the first test circuit and the meter head are connected in parallel, and the second test circuit and the third test circuit are connected in series with the meter head.
[0004] However, when the digital multimeter measures different physical quantities of the electronic component to be measured, the user often forgets to insert the red probe into different input jacks, resulting in damage to the digital multimeter. UTILITY MODEL CONTENT
[0005] The main purpose of the utility model is to provide a measurement conversion assembly and multimeter, to solve the problem that the red probe is not switched in time when using the digital multimeter in the prior art, resulting in damage to the digital multimeter.
[0006] In order to achieve the above object, according to one aspect of the present application, a kind of measurement conversion components is provided, suitable for multimeter, measurement conversion component includes: conductive ring, conductive ring includes three conductive ring segments, three conductive ring segments are spaced apart along the circumferential direction of conductive ring, any two conductive ring segments are provided with insulating gap, three conductive ring segments are electrically connected with the first gear test circuit, second gear test circuit and third gear test circuit of multimeter respectively;First electrically conductive part, first electrically conductive part and the electronic component to be measured are electrically connected, first electrically conductive part is movably arranged along the circumferential direction of conductive ring, to make first electrically conductive part electrically connected with three conductive ring segments respectively.
[0007] Further, the measurement conversion component further includes: second electrically conductive part and first connecting line, one end of first connecting line and second electrically conductive part are electrically connected, the other end of first connecting line and first electrically conductive part are electrically connected, second electrically conductive part and the electronic component to be measured are electrically connected.
[0008] Further, the measurement conversion component further includes third electrically conductive part and third connecting line, third electrically conductive part is arranged at the position of the center of conductive ring, second electrically conductive part and third electrically conductive part are electrically connected, one end of third connecting line and third electrically conductive part are electrically connected, the other end of third connecting line and the electronic component to be measured are electrically connected.
[0009] Further, the first insertion hole and the first insertion part are arranged on the multimeter, the first insertion part and the electronic component to be measured are electrically connected, the third connecting line and the first insertion hole are electrically connected, the first insertion part is inserted into the first insertion hole, so that the first insertion part and the third connecting line are electrically connected.
[0010] Further, the measurement conversion component further includes a turntable, the turntable is rotatably arranged around its center, a plurality of mounting grooves are arranged on the turntable, a plurality of mounting grooves are spaced apart along the radial direction of the turntable, the mounting groove arranged at the position of the center of the turntable is the first mounting groove, the mounting groove arranged at the position of the edge of the turntable is the second mounting groove, the first electrically conductive part is arranged in the second mounting groove, and the second electrically conductive part is arranged in the first mounting groove.
[0011] Further, the turntable cover is arranged on the conductive ring, the center of the turntable and the center of the conductive ring coincide, the radius of the turntable and the radius of the conductive ring are the same, so that the second electrically conductive part and the third electrically conductive part are electrically connected, and the first electrically conductive part is electrically connected with three conductive ring segments respectively.
[0012] Further, the second electrically conductive part and the third electrically conductive part are both circular conductive sheets, the radius of the second electrically conductive part and the radius of the third electrically conductive part are the same, and the center of the second electrically conductive part and the center of the third electrically conductive part coincide.
[0013] Further, the conductive ring segment electrically connected with the first-grade test line is a first conductive ring segment, the conductive ring segment electrically connected with the second-grade test line is a second conductive ring segment, the conductive ring segment electrically connected with the third-grade test line is a third conductive ring segment, the plane perpendicular to the axial direction of the conductive ring is a preset projection plane, the projection area of the first conductive ring segment on the preset projection plane is 3 / 5 of the projection area of the conductive ring on the preset projection plane, the projection area of the second conductive ring segment on the preset projection plane is 2 / 15 of the projection area of the conductive ring on the preset projection plane, and the projection area of the third conductive ring segment on the preset projection plane is 2 / 15 of the projection area of the conductive ring on the preset projection plane.
[0014] Further, the conductive ring further comprises a fourth conductive ring segment and a fifth connecting line, the fourth conductive ring segment and the third conductive ring segment are respectively arranged on the two sides of the second conductive ring segment along the circumferential direction of the conductive ring, and the two ends of the fifth connecting line are electrically connected with the fourth conductive ring segment and the third conductive ring segment respectively, so that the fourth conductive ring segment is electrically connected with the third-grade test line.
[0015] According to another aspect of the present application, a multimeter is provided, which comprises a first-grade test line, a second-grade test line, a third-grade test line and the above-mentioned measurement conversion assembly.
[0016] The technical scheme of the present application is applied to the measurement conversion assembly, which comprises a conductive ring and a first conductive piece, the conductive ring comprises three conductive ring segments, the three conductive ring segments are respectively electrically connected with the first-grade test line, the second-grade test line and the third-grade test line of the multimeter, the first conductive piece is electrically connected with the electronic component to be measured, and the first conductive piece moves along the circumferential direction of the conductive ring to electrically connect the first conductive piece with the three conductive ring segments, so that the electronic component to be measured is electrically connected with the first-grade test line, the second-grade test line and the third-grade test line of the multimeter, and the electronic component to be measured is connected to the first-grade test line, the second-grade test line and the third-grade test line. The electronic component to be measured is connected to different test lines of the multimeter by moving the first conductive piece, so that the electronic component to be measured is connected to different test lines of the multimeter without inserting the red probe into different input jacks of the multimeter, the switching of different test lines of the multimeter is successfully completed, and the problem that the digital multimeter is damaged due to the delay of switching of the red probe is solved. BRIEF DESCRIPTION OF DRAWINGS
[0017] The accompanying drawings constituting a part of the present application are used to provide a further understanding of the present application, and the schematic embodiments of the present application and the description thereof are used to explain the present application, and do not constitute an improper limitation on the present application. In the drawings:
[0018] Figure 1 A structure diagram of a conductive ring, a third conductive piece, a third connecting line and a first insertion hole of the measurement conversion assembly according to the utility model is shown;
[0019] Figure 2 A structure diagram of a circuit board, a conductive ring, a first insertion hole and a common terminal insertion hole of the multimeter according to the utility model is shown;
[0020] Figure 3 A structure diagram of a first conductive piece, a second conductive piece and a rotating disc of the measurement conversion assembly according to the utility model is shown;
[0021] Figure 4 A structure diagram of a housing, a display screen and a rotating disc according to the utility model is shown.
[0022] Among the above-mentioned drawings, the following drawing marks are included:
[0023] 10, conductive ring; 11, insulating gap; 12, first conductive ring segment; 13, second conductive ring segment; 14, third conductive ring segment; 15, fourth conductive ring segment; 20, first conductive piece; 21, second conductive piece; 22, first connecting line; 23, third conductive piece; 24, third connecting line; 25, first insertion hole; 30, rotating disc; 40, fifth connecting line; 100, circuit board; 101, housing; 102, display screen; 5, first gear test line access point; 6, second gear test line access point; 7, third gear test line access point; 51, sixth connecting line; 52, seventh connecting line; 53, eighth connecting line; 108, common terminal insertion hole. DETAILED DESCRIPTION
[0024] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments in accordance with the present application. As used in this description, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms "comprises" and / or "comprising", when used in this specification, specify the presence of stated features, steps, operations, devices, components and / or combinations thereof, but do not preclude the presence or addition of one or more other features, steps, operations, devices, components and / or combinations thereof.
[0025] The foregoing merely illustrates the principles of the application. It will be apparent to those skilled in the art that the application can be practiced with modifications and alterations numerous and numerous combinations of the components and processes described herein. Accordingly, the application should not be limited to the specific embodiments described herein, but should be given the full scope of the appended claims, and their equivalents.
[0026] In the description of the present application, it needs to be understood that the orientation words such as "front, back, up, down, left, right", "transverse, vertical, perpendicular, horizontal" and "top, bottom" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate and imply that the indicated device or element must have a particular orientation or be constructed and operated in a particular orientation, therefore cannot be understood as a limitation on the scope of protection of the present application; the orientation words "inner, outer" refer to the inner and outer relative to the contour of each component.
[0027] Please refer to Figures 1 to 4 The utility model provides a kind of measurement conversion component, applicable to multimeter, measurement conversion component includes: conducting ring 10, conducting ring 10 includes three conducting ring segments, three conducting ring segments are spaced apart along the circumferential direction of conducting ring 10, and insulating gap 11 is provided in the middle of any two conducting ring segments, and three conducting ring segments are electrically connected with the first gear test circuit, second gear test circuit and third gear test circuit of multimeter respectively;First conducting part 20, first conducting part 20 and the electronic component to be measured are electrically connected, and first conducting part 20 is movably arranged along the circumferential direction of conducting ring 10, so that first conducting part 20 is electrically connected with three conducting ring segments respectively.
[0028] The utility model discloses a measurement conversion subassembly includes conducting ring 10 and first conducting part 20, and conducting ring 10 includes three conducting ring sections, and three conducting ring sections are connected with the first gear test circuit, second gear test circuit and third gear test circuit of multimeter respectively, and first conducting part 20 is connected with the electronic component of measurement, and through the movement of first conducting part 20 along the circumferential direction of conducting ring 10, to make first conducting part 20 connect with three conducting ring sections respectively, make the electronic component of measurement connect with the first gear test circuit, second gear test circuit and third gear test circuit of multimeter respectively, make the electronic component of measurement access first gear test circuit, second gear test circuit and third gear test circuit respectively.
[0029] Specifically, the first gear test circuit is voltage, resistance, capacitance, temperature, diode and triode test circuit, the second gear test circuit is 20A AC and DC current test circuit, and the third gear test circuit is DC mA, μA current and AC mA current test circuit.
[0030] In the embodiment, as shown in Figure 3 The measurement conversion subassembly further includes a second conducting part 21 and a first connecting line 22, one end of the first connecting line 22 is electrically connected with the second conducting part 21, the other end of the first connecting line 22 is electrically connected with the first conducting part 20, and the second conducting part 21 is electrically connected with the electronic component to be measured.
[0031] Specifically, the first connecting line 22 is used for connecting the first conducting part 20 and the second conducting part 21, so as to ensure that the first conducting part 20 and the electronic component to be measured are electrically connected smoothly, and ensure that the electronic component to be measured can be connected to the different test circuits of the multimeter smoothly through the movement of the first conducting part 20.
[0032] In the embodiment, as shown in Figure 1 And Figure 2 The measurement conversion subassembly further includes a third conducting part 23 and a third connecting line 24, the third conducting part 23 is arranged at the position of the center of the conducting ring 10, the second conducting part 21 is electrically connected with the third conducting part 23, one end of the third connecting line 24 is electrically connected with the third conducting part 23, and the other end of the third connecting line 24 is electrically connected with the electronic component to be measured.
[0033] Specifically, the third connecting line 24 is used to connect the electronic component to be measured and the third conductive part 23, so that the third conductive part 23 and the electronic component to be measured are electrically connected, and then the second conductive part 21 and the electronic component to be measured are electrically connected.
[0034] In the embodiment, as shown in Figure 4 The universal meter is provided with a first insertion hole 25 and a first insertion part, the first insertion part is electrically connected with the electronic component to be measured, the third connecting line 24 is electrically connected with the first insertion hole 25, and the first insertion part is inserted into the first insertion hole 25 to electrically connect the first insertion part and the third connecting line 24.
[0035] Specifically, the first insertion part is inserted into the first insertion hole 25 to electrically connect the first insertion part and the third connecting line 24, and then the third connecting line 24 and the electronic component to be measured are electrically connected, thereby ensuring that the third conductive part 23 and the electronic component to be measured are electrically connected.
[0036] Specifically, the first insertion part is a red probe of the universal meter.
[0037] In the specific implementation, since the electronic component to be measured is connected to different test lines of the universal meter without the need of inserting the first insertion part into different input insertion holes of the universal meter, the first insertion hole 25 is only needed to be arranged, and the electronic component to be measured and the third conductive part 23 are electrically connected, and then the first conductive part 20 and the electronic component to be measured are electrically connected. Therefore, the universal meter only needs to be provided with the first insertion hole 25 and the common end insertion hole 108 for inserting the black probe, thereby reducing the production cost.
[0038] In the embodiment, as shown in Figure 1 The measurement conversion assembly further comprises a rotating disc 30, the rotating disc 30 is rotatably arranged around the center of the rotating disc 30, a plurality of mounting grooves are arranged on the rotating disc 30, the plurality of mounting grooves are arranged along the radial direction of the rotating disc 30, a mounting groove arranged at the position of the center of the rotating disc 30 is a first mounting groove, and a mounting groove arranged at the position of the edge of the rotating disc 30 is a second mounting groove, the first conductive part 20 is arranged in the second mounting groove, and the second conductive part 21 is arranged in the first mounting groove.
[0039] Specifically, the first installation slot is used for limiting installation of the second conductive piece 21 on the rotating disc 30, and the second installation slot is used for limiting installation of the first conductive piece 20 on the rotating disc 30, so as to ensure that the first conductive piece 20 can rotate with the rotating disc 30 and can be electrically connected with the three conductive ring segments of the conductive ring 10 respectively, thereby ensuring that the electronic component to be measured can be connected to the first, second and third test circuits of the multimeter respectively.
[0040] Specifically, the first conductive piece 20 and the second conductive piece 21 are both elastic metal sheets, and the length of the first conductive piece 20 is less than the length of the insulating gap 11 in the direction perpendicular to the radial direction of the rotating disc 30, so as to avoid that the first conductive piece 20 is electrically connected with two conductive ring segments at the same time.
[0041] In the embodiment, as shown in Figure 4 the rotating disc 30 is arranged on the conductive ring 10, the center of the rotating disc 30 coincides with the center of the conductive ring 10, and the radius of the rotating disc 30 is the same as the radius of the conductive ring 10, so as to electrically connect the second conductive piece 21 with the third conductive piece 23 and electrically connect the first conductive piece 20 with the three conductive ring segments respectively.
[0042] Specifically, such arrangement ensures that the first conductive piece 20 located at the edge of the rotating disc 30 is in sufficient contact with the three conductive ring segments of the conductive ring 10 respectively, thereby ensuring that the first conductive piece 20 is in sufficient electrical connection with the three conductive ring segments of the conductive ring 10 respectively, and avoiding that the first conductive piece 20 is in poor contact with the three conductive ring segments of the conductive ring 10 respectively, so that the electronic component to be measured cannot be connected to the first, second and third test circuits of the multimeter; such arrangement also ensures that the second conductive piece 21 and the third conductive piece 23 located at the center of the rotating disc 30 are in sufficient contact, thereby ensuring that the second conductive piece 21 and the third conductive piece 23 are in sufficient electrical connection.
[0043] In the embodiment, as shown in Figure 1 the second conductive piece 21 and the third conductive piece 23 are both circular conductive sheets, the radius of the second conductive piece 21 is the same as the radius of the third conductive piece 23, and the center of the second conductive piece 21 coincides with the center of the third conductive piece 23.
[0044] Specifically, such arrangement can ensure that the second conductive piece 21 and the third conductive piece 23 are in sufficient contact, thereby ensuring that the second conductive piece 21 and the third conductive piece 23 are in sufficient electrical connection, and avoiding that the second conductive piece 21 and the third conductive piece 23 are in poor contact, so that the electronic component to be measured cannot be electrically connected with the first conductive piece 20 smoothly.
[0045] In the embodiment, as shown in Figure 1As shown, the conductive ring 10 further comprises a fourth conductive ring segment 15 and a fifth connecting line 40, the fourth conductive ring segment 15 and the third conductive ring segment 14 are respectively arranged on two sides of the second conductive ring segment 13 along the circumferential direction of the conductive ring 10, and the two ends of the fifth connecting line 40 are electrically connected with the fourth conductive ring segment 15 and the third conductive ring segment 14 respectively, so that the fourth conductive ring segment 15 and the third test circuit are electrically connected.
[0046] Specifically, the fifth connecting line 40 is used to connect the fourth conductive ring segment 15 and the third conductive ring segment 14, so that the fourth conductive ring segment 15 and the third test circuit are electrically connected, thereby ensuring that when the first conductive part 20 is rotated to be electrically connected with the fourth conductive ring segment 15, the electronic component to be measured can access the third test circuit.
[0047] In the embodiment, as shown, Figure 1 the conductive ring segment electrically connected with the first test circuit is the first conductive ring segment 12, the conductive ring segment electrically connected with the second test circuit is the second conductive ring segment 13, the conductive ring segment electrically connected with the third test circuit is the third conductive ring segment 14, the plane perpendicular to the axial direction of the conductive ring 10 is a preset projection plane, the projection area of the first conductive ring segment 12 on the preset projection plane is 3 / 5 of the projection area of the conductive ring 10 on the preset projection plane, the projection area of the second conductive ring segment 13 on the preset projection plane is 2 / 15 of the projection area of the conductive ring 10 on the preset projection plane, and the projection area of the third conductive ring segment 14 on the preset projection plane is 2 / 15 of the projection area of the conductive ring 10 on the preset projection plane.
[0048] Specifically, the projection area of the fourth conductive ring segment 15 on the preset projection plane is 2 / 15 of the projection area of the conductive ring 10 on the preset projection plane. Such arrangement can ensure that the coverage of the first conductive ring segment 12, the second conductive ring segment 13 and the third conductive ring segment 14 is adapted to the range coverage of different test circuits on the dial of the multimeter, so as to avoid that when the first conductive part 20 is rotated to be electrically connected with the second conductive ring segment 13, the range corresponding to the first conductive part 20 is not the range corresponding to the second test circuit, and the test circuit and the corresponding range cannot be switched at the same time.
[0049] Specifically, the shell of the prior art multimeter is provided with a dial and a knob, the dial is provided with a range corresponding to the first, second and third test lines, the present application uses a rotating disc 30 to replace the knob, the first conductive ring segment 12 is arranged at the position corresponding to the scale of the first test line, the second conductive ring segment 13 is arranged at the position corresponding to the scale of the second test line, and the third and fourth conductive ring segments 14 and 15 are arranged at the position corresponding to the scale of the third test line, when the rotating disc 30 is rotated, the range of the corresponding test line can be adjusted, and at the same time, the test line to which the electronic component to be measured is connected can also be adjusted. Such an arrangement can reduce the production cost of the present application.
[0050] As shown in Figure 1 Figure 1 The utility model discloses a measuring conversion component, including rotating disc 30, first, second and third test lines and first, second and third conductive ring segments 12, 13 and 14, rotating disc 30 is rotatably arranged on the first, second and third test lines, first, second and third conductive ring segments 12, 13 and 14 are arranged on the first, second and third test lines respectively, and the first, second and third conductive ring segments 12, 13 and 14 are connected with the first, second and third test lines respectively. Wherein, the first, second and third conductive ring segments 12, 13 and 14 are arranged on the rotating disc 30 respectively, and the first, second and third conductive ring segments 12, 13 and 14 are arranged on the rotating disc 30 respectively.
[0051] The utility model also provides a multimeter, including first, second and third test lines and the measuring conversion component in above-mentioned embodiment.
[0052] The utility model discloses a multimeter also includes circuit board 100, shell 101 and display screen 102, and circuit board 100 is provided with conductive ring 10, first, second and third test lines, first, second and third test line access points 5, 6 and 7, first, third and fifth connecting lines 22, 24 and 40, sixth, seventh and eighth connecting lines 51, 52 and 53, shell 101 is covered on circuit board 100, and at least part of rotating disc 30 is projected on shell 101, and shell 101 is provided with first insertion hole 25 and the public end insertion hole 108 for the insertion of black watch pen, display screen 102 is used to show the measurement data of multimeter, and display screen 102 and the watch head communication connection of multimeter.
[0053] From the above description, it can be seen that the above-mentioned embodiments of the utility model realize the following technical effects:
[0054] The utility model discloses a measurement conversion subassembly includes conducting ring 10 and first conducting part 20, and conducting ring 10 includes three conducting ring sections, and three conducting ring sections are electrically connected with the first gear test circuit, second gear test circuit and third gear test circuit of multimeter respectively, and first conducting part 20 is electrically connected with the electronic component of measurement, and through the movement of first conducting part 20 along the circumferential direction of conducting ring 10, makes first conducting part 20 electrically connected with three conducting ring sections respectively, makes the electronic component of measurement electrically connected with the first gear test circuit, second gear test circuit and third gear test circuit of multimeter respectively, makes the electronic component of measurement respectively access first gear test circuit, second gear test circuit and third gear test circuit.
[0055] For the purposes of this description, spatially relative terms, such as "above", "below", "up", "down", "between", "within", "left", "right", "front", "back", and the like, can be used herein for ease of description to describe one element's or feature's relationship to another element(s) or feature(s) as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientations depicted in the figures. For example, if a device in the figures is inverted, elements described as "above" or "up" other elements or features would then be oriented "below" or "down" the other elements or features. Thus, the exemplary term "above" can encompass both an orientation that is above as well as below. The devices can be otherwise oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly. The terms "first", "second", "third", etc. do not necessarily indicate any ordinal, chronological or other sequence unless expressly so defined by the relative terms used herein.
[0056] In addition, it needs to be explained that the words "first", "second" and the like are used to limit the parts, only for the convenience of distinguishing the corresponding parts, and the above words have no special meaning unless otherwise declared, therefore cannot be understood as the limitation to the protection scope of the application.
[0057] The above only describes the preferred embodiments of the utility model, and does not limit the utility model, and the utility model can have various changes and changes for the person skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the utility model should be included in the protection scope of the utility model.
Claims
1. A measuring conversion assembly, suitable for use in a multimeter, characterized in that, The measurement conversion assembly comprises: A conductive ring (10) comprising three conductive ring segments, the three conductive ring segments are arranged at intervals along the circumferential direction of the conductive ring (10), an insulating gap (11) is arranged between any two of the conductive ring segments, and the three conductive ring segments are electrically connected with a first test line, a second test line and a third test line of the multimeter respectively; A first conductive part (20) electrically connected with the electronic component to be measured, the first conductive part (20) is movably arranged along the circumferential direction of the conductive ring (10) so that the first conductive part (20) is electrically connected with the three conductive ring segments respectively.
2. The measurement conversion assembly of claim 1, wherein, The measurement conversion assembly further comprises a second conductive part (21) and a first connecting line (22), one end of the first connecting line (22) is electrically connected with the second conductive part (21), the other end of the first connecting line (22) is electrically connected with the first conductive part (20), and the second conductive part (21) is electrically connected with the electronic component to be measured.
3. The measurement conversion assembly of claim 2, wherein, The measurement conversion assembly further comprises a third conductive part (23) and a third connecting line (24), the third conductive part (23) is arranged at the position of the center of the conductive ring (10), the second conductive part (21) is electrically connected with the third conductive part (23), one end of the third connecting line (24) is electrically connected with the third conductive part (23), and the other end of the third connecting line (24) is electrically connected with the electronic component to be measured.
4. The measurement conversion assembly of claim 3, wherein, A first insertion hole (25) and a first insertion part are arranged on the multimeter, the first insertion part is electrically connected with the electronic component to be measured, the third connecting line (24) is electrically connected with the first insertion hole (25), and the first insertion part is inserted into the first insertion hole (25) so that the first insertion part is electrically connected with the third connecting line (24).
5. The measurement conversion assembly of claim 3, wherein, The measurement conversion assembly further comprises a rotating disc (30), the rotating disc (30) is rotatably arranged around its center, a plurality of mounting grooves are arranged on the rotating disc (30), the plurality of mounting grooves are arranged at intervals along the radial direction of the rotating disc (30), the mounting groove arranged at the position of the center of the rotating disc (30) is a first mounting groove, the mounting groove arranged at the position of the edge of the rotating disc (30) is a second mounting groove, the first conductive part (20) is arranged in the second mounting groove, and the second conductive part (21) is arranged in the first mounting groove.
6. The measurement conversion assembly of claim 5, wherein, The rotating disc (30) is arranged on the conductive ring (10), the center of the rotating disc (30) coincides with the center of the conductive ring (10), the radius of the rotating disc (30) is the same as the radius of the conductive ring (10), so that the second conductive part (21) is electrically connected with the third conductive part (23), and the first conductive part (20) is electrically connected with the three conductive ring segments respectively.
7. The measurement conversion assembly of claim 3, wherein, The second conductive piece (21) and the third conductive piece (23) are both circular conductive pieces, the radius of the second conductive piece (21) is the same as the radius of the third conductive piece (23), and the center of the second conductive piece (21) coincides with the center of the third conductive piece (23).
8. The measurement conversion assembly of claim 1, wherein, The conductive ring segment electrically connected with the first test circuit is a first conductive ring segment (12), the conductive ring segment electrically connected with the second test circuit is a second conductive ring segment (13), the conductive ring segment electrically connected with the third test circuit is a third conductive ring segment (14), a plane perpendicular to the axial direction of the conductive ring (10) is a preset projection plane, the projection area of the first conductive ring segment (12) on the preset projection plane is 3 / 5 of the projection area of the conductive ring (10) on the preset projection plane, the projection area of the second conductive ring segment (13) on the preset projection plane is 2 / 15 of the projection area of the conductive ring (10) on the preset projection plane, and the projection area of the third conductive ring segment (14) on the preset projection plane is 2 / 15 of the projection area of the conductive ring (10) on the preset projection plane.
9. The measurement conversion assembly of claim 8, wherein, The conductive ring (10) further comprises a fourth conductive ring segment (15) and a fifth connecting line (40), the fourth conductive ring segment (15) and the third conductive ring segment (14) are respectively arranged on the two sides of the second conductive ring segment (13) along the circumferential direction of the conductive ring (10), and the two ends of the fifth connecting line (40) are respectively electrically connected with the fourth conductive ring segment (15) and the third conductive ring segment (14), so that the fourth conductive ring segment (15) is electrically connected with the third test circuit.
10. A multimeter characterized by The measurement conversion assembly comprises a first test circuit, a second test circuit and a third test circuit, and the measurement conversion assembly is the measurement conversion assembly of any one of claims 1 to 9.