TWM381787U - Multimeter - Google Patents

Description

M381787 V. New description [New technical field] This creation is related to a multimeter, especially a magnetic component multimeter with magnetic switchable. At the same time, this creation is also related to a portable electric measuring device, especially An electric measuring device with a display that changes the display direction. [Prior Art] Multimeter is an electronic measuring instrument widely used to measure electrical parameters such as current, t, resistance, capacitance, and frequency. The multimeter can also measure parameters that reflect the external environment (IV), such as temperature. Therefore, "can be in one. The traditional multimeter with less than a few knives on its front side includes the control panel, display screen and signal input device. The main components in the rotary open control panel, users can use this = turn The item to be measured; the display shows the measured result; and the signal input device is provided with the input σ connected to the test pen. The current universal design has a problem, its rotation _ easy Occurrence of operational error • Two t such as ' ΐ Users may incorrectly select the measurement current k when measuring voltage. 14 may cause damage to the multimeter or even damage the user. The long line of the test is another problem of the current design, although The brig extension line is used for measurement, but the extension line of the dangling will also hinder in some cases. In addition, the #multimeter has a pair of pens with extension cords, and the user has to grasp them with two hands when operating. There are extra hands to get the multimeter, so if the user has to find a place to release == to ask others for help. But in some cases, it is not easy to find a place to place the multimeter or seek help from others. M381787 .· <> * 外丨月/yJ费匕 [New content] In order to solve the aforementioned technical problems, the purpose of the present invention is to provide a squatable electric measuring device, in particular to provide a changeable display direction. The electric measuring device of the display screen. In order to solve the above technical problem, another object of the present invention is to provide a multimeter, in particular to a multimeter with a magnetic switchable magnetic component. On the one hand, the present invention provides a multi-control panel. (control panel) ® multimeter, the multi-control panel controls multiple measurement functions. Two or multiple independent control panels can be provided on one side of the multimeter. The two or multiple control panels are spatially separated from one another. The control panel is separated by one or a plurality of display screens, and the direction of the data display on the one or more display screens can be adjusted according to the change of the position or function of the multimeter for the user to read. Each control panel corresponds to Input device for one or more measurement functions selected from the control panel The control panel can be close to its corresponding input device or away from its corresponding input device. The control panel is very user-friendly in terms of space, which reduces the possibility of errors when selecting the measurement function. Allows the user to select one or more measurement functions. Measurement functions based on the same measurement mechanism can be controlled by the same control panel. On the other hand, this creation provides a multimeter with a test pen, wherein at least one extension of the test leads can be used with The test leads are separated, and at least one input jack allows the test pen to be directly inserted. In some embodiments, the multimeter has two test leads, wherein one or two test leads can be split with the extension line; in addition, the multimeter has An input jack is used for the connection of the detachable test leads. In this design 4" years 丨u:, the detachable test pen can be removed from its extension line and can be borrowed... 3 connected to the watch body "«When When using a multimeter that is directly connected to the input socket and another test meter connected to the extension cord, the user can hold it in one hand. Hold the pen table with extended cable, without having to worry multimeter placed the issue. At the same time, this creation provides a multimeter with a built-in test pen, and its built-in test pen can replace the use of the extension pen's pen'. It also provides a solution to the placement problem when using a multimeter. One aspect of the creation provides a multimeter with a first control panel, a second control panel and a display screen on one side of the body, wherein one or more measurement functions can be selected by the first control panel and the second control panel. The first control panel and the second control panel are separated by a display screen. In an embodiment, the multimeter further includes first and second input means for effecting one or more measurement functions selected by the first and second control panels. In one embodiment, the first control panel and the first-input device are located at the first end of the multimeter. The second control panel and the second input are disposed at a second end of the multimeter opposite the first end. In an embodiment, the measurement function selected by the first control panel is implemented by a second input device located at the second end of the multimeter, and the measurement function selected by the second control panel is implemented by a first-input device located at the first end of the multimeter. In another embodiment, the measurement function selected by the first control panel is implemented by a first input device located at the first end of the multimeter, and the measurement function selected by the second control panel is implemented by a second input device located at the second end of the multimeter. - /f tl. In one embodiment, the hu L is in the form of a test lead.帛—or/and the second input device may be in the “in the embodiment”—the branch or the two of the pen # may be split with its extension. In an embodiment, the multimeter further includes an input jack to allow the test leads to be directly attached to the watch body without the need for an extension cord. In an embodiment, the multimeter further includes a test pen built into the multimeter. In the f & mode, the 'th or/and the second input device is a non-sensor sensor'. In an embodiment, the first control panel is used to control the measurement current; and the second control panel is used to control the measurement voltage. In an embodiment, the current is measured with a U-shaped current sensor or a closed-type sweet current sensor. In one embodiment, the pair is provided with one or a plurality of detachable extension lines. In one embodiment, the test leads measure the voltage. In an embodiment, the aforementioned display screen can automatically change the direction of display according to the selected measurement function, so that the user can read the measurement result. In an embodiment, the long axis of the display screen is parallel to the long axis of the multimeter body. In the embodiment, the long axis of the display screen and the long sleeve of the Wansi body are used as function buttons in one embodiment. The first and second control panels use a membrane touch button. (6) The j-built multimeter is further provided with a magnetic component, so that the aforementioned multimeter can be adsorbed to a metal support. Progressively in embodiments, the magnetic assembly includes a switch for opening and closing its magnetic force. Further, in an embodiment, the magnetic component comprises a magnet, a magnet rotating guard for rotating the magnet, and a non-magnetic metal component. In the embodiment, the multimeter further includes one or a plurality of control panels. The X aspect provides a sturdy electrical measuring device that includes a display that changes the direction of the display. The portable electric measuring device can be a multimeter, a process table, and an LED test device. In an embodiment two control panels. The electrical measuring device further includes a first control panel and, further, in the embodiment, the first control panel and the second control panel are distributed on both sides of the display along the longitudinal direction of the electrical measuring device. In an embodiment, the 'electric measurement device further includes a first input device and a second input device', wherein the first input device is disposed at an end of the electrical measurement device adjacent to the second control panel, and the second input device is configured to be electrically The measurement device is located near the end of the first panel. The measurement function selected by the first control panel is implemented by the first input device. The measurement function selected by the second control panel is implemented by the second input device. A further aspect of the present invention provides a (four) electrical measuring device. The electrical measurement device includes a display screen that changes the display orientation. M381787 ,· 丨.. τ作/正 $补无; Since the multimeter provided on the one hand of this creation has a display screen that can change the display direction, it is easy to use. In another aspect, the present invention provides a multimeter with a magnetic assembly that allows the body of the multimeter to be attracted to a metal surface. The magnetic component can be turned on or off with a switch to reduce interference with the measurement and better control the adsorption of the multimeter on the metal surface. A further aspect of the present invention provides a multimeter provided with a magnetic component, the magnetic component comprising at least one magnet and at least one magnetically conductive member, the at least one magnet and the at least one magnetically conductive member being movable relative to each other such that the magnetic component is Switch between open state and closed state. In the open state, the magnetic component is magnetically strong enough to adsorb the multimeter to a metal support, and in the closed state, the magnetic component of the magnetic component is weak enough to adsorb the multimeter to a metal support. The metal support can be any object that the magnetic component can adsorb, at least a portion of which is made of a magnetically permeable material, such as an iron frame, an iron cabinet door, and the like. A multimeter is a sturdy electric measuring device having at least one of a voltage measuring, a current measuring, and a resistance measuring function. • In an embodiment, the magnetic assembly includes a first magnet, a second magnet, a first magnetically permeable member, and a second magnetically permeable member. When the magnetic component is in an open state, the first magnet north pole is only connected to the first magnetic conductive member, the second magnet south pole is only connected to the second magnetic conductive member, the first magnetic conductive member and the second magnetic conductive member are isolated; when the magnetic component is at In the off state, the first magnet north pole and the second magnet south pole are connected by the first magnetic member or/and the second magnetic conductive member. In another embodiment, the magnetic assembly includes a first magnet, a second magnet, a first magnetically permeable member, and a second magnetically permeable member. The first magnet and the second magnet are disposed on one side of a plane, and one end of the first magnet facing the plane is an arc, away from the flat 8 M381787 i

One end of the face is a south pole, and one end of the second magnet facing the plane is a south pole, and one end away from the plane is a north pole. The first magnetically permeable member and the second magnetically permeable member are disposed on the other side of the plane. Further, in an embodiment, the first magnet and the second magnet are relatively fixed and separated from each other to form a first magnet group, and the first magnetic conductive member and the second magnetic conductive member are relatively fixed and separated from each other to form a first magnetic conductive member group. The first set of magnets and the first set of magnetically permeable members are relatively movable parallel to the aforementioned plane. Further, in an embodiment, the relative motion of the first set of magnets and the first set of magnetically permeable members are relative rotations. Further, in an embodiment, the first magnetically permeable member group is fixed, and the first magnet group is relatively rotatable relative to the first magnetically permeable member group. Further, in one embodiment, the first set of magnets is substantially at 90 degrees when the magnetic assembly is in the open state and when the magnetic assembly is in the closed state. In one embodiment, the first magnet, the second magnet, the first magnetically permeable member, and the second magnetically permeable member are flat and substantially parallel to the plane. Further, in an embodiment, the first magnet, the second magnet, the first magnetically permeable member, and the second magnetically permeable member may be formed into a flat body having substantially the same area. Flat Flats can be semi-circular, arcuate, rectangular, triangular, and the like. Further, in an embodiment, the first magnet, the second magnet, the first magnetic conductive member and the second magnetic conductive member are arcuate flat bodies, the first magnet group is rounded, and the second magnet group is substantially round shape. In one embodiment, the magnetic system is a permanent magnet. The magnetically permeable member may be made of any magnetically permeable material such as iron, iron alloy, nickel, shishan steel, Beryllium Monium Alloys, ferrite, and the like. 9 In one embodiment, and the first magnetically permeable member and the second permeable member, the non-magnetically permeable material may be used. m ββ ' is complementary; the first magnet and the first magnetically permeable member are separated by a spacer. The spacer strip is made of non-magnetic material, such as steel, wrong, tin, gold, silver, engineering plastics, and the magnetic residual material includes the body clamped on the magnetic conductive cover and the first magnetic conductive member and the second magnetic conductive material. The friction between the (4) group and the first magnetically conductive member group during relative movement and reduce the magnetic flux leakage of the magnetic component. The magnetically permeable cover is made of a magnetically permeable material. In an embodiment, the magnetic component is provided on the back surface of the multimeter. In the embodiment, the magnetic component is provided on the back of the multimeter. In an embodiment, the magnetic permeable is provided. The piece is fixedly disposed in the fixed clip-embodiment, and the magnetic component is fixedly disposed on the multimeter. In another embodiment, the magnetic component is detachably mounted on the multimeter, for example, by a snap device attached to the multimeter. In one embodiment, the magnetic assembly includes a first magnet, a second magnet, and at least one magnetically permeable member, the first and second magnets being movable relative to the magnetically permeable member to enable the magnetic assembly to switch between the two states. When the magnetic assembly is in the open state, the first magnet north pole and the second magnet south pole are disconnected; when the magnetic assembly is in the closed state, the north pole of the first magnet and the second magnet south pole are connected by at least one magnetic member. In one embodiment the 'magnetic assembly' includes a magnet and at least one magnetically permeable member. When the magnetic component is in the open state, the magnetic field lines 10 from the north pole of the magnet need to pass through a metal support to reach the south pole, so that the magnetic component 4 can be attached to the metal support. When the magnetic component is in the off state, the magnetic flux from the north pole of the magnet passes through the magnetic conductive member only to the south pole, so the magnetic component has no adsorption force to the metal support or weak adsorption force. In an embodiment, the magnetic assembly includes a first magnet, a second magnet, a first magnetically permeable member, and a second magnetically permeable member. When the magnetic component is in an open state, most of the magnetic lines of force from the north pole of the first magnet may sequentially pass through the first magnetic conductive member, an outer metal support and the second magnetic conductive member to reach the south pole of the second magnet, so that the magnetic component can be adsorbed on The outer metal support. When the magnetic component is in the off state, most of the magnetic lines of force from the north pole of the first magnet pass through the first magnetic or/and second magnetic flux to the south pole of the second magnet, so that the magnetic component has no adsorption force on the metal support or The adsorption force is weak. In one embodiment, the magnetic assembly includes a magnet, a first magnetically permeable member, and a second magnetically permeable member that is movable relative to the first and second magnetically permeable members. When the magnetic component is in an open state, the two poles of the magnet are respectively connected with the first magnetic conductive component and the second magnetic conductive component; when the magnetic component is in the closed state, the two poles of the magnet are simultaneously with the first magnetic conductive component and the second magnetic conductive component At least one of the connections. The multimeter of the present creation may include any combination of the foregoing features. Compared with the prior art, the creation multimeter has the following functions: the multimeter of the creation is simple to operate and convenient to use. [Embodiment] The present invention will be further described below in conjunction with the drawings and embodiments. In the embodiment shown in Figures la and lb, the front side of the multimeter is provided with two separate control panels. As shown in Fig. 1a, the control panel 11 and the control panel 12 are provided at both ends of the front surface of the multimeter 10. At the two ends of the multimeter close to the control surface M381787 • » t · _, the month/4 positive plate is provided with two input devices, an input device 13 and an input device 14, respectively. The input device is used to obtain measurement data from the circuit. Each control panel has a corresponding input device, and the input device obtains measurement data from the circuit according to the measurement function selected from the control panel. A display screen 15 for displaying measurement data is provided between the control panel 11 and the control panel 12. • • As shown in Figure la, the multimeter is slim, and the control panel 11 and control panel 12 are located at each end of the multimeter. The control panel 11 is located at one end of the multimeter adjacent to the input device 13, and the input device 13 is used to implement one or more measurement functions selected from the control panel 11. The control panel 12 is located at the other end of the multimeter adjacent to the input device 14 for effecting one or more of the measurement functions selected from the control panel 12. The control panel can use a traditional button as a selection button or a thin film touch button as a selection button. In addition, the control panel can also use the touch screen as a selection button, and the user can make a selection by gently touching the surface of the control panel with a hand. Display 15 shows the measurement results for any of the measurement functions. As shown in Fig. 1a, the display screen 15 is rectangular and its long axis is perpendicular to the long axis of the multimeter. When used, the display result of the display will automatically change the display direction according to the selected measurement function for the user to read. As shown in FIG. 1a, when the user measures with the control panel 11 and the input device 13, one end of the control panel 11 and the input device 13 is provided away from the user, and the direction of the data displayed on the display screen is the control panel 11 and the input. The device 13 is above the display material. On the other hand, if the user flips the multimeter and measures with the control panel 12 and the input device 14, the control panel 12 and one end of the input device 14 are provided away from the user, and the direction of the data displayed on the display screen is also reversed, that is, on the display screen. The direction of the displayed material is that the control panel 12 and the input device 14 are above the display material, see Figure lb. In another embodiment, the display direction of the display screen can also be adjusted by the user of the 12 M381787 ___ according to the specific use situation, for example, a button can be set on the 10,000 body to change the display direction of the display screen. As shown in Figures la and lb, the control panel and its corresponding input device are located at the same end of the multimeter display. The control panel can also be moved away from its corresponding input device. For example, the control panel and its corresponding input equipment in Figure 2 are located at opposite ends of the multimeter. As shown in Figs. 2a and 2b, the front end of the multimeter 20 is provided with a control panel 21 and a control panel, and an input device 23 and an input device 24, respectively. The wheeling device 24 is used to implement one or more of the measurement functions selected by the control panel 21. Input device 23 is used to implement one or more of the measurement functions selected by control panel 22. A display screen 25 is provided between the control panel 2A and the control panel 22. In the present embodiment, the control panel and its corresponding input device are separated by the display screen, and the two positions on the opposite sides of the multimeter are in the second drawing. When the user measures with the control panel 22 and the input device 23, the input device 23 is used. One end is away from the user, and the direction of the data displayed on the display is the input device 23 above the displayed data. In Fig. 2b, the user measures with the control panel 21 and the input device 24 that a φ end of the input device 24 is remote from the user, and the direction of the data displayed on the display screen is the input device 24 above the display data. In another embodiment, as shown in Figures 3a and 3b, the long axis of the display % can also be parallel to the long axis of the multimeter. As shown in Fig. 3a, the multimeter is used in the direction in which the control panel 31 is on the left and the control panel 32 is in the right direction. The direction in which the display screen displays the data is also that the control panel 31 is on the left and the control panel 32 is on the right. For example, 疋 greatly facilitates the user to read the tribute. In Fig. 3b, the multimeter is rotated 180 degrees so that the control panel 32 is rotated by 18 degrees in the direction of the left and the control panel 31 in the right result of the right display, so that the control panel 32 is on its left, the control panel 31 On its right. 13 Although the display screen is rectangular in the foregoing embodiments, it may be square, elliptical, circular or any other desired and/or convenient graphic. The display can also be a liquid crystal display or other display technology such as (including but not limited to) VFD. Traditional methods can also be used to determine the placement direction of the multimeter, such as a sensor. The multimeter of this creation can be used to measure any known electrical parameters that can be measured with a conventional multimeter, including but not limited to current, voltage, resistance, capacitance, frequency and electrical energy. The multimeter of this creation can also measure some parameters that are not related to electricity, such as temperature and humidity. The multimeter of this creation can set the complex control panel to control the measurement function corresponding to the measurement parameters. For example, in the multimeter shown in Figure 1a, control panel 11 can be used to select the measurement voltage; control panel 12 can be used to select the measurement current. Each control panel can be used to select one or more measurement functions. For example, in the multimeter shown in Figure 1, control panel 11 can be used to select the measurement voltage and resistance; control panel 12 can be used to measure current in amps or milliamps. The multimeter can also measure non-electrical parameters such as temperature, humidity, and more. The input device can be measured directly in contact with the circuit, or it can be placed close to the circuit but not in contact with the circuit. In some embodiments, the input device 13 of Figure la is a pair of test leads with extension cords connected directly to the circuit to measure the voltage and resistance of the circuit. The input device 14 is a closed-clamp type sensor that can measure its current without being directly connected to the circuit. In some embodiments, one or more of the input devices can be contact sensors, including but not limited to, a test lead with or without an extension. When the meter has an extension cord, it can be split with the extension cord or it can be split with the extension cord. In some embodiments, one or more of the input devices can be non-contact sensors. The non-contact type sensor M381787 m · ·

It can be an open u-type sensor or a closed clamp type sensor. Contact sensors and non-contact sensors can be set simultaneously on a single multimeter. A multimeter can have more than two control panels. The control panel can be located on different sides of the multimeter. For example, the multimeter has multiple control panels on the front and multiple control panels on the back. Each control panel controls the measurement function of its corresponding input device. Alternatively, one or more of the multimeters may have a detachable extension cord. In some embodiments, the multimeter has a pair of test leads, one or both of which may be split with the extension cord. In addition, the multimeter can be equipped with an input jack so that the test leads with the extension cord removed can be inserted directly into the body to complete the measurement function. In some embodiments, the multimeter has two test leads with extension cords and a third test lead that is directly attached to the watch body. The first and second test leads or the first and third test leads can be used for the measurement function, but the second and third test leads cannot be used simultaneously for the measurement function. As shown in Fig. 4a, the multimeter 40 includes a pair of test leads 41 and 44 connected to extension cords 42 and 45 which are separable from the extension cord. In the embodiment shown in Fig. 4a, the test lead 41 and the test lead 44 can be connected to their extension lines at the same time for measurement. In the present embodiment, the user holds the test leads separately with both hands, and the multimeter cannot be taken at the same time. In Fig. 4b, the test lead 41 is separated from the extension cord 42 and directly inserted into the input jack 43. The test lead 44 is connected to the extension cord 45. In the present embodiment, the test leads 41 and the test leads 44 can be used for measurement. . In this case, the user holds the multimeter 40 to which the test lead 41 is attached with one hand and the test lead 44 with the other hand. When the two test leads do not need to use the extension cord at the same time, if the object to be measured can be measured by directly connecting to the meter of the multimeter, the method of the embodiment in Fig. 4b can be used. At this point, the user does not have to worry about the placement of the multimeter when measuring. 15 M381787 • * · · IJW nf

As shown in Fig. 4c, the multimeter 40' is provided with a test lead 44' and an extension cord 45', and the built-in test lead 46' is directly attached to the multimeter. Further, the test lead 41' and its extension line 42' (not shown in Fig. 4c) are connected to the multimeter by a joint portion. Fig. 4c shows that the measurement can be performed using the test leads 44' and 46' as input means, at which time the input jack 48' is in the off state. In addition, Fig. 4d shows that the test lead 46' can be stowed in a non-use state, at which time the input jack 48' will be opened, the test lead 4'' and its extension cord 42' can be displaced from its connection, and then inserted into Input socket 48' to complete the measurement function. Therefore, in this embodiment, when the multimeter is used, the test pen 44' and the test pen 46' can be used for measurement, and the test pen 44' and the test lead 4 can be used for measurement. For safety reasons, the test leads 4 and 46' cannot be connected to the circuit of the multimeter at the same time. When the test lead 46' is used, the input jack 48' is in a closed state so that the test lead 4'' and its extension cord 42' cannot be inserted. When the test lead 46' is not used, the input jack 48' is in the open state, and the test lead 4'' and its extension cord 42' can be inserted. The pens 41' and 44' can be fixedly coupled or detachably connected to the extension wires 42' and 45'. Here, the test pen 46' may be retracted by rotation, or may be stowed by other means, such as (including but not limited to) a sliding mode or the like.

On the other hand, the present invention provides a multimeter with a magnetic component to adsorb the body to the metal surface. The magnetic assembly can be placed anywhere that facilitates the adsorption of the body to the metal surface. In some embodiments, the magnetic assembly is provided with a switch to open or close the magnetic force. When the switch is turned on, the magnetic force of the magnetic component causes the multimeter to adhere to the metal surface; when the switch is turned off, the magnetic component has no magnetic force. When the magnetic force of the magnetic component is turned off, its interference on the multimeter is also minimal. At the same time, if there are many metal objects in the environment to be tested and the magnetic force of the magnetic components is always open, the magnetic components may not be necessary for some unnecessary metal objects. If the magnetic force can be borrowed from the switch closure assembly, the internal structure of the magnetic assembly is as shown in FIG. The magnet 52 includes a magnet 51 and a pole iron 52, wherein the magnet 51 is located between the two pole irons. The magnet 51 is rotatable between the two positions between the two pole irons. As shown in Fig. 3, the magnet 51 is in the first position, and the magnetic field between the south pole of the magnetic field and the parallel pole of the south pole and the north pole runs in the space between the pole irons, but does not magnetize the pole iron. Therefore, the pole iron does not have a magnetic force and cannot attract metal objects. Therefore, when the magnet 51 is in the first position, the magnetic 14 component is in the closed state. As shown in Fig. 5b, the magnet 5ι is in the second position. The south pole and the north pole of the magnetic field are perpendicular to the pole iron, and the magnet magnetizes the pole iron to become the south pole and the north pole, respectively. If so, the two pole irons conduct magnetic forces and can attract metal objects. When the magnet 51 is in the second position, the magnetic assembly is in an open state. The magnet 51 can be switched between the first position and the second position by a certain turning tool, such as rotation, and the turning tool is not described in Figs. 5a and 5b. The structure of the rotary tool can be any technically feasible structure that performs the rotary function. The rotatable member of the magnetic assembly can also be iron or both. The magnetic assembly can include a magnet, a rotating tool for rotating the magnet, and a set of non-magnetic metal components. Figure 6a shows the magnetic assembly 61 placed on the back of the multimeter. The magnetic assembly 61 is set to "open", indicating that the multimeter has magnetic force adsorbed to the metal at this time. Figure 6b shows a side view of a multimeter with a magnetic component 61 attached to the back, which is attracted to a metal plate 62. Figure 6c shows the magnetic assembly 61 placed on the back of the multimeter with the magnetic assembly 61 set to "closed" indicating that the multimeter is not magnetically attracted to the metal. 17 M381787 __ V.················································································································ The input jack for inserting the test leads directly into the multimeter's body's or multiple pens without extension cords attached to the multimeter, or / and one or more magnetic components.

Fig. 7 shows the structure of the magnetic component _ in one embodiment of the present invention. The magnetic component 丨〇〇 includes a magnet group 101 and magnetic flux groups iu and i2i. The magnet group 101 includes a rectangular flat magnet 1〇3 to 1〇5 and a spacer 107 provided between the magnets 1〇3 and 1〇5, wherein the spacer 1〇7 is made of a non-magnetic material. The magnets 103 and 1 () 5 and the spacers 1 〇 7 are integrally formed into a rectangular flat shape. The magnetic permeable member group m includes magnetic conductive members 113 and 115 and a spacer 117 provided between the magnetic conductive members 113 and 115. The magnetic conductive members 113 and 115 and the spacer 117 form a body-like rectangular flat body. The magnet group 121 includes a magnetic member U3 force 125 and a spacer 127 disposed between the magnetic members 123 and 125. The magnetic members 123 and 125 and the spacer 127 form an integral rectangular flat body. Wherein, the magnet group (1) and 121 are separated by a spacer 129, and the spacers 129 and 127 are substantially perpendicular. The magnet group (1) and the i2i and the spacer 129 form a body and have a rectangular flat shape. - The magnetically conductive cover ΐ 4 ι is disposed under the magnet group 101. The magnet group 101 is interposed between the magnetic conductive cover 141 and the magnetic conductive member groups 1U and 121. In an embodiment, the magnet group 1〇1 is parallel to the magnetic flux groups 219 and 121 and the magnetically permeable cover M1 and is sufficiently close to or even in contact. In one embodiment, the magnet group ιοί can slide parallel to the set of magnets 111 and 121 along the direction in which the sets of transducers U1 and 121 are distributed. The magnetically permeable cover 141 is made of a magnetically permeable material, which reduces the friction generated by the relative movement of the magnet group 101 and the magnetic flux group 111 and the cymbal 21, and at the same time reduces the magnetic flux leakage of the magnetic component 1 。. 18 Called Gan page, the death of the million percent of the sisters is the North Pole, the group 101 is the upper side of the flute Z body 105 is the South Pole. When the magnet is in the no丄 position, the magnet 103 faces the magnetic conductive member 113 in the north pole, and the magnetic member faces the magnetic conductive member. At this time, the line from the north pole of the magnet 103 can only pass through the magnetic pole 113, the south pole of the upper body 5 of the magnetic flux group 111, and the material _115 reaches the magnetic magnetic field. The magnetic force of the assembly (10) is large, and the multimeter can be attracted to the metal support and 10:2: the portion of the magnet 103 and the magnets 123 and 125 when the magnet group 101 is in the second position. At this time, most of the magnetic force reaches the north pole of the magnet 105, and the two passes through the magnetic conductive members 123 and 125 respectively. The stomach 5 (four) poles do not need to borrow the metal cutting material. In this state, the magnetic component has no external magnetic force, or =:: metal branch - —=: Use thousands of turns to switch between the magnet group lu and 12. The movement of the force 121 in the first position and the second position is made of any non-magnetically permeable material. It is also possible to spatially isolate the spacers, such as by spacing the magnets 103 and 10 < In one embodiment, the spacers ?1-7 127 can be removed to combine the magnetically permeable members 123 and 125 into a magnetically permeable member. Fig. 9 shows the structure of the magnetic component in the other embodiment of the present invention. The magnetic component 200 is disposed on the clip 2〇1 of the back of the multimeter. The clip 2〇 can be used to clamp the multimeter to the user's clothing or the like. The magnetic component 2 is placed on the clip 2〇1 to keep it away from the internal circuit of the multimeter, thereby reducing the influence of the magnetic component 2〇〇 M381787 • · » ·» on the test. The magnetic assembly 200 includes a housing 2〇3, magnetic members 27j and 213 magnets 221 and U3, a dialing member 241, and a bottom cover 251. In an embodiment, the magnetic conductive members 211 and 213 are integrally formed with the housing 203 by injection molding, and a spacer strip 2 〇 5 ′ is disposed between the magnetic conductive members 211 and 213 , wherein the magnetic conductive members 211 and 213 The arcuate flat bodies are substantially in the same plane such that the magnetic conductive members 211 and 213 and the spacer strips 2〇5 form a substantially circular flat body. The dial 231 includes an integrally formed lever 233 to

And the ring body 235, wherein the ring body 235 is divided by the lever 233 to form two semicircular cavities 237 and 239. The magnets 221 and 223 are respectively received in the cavities 237 and 239, and the dial 231 is mounted on the housing 2〇3, and the lever 233 extends from the notch 2〇7 of the housing 2〇3 for the user to operate. The magnetic cover 241 is mounted on the lower portion of the dial 231 in the housing 203, so that the magnets 221 and 223 received in the cavities 237 and 239 of the dial 231 are sandwiched between the magnetic members 211 and 213 and the magnetic cover 241. between. The bottom cover 251 is attached to the bottom of the casing by snapping or integral molding to fix the magnets 221 and 223, the dial member 231, and the magnetically conductive cover 241 in the casing 203. The body 203, the spacer 205, the dial 231, and the bottom cover 251 are made of a non-magnetic material. The magnetic conductive members 211 and 213 are made of a magnetically permeable material. Toggle lever 231

The magnets 221 and 223 can be rotated relative to the magnetic members 211 and 213 to switch the magnetic assembly 200 between the open state and the closed state. In an embodiment, when the lever 233 is moved to the leftmost position, the magnetic component 2 is in an open state, and when the lever 233 is turned to the rightmost position, the magnetic component 2 is in a closed state, wherein When the lever 233 is dialed to the leftmost position, it is approximately 90 degrees when it is dialed to the rightmost position. Referring to Fig. 10a, a cross-sectional view perpendicular to the direction of the lever 233 when the magnetic assembly 200 is in the open state. In one embodiment, the upper surface of the magnet 221 is north pole, the lower side is south pole, the upper surface of the magnet 223 is south pole, and the lower side is north pole. 20

M381787 ..... • The magnet 221 faces the magnetic conductive member 213, and the magnet 223 faces the magnetic conductive member 211. At this time, the magnetic force line starts from the north pole of the magnet 221, and sequentially passes through the magnetic conductive member 213, the metal support 261, and the guide. The magnetic member 211 reaches the south pole of the magnet 223. Therefore, the external magnetic force of the magnetic component 200 is large, and the multimeter can be adsorbed to the metal support 261. Please refer to FIG. 10b, which is perpendicular to the lever 233 when the magnetic component 200 is in the closed state. A cross-sectional view of the direction. At this time, the lever 223 is substantially perpendicular to its leftmost position (as shown in Fig. 1a), i.e., the relative positions of the magnets 221 and 223 and the magnetic members 211 and 213 are rotated by about 9 degrees. At this time, the magnets 221 and 223 both face the portions of the magnetic conductive members 211 and 213, and the magnetic lines of force from the north pole of the magnet 221 pass through the magnetic conductive members 211 and 213, respectively, to reach the south pole of the magnet 2, without the need for metal support. Therefore, the magnetic component has no external magnetic force, so the multimeter cannot be adsorbed to the external metal support. In one embodiment, the ring body 235 on the dial member 231 can be removed from the port remaining lever 233. ^

Field; ^ magnets 221 and 223 from a ------""eight" discussion, the right does not set the magnetic cover 241 'the magnet 221 and (2) and the relative movement of the magnetic members 2 ΐ ι and 213 f The friction is greater. The magnetic cover 241 2 is provided with the magnets 221 and 223 simultaneously generating suction force to the magnetic conductive cover 241 to weakly describe the frictional force. On the other hand, the magnetic flux leakage is reduced. The magnetic cover can also reduce the magnetic component 2, the mussels, and the dry only change the pole of the magnet one: 3::: The sex component 2〇0 has a polarity distribution that is substantially parallel to the pole where the magnet 221 and the work are located, and the right side is the south pole. For example, the left side of the magnet 223 such as the magnet 221 is north on the left side and the south side on the right side. When the 21 M381787 * I * lever 233 is dialed to the leftmost position, " edge positive I I 7»=^ %: the side magnet 221 faces the magnetic conductive member 213

The magnet 223 faces the magnetic conductive member 211. At this time, the magnetic force line starts from the north pole of the magnet 221 and passes through the magnetic conductive member 213 to reach the south pole of the magnet 221; the magnetic force line starts from the north pole of the magnet 223 and passes through the magnetic conductive member 211 to reach the south pole of the magnet 223. Therefore, the magnetic component 200 has no external force and cannot be adsorbed to the external metal support. When the lever 233 is moved to the rightmost position, the magnets 221 and 223 both face the portions of the magnetic members 211 and 213. At this time, the magnetic lines of force start from the north pole of the magnet 221, and may sequentially pass through the magnetic member 211 and the external metal support. The magnetic pole 213 reaches the south pole of the magnet 221; the magnetic flux starts from the north pole of the magnet 223, and sequentially passes through the magnetic conductive member 211, the outer metal support, and the magnetic conductive member 213 to reach the south pole of the magnet 223. Therefore, the magnetic component 2〇 The crucible can be adsorbed to an external metal support. In an embodiment, only one of the magnets 221 and 223 may be retained. In an embodiment, the magnetic conductive members 211 and 213 and the magnets 221 and 223 are both arcuate flat bodies, which may also be in any other shape, such as a rectangular flat body, an elliptical flat body, a triangular flat body, and a polygon. Flat body, etc. Referring to Figure 11a, a magnetic assembly 300 in yet another embodiment of the present invention is shown. The magnetic assembly 3 includes a magnet 3 (Π, a magnetically permeable member 3〇3 and 3〇5, and a spacer 307. The spacer 307 isolates the magnetically conductive members 303 and 3〇5. The magnet 3〇1 is housed in the magnetically permeable member The chambers formed by 303 and 305 are rotatable relative to the magnetic members 303 and 305. In the state shown in Fig. 11a, the magnetic lines of force start from the north pole of the magnet 301 and pass through the magnetically permeable members 3 and 3, respectively. 3〇5 reaches the south pole. Therefore, the magnetic component 300 has no adsorption force to the outer metal support 311. The lib diagram of the lib ,, in the state shown in FIG. 11b, the magnetic lines of force start from the north pole of the magnet 301, and then pass through the magnetic field. Pieces 3〇3, metal support 311 22 M381787 • 1 I » and magnetically permeable member 3〇5 reach the south pole. It is the attraction of the object 311.

Magnetic Assembly 300 for Metal Push In yet another embodiment of the present invention, a magnetic component can also be constructed using electromagnetic technology to generate a magnetic force using electricity. In summary, the creation has indeed met the requirements of the new patent and has filed a patent application in accordance with the law. However, the above description is only a preferred embodiment of the present invention and is not intended to limit the scope of the present invention. Equivalent modifications or variations made by those of ordinary skill in the art to the spirit of the present invention are still covered by the appended claims. BRIEF DESCRIPTION OF THE DRAWINGS The first and second lb diagrams are perspective views of a multimeter in an embodiment of the present invention, and the second and second diagrams are schematic views of a multimeter in another embodiment of the present invention;

3a and 3b are plan views of a multimeter in another embodiment of the present invention; 4a, servant, 4c, and 4d are perspective views of a multimeter in another embodiment of the present invention; Figure 5b is a structural schematic diagram of the magnetic component of the present invention; Figures 6a, 6b, and 6C are perspective views of a multimeter having a magnetic component on the back side of the present invention; and Figure 7 is a magnetic component of the present embodiment. Schematic diagram of the structure; 23 M381787 Fig. 8a is the intention of the magnetic component shown in Fig. 7 in the open state, and Fig. 8b is the intention when the magnetic component shown in Fig. 7 is in the closed state, Fig. 9 A schematic diagram of the structure of a magnetic component in another embodiment of the present invention (SI · Park, Figure 10a is a schematic view of the magnetic component shown in Fig. 9 when the magnetic component is in an open state;

Figure 10b is a schematic view of the magnetic component shown in Figure 9 when the magnetic component is in a closed state, and Figure 11a is a schematic view of the magnetic component in an open state in another embodiment of the present invention; A schematic view of the magnetic assembly shown in a closed state.

[Description of main components] Multimeter 10 Control panel 11 Control panel 12 Input device 13 Input device 14 Display 15 Multimeter 20 Control panel 21 Control panel 22 Input device 23 Input device 24 Display 25 Control panel 31 Control panel 32 Display 35 Multimeter 40 24 M381787 . » _ ·

Stylus 41 extension cord 42 input socket 43 test pen 44 extension cord 45 multimeter 40, test lead 41, extension cord 42, pen 44' extension cord 45' test pen 46, input socket 48' magnet 51 pole iron 52 magnetic component 61 Metal plate 62 magnetic assembly 100 magnet group 101 magnet 103 magnet 105 spacer strip 107 magnetic member group 111 magnetic member 113 magnetic member 115 spacer strip 117 magnetic member group 121 magnetic member 123 magnetic member 125 spacer 127 spacer 129 magnetic cover 141 metal support 151 magnetic assembly 200 clip 201 housing 203 spacer 205 notch 207 magnetic 211 magnetic 213 magnet 221 magnet 223 dial 231 lever 233 ring body 235 cavity 237 cavity 239 Magnetic cover 241 bottom cover 251 25 M381787 • * . 1 metal branch 261 magnetic assembly 300 magnet 301 magnetic 303 magnetic 305 spacer 307 metal branch 311

26

Claims (1)

M381787 6. Patent application scope: 1. A multimeter comprising a magnetic component, the magnetic component comprising at least one magnet and at least one magnetic conductive member, wherein the at least one magnet and the at least one magnetic conductive member are relatively movable such that the magnetic component can be Switching between an open state and a closed state, in which the magnetic force of the magnetic component is strong enough to adsorb the multimeter to a metal support 'in the closed state', the magnetic force of the magnetic component is weak enough to adsorb the multimeter A metal support. Φ 2. The multimeter according to claim 1, wherein the magnetic component comprises a first magnet, a second magnet, a first magnetic conductive member and a second magnetic conductive member; when the magnetic component is in an open state, the first The north pole of the magnet is only connected to the first magnetic conductive member, the south pole of the second magnet is only connected to the second magnetic conductive member, and the first magnetic conductive member is separated from the first magnetic conductive member; when the magnetic component is in a closed state, the first magnetic pole is north and The south pole of the second magnet is connected by the first magnetically conductive member or/and the second magnetically conductive member. 3. The multimeter according to claim 1, wherein the magnetic component comprises a first magnet, a second magnet, a first magnetic conductive member and a second magnetic conductive member; the first lu magnet and the second magnet are disposed in a One side of the plane, the first magnetic conductive member and the second magnetic conductive member are disposed on the other side of the plane, one end of the first magnet facing the plane is a north pole, and one end far from the plane is a south pole, and the second magnet faces the plane The two ends are south poles, and one end away from the plane is the north pole. 4. The metering as described in claim 3, wherein the first magnet and the second magnet are relatively fixed and separated from each other to form a first magnet group, and the first magnetic member and the second magnetic member are relatively fixed and The first magnet group and the first magnet group 27 may be substantially parallel to the plane opposite to each other as in the above-mentioned plane, wherein the first magnet group 27 is 11 mountains? The correction of the day and the relative operation of the first group of magnetizers - for the brothers, as described in the patent specification @@5, the first __magnetic member group of the towel is fixed, and the aforementioned first magnet group can be opposite The first magnetically permeable group moves. A multimeter as claimed in claim 6 wherein said first magnet plate is substantially 90 degrees when said magnetic component is in a (four) state - said component is in a closed state. The multimeter according to claim 4, wherein the first magnet, the second magnet, the first magnetic conductive member and the second magnetic conductive member are flat bodies, the first magnet, the second magnet, and the first magnetic And the second magnetically conductive member is substantially parallel to the aforementioned plane. The multimeter according to claim 8, wherein the first magnet, the second magnet, the magnetic conductive member and the second magnetic conductive member are arcuate flat bodies, and the magnet group is substantially circular, and the first magnetic conductive member The group is roughly circular. The multimeter as claimed in claim 3, wherein the magnetic component further includes a magnetically-conductive cover, and the first magnet and the second magnet are disposed on the magnetic conductive cover and the first magnetic conductive component and the second Between the magnetically conductive parts. A multimeter as described in the scope of the patent application, wherein the magnetic component is provided on the back side of the aforementioned multimeter. The multimeter as described in claim 11, further comprising a fixing clip, wherein the magnetic component is disposed on the back of the multimeter. The multimeter of claim 1, wherein the magnetic component comprises a first magnet, a second magnet, and at least one magnetic component; when the magnetic component is in an open state, the first magnet north pole and the second magnet south pole Disconnected; when the aforementioned magnetic component is in the closed state, the aforementioned first magnet north pole and the second M381787 The south pole of the magnet is connected by at least one of the aforementioned magnetically permeable members. The multimeter of claim 1, wherein the magnetic component comprises a magnet, a first magnetically permeable member and a second magnetically permeable member, the magnet being rotatable relative to the first The magnetic conductive member and the second magnetic conductive member move, when the magnetic component is in an open state, the two poles of the magnet are respectively connected with the first magnetic conductive member and the second magnetic conductive member; when the magnetic component is in a closed state, the magnet is The two poles are simultaneously connected to at least one of the first magnetic conductive member and the second magnetic conductive member. 29 M381787 Public New Patent Specification (Please do not change the format and order of this manual, please do not fill in the ※ part) ※Application number: price secret ※Application date: cj^ η/^>^(2006.01) I. New name: (Chinese / English) Multimeter II. Chinese New Abstract: This creation provides a multimeter. The multimeter includes a magnetic assembly including at least one magnet and at least one magnetically permeable member, the magnet and the magnetically permeable member being movable to switch the magnetic assembly between an open state and a closed state. In the open state, the magnetic component is magnetically strong enough to adsorb the multimeter to a metal support, and in the closed state, the magnetic component of the magnetic component is so weak that the multimeter cannot be adsorbed to a metal support. The magnetic components of this creation prevent the multimeter from being accidentally attracted to the metal support. Third, the English new abstract: ) # four, the designated representative map: (a) The designated representative figure of the case is: Figure 9 (two) The symbol of the representative figure is a simple description: magnetic component 200 clip 201 housing 203 spacer 205 Notch 207 Magnetic member 211 Magnetic member 213 Magnet 221 M381787 .* r ' Magnet lever cavity magnetic cover 223 233 237 241 d 丨r Dial 231 Ring body 235 Cavity 239 Bottom cover 251