TWI598591B - Multimeter with switching protection mechanism for charging - Google Patents

Description

Scale with charging switching protection mechanism

The present invention relates to a scale, and more particularly to a gauge having a charging function.

Multimeter electronic measuring instruments (Multimeter) are mainly used in physical, electrical, electronic and other measurement fields. They generally include functions such as ammeter (amperometer), voltmeter (voltmeter), and resistance meter (ohmmeter), and also include other special functions. Meet various applications and needs, also known as multimeters, multimeters, multimeters, multimeters or tricycles.

Most of the common methods used by existing electronic measuring instruments are to use dry batteries as the power supply. Therefore, the batteries must be replaced frequently to continue the detection; however, frequent replacement of the batteries causes great inconvenience in use. Furthermore, if a dry battery is replaced with a rechargeable battery and a standard USB connector is used, the external charger design must comply with the LVD (Low Voltage Directive) low voltage directive specification developed by the European Union IEC International Electrotechnical Commission, such as IEC-61010-1. Wait. Among them, the requirements for human body contact protection requirements are quite different from those of common consumer 3C product design specifications. If the user uses a general external charger and simultaneously measures the high voltage, it will cause electric shock to the user, so it should not be inadvertent.

In view of the above, the present inventors have made great efforts to study and cooperate with the application of the theory, and finally propose a present invention which is reasonable in design and effective in improving the above-mentioned defects.

It is an object of the present invention to provide a meter with a charge switching protection mechanism that provides a protection mechanism through a stop to ensure that the meter cannot be measured while charging using a standard USB charger to avoid danger. .

In order to achieve the above object, the present invention is a meter with a charging switching protection mechanism, the measuring body comprises a housing and a knob transfer, and the housing is provided with a charging socket; the control module is disposed in the housing, including the circuit board And a connector, the connector is corresponding to the charging socket setting, the circuit board is electrically connected to the knob, and is selectively actuated by the rotation of the knob group; the charging unit is disposed in the housing and electrically connected to the connector; The stop is interlocked with the knob and the external plug is plugged into the connector from the charging socket, and the stop is actuated to prevent the knob from rotating.

In order to achieve the above object, the present invention is a meter with a charging switching protection mechanism, the measuring body comprises a housing and a knob group coupled to the housing, and the housing is provided with a charging socket; the control module is disposed at The housing includes a circuit board, a connector for electrically connecting the circuit board, and a plurality of connecting terminals, the connector is corresponding to the charging socket, the circuit board is electrically connected to the knob, and is selectively caused by the rotation of the knob group The charging unit is disposed in the housing, the charging unit is electrically connected to the connector; the driving member is disposed on the circuit board and is driven by the knob to rotate; and the shielding plate is driven by the driving member and can selectively shield the guiding terminals; Wherein, the external plug is inserted into the connector from the charging socket, and the shielding plate is driven by the driving member to shield the guiding terminals.

Compared with the prior art, the scale with the charging switching protection mechanism of the present invention includes a knob turning group and a stopping portion, the stopping portion is interlocked with the knob rotating group, and the charging socket is provided in the housing, and when the equivalent meter is charged, The knob rotation will be rotated to the corresponding charging indication position. At this time, the stopper will be deflected to the upper side of the connector as the knob is rotated, whereby the external plug will be placed in the stopper. Knob turn The group does not rotate, whereby when the meter is charging, the knob group cannot be rotated to the indicated position of the measuring function, and accordingly, the stop portion can be used as a charging switching protection mechanism of the charging sheet, thereby increasing the number The safety and practicality of the invention.

1‧‧‧ scale

2‧‧‧External plug

10‧‧‧Measurement ontology

11‧‧‧Shell

110, 110a‧‧‧ charging socket

111‧‧‧Operation surface

112‧‧‧Outside

113‧‧‧Control hole

114‧‧‧ lead hole

12‧‧‧ knob grouping

120‧‧‧ gap

121‧‧‧ knob

122‧‧‧ Turntable

13‧‧‧Display unit

14‧‧‧ Guide column

20‧‧‧Control Module

21‧‧‧ boards

22, 22a‧‧‧ connectors

23‧‧‧Control keys

24‧‧‧Connecting terminal

30‧‧‧Charging unit

40‧‧‧stop

50‧‧‧Drives

51‧‧‧Bump

60‧‧‧ visor

61‧‧‧Perforation

62‧‧‧ Guide slot

1 is a perspective exploded view of a scale with a charge switching protection mechanism of the present invention.

2 is a schematic plan view showing the combination of the gauges of the present invention with a charge switching protection mechanism.

Figure 3 is a schematic illustration of the rotation of the gauge of the present invention when it is intended to be charged.

Fig. 4 is a cross-sectional view showing the plug when the gauge of the present invention is charged.

Figure 5 is another embodiment of a charging socket of the gauge of the present invention.

Figure 6 is another embodiment of the meter of the present invention having a charge switching protection mechanism.

Figure 7 is a plan view showing another embodiment of the scale with the charge switching protection mechanism of the present invention when it is to be charged.

The detailed description and technical content of the present invention are set forth in the accompanying drawings.

Please refer to FIG. 1 and FIG. 2 , which are respectively a perspective exploded view of the meter with the charging switching protection mechanism of the present invention and a schematic plan view of the combination. The gauge 1 with the charging switching protection mechanism of the present invention includes a measuring body 10, a control module 20, a charging unit 30 and a stopping portion 40. The control module 20, the charging unit 30 and the stopping portion 40 are disposed on the measuring body 10, and the charging unit 30 is charged through the control module 20; further, the stopping portion 40 is charged Block 30 is blocked when charging It is used to prevent the scale 1 from being measured, and accordingly, the stopper 40 serves as a charging switching protection mechanism of the charging unit 30.

The measuring body 10 includes a housing 11 and a knob swivel 12 coupled to the housing 11, and the housing 11 is provided with a charging socket 110. Preferably, the knob rotating set 12 includes the housing exposed A knob 121 of the body 11 and a turntable 122 driven by the knob 121.

The control module 20 is disposed in the housing 11 and includes a circuit board 21 and a connector 22 electrically connected to the circuit board 21; further, the connector 22 is disposed corresponding to the charging socket 110, and the circuit board 21 The knob group 12 is electrically connected and selectively actuated by the rotation of the knob group 12 for measurement.

In this embodiment, the control module 20 further includes a plurality of control keys 23 and a plurality of conductive terminals 24, and the control keys 23 and the conductive terminals 24 electrically connect the circuit board 21. In addition, the housing 11 is provided with a plurality of control holes 113 corresponding to the control keys 23, and a plurality of guiding holes 114 are opened corresponding to the guiding terminals 24, according to which the control keys 23 and the guides are The terminal 24 can expose the housing 11 from the control holes 113 and the guiding holes 114 respectively.

In addition, the measuring unit 10 further includes a display unit 13 disposed in the housing 11 and electrically connected to the circuit board 21.

In this embodiment, the housing 11 includes an operation surface 111 exposing the display unit 13 and an outer side surface 112 adjacent to the operation surface 111. Preferably, the charging socket 110 is located on the operating surface 111, and the connector 22 is inserted into the operating surface 111; that is, when the meter 1 is being charged, the external plug is plugged into the housing. The operating surface 111 of the body 11.

Moreover, the charging unit 30 is disposed in the housing 11 , and the charging unit 30 is electrically connected to the connector 22 . In addition, the stopping portion 40 is interlocked with the knob rotating group 12 as an external plug (not shown) When the connector 22 is inserted from the charging socket 110, the stopping portion 40 is actuated to prevent the knob group 12 from rotating.

In an embodiment of the present invention, the stop portion 40 is a notch 120 disposed on the turntable 122. The external plug can be inserted into the connector 22 through the notch 120 from the charging socket 110, and the knob is The transfer 12 does not cause a rotation.

It should be noted that the implementation of the stop portion 40 is not limited to the gap in the embodiment. In actual implementation, the stop portion 40 is only required to block the rotation of the knob 12 .

Furthermore, the scale 1 with the charging switching protection mechanism of the present invention further includes a driving member 50 and a shielding plate 60. The driving member 50 is disposed on the circuit board 21 and is driven by the rotating plate 122. The shielding plate 60 is received by the rotating plate 122. The driving member 50 drives. In more detail, one end of the driving member 50 has a protruding post 51. The shielding plate 60 is correspondingly provided with a through hole 61. The driving member 50 is inserted through the protruding post 51 in the through hole 6 to drive the cover. The board 60 moves.

Preferably, the shutter 60 is further provided with a plurality of guiding slots 62. The housing 11 is provided with a plurality of guiding posts 14 corresponding to the guiding slots 62. The shielding plate 60 is disposed through the guiding slots 62. The guide posts 14 are movable along the extending direction of the guide grooves 62.

It should be noted that the shape of the shutter 60 is disposed corresponding to the positions of the guiding holes 114. Accordingly, the shutter 60 can selectively block the guiding holes 114 when the shutter 60 moves. . In this embodiment, when the shutter 60 is received by the driving member 50, the shutter 60 moves longitudinally along the guiding slots 62 (longitudinally extending) and is selectively shielded inside the housing 11 to selectively shield the shielding member 60. The guiding holes 114.

As shown in FIG. 2, the scale 1 of the charging switching protection mechanism of the present invention rotates to the corresponding measurement function indication when the measurement is performed. At this time, the notch 120 (stop portion) 40) When the knob 12 is rotated, the connector 22 is deflected to one side of the connector 22, that is, when the measurement is performed, the connector 22 of the gauge 1 is not exposed, so when measuring, Scale 1 cannot be charged.

In addition, when the measurement is performed, the driving member 50 drives the shutter 60 to move upwards as the knob rotating group 12 rotates. At this time, the shutter 60 does not block the guiding members. The holes 114 are such that the conductive terminals 24 are exposed. Accordingly, external measurement terminals (not shown) can be plugged onto the conductive terminals 24 for measurement.

3 and FIG. 4 are respectively a schematic diagram of the rotation when the gauge of the present invention is to be charged and a plug-in cross-sectional view during charging. As shown in FIG. 3, when the meter 1 of the present invention is to be charged, the knob group 12 must first be rotated to the corresponding charging indication position. At this time, the notch 120 (the stopper 40) will follow the The rotation of the knob group 12 is deflected to the upper side of the connector 22, that is, when charging is performed, the connector 22 of the gauge 1 exposes the notch 120, so that the external plug passes through the charging socket 110. The connector 22 is plugged into the notch 120.

In addition, when the charging is performed, the driving member 50 will move the shutter 60 downwardly as the knob rotating group 12 rotates. At this time, the shutter 60 blocks the guiding holes 114. The guiding terminals 24 are also shielded at the same time without being exposed. According to this, the external measuring terminal can be inserted into the guiding terminals 24, so that the measurement cannot be performed.

As shown in FIG. 4, when an external plug 2 is inserted into the connector 22 from the charging socket 110 of the housing 11 through the notch 120, the external plug 2 is placed in the notch 120 (the stopper 40). The knob group 12 is not caused to rotate. Therefore, when the meter 1 is being charged, the knob group 12 of the gauge 1 cannot be rotated to the indicated position of the measurement function, and the circuit board 21 cannot be actuated by the rotation of the knob group 12.

Please refer to FIG. 5 as another embodiment of the charging socket of the gauge of the present invention. This embodiment is substantially the same as the previous embodiment. The scale 1 with the charging switching protection mechanism includes a measuring body 10, a control module 20, a charging unit 30 and a stopping portion 40. Moreover, the measuring body 10 includes a housing 11 and a knob set 12, and the housing 11 is provided with a charging socket 110. In addition, the control module 20 includes a circuit board 21 and a connector 22 . This embodiment differs from the previous embodiment in the direction of the socket of the connector 22.

In this embodiment, the housing 11 includes an operation surface 111 and an outer side surface 112 adjacent to the operation surface 111. Further, the charging socket 110 is located on the outer side surface 112, and the connector 22 is oriented in the plugging direction. The outer side surface 112; that is, when the meter 1 is being charged, the external plug is inserted into the outer side surface 112 of the housing 11.

Please refer to FIG. 6 and FIG. 7 respectively, which are respectively a perspective exploded view of another embodiment of the meter with a charging switching protection mechanism of the present invention and a schematic plan view during charging. This embodiment is substantially the same as the previous embodiment, and differs in the implementation of the charging switching protection mechanism. In the embodiment, the gauge 1 with the charging switching protection mechanism includes a measuring body 10, a control module 20, a charging unit 30, a driving member 50 and a shutter 60. An embodiment of the charge switching protection mechanism is described in more detail below.

As shown in FIG. 6, the measuring body 10 includes a housing 11 and a knob swivel 12 coupled to the housing 11, and the housing 11 is provided with a charging socket 110a; preferably, the knob is turned 12 includes a knob 121 and a turntable 122. The control module 20 is disposed in the housing 11 and includes a circuit board 21, a connector 22a electrically connected to the circuit board 21, and a plurality of conductive terminals 24; further, the connector 22 corresponds to the charging socket 110. The circuit board 21 is electrically connected to the knob group 12 and selectively actuated by the rotation of the knob group 12 for measurement. Moreover, the charging unit 30 is disposed in the housing 11, and the charging unit 30 is electrically connected to the connector 22a.

Moreover, the driver 50 is disposed on the circuit board 21 and is driven by the knob group 12. Moreover, the shutter 60 is driven by the driving member 50 and can selectively shield the guiding terminals 24. In this embodiment, an external plug is inserted into the connector 22a from the charging socket 110a. At this time, the shutter 60 is shielded by the driving member 50 to shield the guiding terminals 24. It should be noted that the operation manner of the shutter 60 and the driving member 50 is as described above, and details are not described herein again.

As shown in FIG. 7 , when the charging device 50 is used, the driving member 50 moves the shutter 60 downwards according to the rotation of the knob group 12 . At this time, the shutter 60 blocks the guiding terminals 24 . Without being exposed, the external measuring terminals can be prevented from being plugged into the guiding terminals 24, so that the measurement cannot be performed, thereby achieving the protection mechanism during charging.

The above is only the preferred embodiment of the present invention, and is not intended to limit the scope of the invention, and other equivalent variations of the patent spirit of the present invention are all within the scope of the invention.

1‧‧‧ scale

10‧‧‧Measurement ontology

11‧‧‧Shell

12‧‧‧ knob grouping

120‧‧‧ gap

121‧‧‧ knob

122‧‧‧ Turntable

13‧‧‧Display unit

14‧‧‧ Guide column

20‧‧‧Control Module

21‧‧‧ boards

22‧‧‧Connector

23‧‧‧Control keys

24‧‧‧Connecting terminal

40‧‧‧stop

50‧‧‧Drives

51‧‧‧Bump

60‧‧‧ visor

61‧‧‧Perforation

62‧‧‧ Guide slot

Claims (14)

A meter with a charging switching protection mechanism includes: a measuring body comprising a housing and a knob transfer combined with the housing, and the housing is provided with a charging socket; a control module is disposed at The housing includes a circuit board and a connector electrically connected to the circuit board. The connector is disposed corresponding to the charging socket, and the circuit board is electrically connected to the knob and is rotated by the knob. And selectively actuating; a charging unit disposed in the housing, the charging unit is electrically connected to the connector; and a stopping portion is a notch disposed on the turntable and interlocking with the knob An external plug is inserted into the connector from the charging socket through the notch, and the external plug is placed in the notch so that the knob is not rotated to the indicated position of the measuring function. The meter of claim 1 has a charging switching protection mechanism, wherein the measuring body further comprises a display unit disposed in the housing and electrically connected to the circuit board. The scale of the charging switching protection mechanism according to claim 1, wherein the knob group includes a knob that exposes the housing and a turntable driven by the knob. The meter of the charging switching protection mechanism of claim 3, further comprising a driving member and a shielding plate, the driving member is disposed on the circuit board and driven by the rotating plate, and the shielding plate is driven by the driving member . The meter of the charging switching protection mechanism of claim 4, wherein the control module further comprises a plurality of guiding terminals, and the shielding plate is driven by the driving member to selectively shield the guiding terminals. The scale of the charging switching protection mechanism of claim 5, wherein one end of the driving member has a stud, and the shielding plate is correspondingly provided with a through hole, and the driving member is disposed in the through hole through the protruding post. And can drive the shutter to move. The scale of the charging switching protection mechanism of claim 6, wherein the shutter is provided with a plurality of guiding slots, and the housing is provided with a plurality of guiding columns corresponding to the guiding slots, and the shielding plate passes through the guiding slots. The guide posts are placed to be movable along the extending direction of the guide grooves. A meter with a charge switching protection mechanism as claimed in claim 1, wherein the control module further includes a plurality of control keys that expose the housing and electrically connect the circuit board. A meter having a charge switching protection mechanism according to claim 2, wherein the housing includes an operation surface exposing the display unit and an outer side adjacent to the operation surface. A meter having a charge switching protection mechanism according to claim 9, wherein the charging socket is located on the operation surface, and the plugging direction of the connector is toward the operation surface. A meter having a charge switching protection mechanism according to claim 9, wherein the charging socket is located on the outer side, and the connector is inserted in a direction toward the outer side. A meter with a charging switching protection mechanism includes: a measuring body comprising a housing and a knob transfer combined with the housing, and the housing is provided with a charging socket; a control module is disposed in the housing, and includes a circuit board, a connector electrically connected to the circuit board, and a plurality of conductive terminals, wherein the connector is disposed corresponding to the charging socket, and the circuit board is electrically connected The knob is swiveled and selectively actuated by the rotation of the knob group; a charging unit is disposed in the housing, the charging unit is electrically connected to the connector; and a driving member is disposed on the circuit board And being driven by the knob to be rotated; and a shutter driven by the driving member and capable of selectively shielding the guiding terminals; wherein an external plug is inserted into the connector from the charging socket, the shielding plate is received The driving member drives and shields the guiding terminals without causing external measuring terminals to be plugged on the conductive terminals for measurement. The scale of the charging switching protection mechanism of claim 12, wherein one end of the driving member has a stud, and the shielding plate is correspondingly provided with a through hole, and the driving member is disposed in the through hole through the protruding post. And can drive the shutter to move. The scale of the charging switching protection mechanism of claim 13, wherein the shutter is provided with a plurality of guiding slots, and the housing is provided with a plurality of guiding columns corresponding to the guiding slots, and the shielding plate passes through the guiding slots. The guide posts are placed to be movable along the extending direction of the guide grooves.