CN219938400U - Power supply circuit, scanner host and scanner assembly - Google Patents

Abstract

The present disclosure relates to a power supply circuit, a scanner host, and a scanner assembly; the power supply circuit includes: a power connection unit; the power connection unit is provided with a first interface and a second interface; the first interface is connected with the battery, and the second interface is connected with the scanning assembly; the power receiving unit is used for supplying power to the battery through the first interface and supplying power to the scanning assembly through the second interface. In this way, the battery can be charged through the power connection unit, and when the battery is charged, the power connection unit can also supply power for the scanning assembly body, so that the problem that the battery cannot supply power for the scanning device to cause the power failure of the scanning device when the battery of the scanning device is charged is solved.

Description

Power supply circuit, scanner host and scanner assembly

Technical Field

The present disclosure relates to the field of scanners, and more particularly, to a power supply circuit, a scanner host, and a scanner assembly.

Background

The scanner can be widely applied to the fields of professional scanning, industrial scanning, oral scanning and the like. In order to make the scanner volume smaller, the existing partial scanner sets up charging circuit on independent charging device in order to reduce the volume of scanner, but has led to charging device when being for the built-in battery of scanner, charging device and built-in battery can't all be for scanner body power supply, promptly the in-process that built-in battery charges, scanner body is in the power down state, if it is in the power down state, the operator need restart the scanner to use, can consume waiting for the time of start. If the scanner is applied to oral scanning, doctors and patients are required to wait for restarting the scanner, so that the treatment time is prolonged.

Disclosure of Invention

In order to solve the technical problems, the present disclosure provides a power supply circuit, a scanner host and a scanner assembly.

In a first aspect, the present disclosure provides a power supply circuit comprising:

a power connection unit;

the power connection unit is provided with a first interface and a second interface;

the first interface is connected with a battery, and the second interface is connected with a scanning assembly;

the power receiving unit is used for supplying power to the battery through the first interface and supplying power to the scanning assembly through the second interface.

Optionally, the device further comprises a switch unit;

the switch unit is provided with a third interface and a fourth interface;

the fourth interface is connected with the battery, and the scanning assembly, the second interface and the third interface are communicated with each other;

the power connection unit is also used for outputting a level signal to the switch unit through a second interface and the third interface; the switch unit is used for controlling the on-off between the battery and the scanning assembly;

when the switch unit receives the level signal, the switch unit is disconnected, and the power-on unit supplies power to the scanning assembly through the second interface;

when the switch unit is not connected to the level signal, the switch unit is turned on; the power receiving unit supplies power to the battery through the first interface, and the battery supplies power to the scanning assembly through the switch unit.

Optionally, the switch unit comprises a P-type MOS tube and a unidirectional conducting piece;

the source electrode of the P-type MOS tube is used as the fourth interface to be connected with the battery, and the drain electrode of the P-type MOS tube is used as the third interface to be connected with the scanning assembly;

the input end of the unidirectional conducting component is connected with the second interface, and the output end of the unidirectional conducting component is connected with the drain electrode of the P-type MOS tube and the scanning component;

and the grid electrode of the P-type MOS tube is connected between the second interface and the input end of the one-way conducting piece.

Optionally, the unidirectional conductive element comprises a diode.

Optionally, the output voltage of the second interface is greater than the output voltage of the battery.

Optionally, the device further comprises a voltage dividing unit;

the voltage dividing unit is connected between the second interface and the drain electrode of the P-type MOS tube.

Optionally, the power connection unit further comprises a power connection pin;

the power connection pin is connected with the first interface and the second interface;

the power connection pin is also used for being connected with a power supply device, so that the power supply device outputs electric energy for the first interface and the second interface through the power connection pin.

Optionally, the power connection unit further comprises an access detection pin;

the access detection pin is connected with the scanning assembly;

the access detection pin is further used for being connected with the power supply device, the scanning assembly outputs a connection signal to the power supply device through the access detection pin, and the power supply device outputs electric energy for the first interface and the second interface through the power connection pin based on the connection signal.

In a second aspect, the present disclosure also provides a scanner host comprising a battery pack comprising the power supply circuit of any one of the first aspects, the scanner host being wired or wireless.

In a third aspect, the present disclosure further provides a scanner assembly comprising a power supply device and a scanner host according to the second aspect, the power supply device being detachably connected to the scanner host;

when the scanner host is installed on the power supply device, the power supply device supplies power to the scanning assembly through the second interface;

when the scanner host is disconnected from the power supply, the battery supplies power to the scanning assembly.

The present disclosure provides a power supply circuit, a battery pack, and a scanner; the power supply circuit includes: a power connection unit; the power connection unit is provided with a first interface and a second interface; the first interface is connected with the battery, and the second interface scans the assembly; the power receiving unit is used for supplying power to the battery through the first interface and supplying power to the scanning assembly through the second interface. In this way, the battery can be charged through the power connection unit, and when the battery is charged, the power connection unit can also supply power for the scanning assembly body, so that the problem that the battery cannot supply power for the scanning device to cause the power failure of the scanning device when the battery of the scanning device is charged is solved.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the disclosure and together with the description, serve to explain the principles of the disclosure.

In order to more clearly illustrate the embodiments of the present disclosure or the solutions in the prior art, the drawings that are required for the description of the embodiments or the prior art will be briefly described below, and it will be obvious to those skilled in the art that other drawings can be obtained from these drawings without inventive effort.

Fig. 1 is a schematic diagram of a power supply circuit according to an embodiment of the disclosure;

fig. 2 is a schematic structural diagram of another power supply device according to an embodiment of the disclosure;

fig. 3 is a schematic structural diagram of another power supply device according to an embodiment of the disclosure.

Detailed Description

In order that the above objects, features and advantages of the present disclosure may be more clearly understood, a further description of aspects of the present disclosure will be provided below. It should be noted that, without conflict, the embodiments of the present disclosure and features in the embodiments may be combined with each other.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present disclosure, but the present disclosure may be practiced otherwise than as described herein; it will be apparent that the embodiments in the specification are only some, but not all, embodiments of the disclosure.

Fig. 1 is a schematic diagram of a power supply circuit according to an embodiment of the present disclosure, including:

a power receiving unit 11; the power receiving unit 11 is provided with a first interface 111 and a second interface 112; the first interface 111 is connected with the battery 12, and the second interface 112 is connected with the scanning assembly 13; the power receiving unit 11 is used for supplying power to the battery 12 through the first interface 111 and supplying power to the scanning assembly 13 through the second interface 112.

Specifically, the power receiving unit 11 may be connected to an external power source, or the power receiving unit 11 may be internally provided with a power source, and the scanning assembly 13 may be a scanning device for scanning the shape of the object; the power connection unit 11 can output electric energy through the first interface 111 and the second interface 112 respectively, and after the scanning assembly 13 and the battery 12 are connected, the power connection unit 11 supplies power to the scanning assembly 13 and the battery 12 at the same time; that is, while the battery 12 is charged, the power receiving unit 11 can also supply power to the scanning assembly 13, so that the scanning assembly 13 is prevented from being powered down. The battery 12 in this embodiment is shown as a functional device for supplying power to the scanning assembly 13, and the battery 12 cannot supply power to the scanning assembly 13 when the power receiving assembly charges the battery 12.

That is, through the above device, in the embodiment of the disclosure, the battery 12 may be charged by the power connection unit 11, and the power connection unit 11 may also supply power to the scan component 13 body while charging the battery 12, so as to solve the problem that the battery 12 cannot supply power to the scan device when charging the battery 12 of the scan device, which results in power failure of the scan device.

Fig. 2 is a schematic structural diagram of another power supply device 17 according to an embodiment of the disclosure; in some embodiments, a switching unit 14 is also included; the switching unit 14 is provided with a third interface 141 and a fourth interface 142; the fourth interface 142 is connected with the battery 12, and the scanning assembly 13, the second interface 112 and the third interface 141 are communicated with each other; the power receiving unit 11 is further configured to output a level signal to the switching unit 14 through the second interface 112 and the third interface 141; the switch unit 14 is used for controlling the on-off between the battery 12 and the scanning assembly 13; when the switching unit 14 receives the level signal, the switching unit 14 is turned off, and the power connection unit 11 supplies power to the scanning assembly 13 through the second interface 112; when the switching unit 14 does not receive the level signal, the switching unit 14 is turned on; the power receiving unit 11 supplies power to the battery through the first interface 111, and the battery 12 supplies power to the scanning assembly 13 through the switching unit 14.

With continued reference to the above embodiment, the power supply device 17 may specifically further include a switch unit 14, where the switch unit 14 is configured to control on and off of the passage between the battery 12 and the scanning assembly 13. While the power-on unit 11 provides power to the battery 12 and the scanning assembly 13, the power-on unit 11 may also provide power to the switching unit 14, i.e. in fact provide a level signal; the switch unit 14 is switched to an off state based on the received level signal, and the battery 12 cannot supply power to the scanning assembly 13 through a path formed by the battery 12-the switch unit 14-the scanning assembly 13 when the switch unit 14 is in the off state; when the power-on unit 11 no longer provides power to the battery 12 and the scanning assembly 13, the power-on unit 11 no longer provides power to the switching unit 14, i.e. no longer provides a level signal, the switching unit 14 is in a conductive state when no level signal is received, and the battery 12 can supply power to the scanning assembly 13 through a path formed by the battery 12-the switching unit 14-the scanning assembly 13.

Based on the above-mentioned setting, the embodiment of the disclosure can realize that scanning assembly 13 does not fall power when battery 12 charges, and battery 12 no longer supplies power for scanning assembly 13 any more, and after battery 12 and scanning equipment stop charging, battery 12 can continue to supply power for scanning assembly 13, i.e. whether battery 12 is in the state of charge, scanning assembly 13 does not fall power, has realized that scanning equipment's whole journey does not fall power. Based on this, when the scanner provided with the power supply circuit provided by the embodiment of the disclosure is used by an operator, the scanner is not powered down after being charged, so that the scanner does not need to be restarted, and the time waiting for starting up is not consumed. If the scanner provided with the power supply circuit provided by the embodiment of the disclosure is applied to oral scanning, doctors and patients do not need to wait for restarting the scanner, so that the treatment time is shortened.

Fig. 3 is a schematic structural diagram of another power supply device 17 according to an embodiment of the disclosure; in some embodiments, switching unit 14 includes P-type MOS transistor 143 and unidirectional conductive member 144; the source electrode of the P-type MOS tube 143 is used as a fourth interface 142 to be connected with the battery 12, and the drain electrode of the P-type MOS tube 143 is used as a third interface 141 to be connected with the scanning component 13; the input end of the unidirectional conducting component 144 is connected with the second interface 112, and the output end of the unidirectional conducting component 144 is connected with the drain electrode of the P-type MOS tube 143 and the scanning component 13; the gate of P-type MOS transistor 143 is connected between second interface 112 and the input of unidirectional conductive element 144.

In some embodiments, unidirectional conductive element 144 comprises a diode.

Specifically, with continued reference to the embodiment of fig. 2 described above, the switching unit 14 may include a P-type MOS transistor 143 and a unidirectional conductive element 144, in some embodiments, a parasitic diode 145 may be present within the P-type MOS transistor, which may also be referred to as a body diode in some scenarios; the input end of the parasitic diode 145 is connected with the source electrode of the P-type MOS tube 143, and the output end of the parasitic diode 145 is connected with the drain electrode of the P-type MOS tube 143; the unidirectional conductive element 144 may be a diode.

As shown in fig. 3, when the second interface 112 does not output power to the scan component 13/provides a level signal to the third interface 141, the voltage of the drain of the P-type MOS transistor 143 may be approximately equal to the output voltage of the battery 12 through the parasitic diode 145, and the voltage of the source of the P-type MOS transistor 143 may be considered to be approximately equal to zero, and based on the characteristics of the P-type MOS transistor 143, the P-type MOS transistor 143 is in a conductive state at this time, and the battery 12 may supply power to the scan component 13.

When the second interface 112 supplies the level signal to the scan element 13 and the third interface 141, the voltage at the drain of the P-type MOS transistor 143 may be considered to be approximately equal to the output voltage of the second interface 112, and the P-type MOS transistor 143 is in an off state, based on the characteristics of the P-type MOS transistor 143, the voltage at the source of the P-type MOS transistor 143 needs to be greater than the voltage at the drain of the P-type MOS transistor 143, and the voltage at the drain of the P-type MOS transistor 143 is approximately equal to the output voltage of the battery 12, so in some embodiments, the output voltage of the second interface 112 is greater than the output voltage of the battery 12. When P-type MOS transistor 143 is in the off state, battery 12 cannot power scan element 13.

In some embodiments, a voltage dividing unit 15 is also included; the voltage dividing unit 15 is connected between the second interface 112 and the drain of the P-type MOS transistor 143.

With continued reference to fig. 3, a voltage dividing unit 15 may also be provided, and the voltage dividing unit 15 may be a resistor. By the arrangement of the voltage dividing unit, the voltage of the drain electrode of the P-type MOS tube 143 can be divided, so that the voltage of the drain electrode of the P-type MOS tube 143 is larger than the voltage of the source electrode of the P-type MOS tube 143.

With continued reference to fig. 3, a grounding unit 16 may also be provided, where the grounding unit 16 may include a resistor, and one end of the resistor is connected to the second interface 112, and the other end is grounded.

With continued reference to fig. 3, in some embodiments, the power-on unit 11 further includes a power-on pin 113; the power connection pin 113 connects the first interface 111 and the second interface 112 (connection relationship is not shown in fig. 3); the power connection pin 113 is further used for connecting with the power supply device 17, so that the power supply device 17 outputs electric energy to the first interface 111 and the second interface 112 through the power connection pin 113.

Specifically, the power connection pins 113 may be used to connect to the external power supply device 17, where the power supply device 17 outputs electric energy to the first interface 111 and the second interface 112 through the power connection pins 113, and in some embodiments, the number of the power connection pins 113 may be only one, or may be plural, which is not limited herein.

With continued reference to fig. 3, in some embodiments, the power unit 11 further includes an access detection pin 114; the access detection pin 114 is connected with the scanning component 13; the access detection pin 114 is also used to connect to the power supply device 17 (connection relationship is not shown in fig. 3), the scan module 13 outputs a connection signal to the power supply device 17 through the access detection pin 114, and the power supply device 17 outputs electric power to the first interface 111 and the second interface 112 through the power connection pin 113 based on the connection signal.

Specifically, whether the scanning device is connected to the power supply device 17 may be detected through the access detection pin 114, when the scanning component 13 is connected to the power supply device 17, the scanning component 13 may output a connection signal to the power supply device 17, and the power supply device 17 receives the connection signal to represent that the scanning component 13 has been accessed, and the power supply component starts to output electric energy to the first interface 111 and the second interface 112.

With continued reference to fig. 3, the circuit may further include an energy storage unit 18, where the energy storage unit 18 may be a capacitor, and the scan assembly 13 may be powered by the energy storage unit 18 for a short period of time.

With continued reference to fig. 3, the circuit may further include an overvoltage protection unit 19, where the overvoltage protection unit 19 is connected to the access detection pin 114, the second interface 112, and the first interface 111.

As a possible embodiment, if the scanning component is a scanner or a part of a scanner, the output voltage of the second interface 112 may be 4.2V, the output voltage of the battery may be 3.6V, the resistance value of the voltage dividing unit 15 may be 100kΩ, the resistance value of the grounding unit 16 may be 3kΩ, and the capacitance value of the energy storage unit 18 may be 100nF.

Embodiments of the present disclosure also provide a scanner host including a battery pack including a power supply circuit as in any of the power supply circuit embodiments described above, the scanner host being wired or wireless. The scanner host can be applied to the fields of professional scanning, industrial scanning, oral scanning and the like.

The scanner host provided by the embodiment of the present disclosure includes the power supply circuit in the above embodiment, so that the same or at least similar technical effects as those of the above power supply circuit embodiment can be achieved.

The present disclosure also provides a scanner assembly, including a power supply device and a scanner host as in the scanner host embodiment described above, the power supply device being detachably connected to the scanner host;

when the scanner host is arranged on the power supply device, the power supply device supplies power to the scanning assembly through the second interface;

when the scanner host is disconnected from the power supply, the battery supplies power to the scanning assembly.

The scanner assembly provided by the embodiment of the present disclosure includes the scanner host in the above embodiment, so that the same or at least similar technical effects as those of the above scanner host embodiment can be achieved. The scanner assembly provided by the embodiment of the disclosure can be applied to the fields of professional scanning, industrial scanning, oral scanning and the like.

In another embodiment, the scanner assembly of the present utility model may further be provided with a Charge chip (Charge management chip) to realize automatic switching of power channels, and integrate the powerath function, and part of the circuits of the Charge chip cannot be separated from the motherboard, so that the motherboard area is increased, and the volume of the scanner host is slightly larger than that of the scanner of fig. 1-3, and compared with the embodiments of fig. 1-3, the scanner of fig. 1-3 is smaller and is suitable for being applied to an oral scanner.

It should be noted that in this document, relational terms such as "first" and "second" and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.

The foregoing is merely a specific embodiment of the disclosure to enable one skilled in the art to understand or practice the disclosure. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the disclosure. Thus, the present disclosure is not intended to be limited to the embodiments shown and described herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims (9)

1. A power supply circuit, comprising:

a power connection unit;

the power connection unit is provided with a first interface and a second interface;

the first interface is connected with a battery, and the second interface is connected with a scanning assembly;

the power receiving unit is used for supplying power to the battery through the first interface and supplying power to the scanning assembly through the second interface;

the power supply circuit further comprises a switch unit;

the switch unit is provided with a third interface and a fourth interface;

the fourth interface is connected with the battery, and the scanning assembly, the second interface and the third interface are communicated with each other;

the power connection unit is also used for outputting a level signal to the switch unit through a second interface and the third interface; the switch unit is used for controlling the on-off between the battery and the scanning assembly;

when the switch unit receives the level signal, the switch unit is disconnected, and the power-on unit supplies power to the scanning assembly through the second interface;

when the switch unit is not connected to the level signal, the switch unit is turned on; the power receiving unit supplies power to the battery through the first interface, and the battery is used for supplying power to the scanning assembly through the switch unit.

2. The circuit of claim 1, wherein the switching unit comprises a P-type MOS transistor and a unidirectional conducting element;

the source electrode of the P-type MOS tube is used as the fourth interface to be connected with the battery, and the drain electrode of the P-type MOS tube is used as the third interface to be connected with the scanning assembly;

the input end of the unidirectional conducting component is connected with the second interface, and the output end of the unidirectional conducting component is connected with the drain electrode of the P-type MOS tube and the scanning component;

and the grid electrode of the P-type MOS tube is connected between the second interface and the input end of the one-way conducting piece.

3. The circuit of claim 2, wherein the unidirectional conductive element comprises a diode.

4. The circuit of claim 2, wherein an output voltage of the second interface is greater than an output voltage of the battery.

5. The circuit of claim 2, further comprising a voltage dividing unit;

the voltage dividing unit is connected between the second interface and the drain electrode of the P-type MOS tube.

6. The circuit of claim 1, wherein the power-up unit further comprises a power-up pin;

the power connection pin is connected with the first interface and the second interface;

the power connection pin is also used for being connected with a power supply device, so that the power supply device outputs electric energy for the first interface and the second interface through the power connection pin.

7. The circuit of claim 6, wherein the power up unit further comprises an access detect pin;

the access detection pin is connected with the scanning assembly;

the access detection pin is further used for being connected with the power supply device, the scanning assembly outputs a connection signal to the power supply device through the access detection pin, and the power supply device outputs electric energy for the first interface and the second interface through the power connection pin based on the connection signal.

8. A scanner host comprising a battery pack, the battery pack comprising the power supply circuit of any one of claims 1-7, the scanner host being wired or wireless.

9. A scanner assembly comprising a power supply device and the scanner host of claim 8, wherein the power supply device is detachably connected with the scanner host;

when the scanner host is installed on the power supply device, the power supply device supplies power to the scanning assembly through the second interface;

when the scanner host is disconnected from the power supply, the battery supplies power to the scanning assembly.