Trolley, mobile battery pack, ultrasonic power supply system and ultrasonic imaging system

Abstract

The embodiment of the utility model provides a trolley, a mobile battery pack, an ultrasonic power supply system and an ultrasonic imaging system. The trolley comprises a commercial power supply module, a first interface, a second interface, a third interface, a portable ultrasonic equipment detection module and a first control module; the second interface is used for being connected with a fourth interface of the portable ultrasonic equipment, and the third interface is used for being connected with a fifth interface of the mobile battery pack; the input end of the commercial power supply module is connected with the first interface, and the output end is connected with the second interface and the third interface. The first control module is used for receiving the load information sent by the portable ultrasonic equipment detection module, generating a charging control signal based on the load information and sending the charging control signal to the mobile battery pack through the third interface. By adopting the scheme, the trolley can supply power to the portable ultrasonic equipment and the mobile battery pack at the same time and support the mobile battery pack to switch between fast charging and slow charging according to the load information of the portable ultrasonic equipment.

Description

Technical Field

[0001] This utility model relates to the field of ultrasonic equipment technology, specifically to a trolley, a mobile battery pack, an ultrasonic power supply system, and an ultrasonic imaging system. Background Technology

[0002] In the field of ultrasound equipment, with the development of technology and the needs of application scenarios, miniaturized and lightweight ultrasound equipment has gradually emerged, namely portable ultrasound devices (PUDs). Portable ultrasound devices are widely used in clinical diagnosis, emergency medical care, and telemedicine. Compared with traditional desktop ultrasound equipment, portable ultrasound devices offer greater flexibility and convenience, providing immediate imaging diagnostic support in various environments.

[0003] Portable ultrasound devices typically have built-in battery packs. To increase the battery life of portable ultrasound devices, given a fixed power consumption, the following solutions are commonly used:

[0004] 1. Increase the battery capacity of portable ultrasound devices. This method will increase the size and weight of portable ultrasound devices, which is not conducive to the flexibility of carrying and using portable products.

[0005] 2. Provide a trolley for the portable ultrasound device. After the portable ultrasound device is connected to the trolley, the trolley charges the built-in battery pack of the portable ultrasound device and also powers the portable ultrasound device. However, the battery life of the portable ultrasound device depends entirely on the trolley, and the battery life is severely limited when the hospital does not have a trolley or when there is an emergency call.

[0006] 3. Provide a portable battery pack for the portable ultrasound device. After connecting the portable ultrasound device to the portable battery pack, the portable battery pack powers the portable ultrasound device (it cannot charge while powered). However, the power adapter used to charge the portable ultrasound device is selected based on its maximum power consumption. The charging adapter for the portable battery pack is the same as the charging adapter for the portable ultrasound device, and the portable battery pack uses slow charging by default. If the portable ultrasound device requires a longer battery life, the portable battery pack needs a larger capacity, a longer charging time, and slower charging speed. Utility Model Content

[0007] This invention addresses the aforementioned problems. Embodiments of this invention provide a trolley, a mobile battery pack, an ultrasonic power supply system, and an ultrasonic imaging system. Using this solution, the trolley can simultaneously power both the portable ultrasonic device and the mobile battery pack, and the mobile battery pack supports switching between fast and slow charging based on the load information of the portable ultrasonic device. This helps to solve the drawbacks of slow charging of mobile battery packs and the inability of the trolley to be used remotely in related technologies.

[0008] According to one aspect of this utility model, a trolley is provided, comprising a mains power supply module, a first interface, a second interface, a third interface, a portable ultrasound device detection module, and a first control module; the second interface is used to connect to a fourth interface of the portable ultrasound device, and the third interface is used to connect to a fifth interface of a mobile battery pack, the mobile battery pack being used to power the portable ultrasound device; the input end of the mains power supply module is connected to the first interface, and the output end is connected to the second and third interfaces respectively, for receiving mains power via the first interface, performing AC-DC conversion on the received mains power, and powering the portable ultrasound device via the second interface and the mobile battery pack via the third interface; the portable ultrasound device detection module is connected to the second interface and is used to detect the load information of the portable ultrasound device; the first control module is connected to the portable ultrasound device detection module and the third interface respectively, for receiving the load information sent by the portable ultrasound device detection module, generating a charging control signal based on the load information, and sending the charging control signal to the mobile battery pack via the third interface, wherein the mobile battery pack performs fast charging or slow charging based on the charging control signal when charging using the output power of the trolley.

[0009] For example, the portable ultrasound device detection module includes a portable ultrasound device presence detection circuit; the first end of the portable ultrasound device presence detection circuit is connected to a second interface, and the second end is connected to a first control module, for detecting the presence information of the portable ultrasound device, and the load information includes the presence information; the first control module is specifically used to generate a fast charging signal when the presence information indicates that the portable ultrasound device is not in place, and send the fast charging signal to the mobile battery pack via a third interface, wherein the charging control signal includes the fast charging signal, and the mobile battery pack performs fast charging based on the fast charging signal.

[0010] For example, the first control module is further configured to generate a slow charging signal when the presence information indicates that the portable ultrasound device is in place, and send the slow charging signal to the mobile battery pack via the third interface, wherein the charging control signal also includes the slow charging signal, and the mobile battery pack performs slow charging based on the slow charging signal.

[0011] For example, the portable ultrasound device detection module includes a portable ultrasound device current detection circuit; the first end of the portable ultrasound device current detection circuit is connected to a second interface, and the second end is connected to a first control module, for detecting the load current of the portable ultrasound device, the load information including the load current; the first control module is specifically used to generate a fast charging signal when the load current is less than a preset current, and send the fast charging signal to the mobile battery pack via a third interface, and generate a slow charging signal when the load current is greater than or equal to the preset current, and send the slow charging signal to the mobile battery pack via the third interface, wherein the charging control signal includes a fast charging signal and a slow charging signal, and the mobile battery pack performs fast charging based on the fast charging signal and slow charging based on the slow charging signal.

[0012] For example, the trolley also includes a first portable ultrasound device power supply module. The output end of the mains power supply module is connected to the second interface and the third interface at the first node, respectively. The input end of the first portable ultrasound device power supply module is connected to the first node, and the output end is connected to the second interface. It is used to convert the output power at the first node into a first preset amount of output power, and to provide the first preset amount of output power to the portable ultrasound device through the second interface.

[0013] For example, the trolley also includes a first charging management module, a first battery pack, and a first diode; the input terminal of the first charging management module is connected to the output terminal of the mains power supply module, and the output terminal is connected to the input terminal of the first battery pack, for charging the first battery pack using the output power of the mains power supply module; the output terminal of the first battery pack is connected to the anode of the first diode, and the cathode of the first diode is connected to the first node, wherein the output voltage of the first battery pack is higher than the forward voltage of the first diode, and when the mains power supply module is connected to mains power, the output voltage of the mains power supply module is higher than the output voltage of the first battery pack.

[0014] For example, the mobile battery pack includes a second charging management module, a second battery pack, and a second diode; the input terminal of the second charging management module is connected to a fifth interface, and the output terminal is connected to the input terminal of the second battery pack, for charging the second battery pack using the output power obtained from the trolley via the fifth interface; the anode of the second diode is connected to the output terminal of the second battery pack, and the cathode of the second diode is connected to the fifth interface, wherein the output voltage of the second battery pack is higher than the forward voltage of the second diode, and when the mains power supply module is connected to mains power, the output voltage of the mains power supply module is higher than the output voltage of the second battery pack.

[0015] For example, the trolley also includes a first step-down module, the output end of the mains power supply module is connected to the second interface and the third interface at the first node respectively; the input end of the first step-down module is connected to the first node, and the output end is connected to the first control module, for stepping down the output power at the first node to obtain a second preset amount of output power, and providing the second preset amount of output power to the first control module.

[0016] According to another aspect of this utility model, a mobile battery pack is also provided for connection to the aforementioned trolley for charging via the trolley and for powering a portable ultrasound device. The mobile battery pack includes a fifth interface, a second control module, a second charging management module, a second battery pack, a second portable ultrasound device power supply module, and a sixth interface. The fifth interface is used to connect to the third interface of the trolley, and the sixth interface is used to connect to the seventh interface of the portable ultrasound device. The second control module is connected to the control terminals of the fifth interface and the second charging management module, respectively, for receiving charging control signals sent by the trolley from the fifth interface, generating corresponding charging command signals based on the charging control signals, and... The charging command signal is sent to the second charging management module; the input end of the second charging management module is connected to the fifth interface, and the output end is connected to the input end of the second battery pack. It is used to obtain output power from the trolley through the fifth interface, use the output power of the trolley to charge the second battery pack, and perform fast charging or slow charging based on the charging control signal during charging; the input end of the second portable ultrasound device power supply module is connected to the output end of the second battery pack, and the output end is connected to the sixth interface. It is used to convert the output power at the output end of the second battery pack into a third preset amount of output power, and provide the third preset amount of output power to the portable ultrasound device through the sixth interface.

[0017] For example, the mobile battery pack also includes a second diode; the anode of the second diode is connected to the output terminal of the second battery pack, and the cathode is connected at the second node to the fifth interface and the input terminal of the second portable ultrasonic device power supply module, respectively. The output voltage of the second battery pack is higher than the forward voltage of the second diode, and when the mains power supply module is connected to mains power, the output voltage transmitted by the mains power supply module through the third interface is higher than the output voltage of the second battery pack.

[0018] For example, the mobile battery pack also includes a second step-down module, the input terminal of the second portable ultrasound device power supply module is connected to the output terminal of the second battery pack at the second node; the input terminal of the second step-down module is connected to the second node, and the output terminal is connected to the second control module, for stepping down the output power at the second node to obtain a fourth preset amount of output power, and providing the fourth preset amount of output power to the second control module.

[0019] For example, the mobile battery pack also includes an eighth interface; the eighth interface is used to connect to a power adapter for AC-DC conversion of AC mains power; the input of the second charging management module is also connected to the eighth interface for obtaining output power from the power adapter via the eighth interface and charging the second battery pack using the output power of the power adapter.

[0020] For example, the power adapter is a power adapter for connecting to the ninth interface of the portable ultrasound device to power the portable ultrasound device.

[0021] According to another aspect of the present invention, an ultrasonic power supply system is also provided, including the aforementioned trolley and the aforementioned mobile battery pack.

[0022] According to another aspect of the present invention, an ultrasonic imaging system is also provided, including the aforementioned ultrasonic power supply system and portable ultrasonic device.

[0023] Using the above technical solution, the trolley can simultaneously power both the portable ultrasound device and the mobile battery pack, and can switch between fast charging and slow charging of the mobile battery pack based on the load information of the portable ultrasound device. In scenarios where a trolley is available, it can power both the portable ultrasound device and / or the mobile battery pack, supporting fast charging of the mobile battery pack. In scenarios where a trolley is unavailable, the already charged mobile battery pack can power the portable ultrasound device. This helps to address the drawback of slow charging of mobile battery packs in related technologies, and also optimizes the limitation of the trolley being unable to be used outdoors.

[0024] The above description is merely an overview of the technical solution of this utility model. In order to better understand the technical means of this utility model and to implement it in accordance with the contents of the specification, and to make the above and other objects, features and advantages of this utility model more obvious and understandable, specific embodiments of this utility model are given below. Attached Figure Description

[0025] The above and other objects, features, and advantages of this utility model will become more apparent from the more detailed description of the embodiments thereof in conjunction with the accompanying drawings. The drawings are provided to further illustrate the embodiments of this utility model and form part of the specification. They are used together with the embodiments of this utility model to explain the utility model and do not constitute a limitation thereof. In the drawings, the same reference numerals generally represent the same components or steps.

[0026] Figure 1 A schematic block diagram of a trolley and related portable ultrasound device and mobile battery pack according to an embodiment of the present invention is shown.

[0027] Figure 2 A schematic block diagram of a trolley and related portable ultrasonic device and mobile battery pack according to another embodiment of the present invention is shown.

[0028] Figure 3 A schematic block diagram of a mobile battery pack and related portable ultrasound device and trolley according to an embodiment of the present invention is shown. Detailed Implementation

[0029] To make the objectives, technical solutions, and advantages of this utility model more apparent, exemplary embodiments according to this utility model will be described in detail below with reference to the accompanying drawings. Obviously, the described embodiments are merely some embodiments of this utility model, and not all embodiments of this utility model. It should be understood that this utility model is not limited to the exemplary embodiments described herein. Based on the embodiments of this utility model described herein, all other embodiments obtained by those skilled in the art without inventive effort should fall within the protection scope of this utility model.

[0030] To at least partially solve the above-mentioned technical problems, embodiments of this utility model provide a trolley, a mobile battery pack, an ultrasonic power supply system, and an ultrasonic imaging system. The trolley can simultaneously power both the portable ultrasonic device and the mobile battery pack, and supports the mobile battery pack switching between fast charging and slow charging based on the load information of the portable ultrasonic device. The portable ultrasonic device described herein can be any existing or future portable small ultrasonic device, including but not limited to laptop-type ultrasonic devices. The portable ultrasonic device can perform ultrasonic detection on any target object. Exemplarily, the portable ultrasonic device may include an ultrasonic probe, a main unit, a display, input / output interfaces, etc. The main unit may include a central processing unit (CPU), memory, storage, power management system, etc. The main unit can acquire ultrasonic echo signals from the ultrasonic probe and use the ultrasonic echo signals to perform ultrasonic imaging to obtain an ultrasonic image of the target object. The display is used to display the ultrasonic image and other relevant information. Portable ultrasound devices are typically equipped with multiple input / output interfaces, such as Universal Serial Bus (USB) interfaces, High Definition Multimedia Interface (HDMI) interfaces, Local Area Network Interface (LAN) interfaces, and Wi-Fi interfaces, for connecting external devices, transmitting data, and supporting remote communication. Those skilled in the art will understand the working principles and structure of portable ultrasound devices, which will not be elaborated upon herein. The mobile battery pack described herein can be any battery pack capable of storing power and providing power to the portable ultrasound device when connected. The power described herein refers to electrical energy, and the output power can have corresponding output power, output voltage, and output current. It is understood that the mobile battery pack can include a battery pack for storing power, and the battery pack can include one or more batteries. It should be noted that the term "connection" in this document refers to an electrical connection, which can be a direct connection or an indirect connection via an intermediate medium (such as a circuit, chip, electronic component, etc.).

[0031] For ease of description and understanding, the following will be combined with Figure 1-3The present invention will now be described. It should be noted that... Figure 1-3 In the diagram, dashed lines represent signal lines, and solid lines represent power lines. Signal lines are primarily used to transmit signals or information, while power lines are primarily used to transmit electricity. Figure 1 A schematic block diagram of a trolley 200 and a related portable ultrasound device 100 and mobile battery pack 300 according to an embodiment of the present invention is shown. The mobile battery pack 300 powers the portable ultrasound device 100, and the trolley 100 powers both the portable ultrasound device 100 and the mobile battery pack 300. Figure 1 As shown, the trolley 200 includes a mains power supply module 210, a portable ultrasonic device detection module 220, and a first control module 230. In addition, the trolley 200 also includes three electrical interfaces: a first interface K1, a second interface K2, and a third interface K3.

[0032] The first interface K1 is a mains power input interface for connecting to mains power. The first interface K1 can be implemented using any existing or future mains power input interface, including but not limited to IEC 60320 series connectors. The second interface K2 is used to connect to the fourth interface K4 of the portable ultrasound device 100, and the third interface K3 is used to connect to the fifth interface K5 of the mobile battery pack 300. The fourth interface K4 is the interface of the portable ultrasound device 100 for connecting to the trolley 200 to receive power transmitted from the trolley 200. The power received by the portable ultrasound device 100 can be used to charge its built-in battery pack and / or to provide the necessary power for the operation of the various components in the portable ultrasound device 100. Exemplarily, the portable ultrasound device 100 may also include a seventh interface for connecting to the mobile battery pack 300 and / or a ninth interface for connecting to a power adapter. Any two of the fourth interface K4, the seventh interface, and the ninth interface can be the same interface or different interfaces. Preferably, the fourth interface K4, the seventh interface, and the ninth interface are all the same interface. This allows the portable ultrasound device 100 to connect to different types of external power supplies through the same interface, significantly reducing hardware costs. For example, each of the fourth interface K4, the seventh interface, and the ninth interface can be implemented using any existing or future charging interface, including but not limited to a USB Type-C interface, a DC socket (Direct Current Jack) interface, MagSafe, or a similar magnetic interface. Correspondingly, the second interface K2 is a mating interface with the fourth interface K4, and it can also be implemented using a USB Type-C interface, a DC socket (Direct Current Jack) interface, MagSafe, or a similar magnetic interface. The second interface K2 can be implemented using a structure identical or similar to the output interface of the portable ultrasound device 100's power adapter. The third interface K3 and the fifth interface K5 are mating interfaces. In addition to transmitting power, the third interface K3 and the fifth interface K5 can also communicate, i.e., transmit charging control signals. For example, the third interface K3 and the fifth interface K5 can be implemented using a USB Type-C interface, a MagSafe interface, etc. The third interface K3 and the fifth interface K5 can also be implemented using the same or similar structures as the second interface K2 and the fourth interface K4, respectively. For example, the third interface K3 and the fifth interface K5 can be interfaces with mutually matching mechanical locking mechanisms, such as snap-fits, threads, etc., so that the connection between the third interface K3 and the fifth interface K5 can also serve to physically fix the mobile battery pack 300.

[0033] like Figure 1As shown, the input terminal of the AC power supply module 210 is connected to the first interface K1, and the output terminals are connected to the second interface K2 and the third interface K3 respectively. It is used to connect to AC power via the first interface K1, convert the connected AC power to DC power, and power the portable ultrasound device 100 via the second interface K2 and the mobile battery pack 300 via the third interface K3. The AC power supply module 210 can convert high-power AC power to DC power and output high-power DC power to power the portable ultrasound device 100 and the mobile battery pack 300. The output power (which can be called the first output power) provided by the AC power supply module 210 of the trolley 200 to the portable ultrasound device 100 and the mobile battery pack 200 is much greater than the output power (which can be called the second output power) provided by the power adapter of the portable ultrasound device 100 to the portable ultrasound device 100 and the mobile battery pack 200. For example, the first output power can be two, three, or even four times the second output power. This enables the trolley 200 to support fast charging of the mobile battery pack 300. For example, the AC power supply module 210 may include a power module for converting AC power to DC power and an electromagnetic compatibility (EMC) module.

[0034] The portable ultrasound device detection module 220 is connected to the second interface K2 and is used to detect the load information of the portable ultrasound device 100. The load information can be used to indicate the current load size corresponding to the portable ultrasound device 100 as a load of the trolley 200. For example, the load information may include the presence information of the portable ultrasound device 100 and / or the load current. The presence information indicates whether the portable ultrasound device 100 is in place, that is, whether the portable ultrasound device 100 is connected to the trolley 200. The load current is the output current provided by the trolley 200 to the portable ultrasound device 100, that is, the output current obtained by the portable ultrasound device 100 from the trolley 200.

[0035] The first control module 230 is connected to the portable ultrasound device detection module 220 and the third interface K3 respectively. It is used to receive the load information sent by the portable ultrasound device detection module 220, generate a charging control signal based on the load information, and send the charging control signal to the mobile battery pack 300 through the third interface K3. The mobile battery pack 300 performs fast charging or slow charging based on the charging control signal when it is charging using the output power of the trolley 200.

[0036] The charging power of the mobile battery pack 300 can be divided into two groups. One group is slow charging, where the power is equal to or approximately equal to the power consumption of the portable ultrasound device. The other group is fast charging, where the power is equal to or approximately equal to a preset multiple of the power consumption of the portable ultrasound device. This preset multiple can be set by comprehensively considering the maximum output power of the trolley 200 and the weight of the mobile battery pack 300. The higher the energy storage capacity of the mobile battery pack 300, the more batteries it contains, resulting in a heavier mobile battery pack 300, which affects its portability. Therefore, the energy storage capacity of the mobile battery pack 300 can be set to an appropriate size as needed, and the fast charging power can be set accordingly. In one embodiment, the preset multiple can be between 2 and 3 times, for example, 2 times, 2.5 times, 3 times, etc. The mobile battery pack 300 has a control module (referred to herein as the second control module) and a charging management module (referred to herein as the second charging management module), the charging management module having battery charging and discharging management functions. The control module built into the mobile battery pack 300 can control the charging management module to manage the charging of the battery pack (referred to as the second battery pack in this article) of the mobile battery pack 300, and realize the switching between fast charging and slow charging.

[0037] The first control module can be implemented using any processing unit with data processing and / or instruction execution capabilities and its peripheral circuits. For example, the first control module can be one or more of the following processing units, including but not limited to a microcontroller unit (MCU), a digital signal processor (DSP), a field-programmable gate array (FPGA), and an application-specific integrated circuit (ASIC). When the mains power supply module 210 is connected to mains power, and when the mobile battery pack 300 and the trolley 200 are connected together via the third interface K3 and the fifth interface K5, the first control module 230 can generate a corresponding charging control signal based on the load information of the portable ultrasound device 100, and send the charging control signal to the mobile battery pack 300 via the third interface K3 and the fifth interface K5 to cause the mobile battery pack 300 to enter fast charging or slow charging. For example, if the portable ultrasound device 100 is not connected to the trolley 200, the first control module 230 can send a fast charging signal to the mobile battery pack 300 to cause the mobile battery pack 300 to enter fast charging. If the portable ultrasound device 100 is connected to the trolley 200 via the fourth interface K4 and the second interface K2, the first control module 230 can send a slow charging signal to the mobile battery pack 300 to initiate slow charging. Furthermore, if the connection between the trolley 200 and the mobile battery pack 300 is abnormal and communication is impossible, or if the trolley 200 does not send any signal, the mobile battery pack 300 can automatically maintain slow charging. Through this scheme, the mobile battery pack 300 can switch between fast charging and slow charging when used in conjunction with the trolley 200 and the portable ultrasound device 100. The trolley 200, the mobile battery pack 300, and the portable ultrasound device 100 can be used in various ways, providing users with more convenient application scenarios.

[0038] The trolley according to this embodiment of the invention can simultaneously power a portable ultrasound device and a mobile battery pack, and can switch between fast charging and slow charging of the mobile battery pack according to the load information of the portable ultrasound device. Thus, in scenarios where a trolley is available, the trolley can be used to power the portable ultrasound device and / or the mobile battery pack, and the mobile battery pack can be charged via fast charging. In scenarios where a trolley is unavailable, the already charged mobile battery pack can power the portable ultrasound device. This helps to solve the drawback of slow charging of mobile battery packs in related technologies, and also optimizes the disadvantage of the trolley's inability to be used outdoors.

[0039] For example, the portable ultrasound device detection module includes a portable ultrasound device presence detection circuit; the first end of the portable ultrasound device presence detection circuit is connected to a second interface, and the second end is connected to a first control module, for detecting the presence information of the portable ultrasound device, and the load information includes the presence information; the first control module is specifically used to generate a fast charging signal when the presence information indicates that the portable ultrasound device is not in place, and send the fast charging signal to the mobile battery pack via a third interface, wherein the charging control signal includes the fast charging signal, and the mobile battery pack performs fast charging based on the fast charging signal.

[0040] Figure 2 A schematic block diagram of a trolley 200 and a related portable ultrasound device 100 and a mobile battery pack 300 according to another embodiment of the present invention is shown. Figure 2 The portable ultrasound device detection module 220 includes a portable ultrasound device in-situ detection circuit 222 and a portable ultrasound device current detection circuit 224. Note that... Figure 2 The structures of the trolley 200 and the mobile battery pack 300 shown are for illustrative purposes only and are not intended to limit the scope of this invention. Other implementations of the trolley 200 and the mobile battery pack 300 are possible. For example, the portable ultrasound device detection module 220 may include only one of the portable ultrasound device presence detection circuit 222 and the portable ultrasound device current detection circuit 224, or it may include both. The portable ultrasound device presence detection circuit 222 is a circuit capable of detecting whether the second interface K2 is connected to the portable ultrasound device 100. The portable ultrasound device presence detection circuit 222 can be implemented using any circuit capable of presence detection, including but not limited to presence detection circuits that determine the presence or absence of a specific component (portable ultrasound device 100 in this invention) by changes in electrical characteristics (such as resistance, capacitance, inductance, etc.) or physical characteristics (such as magnetic field, optical path, etc.).

[0041] The portable ultrasound device presence detection circuit 222 can be connected to the first control module 230. The portable ultrasound device presence detection circuit 222 can send the detected presence information to the first control module 230. When the first control module 230 identifies that the portable ultrasound device 100 is not in place based on the presence information, it can send a fast charging signal to the mobile battery pack 300 through the third interface K3 and the fifth interface K5 to notify the mobile battery pack 300 to enter fast charging. For example, the first control module 230 can send the fast charging signal to the control module of the battery pack 300 (referred to herein as the second control module). The second control module of the mobile battery pack 300 can control the second charging management module to complete the conversion of the battery pack from slow charging to fast charging, so that the mobile battery pack 300 enters fast charging.

[0042] For example, the presence information may include a presence signal and a non-presence signal, which are different electrical signals. The presence signal indicates that the portable ultrasound device 100 is in place, and the non-presence signal indicates that the portable ultrasound device 100 is not in place. Any two different electrical signals can be used as the presence signal and the non-presence signal, as long as they can be distinguished and recognized by the first control module 320. For example, the presence signal and the non-presence signal can be two sine or cosine signals with different amplitudes and / or frequencies, or they can be two square wave signals with different amplitudes and / or duty cycles, or they can be a high-level signal and a low-level signal, etc. When the first control module 230 receives the non-presence signal, it can generate a corresponding fast-charging signal. The first control module 230 may include any signal generation circuit capable of generating a fast-charging signal based on the non-presence signal. The "fast-charging signal" and "slow-charging signal" described herein are two different electrical signals. Similar to in-situ and out-of-situ signals, any two different electrical signals can be used as fast charging and slow charging signals, as long as they can be distinguished and recognized by the mobile battery pack 300. For example, the fast charging and slow charging signals can be two sine or cosine signals with different amplitudes and / or frequencies, or they can be two square wave signals with different amplitudes and / or duty cycles, or they can be a high-level signal and a low-level signal, etc.

[0043] By detecting when the portable ultrasound device is in place, it can be determined whether the device is present. When the device is not in place, the trolley can send a fast-charging signal to the mobile battery pack to initiate fast charging. This helps avoid increasing the output power of the trolley's AC power module, thus preventing an increase in the trolley's cost and weight.

[0044] For example, the first control module is further configured to generate a slow charging signal when the presence information indicates that the portable ultrasound device is in place, and send the slow charging signal to the mobile battery pack via the third interface, wherein the charging control signal also includes the slow charging signal, and the mobile battery pack performs slow charging based on the slow charging signal.

[0045] In one embodiment, the portable ultrasound device detection module 220 may only include a portable ultrasound device presence detection circuit 222. In this case, the first control module 210 can directly generate a corresponding fast charging signal or slow charging signal based on whether the portable ultrasound device 100 is present or not. For example, when the first control module 230 identifies that the portable ultrasound device 100 is present based on the presence information, it can send a slow charging signal to the mobile battery pack 300 through the third interface K3 and the fifth interface K5 to notify the mobile battery pack 300 to enter slow charging; when the first control module 230 identifies that the portable ultrasound device 100 is not present based on the presence information, it can send a fast charging signal to the mobile battery pack 300 through the third interface K3 and the fifth interface K5 to notify the mobile battery pack 300 to enter fast charging. As described above, the presence information may include a presence signal and a non-present signal. The presence signal indicates that the portable ultrasound device 100 is present, and the non-present signal indicates that the portable ultrasound device 100 is not present. When the first control module 230 receives the presence signal, it can generate a corresponding slow charging signal. The first control module 230 may include any signal generation circuit capable of generating a slow charging signal based on an in-situ signal. The signal generation circuit generating the slow charging signal based on the in-situ signal and the signal generation circuit generating the fast charging signal based on a non-in-situ signal described above may be the same signal generation circuit or different signal generation circuits. Using this approach, the mobile battery pack 300 can be directly controlled to enter slow charging mode when the portable ultrasonic device 100 is in place. This approach requires less detection hardware and has a lower cost.

[0046] In another embodiment, the portable ultrasound device detection module 220 may include a portable ultrasound device presence detection circuit 222 and a portable ultrasound device current detection circuit 224. In this case, the first control module 210 may generate a fast charging signal when the portable ultrasound device 100 is not in place, or when the portable ultrasound device 100 is in place and its load current is less than a preset current, and generate a slow charging signal when the portable ultrasound device is in place and its load current is greater than or equal to the preset current. When the portable ultrasound device detection module 220 includes the portable ultrasound device current detection circuit 224, the first control module 210 may include a current comparison circuit. The current comparison circuit can be implemented using any existing or future comparator circuit capable of current comparison. Through the current comparison circuit, the load current can be compared with a preset current. When the load current is less than the preset current, the current comparison circuit can output a corresponding first comparison result; when the load current is greater than or equal to the preset current, the current comparison circuit can output a corresponding second comparison result. The first comparison result can be the fast charging signal itself, or it can be an electrical signal different from the fast charging signal (e.g., the fast charging signal is a sinusoidal signal with a first frequency, and the first comparison result is a high-level signal). When the first comparison result is an electrical signal different from the fast charging signal, the first control module may further include a signal generation circuit for generating the fast charging signal based on the first comparison result. Similarly, the second comparison result can be the slow charging signal itself, or it can be an electrical signal different from the slow charging signal (e.g., the slow charging signal is a sinusoidal signal with a second frequency, and the second comparison result is a low-level signal). When the second comparison result is an electrical signal different from the slow charging signal, the first control module may further include a signal generation circuit for generating the slow charging signal based on the second comparison result. The signal generation circuit for generating the fast charging signal based on the first comparison result and the signal generation circuit for generating the slow charging signal based on the second comparison result can be the same signal generation circuit or different signal generation circuits. For example, when the portable ultrasound device detection module 220 includes both a portable ultrasound device presence detection circuit 222 and a portable ultrasound device current detection circuit 224, a fast charging signal or a slow charging signal can be generated by combining the presence information detected by the portable ultrasound device presence detection circuit 222 and the load current detected by the portable ultrasound device current detection circuit 224. For example, the presence signal and the absence signal can be high-level signals and low-level signals, respectively. The presence signal and the absence signal can be input to the enable terminal of the current comparison circuit. When the enable terminal of the current comparison circuit receives the presence signal (i.e., a high-level signal), it can be enabled, that is, current comparison can be performed. When it receives the absence signal (i.e., a low-level signal), it can be disabled, that is, current comparison can not be performed.

[0047] For example, the portable ultrasound device detection module includes a portable ultrasound device current detection circuit; the first end of the portable ultrasound device current detection circuit is connected to a second interface, and the second end is connected to a first control module, for detecting the load current of the portable ultrasound device, the load information including the load current; the first control module is specifically used to generate a fast charging signal when the load current is less than a preset current, and send the fast charging signal to the mobile battery pack via a third interface, and generate a slow charging signal when the load current is greater than or equal to the preset current, and send the slow charging signal to the mobile battery pack via the third interface, wherein the charging control signal includes a fast charging signal and a slow charging signal, and the mobile battery pack performs fast charging based on the fast charging signal and slow charging based on the slow charging signal.

[0048] The magnitude of the load current is related to the power-on / off state and operating mode of the portable ultrasound device 100. When the portable ultrasound device 100 is powered off, the corresponding load current is minimal, possibly zero or slightly greater than zero, because some standby circuits sometimes need to operate even when powered off. When the portable ultrasound device 100 is powered on and uses different operating modes, the magnitude of the load current can vary depending on the operating mode.

[0049] like Figure 2 As shown, the portable ultrasound device detection module 220 may include a portable ultrasound device current detection circuit 224. The portable ultrasound device current detection circuit 224 can be implemented using any existing or future current detection circuit (or current sampling circuit) capable of current detection. The ultrasound device current detection circuit 224 can be connected in series between the output terminal of the mains power supply module 210 and the second interface K2 to detect the output current, i.e., the load current, provided by the carriage 200 to the portable ultrasound device 100. Figure 2 The node where the output of the mains power supply module 210 is located is shown, namely the first node A. Therefore, the ultrasonic device current detection circuit 224 can be specifically connected in series between the first node A and the second interface K2. Exemplarily, the trolley 200 may also include a first battery pack 260, which can also be connected to the first node A. When mains power is not connected, the trolley 200 can use the first battery pack 260 to power the portable ultrasonic device 100. This scheme will be specifically described in the following embodiments. Furthermore, exemplarily, Figure 2The diagram also shows a first portable ultrasound device power supply module 240. When this module is present, the ultrasound device current detection circuit 224 can be specifically connected in series between the second interface K2 and the first portable ultrasound device power supply module 240, which is then connected to the first node A. The first portable ultrasound device power supply module 240 is used to convert the output power at the first node A into a power output adapted to the portable ultrasound device 100 before outputting it to the portable ultrasound device 100. Of course, when the first battery pack 260 is not present, the first node A is only connected to the output terminal of the mains power supply module 210, and the portable ultrasound device 100 can be powered solely by the mains power supply module 210. In this case, the first portable ultrasound device power supply module 240 is also optional; it may or may not be present. For example, the first portable ultrasound device power supply module 240 can be integrated with the mains power supply module 210, allowing the mains power supply module 210 itself to output power adapted to the portable ultrasound device 100.

[0050] In one embodiment, the portable ultrasound device detection module 220 may only include the portable ultrasound device current detection circuit 224. In this case, only the load current of the portable ultrasound device 100 can be detected, and a corresponding fast charging signal or slow charging signal can be generated based on the magnitude of the load current. It can be understood that if the portable ultrasound device 100 is not in place, the power supplied to the portable ultrasound device 100 by the carriage 200 is 0, and the corresponding load current is also equal to 0. When the portable ultrasound device 100 is in place, as described above, the power supplied to the portable ultrasound device 100 by the carriage 200 changes with the power-on / off state and operating mode. Therefore, the first control module can directly generate a corresponding fast charging signal or slow charging signal based on the magnitude of the load current. For example, a fast charging signal is generated when the load current is less than a preset current, and a slow charging signal is generated when the load current is greater than or equal to the preset current. For example, a current comparison circuit can be used to compare the load current and the preset current to generate a corresponding signal. The structure and working principle of the current comparison circuit have been described above and will not be repeated here. Furthermore, as described above, the portable ultrasound device detection module 220 can also include both a portable ultrasound device presence detection circuit 222 and a portable ultrasound device current detection circuit 224. In this case, a fast charging signal or a slow charging signal can be generated by combining the presence information detected by the portable ultrasound device presence detection circuit 222 and the load current detected by the portable ultrasound device current detection circuit 224. The implementation of the combined embodiment has been described above and will not be repeated here.

[0051] Using the above scheme, when the load current of the portable ultrasound device is small, the trolley can send a fast charging signal to the mobile battery pack to enable fast charging. When the load current is large, the trolley can send a slow charging signal to enable slow charging. This can prevent the total charging power of the mobile battery pack and the portable ultrasound device from being too large, which would cause the trolley to overload and improve safety.

[0052] For example, the trolley also includes a first portable ultrasound device power supply module. The output end of the mains power supply module is connected to the second interface and the third interface at the first node, respectively. The input end of the first portable ultrasound device power supply module is connected to the first node, and the output end is connected to the second interface. It is used to convert the output power at the first node into a first preset amount of output power, and to provide the first preset amount of output power to the portable ultrasound device through the second interface.

[0053] like Figure 2 As shown, a first portable ultrasound device power supply module 240 is illustrated. The input terminal of the first portable ultrasound device power supply module 240 is connected to the first node A, and the output terminal is connected to the second interface K2. The first portable ultrasound device power supply module 240 can convert the output power at the first node A into a first preset value of output power to supply the portable ultrasound device 100. It can be understood that the first preset value can be determined according to the needs of the portable ultrasound device 100. As described above, when the first battery pack 260 is present and connected to the first node A, the current output power at the first node A can be either the output power of the mains power supply module 210 or the output power of the first battery pack 260. The first portable ultrasound device power supply module 240 can also convert and adjust the output power of either one to a suitable value to supply the portable ultrasound device 100.

[0054] By adopting the above solution, a suitable amount of output power is provided to the portable ultrasound device by adding a separate first portable ultrasound device power supply module, which can improve the stability of the power supply to the portable ultrasound device.

[0055] For example, the trolley also includes a first charging management module, a first battery pack, and a first diode; the input terminal of the first charging management module is connected to the output terminal of the mains power supply module, and the output terminal is connected to the input terminal of the first battery pack, for charging the first battery pack using the output power of the mains power supply module; the output terminal of the first battery pack is connected to the anode of the first diode, and the cathode of the first diode is connected to the first node, wherein the output voltage of the first battery pack is higher than the forward voltage of the first diode, and when the mains power supply module is connected to mains power, the output voltage of the mains power supply module is higher than the output voltage of the first battery pack.

[0056] like Figure 2As shown, the trolley 200 may also include a first charging management module 250, a first battery pack 260, and a first diode D1. The first battery pack 260 may include one or more batteries. The first charging management module 250 can manage the charging and discharging of the first battery pack 260. The first charging management module 250 can be implemented using any existing or future module capable of managing the charging and discharging of the battery pack. For example, the first charging management module 250 may include a charging management chip and peripheral circuitry that works in conjunction with the charging management chip. Through the first charging and discharging management module 250, the first battery pack 260 can be charged using the output power of the mains power supply module 210. When mains power is available, the first battery pack 260 can be charged at a fixed rate, without distinguishing between fast and slow charging. Furthermore, as... Figure 2 As shown, a first diode D1 is connected in series between the output terminal of the first battery pack 260 and the first node A. The output voltage of the first battery pack 260 is higher than the forward voltage of the first diode D1. Furthermore, when the mains power supply module 210 is connected to mains power, its output voltage is higher than that of the first battery pack 260. That is, when the mains power supply module 210 is connected to mains power, the first diode D1 is off, and the output power of the mains power supply module 210 is transmitted to the first node A and then supplied to the portable ultrasound device 100 via the first portable ultrasound power supply module 240 and the second interface K2. When the mains power supply module 250 is not connected to mains power, the first diode D1 is on, allowing the first battery pack 260 to transmit its output power to the first node A via the first diode D1 and then supplied to the portable ultrasound device 100 via the first portable ultrasound power supply module 240 and the second interface K2. Therefore, by switching the first diode D1 on and off, the trolley 200 can supply power to the portable ultrasound device 100 from different sources. It should be noted that when the AC power supply module 210 is connected to AC power, the voltage difference between the output voltage of the AC power supply module 210 and the output voltage of the first battery pack 260 shall not exceed the reverse breakdown voltage of the first diode D1.

[0057] By adopting the above solution and adding a first charging management module, a first battery pack, and a corresponding first diode, the portable ultrasound equipment can be powered by the first battery pack when the trolley is without mains power. This way, if the hospital experiences a power outage, the battery pack built into the trolley can continue to power the portable ultrasound equipment.

[0058] For example, the mobile battery pack includes a second charging management module, a second battery pack, and a second diode; the input terminal of the second charging management module is connected to a fifth interface, and the output terminal is connected to the input terminal of the second battery pack, for charging the second battery pack using the output power obtained from the trolley via the fifth interface; the anode of the second diode is connected to the output terminal of the second battery pack, and the cathode of the second diode is connected to the fifth interface, wherein the output voltage of the second battery pack is higher than the forward voltage of the second diode, and when the mains power supply module is connected to mains power, the output voltage of the mains power supply module is higher than the output voltage of the second battery pack.

[0059] Figure 2 A schematic block diagram of the mobile battery pack 300 is also shown. Figure 2 The components in the mobile battery pack 300 shown are merely examples and not limitations of the present invention. For example, Figure 2 The second step-down module 350, the eighth interface K7, and the second diode D2 shown are all optional. The connection between the fifth interface K5 and the second portable ultrasound device power supply module 340 is also optional, and so on. Figure 2 As shown, the mobile battery pack 300 may include a second charging management module 320, a second battery group 330, and a second diode D2. The second battery group 330 may include one or more batteries. The second charging management module 320 can manage the charging and discharging of the second battery group 330. The second charging management module 320 can be implemented using any existing or future module capable of managing the charging and discharging of the battery group. For example, the second charging management module 320 may include a charging management chip and peripheral circuitry that works in conjunction with the charging management chip. The second charging management module 320 can charge the second battery group 330 using the power transmitted from the trolley 200 to the mobile battery pack 300 via the third interface K3 and the fourth interface K4. The structure of the second charging management module 320 may be the same as or different from that of the first charging management module 250.

[0060] like Figure 2As shown, a second diode D2 is connected in series between the output terminal of the second battery pack 330 and the fifth interface K5. The output voltage of the second battery pack 330 is higher than the forward voltage of the second diode D2. Furthermore, when the mains power supply module 210 is connected to mains power, its output voltage is higher than that of the second battery pack 330. In other words, when the mains power supply module 210 is connected to mains power, the second diode D2 is off. When the mains power supply module 250 is not connected to mains power, the second diode D2 is on, allowing the second battery pack 330 to transmit its output power via the second diode D2 to the first node A through the fifth interface K5 and the third interface K3. At the first node A, the output power of the second battery pack 260 is combined with the output power of the first portable ultrasonic power supply module 240 and the second interface K2 to supply power to the portable ultrasonic device 100. Therefore, by switching the second diode D2 on and off, the mobile battery pack 300 can charge itself when the trolley 200 has AC power input, and assist the trolley 200 in powering the portable ultrasonic device 100 when there is no AC power input. It should be noted that when AC power is connected to the AC power supply module 210, the voltage difference between the output voltage of the AC power supply module 210 and the output voltage of the second battery pack 330 does not exceed the reverse breakdown voltage of the second diode D2.

[0061] By adopting the above solution, when the trolley has no mains power input, the portable ultrasound device can be powered by a mobile battery pack along with the trolley, which can further improve the battery life of the portable ultrasound device.

[0062] For example, the trolley also includes a first step-down module, the output end of the mains power supply module is connected to the second interface and the third interface at the first node respectively; the input end of the first step-down module is connected to the first node, and the output end is connected to the first control module, for stepping down the output power at the first node to obtain a second preset amount of output power, and providing the second preset amount of output power to the first control module.

[0063] like Figure 2As shown, the trolley 200 may also include a first step-down module 270. One end of the first step-down module 270 can be connected to the first node A, and the other end can be connected to the first control module 230. Through the first step-down module 270, the output voltage at the first node A can be stepped down to a suitable level required by the first control module 230, which can then use this power to operate. It can be understood that if the first node A provides the output power of the mains power supply module 210, the first step-down module 270 can convert this output power; if the first node A provides the output power of the first battery pack 260, the first step-down module 270 can also convert this output power. It can be understood that if the trolley 200 does not include the first battery pack 260 or the first battery pack 260 is not connected to the second node B, the power provided at the second node B will not include the output power of the first battery pack 260. The second preset value can be determined according to the needs of the first control module 230, for example, it can be in the range of 1V to 12V, such as 1.8V, 3.3V, 2.7V, 3.6V, 5.5V, etc. The first step-down module 270 is optional. For example, the first control module 230 can achieve similar operation by integrating a built-in voltage conversion module.

[0064] Using the above scheme, the output power at the first node can be adjusted to a suitable level to support the operation of the components of the first control module via the first step-down module. Using a separate first step-down module effectively ensures the operational stability of the first control module.

[0065] According to another aspect of the present invention, a mobile battery pack is provided. The mobile battery pack is used to connect to the aforementioned trolley 200 for charging via the trolley 200 and for powering the portable ultrasound device 100. Figure 3 A schematic block diagram of a mobile battery pack 300 and associated portable ultrasound device 100 and trolley 200 according to an embodiment of the present invention is shown.

[0066] like Figure 3As shown, the mobile battery pack 300 includes a second control module 310, a second charging management module 320, a second battery pack 330, and a second portable ultrasound device power supply module 340. Furthermore, the mobile battery pack 300 also includes a fifth interface K5 and a sixth interface K6. The fifth interface K5 is used to connect to the third interface K3 of the trolley 200. The structure and working principle of the fifth interface can be understood by referring to the description above, and will not be repeated here. The sixth interface K6 is used to connect to the seventh interface (not shown) of the portable ultrasound device 100. As mentioned above, the seventh interface can be the same interface as the fourth interface K4 of the portable ultrasound device, or it can be a different interface. Preferably, the seventh interface and the fourth interface K4 are implemented using the same interface. As mentioned above, the seventh interface can be implemented using any existing or future charging interface, including but not limited to a USB Type-C interface, a DC socket (Direct Current Jack) interface, MagSafe, or similar magnetic interfaces. Correspondingly, the sixth interface adopts an interface implementation that matches the seventh interface, which may include, but is not limited to, a USB Type-C interface, a DC socket (Direct Current Jack) interface, a MagSafe or similar magnetic interface, etc.

[0067] The second control module 320 is connected to the control terminals of the fifth interface K5 and the second charging management module 320, respectively. It receives charging control signals from the trolley 200 via the fifth interface K5, generates corresponding charging command signals based on the charging control signals, and sends the charging command signals to the second charging management module 320. Similar to the first control module, the second control module can be implemented using any processing unit with data processing and / or instruction execution capabilities and its peripheral circuits. For example, the second control module can be one or more processing units, including but not limited to MCU, DSP, FPGA, and ASIC. As mentioned above, the charging control signals can include fast charging signals and slow charging signals. For example, the charging command signals can include a fast charging command signal corresponding to the fast charging signal and a slow charging command signal corresponding to the slow charging signal. The second control module 310 can notify the second charging management module 320 to enter fast charging mode via the fast charging command signal and to enter slow charging mode via the slow charging command signal. For example, the charging management chip in the second charging management module 320 can have different control pins for selecting fast charging mode or slow charging mode. The second control module 310 can send a fast charging command signal to the control pin corresponding to the fast charging mode in the charging management chip, causing the charging management chip to enter fast charging mode. Slow charging works similarly. As another example, the charging management chip in the second charging management module 320 can have a configuration register. The second control module 310 can write different maximum charging currents into the configuration register using different charging command signals, causing the charging management chip to enter fast charging (higher charging current) mode or slow charging (lower charging current) mode.

[0068] The input terminal of the second charging management module 320 is connected to the fifth interface K5, and the output terminal is connected to the input terminal of the second battery pack 330. It is used to obtain output power from the trolley 200 via the fifth interface K5, and to charge the second battery pack 330 using the output power of the trolley 200. During charging, it performs fast charging or slow charging based on a charging control signal. The structure and working principle of the second charging management module 320 and the second battery pack 330 can be referred to the description above, and will not be repeated here.

[0069] The input terminal of the second portable ultrasound device power supply module 340 is connected to the output terminal of the second battery pack 330, and the output terminal is connected to the sixth interface K6. It is used to convert the output power from the output terminal of the second battery pack 330 into a third preset output power, and then provide this third preset output power to the portable ultrasound device 100 via the sixth interface K6. Similar to the first portable ultrasound device power supply module 240, the second portable ultrasound device power supply module 340 is used to convert the output power from the output terminal of the second battery pack 330 into a power appropriate for the portable ultrasound device 100 before outputting it to the portable ultrasound device 100. It can be understood that the third preset power is determined according to the needs of the portable ultrasound device 100.

[0070] By adopting the above solution, the mobile battery pack can use the output power of the trolley to charge its own built-in second battery pack when connected to the trolley through the fifth interface, and supports fast charging of the mobile battery pack. When the portable ultrasound device is connected to the mobile battery pack through the sixth interface, it can provide power to the portable ultrasound device. This helps to solve the drawback of slow charging of mobile battery packs in related technologies, and can also optimize the drawback of the trolley not being able to go out.

[0071] For example, the mobile battery pack also includes a second diode; the anode of the second diode is connected to the output terminal of the second battery pack, and the cathode is connected at the second node to the fifth interface and the input terminal of the second portable ultrasonic device power supply module, respectively. The output voltage of the second battery pack is higher than the forward voltage of the second diode, and when the mains power supply module is connected to mains power, the output voltage transmitted by the mains power supply module through the third interface is higher than the output voltage of the second battery pack.

[0072] Return to reference Figure 2The second diode D2 is shown, and the second node B is also shown. The above description illustrates an embodiment where the mobile battery pack 300 can charge itself when the trolley 200 has mains power input, and assist the trolley 200 in powering the portable ultrasound device 100 when there is no mains power input; this will not be repeated here. It should be noted that the output of the second battery pack 330 and the second portable ultrasound device power supply module 340 can be connected at the second node B. When the fifth interface K5 is also connected to the second node B, the output power received by the second portable ultrasound device power supply module 340 can be either the output power transmitted from the trolley 200 to the second node B via the third interface K3 and the fifth interface K5, or the output power of the second battery pack 330. Specifically, when the trolley 200 has mains power input, the output power received by the second portable ultrasound device power supply module 340 is the output power transmitted from the trolley 200 to the second node B via the third interface K3 and the fifth interface K5. The second portable ultrasound device power supply module 340 can convert this power into a third preset amount of power to supply the portable ultrasound device 100. Conversely, when the trolley 200 has mains power input, the output power received by the second portable ultrasound device power supply module 340 is the output power of the second battery pack 330. The second portable ultrasound device power supply module 340 can convert this power into a third preset amount of power to supply the portable ultrasound device 100. When the fifth interface K5 is not connected to the second node B, the output power received by the second portable ultrasound device power supply module 340 may not include the output power transmitted from the trolley 200 to the mobile battery pack 300 via the third interface K3 and the fifth interface K5.

[0073] By adopting the above solution, when the trolley has no mains power input, the portable ultrasound device can be powered by a mobile battery pack along with the trolley, which can further improve the battery life of the portable ultrasound device.

[0074] For example, the mobile battery pack also includes a second step-down module, the input terminal of the second portable ultrasound device power supply module is connected to the output terminal of the second battery pack at the second node; the input terminal of the second step-down module is connected to the second node, and the output terminal is connected to the second control module, for stepping down the output power at the second node to obtain a fourth preset amount of output power, and providing the fourth preset amount of output power to the second control module.

[0075] Return to reference Figure 2The diagram shows the second step-down module 350. One end of the second step-down module 350 can be connected to the second node B, and the other end can be connected to the second control module 310. Through the second step-down module 350, the output voltage at the second node B can be stepped down to a suitable level required by the second control module 310, which can then use this power to operate. It can be understood that if the power supplied at the second node B is the output power transmitted from the trolley 200, the second step-down module 350 can convert this output power; if the power supplied at the second node B is the output power from the second battery pack 330, the second step-down module 350 can also convert this output power. Of course, it can be understood that if the fifth interface K5 is not connected to the second node B, the power supplied at the second node B will not include the output power transmitted from the trolley 200. The fourth preset value can be determined according to the needs of the second control module 310, for example, it can be in the range of 1V to 12V, such as 1.8V, 3.3V, 2.7V, 3.6V, 5.5V, etc. The second step-down module 350 is optional; for example, the second control module 310 can achieve similar operation by integrating a built-in voltage conversion module.

[0076] By employing the above solution, the output power at the second node can be adjusted to a suitable level to support the operation of the second control module via the second step-down module. Using a separate second step-down module effectively ensures the operational stability of the second control module.

[0077] For example, the mobile battery pack also includes an eighth interface; the eighth interface is used to connect to a power adapter for AC-DC conversion of AC mains power; the input of the second charging management module is also connected to the eighth interface for obtaining output power from the power adapter via the eighth interface and charging the second battery pack using the output power of the power adapter.

[0078] refer to Figure 2 The eighth interface, K7, is shown. This eighth interface is used to connect to the power adapter of the portable battery pack (which may be referred to as the first power adapter). The first power adapter may be a power adapter (which may be referred to as the second power adapter) used to connect to the ninth interface (not shown) of the portable ultrasound device 100 to power the portable ultrasound device, or it may be an adapter different from the second power adapter. When the first power adapter and the second power adapter are different power adapters, the second power adapter can be implemented using a higher-power power adapter, which facilitates fast charging of the portable battery pack 300.

[0079] Using the above solution, when the trolley loses power or when the user is away, the battery pack can be easily charged via the power adapter.

[0080] For example, the power adapter is a power adapter for connecting to the ninth interface of the portable ultrasound device to power the portable ultrasound device.

[0081] As mentioned above, the first power adapter and the second power adapter can be the same power adapter. In this case, slow charging is used by default because the power adapter of the portable ultrasound device 100 typically only supports slow charging. Using a shared power adapter can save hardware costs, reduce the weight of the hardware that needs to be carried, and improve the portability of the portable ultrasound device during use.

[0082] According to another aspect of the present invention, an ultrasonic power supply system is provided, including the aforementioned trolley and the aforementioned mobile battery pack.

[0083] According to another aspect of the present invention, an ultrasonic imaging system is provided, including the above-mentioned ultrasonic power supply system and a portable ultrasonic device.

[0084] It should be noted that the above embodiments are illustrative of the present invention and not restrictive, and that those skilled in the art can devise alternative embodiments without departing from the scope of the appended claims. In the claims, any reference signs placed between parentheses should not be construed as limiting the claims. The word "comprising" does not exclude the presence of elements not listed in the claims. The word "a" or "an" preceding an element does not exclude the presence of a plurality of such elements. The present invention can be implemented by means of hardware comprising several different elements and by means of a suitably programmed computer. In the unit claims enumerating several means, several of these means may be embodied by the same item of hardware. The use of the words first, second, and third, etc., does not indicate any order. These words can be interpreted as names.

[0085] The above are merely specific embodiments or descriptions of the present utility model. The protection scope of the present utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in the present utility model should be included within the protection scope of the present utility model. The protection scope of the present utility model shall be determined by the scope of the claims.

Claims

1. A trolley characterized by, The trolley comprises a mains power supply module, a first interface, a second interface, a third interface, a portable ultrasonic equipment detection module and a first control module; The second interface is configured to be connected with a fourth interface of the portable ultrasonic equipment, and the third interface is configured to be connected with a fifth interface of a mobile battery pack, which is configured to supply power for the portable ultrasonic equipment; The input end of the mains power supply module is connected with the first interface, and the output end is connected with the second interface and the third interface respectively, so as to access the mains power via the first interface, convert the accessed mains power into direct current, supply power for the portable ultrasonic equipment via the second interface, and supply power for the mobile battery pack via the third interface; The portable ultrasonic equipment detection module is connected with the second interface, and is configured to detect load information of the portable ultrasonic equipment; The first control module is connected with the portable ultrasonic equipment detection module and the third interface respectively, and is configured to receive the load information sent by the portable ultrasonic equipment detection module, generate a charging control signal based on the load information, and send the charging control signal to the mobile battery pack via the third interface, wherein the mobile battery pack performs fast charging or slow charging based on the charging control signal when charging by using the output power of the trolley.

2. The trolley according to claim 1, characterized in that The portable ultrasonic equipment detection module comprises a portable ultrasonic equipment in-place detection circuit; The first end of the portable ultrasonic equipment in-place detection circuit is connected with the second interface, and the second end is connected with the first control module, so as to detect in-place information of the portable ultrasonic equipment, and the load information comprises the in-place information; The first control module is specifically configured to generate a fast charging signal when the in-place information indicates that the portable ultrasonic equipment is not in place, and send the fast charging signal to the mobile battery pack via the third interface, wherein the charging control signal comprises the fast charging signal, and the mobile battery pack performs fast charging based on the fast charging signal.

3. The trolley of claim 2, wherein, The first control module is specifically further configured to generate a slow charging signal when the in-place information indicates that the portable ultrasonic equipment is in place, and send the slow charging signal to the mobile battery pack via the third interface, wherein the charging control signal further comprises the slow charging signal, and the mobile battery pack performs slow charging based on the slow charging signal.

4. The trolley according to claim 1 or 2, characterized in that The portable ultrasonic equipment detection module comprises a portable ultrasonic equipment current detection circuit; The first end of the portable ultrasonic equipment current detection circuit is connected with the second interface, and the second end is connected with the first control module, so as to detect load current of the portable ultrasonic equipment, and the load information comprises the load current; The first control module is specifically configured to generate a fast charging signal when the load current is less than a preset current, and send the fast charging signal to the mobile battery pack via the third interface, and generate a slow charging signal when the load current is greater than or equal to the preset current, and send the slow charging signal to the mobile battery pack via the third interface, wherein the charging control signal comprises the fast charging signal and the slow charging signal, and the mobile battery pack fast charges based on the fast charging signal and slow charges based on the slow charging signal.

5. The trolley according to any one of claims 1-3, characterized in that The trolley further comprises a first portable ultrasonic equipment power supply module, and an output end of the mains power supply module is connected to the second interface and the third interface at a first node respectively; The input end of the first portable ultrasonic equipment power supply module is connected to the first node, and the output end is connected to the second interface, for converting the output power at the first node into output power of a first preset size, and providing the output power of the first preset size to the portable ultrasonic equipment via the second interface.

6. The trolley of claim 5, wherein, The trolley further comprises a first charging management module, a first battery pack and a first diode; The input end of the first charging management module is connected to the output end of the mains power supply module, and the output end is connected to the input end of the first battery pack, for charging the first battery pack by using the output power of the mains power supply module; The output end of the first battery pack is connected to the anode of the first diode, and the cathode of the first diode is connected to the first node, wherein the output voltage of the first battery pack is higher than the conduction voltage of the first diode, and when the mains power supply module is connected to mains power, the output voltage of the mains power supply module is higher than the output voltage of the first battery pack.

7. The trolley as claimed in claim 6, wherein, The mobile battery pack comprises a second charging management module, a second battery pack and a second diode; The input end of the second charging management module is connected to the fifth interface, and the output end is connected to the input end of the second battery pack, for charging the second battery pack by using the output power obtained from the trolley via the fifth interface; The anode of the second diode is connected to the output end of the second battery pack, and the cathode of the second diode is connected to the fifth interface, wherein the output voltage of the second battery pack is higher than the conduction voltage of the second diode, and when the mains power supply module is connected to mains power, the output voltage of the mains power supply module is higher than the output voltage of the second battery pack.

8. The trolley according to any one of claims 1-3, characterized in that The trolley further comprises a first voltage reduction module, and an output end of the mains power supply module is connected to the second interface and the third interface at a first node respectively; The input end of the first voltage reduction module is connected to the first node, and the output end is connected to the first control module, for reducing the output power at the first node to obtain output power of a second preset size, and providing the output power of the second preset size to the first control module.

9. A mobile battery pack, characterized by The mobile battery pack is used for connecting with the trolley as claimed in any one of claims 1-8 to be charged by the trolley and to supply power for the portable ultrasonic equipment, and comprises a fifth interface, a second control module, a second charging management module, a second battery pack, a second portable ultrasonic equipment power supply module and a sixth interface; The fifth interface is used for connecting with the third interface of the trolley, and the sixth interface is used for connecting with a seventh interface of the portable ultrasonic equipment; The second control module is connected with the fifth interface and a control end of the second charging management module respectively, and is used for receiving the charging control signal sent by the trolley from the fifth interface, generating a corresponding charging command signal according to the charging control signal, and sending the charging command signal to the second charging management module; An input end of the second charging management module is connected with the fifth interface, and an output end thereof is connected with an input end of the second battery pack, and the second charging management module is used for acquiring output power from the trolley via the fifth interface, charging the second battery pack by using the output power of the trolley and performing fast charging or slow charging based on the charging control signal during charging; An input end of the second portable ultrasonic equipment power supply module is connected with an output end of the second battery pack, and an output end thereof is connected with the sixth interface, and the second portable ultrasonic equipment power supply module is used for converting output power at the output end of the second battery pack into output power of a third preset size, and providing the output power of the third preset size to the portable ultrasonic equipment via the sixth interface.

10. The mobile battery pack of claim 9, wherein, The mobile battery pack further comprises a second diode; An anode of the second diode is connected with the output end of the second battery pack, and a cathode thereof is connected with the fifth interface and an input end of the second portable ultrasonic equipment power supply module at a second node, wherein the output voltage of the second battery pack is higher than the conduction voltage of the second diode, and when the mains power supply module has mains access, the output voltage transmitted by the mains power supply module via the third interface is higher than the output voltage of the second battery pack.

11. The mobile battery pack of claim 9 or 10, wherein, The mobile battery pack further comprises a second voltage reduction module, and an input end of the second portable ultrasonic equipment power supply module is connected with the output end of the second battery pack at the second node; An input end of the second voltage reduction module is connected with the second node, and an output end thereof is connected with the second control module, and the second voltage reduction module is used for reducing the output power at the second node to obtain output power of a fourth preset size, and providing the output power of the fourth preset size to the second control module.

12. The mobile battery pack of claim 9 or 10, wherein, The mobile battery pack further comprises an eighth interface; The eighth interface is used for connecting with a power adapter, and the power adapter is used for converting alternating current into direct current for the mains power. An input end of the second charging management module is further connected with the eighth interface, and the second charging management module is used for acquiring output power from the power adapter via the eighth interface, and charging the second battery pack by using the output power of the power adapter.

13. The mobile battery pack of claim 12, wherein, The power adapter is a power adapter used for connecting with a ninth interface of the portable ultrasonic equipment to supply power for the portable ultrasonic equipment.

14. An ultrasonic power supply system characterized by comprising: A trolley comprising a battery pack according to any one of claims 9-13 and a trolley according to any one of claims 1-8.

15. An ultrasound imaging system, characterized by An ultrasonic power supply system comprising a portable ultrasonic device according to claim 14.

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