Portable power supply device

Abstract

The application provides a portable power supply device, which comprises a battery assembly, a heating assembly and a connecting assembly; the battery assembly is connected to the connecting assembly, and the connecting assembly is used for connecting an external device; the heating assembly is also connected to the connecting assembly and is used for heating the battery assembly by using the power supply of the external device through the connecting assembly. The portable power supply device can connect the external device through the connecting assembly, heat the battery assembly by using the power supply of the external device, so that the battery assembly in the portable power supply device can rise from a lower temperature to a target working temperature in a low-temperature environment, and the power supply performance of the portable power supply device is ensured and the use experience of a user is improved in the heating process without consuming the power of the battery assembly itself.

Description

Technical Field

[0001] This application relates to the field of power supply technology, and more particularly to a portable power supply device. Background Technology

[0002] Most current power supply devices lack low-temperature battery heating capabilities. This makes it difficult for these devices to achieve high-current discharge in low-temperature environments, thus failing to meet the power demands of external devices. Alternatively, they may require multiple discharges to raise the battery temperature to the target operating temperature range before achieving high-current discharge, resulting in a poor user experience. Furthermore, some power supply devices utilize the energy stored in the battery for heating, but this consumes the battery's stored energy, reducing its capacity and consequently degrading the device's power supply performance. Summary of the Invention

[0003] This application provides a portable power supply device that enables the portable power supply device to achieve high current discharge without multiple startups in low-temperature environments, and to maintain its power supply performance during startup, thereby improving the user experience.

[0004] In a first aspect, this application provides a portable power supply device, including a battery assembly, a heating assembly, and a connection assembly; wherein the battery assembly is connected to the connection assembly, and the connection assembly is used to connect to an external device; the heating assembly is also connected to the connection assembly to access the power supply of the external device through the connection assembly, and the heating assembly is used to heat the battery assembly using the power supply of the external device.

[0005] In one embodiment, the portable power device includes an automotive emergency jump starter, the external device includes vehicle equipment, and the battery assembly is also connected to the vehicle equipment via a connection component. The battery assembly is used to supply power to the vehicle equipment to start the vehicle in which the vehicle equipment is located.

[0006] In one embodiment, the heating assembly includes a first switching circuit and a heating element, the heating element being connected to a connection assembly via the first switching circuit; the heating element is used to heat the battery assembly by using power supplied from an external device connected to the connection assembly when the first switching circuit is turned on; the heating element is also used to stop heating the battery assembly when the first switching circuit is turned off.

[0007] In one embodiment, the portable power device includes a control circuit connected to a heating component; the control circuit is configured to control the heating component to operate when the temperature of the battery component is less than or equal to a first temperature threshold, so that the heating component uses power from an external device to heat the battery component.

[0008] In one embodiment, the portable power device includes a control circuit connected to a heating component, the control circuit being configured to disable the heating component when the temperature of the battery component exceeds a second temperature threshold.

[0009] In one embodiment, when the battery assembly is heated, the control circuit is further configured to control the heating assembly to not operate when the temperature of the battery assembly is greater than a second temperature threshold, wherein the second temperature threshold is greater than or equal to the first temperature threshold.

[0010] In one embodiment, the control circuit includes a temperature control circuit and a temperature detection circuit; the temperature control circuit is connected to the heating component and the temperature detection circuit; the temperature detection circuit is used to acquire the temperature information of the battery component; the temperature control circuit is used to acquire the temperature information of the battery component through the temperature detection circuit and output a corresponding control signal to the heating component to control the heating component to work or stop working.

[0011] In one embodiment, the portable power device further includes a second switching circuit connected between the battery assembly and the connection assembly; when the second switching circuit is turned on, the battery assembly supplies power to an external device connected to the connection assembly through the second switching circuit.

[0012] In one embodiment, the heating assembly includes a first switching circuit and a heating element, wherein the first switching circuit and the second switching circuit are respectively connected to a connecting assembly; the battery assembly is used to supply power to the vehicle containing the external device through the second switching circuit when the second switching circuit is turned on, so as to start the vehicle; the heating element is used to heat the battery assembly by using power supplied by the external device connected to the connecting assembly when the first switching circuit is turned on; the heating element is also used to stop heating the battery assembly when the first switching circuit is turned off.

[0013] In one embodiment, the portable power device further includes a control circuit connected to a second switching circuit. The control circuit is used to control the second switching circuit to turn on, wherein the control circuit allows the second switching circuit to turn on when the battery assembly is heated or when the temperature of the battery assembly is less than or equal to a first temperature threshold.

[0014] In one embodiment, the portable power device further includes a control circuit connected to a second switching circuit, wherein the control circuit is configured to not control the second switching circuit to conduct when the temperature of the battery assembly is less than or equal to a first temperature threshold, or the control circuit is configured to not control the second switching circuit to conduct when the battery assembly is heated.

[0015] In one embodiment, the control circuit is further configured to control the second switching circuit to conduct when the temperature of the battery assembly is within a first temperature range, so that the battery assembly supplies power to an external device connected to the assembly through the second switching circuit, wherein the minimum value of the first temperature range is greater than a first temperature threshold.

[0016] In one embodiment, the connection component includes at least one of a cable, a connector clip, and an output interface.

[0017] In one embodiment, the portable power device further includes a third switching circuit, which is also connected to the heating component and the battery component. When the third switching circuit is turned on, the heating component uses the power supplied by the battery component to heat the battery component.

[0018] In one embodiment, the portable power device further includes: a control circuit for controlling a third switch circuit to conduct, based on the condition that the state of the external device does not meet a preset condition, so as to heat the battery assembly using power supplied by the battery assembly; the state of the external device includes at least one of voltage, current, power, or charge.

[0019] This application provides a portable power supply device, including a battery assembly, a heating assembly, and a connection assembly. The battery assembly is connected to the connection assembly, which is used to connect to an external device. The heating assembly is also connected to the connection assembly to access the power supply from the external device. The heating assembly uses the power supply from the external device to heat the battery assembly. This portable power supply device can connect to an external device via the connection assembly and use the power supply from the external device to heat the battery assembly. This allows the battery assembly in the portable power supply device to rise from a lower temperature to a normal temperature in a low-temperature environment without consuming its own power during the heating process. Thus, even when the battery assembly reaches the target operating temperature, no power is consumed, ensuring the power supply performance of the portable power supply device and improving the user experience. Attached Figure Description

[0020] To more clearly illustrate the technical solutions of the embodiments of this application, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 A schematic diagram of the structure of a portable power supply device provided in an embodiment of this application;

[0022] Figure 2 This is a schematic diagram of the structure of a portable power supply device provided in another embodiment of this application;

[0023] Figure 3 A schematic diagram of the structure of a portable power supply device provided in yet another embodiment of this application;

[0024] Figure 4 This is a schematic diagram of the structure of a portable power supply device provided in another embodiment of this application;

[0025] Figure 5A schematic diagram of the structure of a portable power supply device provided in yet another embodiment of this application;

[0026] Figure 6 This is a schematic diagram of the structure of a portable power supply device provided in another embodiment of this application;

[0027] Figure 7 This is a usage scenario diagram of a portable power supply device provided in an embodiment of this application. Detailed Implementation

[0028] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0029] The following detailed description of some embodiments of this application is provided in conjunction with the accompanying drawings. Unless otherwise specified, the following embodiments and features can be combined with each other.

[0030] Please refer to Figure 1 , Figure 1 A schematic diagram of the structure of a portable power supply device 10 provided in an embodiment of this application.

[0031] like Figure 1 As shown, the portable power device 10 includes a battery assembly 110, a heating assembly 120, and a connection assembly 130; wherein, the battery assembly 110 is connected to the connection assembly 130, and the connection assembly 130 is used to connect to an external device 20; the heating assembly 120 is also connected to the connection assembly 130 to access the power supply of the external device 20 through the connection assembly 130, and the heating assembly 120 is used to heat the battery assembly 110 using the power supply of the external device 20.

[0032] For example, when the portable power supply device 10 is in a low-temperature environment, the temperature of the battery component 110 of the portable power supply device 10 will be affected by the ambient temperature and remain at a low temperature. At this time, if the battery component 110 is required to supply power, it may not be able to achieve a large current discharge due to the temperature effect, resulting in the current or voltage output by the portable power supply device 10 not meeting the power demand, leading to a poor user experience. However, in the portable power supply device 10 provided above, by connecting the connecting component 130 to the external device 20, the heating component 120 in the portable power supply device 10 can use the power supply from the external device 20 to heat the battery component 110, causing the temperature of the battery component 110 to rise to the target operating temperature. This allows the current or voltage output by the battery component 110 to meet the usage requirements, solving the problem of insufficient current or voltage output by the portable power supply device 10 in low-temperature environments and improving the user experience.

[0033] For example, the heating component 120 includes at least one of a heating film and a heating rod; optionally, the heating component 120 includes other components with heating functions.

[0034] Optionally, the heating component 120 may cover the battery component 110, be disposed adjacent to the battery component 110, or be disposed within the battery component 110 to heat the battery component 110.

[0035] Optionally, the operating conditions of the heating component 120 may include at least one of the following: the temperature of the battery component 110 is lower than a preset temperature, the connection component 130 is connected to an external device 20, the voltage of the external device 20 connected to the connection component 130 is greater than a preset threshold, responding to a user's button control command, or responding to the power demand of the external device 20. For example, when the battery component 110 is at a low temperature and the connection component 130 is connected to an external device 20, the heating component 120 performs a heating operation to raise the temperature of the battery component 110 to a normal temperature. Similarly, when the portable power device 10 responds to a user's button control command and the battery component 110 is at a low temperature, the heating component 120 performs a heating operation.

[0036] like Figure 2 As shown, Figure 2 This is a schematic diagram of the structure of a portable power supply device 10 provided in another embodiment of this application.

[0037] In some embodiments, the heating assembly 120 includes a first switching circuit 122 and a heating element 121. The heating element 121 is connected to the connection assembly 130 through the first switching circuit 122. When the first switching circuit 122 is turned on, the heating element 121 is used to heat the battery assembly 110 by using the external device 20 connected to the connection assembly 130 for power supply.

[0038] For example, the heating element 121 is connected to the connection component 130 via the first switching circuit 122. When the portable battery device is in a low temperature state, the first switching circuit 122 is turned on, so that the heating element 121 is powered by the external device 20 connected to the connection component 130 to heat the battery component 110.

[0039] In other embodiments, the heating component 120 is also used to stop heating the battery assembly 110 when the first switching circuit 122 is turned off.

[0040] When the portable battery device is not in a low-temperature state or the temperature of the battery assembly 110 rises to the target operating temperature, the first switching circuit 122 is turned off, causing the heating component 120 to stop heating the battery assembly 110. In some embodiments, the first switching circuit 122 may include one or more switching units. The switching units may control the switching state based on one or more control signals, such as control signals from one or more temperature detection modules, or the switching units may control the switching state based on their own temperature, or the switching units may control the switching state based on the control of other switching units.

[0041] The switching units of the first switching circuit 122 can be configured in various ways. For example, the first switching circuit 122 includes multiple switching units disposed in the power path of the heating element 121, the connecting component 130, and the external device 20. When all switching units in the power path are turned on, the power path of the heating element 121 is turned on, and the heating element 121 can receive power from the external device 20 for heating. For example, the first switching circuit 122 includes multiple switching units, at least one of which is a main switching unit disposed in the power path of the heating element 121, and one or more other switching units are secondary switching units used to control the main switching unit. The secondary switching units control the switching state based on control signals from other detection or control circuits, thereby controlling the main switching unit to turn on, and the power path of the heating element 121 to turn on. The following... Figure 3 , Figure 4 and Figure 5 The provided embodiments are illustrative examples.

[0042] like Figure 3 As shown, Figure 3 This is a schematic diagram of the structure of a portable power supply device 10 provided in another embodiment of this application.

[0043] In some embodiments, the first switching circuit 122 includes at least one first switching unit 1221 and a second switching unit 1222, wherein the first switching unit 1221 and the second switching unit 1222 may be disposed in the power supply path of the heating element 121, and the heating element 121 is connected to the first switching unit 1221 and the second switching unit 1222; the heating element 121 is used to heat the battery assembly 110 by utilizing the power supply of the external device 20 connected by the connecting component 130 when both the first switching unit 1221 and the second switching unit 1222 are turned on; the heating element 121 is also used to stop heating the battery assembly 110 when either the first switching unit 1221 or the second switching unit 1222 is turned off.

[0044] For example, the first switch unit 1221 is turned on when the temperature of the battery assembly 110 is less than or equal to a first temperature threshold, and the second switch unit 1222 is turned on when the temperature of the battery assembly 110 is less than or equal to the first temperature threshold; and the first switch unit 1221 is turned off when the temperature of the battery assembly 110 is greater than a second temperature threshold, wherein the second temperature threshold is greater than or equal to the first temperature threshold; the second switch unit 1222 is turned off when the temperature of the battery assembly 110 is greater than a third temperature threshold, wherein the third temperature threshold is greater than or equal to the second temperature threshold. Therefore, if the first switch unit 1221 fails to turn off for some reason when the temperature of the battery assembly 110 is greater than the first temperature threshold, the second switch unit 1222 can be turned off after the temperature of the battery assembly 110 rises to greater than the third temperature threshold to stop heating the battery assembly 110, thereby protecting the battery assembly 110.

[0045] like Figure 4 As shown, Figure 4 This is a schematic diagram of the structure of a portable power supply device 10 provided in another embodiment of this application.

[0046] In some embodiments, the portable power device 10 includes a control circuit 140 connected to a heating component 120; wherein the control circuit 140 is used to control the heating component 120 to operate when the temperature of the battery component 110 is less than or equal to a first temperature threshold, so that the heating component 120 uses the power supplied by the external device 20 to heat the battery component 110.

[0047] For example, the control circuit 140 can control whether the heating component 120 works based on the temperature of the battery component 110, so that when the temperature of the battery component 110 is less than or equal to a first temperature threshold, the heating component 120 is controlled to work to heat the battery component 110.

[0048] In some embodiments, the control circuit 140 is further configured to control the heating component 120 to not operate when the temperature of the battery assembly 110 is greater than a second temperature threshold. The second temperature threshold is greater than or equal to a first temperature threshold. In a specific implementation, the control circuit 140 is connected to a first switching circuit 122 to control the heating component 120 to operate or not operate by controlling the first switching circuit 122 to be turned on or off.

[0049] In some embodiments, the temperature thresholds for determining whether the heating component 120 is working before and during heating can be the same or different; that is, the first temperature threshold can be greater than or equal to the second temperature threshold. When the heating component 120 is not activated, the control circuit 140 controls the heating component 120 to operate to heat the battery component 110 when the temperature of the battery component 110 is less than or equal to the first temperature threshold. When the heating component 120 is activated, the control circuit 140 maintains the heating component 120 in operation when the temperature of the battery component 110 is less than or equal to the second temperature threshold, and controls the heating component 120 to stop operating when the temperature of the battery component 110 is greater than the second temperature threshold; wherein the second temperature threshold is greater than or equal to the first temperature threshold.

[0050] For example, if the first temperature threshold and the second temperature threshold are both 0°C, then the heating component 120 will be activated when the battery assembly 110 is less than or equal to 0°C, and will be deactivated when the battery assembly 110 is heated to a temperature greater than 0°C. If the first temperature threshold is 0°C and the second temperature threshold is 5°C, then if the temperature of the battery assembly 110 is below 0°C before the heating component 120 is activated, the heating component 120 will be activated; during the operation of the heating component 120, the heating will only be deactivated when the temperature of the battery assembly 110 is greater than 5°C.

[0051] Please see Figure 5 , Figure 5 This is a schematic diagram of the structure of a portable power supply device 10 provided in another embodiment of this application.

[0052] In some embodiments, the control circuit 140 includes a temperature control circuit 142 and a temperature detection circuit 141; the temperature control circuit 142 is connected to the heating component 120 and the temperature detection circuit 141; wherein, the temperature detection circuit 141 is used to acquire the temperature information of the battery component 110; the temperature control circuit 142 is used to acquire the temperature information of the battery component 110 through the temperature detection circuit 141, and output a corresponding control signal to the heating component 120 to control the heating component 120 to work or stop working.

[0053] Understandably, the temperature of the battery pack 110 is obtained through the temperature detection circuit 141, so that the temperature control circuit 142 outputs a corresponding control signal to the heating component 120 based on the temperature information of the battery pack 110 obtained by the temperature detection circuit 141, thereby controlling the heating component 120 to heat the battery pack 110 or stop heating.

[0054] It should be noted that the temperature detection circuit 141 may include a comparator to compare the temperature of the battery assembly 110 with a first temperature threshold and output the corresponding information to the temperature control circuit 142, so that the temperature control circuit 142 outputs a corresponding control signal to the heating assembly 120. Optionally, the temperature detection circuit 141 may be a temperature detection circuit 141 commonly used in the art, which will not be described here.

[0055] For example, the temperature control circuit 142 is also connected to the first switch circuit 122 to output a corresponding control signal to the first switch circuit 122 to control the heating component 120 to work or not work.

[0056] Please continue reading. Figure 5 In other embodiments, the control circuit 140 further includes a controller 143. The controller 143 is used to output a corresponding second control signal to the first switching circuit 122 in the heating component 120 based on the temperature information detected by the temperature detection circuit 141, so as to control the heating component 120 to work or not work. The controller 143 may include at least one of a microcontroller, a chip, or a control circuit composed of discrete hardware. The embodiments of this application do not limit the specific implementation structure of the controller 143, as long as it can achieve the function of the controller 143 outputting a control signal based on temperature information.

[0057] Please continue reading. Figure 5In the specific implementation process, the first switching circuit 122 includes a first switching unit 1221 and a second switching unit 1222. The first switching unit 1221 includes a first switching transistor Q1, a second switching transistor Q2, and a relay K1. The second switching unit 1222 includes a temperature control switch P1. The first end of the temperature control switch P1 is connected to the connecting assembly 130, and the second end of the temperature control switch P1 is connected to the first end of the coil in the relay K1. The second end of the coil in the relay K1 is connected to the first end of the first switching transistor Q1, and the second end of the first switching transistor Q1 is grounded. The first control terminal of the first switching transistor Q1 is connected to the temperature control circuit 142, and the second control terminal of the first switching transistor Q1 is connected to the controller 143. The first control terminal of the relay K1... The contact is connected to the connection assembly 130. The second contact of the relay K1 is connected to one end of the heating element 121. The second end of the heating element 121 is connected to the first end of the second switch Q2. The second end of the second switch Q2 is grounded. The first control end of the second switch Q2 is connected to the temperature control circuit 142. The second control end of the second switch Q2 is connected to the controller 143. When the temperature of the battery assembly 110 is less than or equal to the first temperature threshold, both the temperature control switch P1 and the first switch Q1 are turned on. This makes the first contact of the relay K1 connected to the second contact, and the second switch Q2 is also turned on, so that the heating element 121 can use the power supply of the external device 20 connected to the connection assembly 130 to heat the battery assembly 110.

[0058] For example, the first switch Q1 and the second switch Q2 may include MOSFETs or transistors.

[0059] It should be noted that the first switch Q1 is connected to the temperature control circuit 142 and the controller 143 respectively, and the second switch Q2 is connected to the temperature control circuit 142 and the controller 143 respectively. Thus, the heating element 121 can be turned on or off according to the control signal sent by the temperature control circuit 142 and the second control signal sent by the controller 143, so as to control whether the heating element 121 heats the battery assembly 110.

[0060] Understandably, if the controller 143 malfunctions and cannot send the second control signal to the first switch Q1 and the second switch Q2 in a timely manner, the first switch Q1 and the second switch Q2 can still be turned on or off according to the control signal sent by the temperature control circuit 142, so as to improve the reliability of the operation of the heating element 121 and avoid the situation where the heating element 121 cannot be controlled when the temperature control circuit 142 or the controller 143 malfunctions.

[0061] For example, in order to protect the first switching transistor Q1, a resistor R1 can be provided at the connection between the first switching transistor Q1 and the relay to protect the first switching transistor Q1.

[0062] Please see Figure 6 , Figure 6This is a schematic diagram of the structure of a portable power supply device 10 provided in another embodiment of this application.

[0063] In some embodiments, the portable power device 10 further includes a second switching circuit 150, which is connected between the battery assembly 110 and the connection assembly 130. When the second switching circuit 150 is turned on, the battery assembly 110 supplies power to the external device 20 connected to the connection assembly 130 through the second switching circuit 150.

[0064] Optionally, the battery assembly 110 is connected to an external device 20 connected to the connection assembly 130 via a second switching circuit 150, so that when the second switching circuit 150 is turned on, the battery assembly 110 can supply power to the external device 20 connected to the connection assembly 130 via the second switching circuit 150.

[0065] For example, the second switching circuit 150 may include at least one switching device such as a switching transistor or a relay, and the switching device may be disposed in the positive or negative output path of the battery assembly 110 to the external device 20. In addition, the second switching circuit 150 may also include a switch driving module for controlling the switching device to be turned on or off, and the switch driving module may include at least one device such as a switching transistor, a diode or a resistor.

[0066] In the specific implementation process, the first switch circuit 122 and the second switch circuit 150 are respectively connected to the connection component 130 so that when the second switch circuit 150 is turned on, the battery component 110 can supply power to the vehicle where the external device 20 is located through the second switch circuit 150 to start the vehicle; and when the first switch circuit 122 is turned on, the heating element 121 can heat the battery component 110 through the external device 20 connected to the connection component 130, and stop heating the battery component 110 when the first switch circuit 122 is turned off.

[0067] For example, the first switch circuit 122 and the second switch circuit 150 can be connected to the same electrode of the connection component 130, or the first switch circuit 122 and the second switch circuit 150 can be connected to different electrodes of the connection component 130, as long as the second switch circuit 150 can form a path with the external device 20 through the connection component 130.

[0068] In some embodiments, the portable power supply device 10 further includes a control circuit 140 connected to a second switching circuit 150. The control circuit 140 controls the second switching circuit 150 to be turned on, wherein the control circuit 140 allows the second switching circuit 150 to be turned on when the battery assembly 110 is heating up or when the temperature of the battery assembly 110 is less than or equal to a first temperature threshold. For example, during the heating process of the battery assembly 110, if the portable power supply device 10 detects an external vehicle starting operation, the control circuit 140 responds to the starting operation by controlling the second switching circuit 150 to be turned on. Thus, the user can normally use the portable power supply device 10 to power the external device 20 while the battery is heating up.

[0069] In some embodiments, the control circuit 140 is configured to not control the second switching circuit 150 to turn on when the temperature of the battery assembly 110 is less than or equal to a first temperature threshold. Alternatively, the control circuit 140 is configured to not control the second switching circuit 150 to turn on when the battery assembly 110 is heated.

[0070] For example, the control circuit 140 may be as provided in the above embodiments, and the control circuit 140 is also connected to the second switching circuit 150. When the temperature of the battery assembly 110 is less than or equal to a first temperature threshold, the control circuit 140 does not control the second switching circuit 150 to conduct, or when the battery assembly 110 is heated, it does not control the second switching circuit 150 to conduct, so that when the temperature of the battery assembly 110 is less than or equal to the first temperature threshold, it cannot supply power to the external device 20 connected to the connection component 130, thus ensuring that the battery assembly 110 supplies power to the external device 20 connected to the connection component 130 only when the battery assembly 110 is at the target operating temperature. The control circuit 140 may include an integrated control module that can control the first switching circuit 122 and the second switching circuit 150. The control circuit 140 may also include multiple control modules, wherein at least one control module is used to control the first switching circuit 122, and at least one control module is used to control the second switching circuit 150.

[0071] In other embodiments, the control circuit 140 is also configured to control the second switching circuit 150 to turn on when the temperature of the battery assembly 110 is within a first temperature range, so that the battery assembly 110 supplies power to the external device 20 connected to the connection assembly 130 through the second switching circuit 150, wherein the minimum value of the first temperature range is greater than a first temperature threshold.

[0072] For example, during the heating process of the heating component 120 heating the battery component 110, the temperature of the battery component 110 gradually rises. When the temperature of the battery component 110 is within a first temperature range, the control circuit 140 controls the second switching circuit 150 to turn on, so that the battery component 110 can supply power to the external device 20 connected to the connection component 130 through the second switching circuit 150. It can be understood that when the temperature of the battery component 110 is within the first temperature range, the temperature of the battery component 110 is greater than the first temperature threshold. Therefore, the control circuit 140 controls the first switching circuit 122 to turn off, so as to stop heating the battery component 110, thereby preventing the battery component 110 from overheating during operation and damaging the battery component 110 or other components in the portable power device 10.

[0073] For example, the conditions under which the control circuit 140 turns on the second switching circuit 150 may include at least one of the following: responding to a user's button output operation, the connection component 130 being connected to an external device 20, the voltage value of the external device 20 connected to the connection component 130 meeting a preset voltage value range, or the external device 20 connected to the connection component 130 performing an ignition operation. Correspondingly, the portable power device 10 may include at least one of a button module, an external device 20 detection module, or an external device 20 voltage detection module, and the control circuit 140 is connected to the button module, the external device 20 detection module, or the external device 20 voltage detection module. The above-mentioned turn-on conditions are examples; the control circuit 140 may also turn on the second switching circuit 150 based on other turn-on conditions. In this way, the portable power device 10 only allows the second switching circuit 150 to turn on under turn-on conditions, which helps to save battery power and improve electrical safety.

[0074] For example, the control circuit 140 can prevent the second switching circuit 150 from conducting under abnormal conditions. Abnormal conditions may include at least one of the following: short circuit in the connection component 130, overcurrent in the output circuit, overcurrent in the input circuit, undervoltage in the battery component 110, undervoltage in the external device 20, overtemperature in the portable power supply device 10, or incorrect connection between the battery component 110 and the external device 20. Correspondingly, the portable power supply device 10 may include at least one of the following detection modules: a short circuit detection module, an output current detection module, an input current detection module, a battery component voltage detection module, an external device 20 voltage detection module, a temperature detection module, and an external device 20 connection detection module. At least one detection module may be connected to the control circuit 140. Thus, by preventing the portable power supply device 10 from conducting the second switching circuit 150 under abnormal conditions, electrical safety is improved.

[0075] Please continue reading. Figure 6In some other embodiments, the portable power device 10 further includes a third switching circuit 160, which is also connected to the heating component 120 and the battery component 110. When the third switching circuit 160 is turned on, the heating component 120 can use the power supplied by the battery component 110 to heat the battery component 110.

[0076] By way of example, the portable power supply device 10 also includes at least one of the following:

[0077] The control circuit 140 is also configured to control the third switching circuit 160 to conduct when the state of the external device 20 does not meet preset conditions, so as to heat the battery assembly 110 using power from the battery assembly 110. In this case, the control circuit 140 can control the external device 20 and the battery assembly 110 to supply power to the heating assembly 120 together, or it can control the battery assembly 110 to supply power for heating alone. The conditions under which the state of the external device 20 does not meet preset conditions may include: voltage lower than a preset voltage value, current lower than a preset current value, power lower than a preset power value, or battery level lower than a preset battery level, or the absence of the external device 20. The control circuit 140 may include an integrated control module that can control the first switching circuit 122, the second switching circuit 150, and the third switching circuit 160. The control circuit 140 may also include multiple control modules, wherein at least one control module controls the first switching circuit 122, at least one control module controls the second switching circuit 150, and at least one control module controls the third switching circuit 160.

[0078] The external device 20 detection circuit is used to detect the status of the external device 20, which includes at least one of voltage, current, power, electrical charge, or presence. The information obtained by the external device 20 detection circuit may include specific parameter values ​​or level signals based on those parameter values. The external device 20 detection circuit can send the status detection information of the external device 20 to the control circuit 140, so that the control circuit 140 can control the third switching circuit 160.

[0079] For example, the external device 20 detection circuit may include an external device 20 voltage detection module, and the control circuit 140 may control the third switch circuit 160 to turn on when the voltage of the external device 20 is lower than a preset voltage value and the battery assembly 110 needs to be heated, based on the detection result of the external device 20 voltage detection module.

[0080] For example, the first switch circuit 122 and the third switch circuit 160 can be different switch circuits, with the heating element 121 connected to the first switch circuit 122 and the third switch circuit 160 respectively. Alternatively, the first switch circuit 122 and the third switch circuit 160 can also be the same switch circuit, such as a switch circuit including a switching switch. The fixed end of the switching switch is connected to the heating element 121, one moving end of the switching switch is connected to the battery assembly 110, and the other moving end is used to connect to the external device 20. The switch circuit may also include other electronic components, such as a voltage regulator module, resistors, diodes, fuses, etc., which will not be described in detail here.

[0081] Please see Figure 7 , Figure 7 This is a usage scenario diagram of the portable power supply device 10 provided in an embodiment of this application.

[0082] In some embodiments, the portable power device 10 includes an automotive emergency jump starter 11, and the external device 20 includes vehicle equipment, such as a car battery 21, a vehicle load such as a starter motor, etc. The battery assembly 110 is also used to connect the vehicle equipment, such as to the car battery 21, via a connection component 130. The battery assembly 110 is used to supply power to the vehicle equipment so that the vehicle in which the vehicle equipment is located can be started.

[0083] For example, in low-temperature environments, if the car emergency jump starter 11 is used directly to power the car battery 21, the battery component 110 may not be able to achieve high-current discharge due to its low temperature, resulting in the ignition performance of the car emergency jump starter 11 being less than expected and a poor user experience. However, the car emergency jump starter 11 provided in this application embodiment can heat the battery component 110 in low-temperature environments by using the power supply from the car battery 21. This can heat the battery component 110 without consuming the electrical energy stored in the battery component 110, allowing it to reach the target operating temperature. This enables the battery component 110 to achieve high-current discharge without consuming the electrical energy stored in the battery component 110, thus ensuring the ignition performance of the car emergency jump starter 11.

[0084] In some embodiments, the connection component 130 includes at least one of a cable 131, a connector clip, and an output interface.

[0085] For example, such as Figure 7 As shown, the connection component 130 includes a cable 131 and a connector. The cable 131 connects the battery assembly 110 and the connector. The positive connector and the negative connector are connected to the positive and negative terminals of the car battery 21, thereby realizing the connection between the car emergency jump starter 11 and the car battery 21.

[0086] In other embodiments, the connection component 130 may further include a circuit board, with the cable connected to the circuit board. The circuit board may include at least one of protection circuitry or control circuitry, thereby enabling protection or intelligent control of the cable output. The connection between the connection component 130 and the battery assembly 110 may be a fixed connection or a pluggable connection.

[0087] In some embodiments, the portable power supply device 10 further includes a current sampling circuit connected to the battery assembly 110 and the control circuit 140. The current sampling circuit is used to detect the current output by the battery assembly 110 to the external device 20 connected to the connection assembly 130 and / or detect the current flowing through the heating assembly 120, so that the control circuit 140 can adjust the magnitude of the current output by the battery assembly 110 to the external device 20 by detecting the current output by the battery assembly 110 through the current sampling circuit; and / or adjust the magnitude of the current flowing through the heating assembly 120 by detecting the current flowing through the heating assembly 120, so as to adjust the heating temperature of the battery assembly 110.

[0088] This application provides a portable power supply device 10, including a battery assembly 110, a heating assembly 120, and a connection assembly 130. The battery assembly 110 is connected to the connection assembly 130, which is used to connect to an external device 20. The heating assembly 120 is also connected to the connection assembly 130 to access the power supply from the external device 20. The heating assembly 120 uses the power supply from the external device 20 to heat the battery assembly 110. This portable power supply device 10 can heat the battery assembly 110 in low-temperature environments by accessing the power supply from the external device 20 through the connection assembly 130, allowing the battery assembly 110 to reach its target operating temperature. This avoids the problem that the battery assembly 110 cannot achieve high-current discharge in low-temperature environments, resulting in insufficient output current. Furthermore, the heating process does not consume the stored electrical energy of the battery assembly 110, ensuring the power supply performance of the battery assembly 110 at the target operating temperature.

[0089] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection. They can refer to a mechanical connection or an electrical connection. They can refer to a direct connection or an indirect connection through an intermediate medium, and they can refer to the internal communication of two components or the interaction between two components. For those skilled in the art, the specific meaning of the above terms in this application can be understood according to the specific circumstances.

[0090] The foregoing disclosure provides many different embodiments or examples for implementing different structures of this application. To simplify the disclosure, specific examples of components and arrangements are described above. Of course, these are merely examples and are not intended to limit the scope of this application. Furthermore, reference numerals and / or letters may be repeated in different examples; such repetition is for simplification and clarity and does not in itself indicate a relationship between the various embodiments and / or arrangements discussed. In addition, examples of various specific processes and materials are provided in this application, but those skilled in the art will recognize the application of other processes and / or the use of other materials.

[0091] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with an embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0092] The above embodiments are merely preferred embodiments of this application and should not be construed as limiting the scope of protection of this application. Any non-substantial changes and substitutions made by those skilled in the art based on this application shall fall within the scope of protection claimed by this application.

Claims

1. A portable power supply device, characterized in that, The portable power supply device includes a car emergency jump starter, and further includes a battery assembly, a heating assembly, a connection assembly, and a second switching circuit; wherein, The battery assembly is connected to the connection assembly, which is used to connect to external devices, including vehicle equipment. The heating component is also connected to the connection component to access the power supply of the external device through the connection component, and the heating component is used to heat the battery component using the power supply of the external device; The battery assembly is also used to connect the vehicle equipment via the connection assembly, and the battery assembly is used to supply power to the vehicle equipment so as to start the vehicle in which the vehicle equipment is located. The second switching circuit is connected between the battery assembly and the connection assembly. The heating assembly further includes a first switching circuit and a heating element. The first switching circuit and the second switching circuit are respectively connected to the connection assembly. The battery assembly is also used to supply power to the vehicle where the external device is located through the second switching circuit when the second switching circuit is turned on, so as to start the vehicle. The heating element is used to heat the battery assembly by using power supplied by the external device connected to the connection assembly when the first switching circuit is turned on.

2. The portable power supply device as described in claim 1, characterized in that, The heating assembly includes a first switching circuit and a heating element; the heating element is used to heat the battery assembly by powering an external device connected to the connection assembly when the first switching circuit is turned on; the heating element is also used to stop heating the battery assembly when the first switching circuit is turned off.

3. The portable power supply device as described in claim 1, characterized in that, The portable power supply device includes a control circuit, which is connected to the heating component. The control circuit is used to control the heating component to operate when the temperature of the battery component is less than or equal to a first temperature threshold, so that the heating component uses the power supplied by the external device to heat the battery component.

4. The portable power supply device as described in claim 1, characterized in that, The portable power supply device includes a control circuit, which is connected to the heating component. The control circuit is used to control the heating component to not operate when the temperature of the battery assembly is greater than a second temperature threshold.

5. The portable power supply device as described in claim 3, characterized in that, When the battery assembly is heated, the control circuit is further configured to control the heating component to stop working when the temperature of the battery assembly is greater than a second temperature threshold, wherein the second temperature threshold is greater than or equal to the first temperature threshold.

6. The portable power supply device as described in claim 3, characterized in that, The control circuit includes a temperature control circuit and a temperature detection circuit; the temperature control circuit is connected to the heating component and the temperature detection circuit. The temperature detection circuit is used to acquire the temperature information of the battery assembly; The temperature control circuit is used to obtain the temperature information of the battery assembly through the temperature detection circuit, and output a corresponding control signal to the heating assembly to control the heating assembly to work or stop working.

7. The portable power supply device as described in claim 1, characterized in that, The heating element is also used to stop heating the battery assembly when the first switching circuit is turned off.

8. The portable power supply device as described in claim 1, characterized in that, The portable power supply device further includes a control circuit, which is connected to the second switching circuit and controls the second switching circuit to conduct. When the battery assembly is heated or when the temperature of the battery assembly is less than or equal to a first temperature threshold, the control circuit allows the second switching circuit to be turned on.

9. The portable power supply device as described in claim 1, characterized in that, The portable power supply device further includes a control circuit, which is connected to the second switching circuit, wherein... The control circuit is configured to not control the second switching circuit to conduct when the temperature of the battery assembly is less than or equal to a first temperature threshold, or the control circuit is configured to not control the second switching circuit to conduct when the battery assembly is heated.

10. The portable power supply device as claimed in claim 9, characterized in that, The control circuit is also configured to control the second switching circuit to turn on when the temperature of the battery assembly is within a first temperature range, so that the battery assembly supplies power to the external device connected to the connection assembly through the second switching circuit, wherein the minimum value of the first temperature range is greater than the first temperature threshold.

11. The portable power supply device as claimed in claim 1, characterized in that, The connection component includes at least one of the following structures: cable, connector clip, and output interface.

12. The portable power supply device as claimed in claim 1, characterized in that, The portable power supply device also includes a third switching circuit, which is connected to the heating component and the battery component. When the third switching circuit is turned on, the heating component uses the power supplied by the battery component to heat the battery component.

13. The portable power supply device as claimed in claim 12, characterized in that, The portable power supply device also includes: A control circuit is configured to control the third switch circuit to conduct when the state of the external device does not meet preset conditions, so as to heat the battery assembly using the power supplied by the battery assembly; the state of the external device includes at least one of voltage, current, power, or charge.

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