Portable energy storage device

Abstract

The utility model discloses a portable energy storage device, which comprises an energy storage assembly, a circuit board assembly and a shell assembly, and is characterized in that the energy storage assembly is used for storing electric energy; the circuit board assembly is electrically connected with the energy storage assembly; the shell assembly comprises a body, a shell part and a heat dissipation part. A containing cavity is formed in the body, the energy storage assembly is contained in the containing cavity, and the shell part is arranged on the peripheral side of the body. Wherein the heat dissipation component comprises a first heat dissipation piece and a second heat dissipation piece, the first heat dissipation piece is located between the body and the shell component and corresponds to the containing cavity, and at least part of the circuit board assembly is fixed to the side, away from the body, of the first heat dissipation piece; the portable energy storage device comprises a shell component, a first heat dissipation piece and a second heat dissipation piece, the first heat dissipation piece is connected with the shell component, the second heat dissipation piece is connected with the first heat dissipation piece, at least part of the second heat dissipation piece is exposed out of the shell component, and the first heat dissipation piece and the second heat dissipation piece are both metal heat dissipation pieces. Therefore, the service life of the portable energy storage device is effectively prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of mobile power sources, in particular to a portable energy storage device. Background Art

[0002] A portable energy storage device is a device that can be carried around and can store electrical energy. Typically, a portable energy storage device is used to charge consumer electronic products such as handheld mobile devices (eg, mobile phones, tablets).

[0003] In the related art, most portable energy storage devices adopt a sealed plastic shell structure design. With the development of technology and the popularization of high-power fast charging technology, it is required that the portable energy storage device can store more electricity and can input and / or output large currents. However, the demand for large electricity and high current increases the number of energy storage components carried by the portable energy storage device, increases the volume and increases the heat generation during operation. If the structural firmness and heat dissipation performance of the portable energy storage device are not good, it will affect the service life of the portable energy storage device.

[0004] Therefore, how to balance the structural firmness and heat dissipation performance of the portable energy storage device has become an urgent problem to be solved by those skilled in the art. Utility Model Content

[0005] The utility model provides a portable energy storage device with both structural firmness and heat dissipation performance, so as to effectively improve the service life of the portable energy storage device.

[0006] The utility model provides a portable energy storage device, comprising:

[0007] Energy storage components for storing electrical energy;

[0008] a circuit board assembly, the circuit board assembly being electrically connected to the energy storage assembly; and

[0009] A housing assembly, the housing assembly comprising a body, a housing component and a heat dissipation component;

[0010] The body is formed with a receiving cavity, the energy storage assembly is received in the receiving cavity, and the shell component is arranged on the peripheral side of the body;

[0011] Among them, the heat dissipation component includes a first heat dissipation component and a second heat dissipation component, the first heat dissipation component is located between the main body and the shell component and is arranged corresponding to the accommodating cavity, at least part of the circuit board assembly is fixed to the side of the first heat dissipation component away from the main body; the second heat dissipation component is connected to the first heat dissipation component, and at least part of the second heat dissipation component is exposed from the shell component, and the first heat dissipation component and the second heat dissipation component are both metal heat dissipation components.

[0012] In this embodiment, after the energy storage component is accommodated in the receiving cavity formed by the body, a heat sink made of metal is fixed to the body to make the structure of the portable energy storage device more solid. At the same time, at least part of the circuit board component is fixed to the heat sink to achieve reliable fixation of the circuit board component, and the shell component is arranged on the peripheral side of the body to effectively protect the body and the energy storage component accommodated in the body. Furthermore, at least part of the heat sink is exposed to the shell component, and the heat sink exposed to the shell component is in contact with the air or forms convection with the air to timely conduct away the heat emitted by the energy storage component accommodated in the receiving cavity of the body, thereby effectively improving the heat dissipation effect of the portable energy storage device, and further improving the service life of the portable energy storage device.

[0013] In some embodiments, the receiving cavity includes a first cavity portion having a first opening and a second cavity portion having a second opening;

[0014] The energy storage assembly includes a first battery assembly and a second battery assembly, the first battery assembly is accommodated in the first cavity portion, and the second battery assembly is accommodated in the second cavity portion;

[0015] The first heat sink is connected to the body and is at least disposed corresponding to the first cavity portion and covers the first opening.

[0016] In this embodiment, the heat sink is arranged corresponding to the opening of the cavity portion for storing the battery assembly, which can not only cover the opening of the cavity portion to cooperate with the main body to more firmly store the battery assembly, but also can better conduct the heat generated by the battery assembly in the cavity portion in time, thereby effectively improving the heat dissipation effect of the portable energy storage device.

[0017] In some embodiments, the body is provided with a first clamping portion at the first opening, the first heat sink is provided with a second clamping portion adapted to the first clamping portion, and the first heat sink is clamped and adapted to the first clamping portion through the second clamping portion.

[0018] In this embodiment, the heat sink and the body are detachably connected by snap-fitting, thereby facilitating efficient assembly of the heat sink and the body.

[0019] In some embodiments, the second heat dissipation element includes a first heat dissipation portion and a second heat dissipation portion connected to the first heat dissipation element, and the first heat dissipation portion and the second heat dissipation portion are respectively disposed on at least two different sides of the body.

[0020] In this embodiment, the two heat dissipation parts of the second heat dissipation element are respectively arranged on at least two different sides of the body to increase the probability of the heat dissipation element forming convection with the air at different angles, thereby providing a better heat dissipation effect for the energy storage component in the body.

[0021] In some embodiments, the circuit board assembly includes a first circuit board and a second circuit board electrically connected to the energy storage assembly, and the first circuit board is fixed to a side of the first heat sink away from the body.

[0022] In this embodiment, the circuit board assembly includes two separately arranged circuit boards, so that when one of the circuit boards fails, only the failed circuit board needs to be replaced, which can effectively save the maintenance cost of the circuit board assembly.

[0023] In some embodiments, the first circuit board includes a substrate disposed on a side of the first heat sink away from the body and detachably connected to the first heat sink, a control component disposed on the substrate, a plurality of LED lamp beads electrically connected to the control component, and a display module.

[0024] In this embodiment, by arranging LED lamp beads and a display module on the circuit board, information can be output in at least two different information output modes, thereby achieving at least two different information prompting effects.

[0025] In some embodiments, the circuit board assembly further includes a light guide assembly arranged corresponding to the LED lamp bead, and the light guide assembly is clamped between the substrate and the first heat sink.

[0026] In this embodiment, by setting up a light guide component, the light guide component can be used to atomize and filter the output light of the LED lamp beads, thereby avoiding the glare of the light emitted by the LED lamp beads, and the light guide component is clamped between the substrate and the first heat sink, so that the first heat sink can be used more efficiently to conduct away the heat generated by the LED lamp beads when they are working.

[0027] In some embodiments, the shell component includes a first shell, a second shell and a connecting piece, the connecting piece is detachably connected to the main body, and the first shell and the second shell are snap-fitted with the connecting piece; after the first shell and the second shell are snap-fitted with the connecting piece, the heat dissipation component and the shell component form a shell cover structure surrounding the main body, and the circuit board assembly is accommodated in the shell cover space formed by the shell cover structure.

[0028] In this embodiment, the first shell and the second shell are connected by a connecting piece. During the assembly process, the connecting piece can be first installed on the main body, and then the first shell and the second shell can be matched and installed with the connecting piece, thereby achieving efficient assembly of the portable energy storage device. Moreover, after the first shell and the second shell are snap-fitted with the connecting piece, the heat dissipation component and the shell component form a shell cover structure surrounded by the main body, thereby effectively protecting the main body and the energy storage component arranged in the main body in the circumferential direction.

[0029] In some embodiments, the first shell is provided with a first clip-on portion, the second shell is provided with a second clip-on portion, and the connecting member is provided with a first connecting portion detachably connected to the main body, a third clip-on portion clip-fitted with the first clip-on portion, and a fourth clip-on portion clip-fitted with the second clip-on portion; wherein at least one of the first clip-on portion and the third clip-on portion is an elastic clip-on portion, and / or at least one of the second clip-on portion and the fourth clip-on portion is an elastic clip-on portion.

[0030] In this embodiment, the connector and the housing are elastically snap-fitted to achieve efficient assembly of the portable energy storage device.

[0031] In some embodiments, at least one of the first shell and the second shell is provided with a transparent window, and the transparent window is provided corresponding to the circuit board assembly; and / or the shell component also includes a fastener, which is sleeved on the circumferential side of the first shell and the second shell and is detachably connected to the first shell and the second shell.

[0032] In this embodiment, by providing a transparent window corresponding to the circuit board assembly, the user can see through the transparent window whether some components of the circuit board assembly have any abnormalities during operation, thereby improving the efficiency of handling abnormal conditions of the circuit board assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0034] Figure 1 A schematic diagram of the block diagram of a portable energy storage device provided in an embodiment of the utility model;

[0035] Figure 2 It is a schematic diagram of the structural adaptation relationship between the heat dissipation component and the body and circuit components in the portable energy storage device provided by the embodiment of the utility model;

[0036] Figure 3 It is a schematic diagram of the structural adaptation relationship between the shell component and the body of the portable energy storage device provided by the embodiment of the utility model;

[0037] Figure 4 It is a schematic diagram of the overall explosion structure of the portable energy storage device provided by the embodiment of the utility model;

[0038] Figure 5It is a partial structural exploded schematic diagram of a portable energy storage device provided in an embodiment of the utility model. DETAILED DESCRIPTION

[0039] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0040] The flowcharts shown in the accompanying drawings are only examples and do not necessarily include all the contents and operations / steps, nor must they be executed in the order described. For example, some operations / steps may also be decomposed, combined or partially merged, so the actual execution order may change according to actual conditions.

[0041] It should be understood that the terms used in this utility model specification are only for the purpose of describing specific embodiments and are not intended to limit the utility model. As used in this utility model specification and the appended claims, unless the context clearly indicates otherwise, the singular forms "a", "an" and "the" are intended to include plural forms.

[0042] It should also be understood that the term “and / or” used in the present specification and the appended claims refers to any combination and all possible combinations of one or more of the associated listed items, and includes these combinations.

[0043] A portable energy storage device is a device that can be carried around and can store electrical energy. Typically, a portable energy storage device is used to charge consumer electronic products such as handheld mobile devices (eg, mobile phones, tablets).

[0044] In the related art, most portable energy storage devices adopt a sealed plastic shell structure design. With the development of technology and the popularization of high-power fast charging technology, it is required that the portable energy storage device can store more electricity and can input and / or output large currents. However, the demand for large electricity and high current increases the number of energy storage components carried by the portable energy storage device, increases the volume and increases the heat generation during operation. If the structural firmness and heat dissipation performance of the portable energy storage device are not good, it will affect the service life of the portable energy storage device.

[0045] Based on this, the utility model provides a portable energy storage device, which includes an energy storage component, a circuit board component and a shell component, the energy storage component is used to store electrical energy; the circuit board component is electrically connected to the energy storage component; the shell component includes a main body, a shell component and a heat dissipation component; wherein the main body is formed with a receiving cavity, the energy storage component is received in the receiving cavity, and the shell component is arranged on the peripheral side of the main body; the heat dissipation component includes a first heat sink and a second heat sink, the first heat sink is located between the main body and the shell component and is arranged corresponding to the receiving cavity, at least part of the circuit board assembly is fixed to a side of the first heat sink away from the main body; the second heat sink is connected to the first heat sink, and at least part of the second heat sink is exposed to the shell component, and the first heat sink and the second heat sink are both metal heat sinks.

[0046] The portable energy storage device is constructed by accommodating the energy storage component in the receiving cavity formed by the body, and fixing a heat sink made of metal material on the body to make the portable energy storage device structure more solid. At the same time, at least part of the circuit board component is fixed to the heat sink to achieve reliable fixation of the circuit board component, and the shell component is arranged on the peripheral side of the body to effectively protect the body and the energy storage component accommodated in the body. Furthermore, at least part of the heat sink is exposed to the shell component, and the heat sink exposed to the shell component is in contact with the air or forms convection with the air to timely conduct away the heat emitted by the energy storage component accommodated in the receiving cavity of the body, thereby effectively improving the heat dissipation effect of the portable energy storage device, and further improving the service life of the portable energy storage device.

[0047] Some implementation modes of the present invention are described in detail below in conjunction with the accompanying drawings. In the absence of conflict, the following embodiments and features in the embodiments may be combined with each other.

[0048] See also Figure 1 , Figure 1 A schematic diagram of the block structure of a portable energy storage device provided in an embodiment of the utility model.

[0049] like Figure 1 As shown, the portable energy storage device 100 includes an energy storage component 10, a circuit board component 20 and a housing component 30. The energy storage component 10 is used to store electrical energy, and the circuit board component 20 is electrically connected to the energy storage component 10 and is at least used to control the energy storage component 10 to perform charging or discharging operations. The housing component 30 forms a shell space for accommodating the energy storage component 10 and the circuit board component 20 to effectively protect the energy storage component 10 and the circuit board component 20.

[0050] See also Figure 2The housing assembly 30 includes a body 31, a housing component 32 and a heat dissipation component 33. The body 31 is formed with a receiving cavity, and the energy storage component 10 is received in the receiving cavity. The heat dissipation component 33 is at least used to dissipate heat for the energy storage component 10 received in the body 31, and is also connected to the body 31, and is also used to provide a rigid support for the body 31, so that the structure of the portable energy storage device is more solid. The housing component 32 is arranged on the peripheral side of the body 31, and is used to provide better protection for the body 31 on the peripheral side.

[0051] It can be understood that the receiving cavity formed by the main body 31 for receiving the energy storage assembly 10 can be one or more, and there is no limitation here.

[0052] like Figure 2 As shown, in some embodiments, the receiving cavity formed by the body 31 includes a first cavity portion 311 having a first opening and a second cavity portion 312 having a second opening. The heat dissipation component 33 is arranged at least in correspondence with a portion of the opening of the receiving cavity, so as to better conduct the heat generated by the energy storage component 10 during operation away from the receiving cavity, thereby providing a better heat dissipation effect for the energy storage component 10. For example, the energy storage component 10 includes a first battery component 101 and a second battery component 102, wherein the first battery component 101 is arranged in the first cavity portion 311, and the second battery component 102 is arranged in the second cavity portion 312, and the heat dissipation component 33 is arranged at least in correspondence with the first opening of the first cavity portion 311 and covers the first opening. Alternatively, the heat dissipation component 33 is arranged at least in correspondence with the second opening of the second cavity portion 312, and covers the second opening.

[0053] like Figure 2 As shown, in some embodiments, the heat dissipation component 33 includes a first heat dissipation component 331 and a second heat dissipation component 332. The first heat dissipation component 331 is located between the main body 31 and the shell component 32 and is arranged corresponding to the accommodating cavity. At least part of the circuit board assembly 20 is fixed to the side of the first heat dissipation component away from the main body; the second heat dissipation component 332 is connected to the first heat dissipation component 331, and at least part of the second heat dissipation component 332 is exposed from the shell component 32. The first heat dissipation component 331 and the second heat dissipation component 332 are both metal heat dissipation components.

[0054] It can be understood that the first heat sink 331 can be arranged corresponding to the receiving cavity in such a way that the first heat sink 331 is arranged on at least one side outside the receiving cavity, or the first heat sink 331 is at least partially arranged in the receiving cavity, which is not limited here.

[0055] For example, the first heat sink 331 is connected to the body 31 and is at least arranged corresponding to the first cavity portion 311 and covers the first opening, so that the heat generated by the first battery assembly 101 during operation can be conducted to the first heat sink 331 at a short distance and discharged through the first heat sink 331 and the second heat sink 332. At the same time, the heat generated by the second battery assembly 102 during operation can also be conducted to the first heat sink 331 and discharged through the first heat sink 331 and the second heat sink 332.

[0056] It can be understood that the metal heat sink can be a pure metal heat sink or an alloy heat sink. For example, the metal heat sink includes but is not limited to gold, silver, copper, iron, aluminum and other metal heat sinks. For another example, the metal heat sink includes but is not limited to aluminum alloy, copper alloy, magnesium alloy and other alloy heat sinks.

[0057] In this embodiment, after the portable energy storage device 100 accommodates the energy storage component 10 in the receiving cavity formed by the body 31, the first heat sink 331 made of metal is fixed on the body 31 to make the structure of the portable energy storage device more solid. At the same time, at least part of the circuit board component 20 is fixed on the first heat sink 331 to achieve reliable fixation of the circuit board component 20, and the shell component 32 is arranged on the peripheral side of the body 31 to effectively protect the body 31 and the energy storage component 10 accommodated in the body 31. Furthermore, at least part of the second heat sink 332 is exposed to the shell component 32, and the second heat sink 332 exposed to the shell component 32 is in contact with the air or forms convection with the air to timely conduct away the heat emitted by the energy storage component 10 accommodated in the receiving cavity of the body 31, thereby effectively improving the heat dissipation effect of the portable energy storage device 100, and further improving the service life of the portable energy storage device 100.

[0058] Optionally, the first heat sink 331 is connected to the body 31 in such a manner that the body 31 is provided with a first clamping portion 3111 at the first opening, the first heat sink 331 is provided with a second clamping portion 3311 adapted to the first clamping portion, and the first heat sink 331 is clamped and adapted to the first clamping portion 3111 through the second clamping portion 3311. The first clamping portion 3111 may be a slot or a buckle, and the second clamping portion 3311 may be a buckle adapted to the slot, or a slot adapted to the buckle. The detachable connection between the first heat sink 331 and the body 31 is achieved by clamping and adapting, thereby facilitating efficient assembly between the first heat sink 331 and the body 31.

[0059] It is understandable that the first heat sink 331 and the body 31 can also be connected by screws. For example, a threaded hole is set in the body 31, a through hole or a threaded hole is set in the heat sink 311, and screws are used to pass through the threaded holes on the first heat sink 331 and threadedly connect them to the body 31.

[0060] like Figure 2 As shown, in some embodiments, the second heat dissipation member 332 includes a first heat dissipation portion 3321 and a second heat dissipation portion 3322 connected to the first heat dissipation member 331, and the first heat dissipation portion 3321 and the second heat dissipation portion 3322 are respectively disposed on at least two different sides of the body 31. For example, the first heat dissipation portion 3321 and the second heat dissipation portion 3322 are respectively disposed on opposite sides of the body 31, or the first heat dissipation portion 3321 and the second heat dissipation portion 3322 are respectively disposed on adjacent sides of the body 31.

[0061] It can be understood that the first heat dissipation part 3321 and the second heat dissipation part 3322 can be separately arranged or integrally arranged, and there is no limitation on this. It is only necessary that the first heat dissipation part 3321 and the second heat dissipation part 3322 are respectively arranged on at least two different sides of the main body 31, so that convection can be formed with the air on two different sides of the main body to increase the heat dissipation effect of the heat dissipation component 33.

[0062] like Figure 2 As shown, in some embodiments, the circuit board assembly 20 includes a first circuit board 201 and a second circuit board 202 electrically connected to the energy storage assembly 10, and the first circuit board 201 is fixed to a side of the first heat sink 331 away from the body 31. For example, the first circuit board 201 and / or the second circuit board 202 are provided with a charging interface and a discharging interface, and the external power source charges the energy storage assembly 10 through the charging interface, and the energy storage assembly 10 can perform a discharging operation through the discharging interface to charge the external electronic device.

[0063] In this embodiment, the circuit board assembly 20 includes two separately arranged circuit boards, so that when one of the circuit boards fails, only the failed circuit board needs to be replaced, which can effectively save the maintenance cost of the circuit board assembly 20. In addition, the first circuit board 201 of the circuit board assembly 20 is fixed on the first heat sink 331, and the first circuit board is fixed by using a metal heat sink, which is not only conducive to the fixation of the first circuit board 201, but also conducive to the heat dissipation of the first circuit board 201.

[0064] Optionally, the first circuit board 201 includes a substrate 2011 disposed on a side of the first heat sink 331 away from the body 31 and detachably connected to the first heat sink 331, a control component 2012 disposed on the substrate 2011, a plurality of LED lamp beads (not shown) electrically connected to the control component 2012, and a display module 2013. The control component 2012 includes at least a voltage conversion circuit, which is electrically connected to a charging interface and a discharging interface disposed on the first circuit board 201 and / or the second circuit board 202, and is used to perform a voltage conversion operation to enable the energy storage component 10 to perform corresponding charging and discharging operations.

[0065] The LED lamp beads and the display module 2013 are used to output prompt information, which includes but is not limited to the power information of the energy storage component 10, the charging voltage information corresponding to the charging operation of the energy storage component 10, the discharge voltage information corresponding to the discharge operation of the energy storage component 10, and the charging time required for the energy storage component 10 to be fully charged. In this embodiment, by arranging the LED lamp beads and the display module 2013 on the circuit board, information output can be performed in at least two different information output modes, thereby achieving at least two different information prompt effects.

[0066] Optionally, the circuit board assembly 20 further includes a light guide assembly 203 provided corresponding to the LED lamp beads, and the light guide assembly 203 is clamped between the substrate 2011 and the first heat sink 331. By providing the light guide assembly 203, the light guide assembly 203 can be used to atomize and filter the light emitted by the LED lamp beads, thereby avoiding the glare of the light emitted by the LED lamp beads, and the light guide assembly 203 is clamped between the substrate 2011 and the first heat sink 331, so that the first heat sink 331 can be used more efficiently to conduct away the heat generated by the LED lamp beads when they are working.

[0067] Optionally, the second circuit board 202 includes a substrate, a control component disposed on the substrate, and an interface component, wherein the interface component includes at least one of a charging interface and a discharging interface. The control component at least includes a voltage conversion circuit.

[0068] See also Figures 3 to 5 In some embodiments, the shell component 32 includes a first shell 321, a second shell 322 and a connecting piece 323, the connecting piece 323 is detachably connected to the body 31, and the first shell 321 and the second shell 322 are snap-fitted with the connecting piece 323; and after the first shell 321 and the second shell 322 are snap-fitted with the connecting piece 323, the heat dissipation component 33 and the shell component 32 form a shell cover structure surrounding the body 31, and the circuit board assembly 20 is accommodated in the shell cover space formed by the shell cover structure.

[0069] Exemplarily, the first shell 321 is provided with a first clamping portion 3213, the second shell 322 is provided with a second clamping portion 3223, and the connecting member 323 is provided with a first connecting portion 3231 detachably connected to the main body 31, a third clamping portion 3232 clamped and adapted to the first clamping portion 3213, and a fourth clamping portion 3233 clamped and adapted to the second clamping portion 3223; wherein, at least one of the first clamping portion 3213 and the third clamping portion 3223 is an elastic clamping portion, and / or, at least one of the second clamping portion 3223 and the fourth clamping portion 3233 is an elastic clamping portion.

[0070] In this embodiment, the first shell 321 and the second shell 322 are connected by the connector 323. During the assembly process, the connector 323 can be first installed on the body 31, and then the first shell 321 and the second shell 322 are adapted and installed with the connector 323, so as to achieve efficient assembly of the portable energy storage device 100. Moreover, after the first shell 321 and the second shell 322 are snap-fitted with the connector 323, the heat dissipation component 33 and the shell component 32 form a shell cover structure surrounding the body 31, so as to effectively protect the body 31 and the energy storage assembly 10 disposed in the body 31 in the circumferential direction. Further, the connector 323 and the first shell 321 and the second shell 322 are elastically snap-fitted to achieve efficient assembly of the portable energy storage device 100.

[0071] like Figure 3 As shown, in some embodiments, the shell component 32 also includes a fastener 324, which is sleeved on the circumferential side of the first shell 321 and the second shell 322, and is detachably connected to the first shell 321 and the second shell 322. After the first shell 321 and the second shell 322 are connected by the connecting piece 323, the fastener 324 is sleeved on one end or two opposite ends of the first shell 321 and the second shell 322 to further fasten the shell component 32 so that the shell component 32 can provide more solid structural protection for the main body 31.

[0072] It can be understood that the fastener 324 can be one or more, and the manner in which the fastener 324 is detachably connected to the first shell 321 and the second shell 322 includes but is not limited to structural engagement, threaded connection, interference fit, etc.

[0073] For example, a first snap-fitting structure is provided in the first shell 321 and the second shell 322, and a second snap-fitting structure for adapting to the first snap-fitting structure is provided in the fastener 324. After the first shell 321 and the second shell 322 are connected by the connecting member 323, the fastener 324 is sleeved on the circumferential side of the first shell 321 and the second shell 322, and is snap-fitted with the first snap-fitting structure through the second snap-fitting structure.

[0074] In some embodiments, at least one of the first housing 321 and the second housing 322 is provided with a transparent window 324, and the transparent window 324 is provided corresponding to the circuit board assembly 20. In this embodiment, by providing the transparent window 324 corresponding to the circuit board assembly 20, the user can see through the transparent window 324 whether some components of the circuit board assembly 20 are abnormal during operation, so as to improve the efficiency of handling abnormal conditions of the circuit board assembly 20.

[0075] It can be understood that the clear window portion 325 can be a part of the first shell 321 and / or the second shell 322, or can be independently arranged corresponding to the first shell 321 and the second shell 322, and fixed to at least one of the first shell 321 and the second shell 322 by means of gluing, structural snap-fitting, threaded connection, etc., and there is no limitation here.

[0076] like Figure 4 and Figure 5 As shown, after the portable energy storage device 100 accommodates the energy storage component 10 in the accommodating cavity formed by the body 31, a first heat sink 331 made of metal is fixed on the body 31 to make the structure of the portable energy storage device more solid. At the same time, at least a part of the circuit board component 20 is fixed on the first heat sink 331 to achieve reliable fixation of the circuit board component 20, and the shell component 32 is arranged on the peripheral side of the body 31 to effectively protect the body 31 and the energy storage component 10 accommodated in the body 31.

[0077] Furthermore, at least a portion of the second heat sink 332 is exposed outside the shell component 32 , and the second heat sink 332 exposed outside the shell component 32 is in contact with the air or forms convection with the air to timely conduct away the heat emitted by the energy storage component 10 accommodated in the accommodating cavity of the main body 31 , thereby effectively improving the heat dissipation effect of the portable energy storage device 100 , and further improving the service life of the portable energy storage device 100 .

[0078] Furthermore, the circuit board assembly 20 includes two separately arranged circuit boards, so that when one of the circuit boards fails, only the failed circuit board needs to be replaced, which can effectively save the maintenance cost of the circuit board assembly.

[0079] Furthermore, the first shell 321 and the second shell 322 of the shell component 32 are connected by the connecting piece 323. During the assembly process, the connecting piece 323 can be first installed on the main body 31, and then the first shell 321 and the second shell 322 are adapted and installed with the connecting piece 323, so as to achieve efficient assembly of the portable energy storage device 100. Moreover, after the first shell 321 and the second shell 322 are snap-fitted and adapted with the connecting piece 323, the heat dissipation component 33 and the shell component 32 form a shell cover structure surrounding the main body 31, so as to effectively protect the main body 31 and the energy storage component 10 arranged in the main body 31 in the circumferential direction.

[0080] In the description of the present utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection. It can be a mechanical connection or an electrical connection. It can be directly connected or indirectly connected through an intermediate medium. It can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0081] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0082] The disclosure above provides many different embodiments or examples for realizing different structures of the utility model. In order to simplify the disclosure of the utility model, the components and settings of specific examples are described above. Of course, they are only examples, and the purpose is not to limit the utility model. In addition, the utility model can repeat reference numbers and / or reference letters in different examples, and this repetition is for the purpose of simplification and clarity, and does not indicate the relationship between the various embodiments and / or settings discussed in itself. In addition, the utility model provides various specific examples of processes and materials, but those of ordinary skill in the art can be aware of the application of other processes and / or the use of other materials.

[0083] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with the embodiments or examples are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

Claims

1. A portable energy storage device, characterized in that: include: Energy storage components for storing electrical energy; A circuit board assembly, the circuit board assembly being electrically connected to the energy storage assembly; and A housing assembly, the housing assembly comprising a body, a housing component and a heat dissipation component; The body is formed with a receiving cavity, the energy storage assembly is received in the receiving cavity, and the shell component is arranged on the peripheral side of the body; Among them, the heat dissipation component includes a first heat dissipation component and a second heat dissipation component, the first heat dissipation component is located between the main body and the shell component and is arranged corresponding to the accommodating cavity, at least part of the circuit board assembly is fixed to the side of the first heat dissipation component away from the main body; the second heat dissipation component is connected to the first heat dissipation component, and at least part of the second heat dissipation component is exposed from the shell component, and the first heat dissipation component and the second heat dissipation component are both metal heat dissipation components.

2. The portable energy storage device according to claim 1, characterized in that: The receiving cavity comprises a first cavity portion having a first opening and a second cavity portion having a second opening; The energy storage assembly includes a first battery assembly and a second battery assembly, the first battery assembly is accommodated in the first cavity portion, and the second battery assembly is accommodated in the second cavity portion; The first heat sink is connected to the body and is at least disposed corresponding to the first cavity portion and covers the first opening.

3. The portable energy storage device according to claim 2, characterized in that: The main body is provided with a first clamping portion at the first opening, the first heat sink is provided with a second clamping portion adapted to the first clamping portion, and the first heat sink is clamped and adapted to the first clamping portion through the second clamping portion.

4. The portable energy storage device according to claim 1, characterized in that: The second heat sink includes a first heat sink and a second heat sink connected to the first heat sink, and the first heat sink and the second heat sink are respectively disposed on at least two different sides of the body.

5. The portable energy storage device according to claim 1, characterized in that: The circuit board assembly includes a first circuit board and a second circuit board electrically connected to the energy storage assembly, and the first circuit board is fixed to a side of the first heat sink away from the body.

6. The portable energy storage device according to claim 5, characterized in that: The first circuit board includes a substrate disposed on a side of the first heat sink away from the body and detachably connected to the first heat sink, a control component disposed on the substrate, a plurality of LED lamp beads electrically connected to the control component, and a display module.

7. The portable energy storage device according to claim 6, characterized in that: The circuit board assembly also includes a light guide assembly arranged corresponding to the LED lamp bead, and the light guide assembly is clamped between the substrate and the first heat sink.

8. The portable energy storage device according to any one of claims 1 to 7, characterized in that: The housing component comprises a first housing, a second housing and a connecting piece, wherein the connecting piece is detachably connected to the body, and the first housing and the second housing are snap-fitted with the connecting piece; After the first shell and the second shell are snap-fitted with the connector, the heat dissipation component and the shell component form a shell cover structure surrounding the body, and the circuit board assembly is accommodated in a shell cover space formed by the shell cover structure.

9. The portable energy storage device according to claim 8, characterized in that: The first shell is provided with a first clamping portion, the second shell is provided with a second clamping portion, and the connecting member is provided with a first connecting portion detachably connected to the body, a third clamping portion clamped and matched with the first clamping portion, and a fourth clamping portion clamped and matched with the second clamping portion; Wherein, at least one of the first clamping portion and the third clamping portion is an elastic clamping portion, and / or at least one of the second clamping portion and the fourth clamping portion is an elastic clamping portion.

10. The portable energy storage device according to claim 8, characterized in that: At least one of the first shell and the second shell is provided with a transparent window, and the transparent window is provided corresponding to the circuit board assembly; And / or, the shell component further includes a fastener, which is sleeved on the circumference of the first shell and the second shell and is detachably connected to the first shell and the second shell.

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