CN217823071U

CN217823071U - Battery pack and power supply device

Info

Publication number: CN217823071U
Application number: CN202221162198.XU
Authority: CN
Inventors: 陈熙; 张宏韬
Original assignee: Ecoflow Technology Ltd
Current assignee: Ecoflow Technology Ltd
Priority date: 2022-05-13
Filing date: 2022-05-13
Publication date: 2022-11-15
Anticipated expiration: 2032-05-13

Abstract

The application relates to the technical field of energy storage power supplies, and provides a battery pack and power supply equipment, wherein a support structure is arranged between a first assembly surface of a battery module and a circuit board, the support structure is abutted against the first assembly surface and the circuit board, the position of the support structure corresponds to a heating device, and the heating device can be supported by the support structure; the first supporting part and the second supporting part of the supporting structure are arranged oppositely and at intervals, a heat dissipation channel is formed between the first supporting part and the second supporting part, an air inlet of the heat dissipation channel faces the air cooling device of the power supply equipment, so that air flow of the air cooling device enters the heat dissipation channel, the heating device is arranged above the heat dissipation channel in a hanging mode, and heat can be dissipated out quickly through the heat dissipation channel. The supporting structure ensures good heat dissipation of the heating device on one hand, and gives certain support to the heating device on the other hand, so that the condition that the circuit board is damaged in the assembly process of the heating device can be effectively avoided.

Description

Battery pack and power supply device

Technical Field

The application relates to the technical field of energy storage power supplies, in particular to a battery pack and power supply equipment.

Background

A battery pack for an energy storage power supply generally includes a battery module and a circuit board fixed to the battery module. The circuit board is often provided with the device that generates heat such as the conductive post that is used for power output, and in the use of circuit board, because the electric current that leads the electric current of leading the electric pole and passing through is higher, makes it generate heat very easily and the temperature is very high, consequently leads and generally adopts the design of keeping away the sky between electric pole and the battery module to avoid leading the temperature of electric pole to influence the battery module, also be convenient for simultaneously lead the heat dissipation of electric pole.

However, in the using process of the conductive column, the conductive column needs to be electrically connected with other components in a manner of being installed in cooperation with the screw, and in the process of locking the screw, the conductive column can be subjected to a certain extrusion force, and the extrusion force is directly transmitted to the circuit board, so that the part of the circuit board where the conductive column is arranged is easily deformed or broken by extrusion.

SUMMERY OF THE UTILITY MODEL

An object of the embodiment of the application is to provide a battery pack and power supply equipment, can give and lead a certain support of electrical pillar under the radiating circumstances of electrical pillar not influenced to avoid the damage of circuit board.

In order to achieve the purpose, the technical scheme adopted by the application is as follows: provided is a battery pack applied to a power supply device, including:

the battery module is provided with a first assembling surface;

the circuit board is arranged on the first assembling surface and is provided with a heating device;

the supporting structure is arranged between the first assembling surface and the circuit board and is abutted against the first assembling surface and the circuit board, and the position of the supporting structure corresponds to the heating device;

the supporting structure comprises a first supporting part and a second supporting part which are arranged oppositely and at intervals, a heat dissipation channel and an air inlet and an air outlet which are communicated with the heat dissipation channel are formed between the first supporting part and the second supporting part, the air inlet is configured to face the air cooling device of the power supply equipment, and the projection of the heating device in the direction perpendicular to the circuit board is located in the range of the heat dissipation channel.

Optionally, the heating device includes that it leads electrical pillar to generate heat, first supporting part with the second supporting part is the arc backup pad, two the arc backup pad is the annular distribution.

Optionally, a pad is disposed on one side of the circuit board facing the battery module, the pad is used for being connected to the conductive post in a welding manner, and the first supporting portion and the second supporting portion are disposed near the edge of the pad.

Optionally, the extending direction of the heat dissipation channel is configured to be parallel to the airflow direction of the air cooling device.

Optionally, the circuit board has connecting terminal, the battery package still includes elastic conducting strip and connecting piece, elastic conducting strip include first sub-conducting strip and with the second sub-conducting strip that first sub-conducting strip is connected, first sub-conducting strip with connecting terminal interval sets up, second sub-conducting strip with the output electricity of battery module is connected, the connecting piece connect in first sub-conducting strip with connecting terminal, the connecting piece be configured as can to first sub-conducting strip applys the effort, so that first sub-conducting strip with connecting terminal contacts.

Optionally, the battery module has a second assembly surface intersecting with the first assembly surface, the battery pack further includes a buckle structure, the buckle structure includes a first buckle disposed on the first assembly surface and a second buckle disposed on the second assembly surface, the first buckle is used for fixing the first sub-conductive sheet, and the second buckle is used for fixing the second sub-conductive sheet.

Optionally, the first buckle includes a connecting rod arranged on the first assembly surface and a hook connected with the connecting rod, the number of the first buckle is two, the distance between the connecting rods of the first buckle is greater than or equal to the width of the first sub conducting strip, the distance between the hooks of the first buckle is smaller than the width of the first sub conducting strip, the hook has a first guide surface and a second guide surface which are deviated from each other, the first guide surface is used for being in sliding fit with the first sub conducting strip to guide the first sub conducting strip to fall into the first buckle, and the second guide surface is used for being in sliding fit with the first sub conducting strip to guide the first sub conducting strip to be separated from the first buckle.

Optionally, the battery package still includes insulating piece and overhead structure, overhead structure locates the second fitting surface, the insulating piece cover in overhead structure is last, and with be formed with the separation clearance between the second fitting surface, the sub-conducting strip of second is located the insulating piece with between the second fitting surface.

Optionally, the battery pack further comprises a frame body, the frame body surrounds the periphery of the insulating sheet, at least one corner of the insulating sheet is provided with a notch, and a notch is formed between the notch and the frame body.

The application also provides power supply equipment, including shell, air cooling device and as above the battery package, the battery package with the air cooling device set up in the shell, the air intake orientation of the heat dissipation channel of battery package the air cooling device.

The battery pack provided by the application at least has the following beneficial effects: the battery pack comprises a battery module and a circuit board, wherein the circuit board is arranged on a first assembly surface of the battery module, a supporting structure is arranged between the first assembly surface of the battery module and the circuit board, the supporting structure is abutted against the first assembly surface and the circuit board, and the position of the supporting structure corresponds to that of a heating device, so that the heating device on the circuit board can be supported by the supporting structure; the first supporting part and the second supporting part of the supporting structure are arranged oppositely and at intervals, a heat dissipation channel is formed between the first supporting part and the second supporting part, an air inlet of the heat dissipation channel is configured to be an air cooling device facing the power supply equipment, so that air flow of the air cooling device enters the heat dissipation channel, the projection of the heating device along the direction perpendicular to the circuit board is located in the range of the heat dissipation channel, the heating device is suspended above the heat dissipation channel, and heat of the heating device can be dissipated rapidly through the heat dissipation channel. The supporting structure ensures good heat dissipation of the heating device on one hand, and gives certain support to the heating device on the other hand, so that the condition that the circuit board is damaged in the assembly process of the heating device can be effectively avoided.

The power supply equipment provided by the application has at least the following beneficial effects: the power supply equipment comprises the battery pack, the air cooling device and the shell, wherein the battery pack comprises a battery module and a circuit board, the circuit board is arranged on a first assembling surface of the battery module, a supporting structure is arranged between the first assembling surface of the battery module and the circuit board, the supporting structure is abutted against the first assembling surface and the circuit board, and the position of the supporting structure corresponds to that of the heating device, so that the heating device on the circuit board can be supported through the supporting structure; the first supporting part and the second supporting part of the supporting structure are arranged oppositely and at intervals, a heat dissipation channel is formed between the first supporting part and the second supporting part, an air inlet of the heat dissipation channel faces the air cooling device of the power supply device, so that air flow of the air cooling device enters the heat dissipation channel, the projection of the heating device along the direction perpendicular to the circuit board is located in the range of the heat dissipation channel, the heating device is suspended above the heat dissipation channel, and heat can be quickly dissipated through the heat dissipation channel. The supporting structure ensures good heat dissipation of the heating device on one hand, and gives certain support to the heating device on the other hand, so that the condition that the circuit board is damaged in the assembly process of the heating device can be effectively avoided.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required to be used in the embodiments or the prior art description will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings may be obtained according to these drawings without inventive labor.

Fig. 1 is a schematic overall structure diagram of a power supply device provided in an embodiment of the present application;

FIG. 2 is an exploded view of FIG. 1;

fig. 3 is a schematic overall structure diagram of a battery pack according to an embodiment of the present application;

fig. 4 is a schematic structural view of the battery module in fig. 3;

FIG. 5 is a partially enlarged schematic view of FIG. 4;

fig. 6 is a schematic diagram of a disassembled structure of a battery pack according to an embodiment of the present application;

fig. 7 is a schematic view of an overall structure of a battery pack according to another embodiment of the present application;

FIG. 8 is an enlarged partial schematic view of FIG. 7;

fig. 9 is a schematic structural view of the battery module in fig. 7;

FIG. 10 is an enlarged partial schematic view of FIG. 9;

fig. 11 is a schematic view illustrating an overall structure of a battery pack according to still another embodiment of the present application;

fig. 12 is a partially enlarged schematic view of fig. 11.

Wherein, in the figures, the respective reference numerals:

100. power supply device 10, battery pack 20, and case

11. Battery module 12, circuit board 13, elastic conducting strip

14. Connecting piece 15, buckle structure 16 and positioning column

17. Insulating sheet 21, air cooling device 111 and battery cell support

112. Battery cell 113, first assembly surface 114 and second assembly surface

115. Support structure 116, overhead structure 117, and frame body

121. Conductive post 122, pad 123, and connection terminal

131. First sub-conducting strip 132, second sub-conducting strip 151 and first buckle

152. Second clip 171, notch 172, notch

1151. First support 1152, second support 1153, heat dissipation channel

1154. Air intake 1155, air outlet 1511, connecting rod

1512. Hook 15121, first guide surface 15122, second guide surface

1161. Region of cavity

Detailed Description

In order to make the technical problems, technical solutions and advantageous effects to be solved by the present application clearer, the present application is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present application and are not intended to limit the present application.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.

It will be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like, as used herein, refer to an orientation or positional relationship indicated in the drawings that is solely for the purpose of facilitating the description and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be considered as limiting the present application.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise.

The circuit board of the energy storage power supply is often provided with heating devices such as the conductive columns for power output, and in the use process of the circuit board, because the current passing through the conductive columns is high, the conductive columns are very easy to heat and the temperature is very high, so that the conductive columns and the battery module are generally designed to avoid the influence of the temperature of the conductive columns on the battery module, and meanwhile, the conductive columns are convenient to dissipate heat. However, in the using process of the conductive column, the conductive column needs to be electrically connected with other components in a manner of being installed in a manner of being matched with a screw, and in the process of locking the screw, the conductive column may receive a certain extrusion force, and the extrusion force is directly transmitted to the circuit board, so that the portion of the circuit board where the conductive column is disposed is easily deformed or broken by extrusion. Therefore, the embodiment of the application provides a battery pack, which can ensure good heat dissipation of a heating device and can also provide certain support for the heating device, and the condition that a circuit board is damaged in the assembly process of the heating device can be effectively avoided. The following describes a battery pack provided in an embodiment of the present application.

Referring to fig. 1 to 5 together, a battery pack 10 according to an embodiment of the present disclosure will now be described. The battery pack 10 of the embodiment of the present application is mainly applied to a power supply device 100, and includes a battery module 11, a circuit board 12, and a support structure 115. Wherein, the battery module 11 has a first assembling surface 113; the circuit board 12 is disposed on the first mounting surface 113, and the circuit board 12 is provided with a heat generating device.

Optionally, referring to fig. 3, the battery module 11 generally includes a cell support 111 and a cell 112 disposed inside the cell support 111. One battery module 11 may include a plurality of battery cells 112. The battery module 11 is generally provided with a mounting carrier for mounting each device by the cell holder 111.

One of the functions of the circuit board 12 is to monitor the voltage information and the temperature information of each Battery cell 112 in the Battery pack 10, and the circuit board 12 may be a conventional Battery Management System (BMS) in the form of a BMS board connected to the Battery module 11, which is generally fixed on the cell support 111 of the Battery module 11. The heat generating devices on the circuit board 12 typically include various types of heat generating devices, such as various power devices, conductive posts, etc.

Referring to fig. 3, the support structure 115 is disposed between the first mounting surface 113 and the circuit board 12 and abuts against the first mounting surface 113 and the circuit board 12, and the support structure 115 is located corresponding to the heat generating device.

The supporting structure 115 may be disposed on the first mounting surface 113 or on the circuit board 12, and the supporting structure 115 is integrally located between the first mounting surface 113 and the circuit board 12 and abuts against a position of the circuit board 12 adjacent to the heat generating device, so as to support the circuit board 12 at the position of the heat generating device.

Referring to fig. 4 and 5, support structure 115 includes first and second opposed and spaced apart supports 1151 and 1152, the spaced-apart regions of which define a heat sink channel 1153 and air inlets 1154 and air outlets 1155 in communication with heat sink channel 1153. The intake port 1154 and the exhaust port 1155 form a convection channel design to facilitate ventilation and heat dissipation, wherein the intake port 1154 is configured to face the air-cooling device 21 of the power supply apparatus 100. The air-cooling device 21 of the power supply apparatus 100 is used to generate a heat dissipation air flow, and the air inlet 1154 is configured to face the air-cooling device 21 of the power supply apparatus 100, so that the air flow of the air-cooling device 21 enters the heat dissipation channel 1153, which can accelerate the heat dissipation.

The first support 1151 and the second support 1152 may have various types of upright wall structures, such as a straight support upright wall, a bent support upright wall, or an arc support upright wall. The heat radiation path 1153 may be formed in a linear shape, a curved shape, or the like.

The projection of the heat generating device along the direction perpendicular to the circuit board 12 is located within the range of the heat dissipating channel 1153, that is, the supporting structure 115 abuts against the bottom periphery of the heat generating device, and the heat dissipating channel 1153 corresponds to the heat generating device, so that heat generated by the heat generating device can be diffused into the heat dissipating channel 1153 formed by surrounding the first supporting portion 1151 and the second supporting portion 1152 as much as possible, and is discharged through the heat dissipating channel 1153. The above-mentioned position relationship between the heat generating device and the supporting structure 115 enables the supporting structure 115 to provide a certain supporting function for the position of the heat generating device on the circuit board 12, and at the same time, can ensure good heat dissipation for the heat generating device.

According to the battery pack 10 provided by the application, the battery pack comprises the battery module 11 and the circuit board 12, the circuit board 12 is arranged on the first assembling surface 113 of the battery module 11, the supporting structure 115 is arranged between the first assembling surface 113 of the battery module 11 and the circuit board 12, the supporting structure 115 is abutted against the first assembling surface 113 and the circuit board 12, and the position of the supporting structure 115 corresponds to the heating device, so that the heating device on the circuit board 12 can be supported through the supporting structure 115; the first supporting portion 1151 and the second supporting portion 1152 of the supporting structure 115 are disposed opposite to and spaced apart from each other, and a heat dissipation channel 1153 is formed therebetween, an air inlet 1154 of the heat dissipation channel 1153 is configured to face the air cooling device 21 of the power supply device 100, so that air flowing from the air cooling device 21 enters the heat dissipation channel 1153, a projection of the heat generating device along a direction perpendicular to the circuit board 12 is located within a range of the heat dissipation channel 1153, the heat generating device is suspended above the heat dissipation channel 1153, and heat of the heat generating device can be rapidly dissipated through the heat dissipation channel 1153. The supporting structure 115 ensures good heat dissipation of the heating device, and gives a certain support to the heating device, thereby effectively avoiding the damage to the circuit board 12 during the assembly process of the heating device.

In another embodiment of the present application, referring to fig. 3, 4 and 5, the heat generating device includes a conductive pillar 121, and the first supporting portion 1151 and the second supporting portion 1152 are both arc-shaped supporting plates, and the two arc-shaped supporting plates are annularly distributed. Specifically, the supporting structure 115 is formed by two arc-shaped supporting plates, and the supporting structure 115 abuts against the bottom of the circuit board 12 in a ring shape around the conductive post 121. Because the acting force transmitted from the conductive post 121 to the circuit board 12 is distributed annularly when the conductive post 121 locks the screw, the annular supporting structure 115 can better bear the acting force distributed annularly, which is beneficial to balancing the stress of the circuit board 12 and playing a role in supporting and protecting the circuit board 12 at the position of the conductive post 121. On the other hand, the lateral wall of the cavity that the curved backup pad encloses and establishes the formation is the arcwall face, and the arcwall face has good water conservancy diversion effect, can not form and hide wind corner, consequently, is favorable to leading the heat of electrical pillar 121 to discharge fast.

Optionally, the number of support structures 115 is the same as the number of conductive pillars 121.

In another embodiment of the present application, referring to fig. 3 and 6, the circuit board 12 is provided with a bonding pad 122 on a side facing the battery module 11, the bonding pad 122 is used for being connected to the conductive post 121 by soldering, and the first supporting portion 1151 and the second supporting portion 1152 are disposed adjacent to a peripheral edge of the bonding pad 122. Specifically, a mounting through hole is formed in the circuit board 12 at a mounting position corresponding to the conductive post 121, the conductive post 121 is inserted into the mounting through hole and welded to the circuit board 12, a pad 122 welded to the conductive post 121 is disposed at the bottom of the circuit board 12 corresponding to the periphery of the mounting through hole, the first supporting portion 1151 and the second supporting portion 1152 are both abutted to the periphery of the pad 122, that is, the pad 122 is located in an area surrounded by the first supporting portion 1151 and the second supporting portion 1152, so that the supporting structure 115 is prevented from being pushed onto solder around the conductive post 121 to damage the pad 122.

In another embodiment of the present application, referring to fig. 5, the extending direction of the heat dissipating channel 1153 is configured to be parallel to the airflow direction of the air-cooling device 21. Specifically, in this embodiment, the heat dissipation channel 1153 is linear, the extension end thereof is also linear, and the extension direction of the heat dissipation channel 1153 is parallel to the airflow direction of the air cooling device 21, so that the efficiency of convection heat dissipation can be improved, and the heat dissipation effect of the heat generating device can be improved.

In another embodiment of the present application, referring to fig. 7 and 8, the circuit board 12 has a connection terminal 123, the battery pack 10 further includes an elastic conductive sheet 13 and a connection member 14, the elastic conductive sheet 13 includes a first conductive sub-sheet 131 and a second conductive sub-sheet 132 connected to the first conductive sub-sheet 131, the first conductive sub-sheet 131 is spaced from the connection terminal 123, the second conductive sub-sheet 132 is electrically connected to the output end of the battery module 11, the connection member 14 connects the first conductive sub-sheet 131 and the connection terminal 123, and the connection member 14 is configured to apply a force to the first conductive sub-sheet 131 so that the first conductive sub-sheet 131 is in contact with the connection terminal 123.

Specifically, referring to fig. 7, in the battery pack 10, the battery module 11 is generally electrically connected to the circuit board 12 through the elastic conductive sheet 13. The elastic conductive sheet 13 may include a positive conductive sheet and a negative conductive sheet, which are in one-to-one contact with the positive and negative electrodes of the circuit board 12 to be conducted. The elastic conductive sheet 13 is a conductive sheet with certain elasticity, which can facilitate the repeated assembly of the conductive sheet.

Referring to fig. 7 and 8, the first sub-conductive sheet 131 of the elastic conductive sheet 13 is located below the circuit board 12, and in the assembly process of the elastic conductive sheet 13, the first sub-conductive sheet 131 needs to be spaced from the connection terminal 123 of the circuit board 12, i.e., cannot be conducted in advance, and after all the elastic conductive sheets are mounted in place, the elastic conductive sheet 13 is conducted with the connection terminal 123 again, so as to ensure that the elastic conductive sheet 13 is conducted with the positive and negative electrodes of the circuit board 12 according to the correct sequence, and to protect the components on the circuit board 12 from being burned out. On this basis, the connection member 14 is provided, and the first conductive sub-sheet 131 of the elastic conductive sheet 13 is allowed to contact the connection terminal 123 of the circuit board 12 by applying a force through the connection member 14.

The attachment member 14 may be selected from different types of fasteners such as screws, bolts, studs, pins, etc., as desired.

Specifically, referring to fig. 8, in an embodiment, a bolt is used as the connecting member 14, the bolt connects the circuit board 12 and the first conductive sub-sheet 131 of the elastic conductive sheet 13 from top to bottom, and when the bolt is tightened, the first conductive sub-sheet 131 of the elastic conductive sheet 13 is upwardly contacted with the connecting terminal 123 of the circuit board 12, so that the first conductive sub-sheet 131 is conducted with the connecting terminal 123.

In another embodiment of the present application, referring to fig. 7 and fig. 8, the battery module 11 has a second assembling surface 114 intersecting with the first assembling surface 113, the battery pack 10 further includes a fastening structure 15, the fastening structure 15 includes a first fastening 151 disposed on the first assembling surface 113 and a second fastening 152 disposed on the second assembling surface 114, the first fastening 151 is used for fixing the first sub-conductive sheet 131, and the second fastening 152 is used for fixing the second sub-conductive sheet 132.

Specifically, in the present embodiment, the first fitting surface 113 and the second fitting surface 114 are substantially perpendicular to each other with reference to fig. 7. The second assembling surface 114 of the battery module 11 is mainly used for limiting the connecting end of the battery core 112 in the battery module 11. The elastic conductive sheet 13 connects the end of the battery cell 112 on the second mounting surface 114 to the circuit board 12 on the first mounting surface 113, and correspondingly, the elastic conductive sheet 13 is provided in a bent structure. That is, the first sub-conductive sheet 131 of the bent elastic conductive sheet 13 is spaced apart from the connection terminal 123, and the second sub-conductive sheet 132 is electrically connected to the output terminal of the battery module 11.

Since the position of the elastic conductive sheet 13 is easy to change and the structure of the elastic conductive sheet 13 is easy to deform during the installation process, the elastic conductive sheet 13 may move upward or tilt after being installed, and the elastic conductive sheet 13 and the circuit board 12 may be mistakenly touched to cause early conduction. Based on this problem, the first fastener 151 is configured to fix the first sub-conductive piece 131 in advance to prevent the first sub-conductive piece 131 from tilting, and the second fastener 152 is configured to fix the second sub-conductive piece 132 to prevent the second sub-conductive piece 132 from tilting. The first latch 151 is latched to the first conductive sub-sheet 131 at a position below the circuit board 12.

The first conductive sub-sheet 131 is fixed in advance by the first buckle 151, and after the rest of the components are installed in place, the connecting member 14 can be adjusted to apply an acting force to the first conductive sub-sheet 131 through the connecting member 14, so that the first conductive sub-sheet 131 can be separated from the first buckle 151 and contact with the connecting terminal 123 of the circuit board 12.

In an embodiment, to ensure that the first sub-conductive sheet 131 can smoothly come out from the first buckle 151 under the action of the connecting member 14, and to prevent the first sub-conductive sheet 131 from being locked in the first buckle 151, the fastening amount of the first buckle 151 and the first sub-conductive sheet 131 is set to be 0.3-1.5mm. The first conductive sub-sheet 131, which can smoothly come off from the first buckle 151 without deformation, can be in close contact with the connection terminal 123 of the circuit board 12, thereby avoiding the problem of serious heat generation caused by too small contact area between the two.

In one embodiment, in order to prevent the second sub-conductive sheet 132 from falling off from the second fastener 152, the fastening amount of the second fastener 152 and the second sub-conductive sheet 132 is set to be greater than 1.5mm.

Referring to fig. 8, in another embodiment, the battery pack 10 further includes a positioning post 16, and the second sub-conductive sheet 132 of the elastic conductive sheet 13 is positioned on the second mounting surface 114 by the positioning post 16 in order to prevent the position of the elastic conductive sheet 13 relative to the first latch 151 and the second latch 152 from being changed.

In another embodiment of the present application, referring to fig. 9 and 10, the first latch 151 includes two connecting rods 1511 disposed on the first assembling surface 113 and two hooks 1512 connected to the connecting rods 1511, a distance between the connecting rods 1511 of the two first latches 151 is greater than or equal to a width of the first sub-conductive sheet 131, a distance between the hooks 1512 of the two first latches 151 is less than a width of the first sub-conductive sheet 131, the hooks 1512 have a first guide surface 15121 and a second guide surface 15122 facing away from each other, the first guide surface 15121 is configured to slidably cooperate with the first sub-conductive sheet 131 to guide the first sub-conductive sheet 131 to fall into the first latch 151, and the second guide surface 15122 is configured to slidably cooperate with the first sub-conductive sheet 131 to guide the first sub-conductive sheet 131 to fall out of the first latch 151.

Specifically, referring to fig. 10, the first guide surface 15121 is an inclined surface inclined toward the installation direction of the first conducting sub-sheet 131, and the first conducting sub-sheet 131 can slide into the engaging position of the first engaging member 151 from the first guide surface 15121 during installation. The second guiding surface 15122 is an inclined surface inclined toward the releasing direction of the first conducting sub-sheet 131, and when the first conducting sub-sheet 131 needs to be released from the first buckle 151, the first conducting sub-sheet 131 slides outward along the second guiding surface 15122 so as to be smoothly released from the buckling position to the outside of the first buckle 151. The provision of the first guide surface 15121 and the second guide surface 15122 prevents irreversible deformation caused by over-tightening of the conductive elastic sheet 13 and allows the conductive elastic sheet 13 to be repeatedly assembled.

In another embodiment of the present application, referring to fig. 3, 11 and 12, the battery pack 10 further includes an insulation sheet 17 and an overhead structure 116, the overhead structure 116 is disposed on the second mounting surface 114, the insulation sheet 17 covers the overhead structure 116, a separation gap is formed between the insulation sheet 17 and the second mounting surface 114, and the second sub-conductive sheet 132 is disposed between the insulation sheet 17 and the second mounting surface 114.

In the battery module 11, in order to prevent the positive and negative electrodes of the battery cell 112 from being damaged or short-circuited due to contact with a foreign object during installation or use, generally, the insulating sheets 17 are attached to the front and back surfaces of the battery module 11 to shield the positive and negative electrodes of the battery cell 112. In this embodiment, the insulating sheet 17 covers the overhead structure 116 of the second mounting surface 114, and the overhead structure 116 supports the insulating sheet 17 and forms a separation gap between the insulating sheet 17 and the second mounting surface 114, so that the insulating sheet 17 can be easily torn off by using the separation gap during maintenance or detection.

In another embodiment of the present application, referring to fig. 3, 11 and 12, the battery pack 10 further includes a frame 117, the frame 117 surrounds the insulating sheet 17, at least one corner of the insulating sheet 17 is provided with a notch 171, and a notch 172 is formed between the notch 171 and the frame 117.

Specifically, in the present embodiment, the output end of the battery module 11 is covered and shielded by a whole insulating sheet 17, and the insulating sheet 17 is jacked up by the overhead structure 116 disposed on the second mounting surface 114. Frame 117 encloses the week side that closes in insulating piece 17, and by the breach 171 on the insulating piece 17 and the breach 172 that frame 117 formed jointly, can provide the application of force position for the operator hand tears insulating piece 17, operator's accessible finger stretches into in this breach 172 to easily tear insulating piece 17 from second mounting surface 114.

Alternatively, in an embodiment, with reference to fig. 3 and 12, the overhead structure 116 is disposed at the four corners of the second mounting surface 114, so as to provide uniform support to the insulating sheet 17. In this embodiment, the cavity area 1161 is formed by enclosing the overhead structure 116 and the frame 117 corresponding to the four corners, the corner portion of the insulating sheet 17 having the notch 171 is located within the opening range of the cavity area 1161, the notch 172 is formed at the opening of the cavity area 1161, and an operator can take the corner portion of the insulating sheet 17 through the notch 172, thereby tearing the insulating sheet 17.

Referring to fig. 1 and fig. 2, the present application further provides a power supply apparatus 100, which includes a housing 20, an air cooling device 21, and the battery pack 10 according to the above embodiment, wherein the battery pack 10 and the air cooling device 21 are disposed in the housing 20, and an air inlet 1154 of a heat dissipation channel 1153 of the battery pack 10 faces the air cooling device 21.

The power supply device 100 of the present application adopts the battery pack 10 as described above, the battery pack 10 includes the battery module 11 and the circuit board 12, the circuit board 12 is disposed on the first mounting surface 113 of the battery module 11, the supporting structure 115 is disposed between the first mounting surface 113 of the battery module 11 and the circuit board 12, the supporting structure 115 abuts against the first mounting surface 113 and the circuit board 12, and the position of the supporting structure 115 corresponds to the heat generating component, so that the heat generating component on the circuit board 12 can be supported by the supporting structure 115; the first supporting portion 1151 and the second supporting portion 1152 of the supporting structure 115 are disposed opposite to and spaced apart from each other, and a heat dissipation channel 1153 is formed therebetween, an air inlet 1154 of the heat dissipation channel 1153 is configured to face the air cooling device 21 of the power supply device 100, so that air flowing from the air cooling device 21 enters the heat dissipation channel 1153, a projection of the heat generating device along a direction perpendicular to the circuit board 12 is located within a range of the heat dissipation channel 1153, the heat generating device is suspended above the heat dissipation channel 1153, and heat of the heat generating device can be rapidly dissipated through the heat dissipation channel 1153. The supporting structure 115 ensures good heat dissipation of the heating device, and gives a certain support to the heating device, thereby effectively avoiding the damage to the circuit board 12 during the assembly process of the heating device. The air inlet 1154 of the heat dissipation channel 1153 of the battery pack 10 is arranged to face the air cooling device 21, so that the heat in the heat dissipation channel 1153 is quickly discharged through the air cooling device 21, and effective heat dissipation of the internal heat generating devices of the power supply device 100 can be ensured.

The present invention is not intended to be limited to the particular embodiments shown and described, but is to be accorded the widest scope consistent with the principles and novel features herein disclosed.

Claims

1. A battery pack applied to power supply equipment is characterized by comprising:

the battery module is provided with a first assembling surface;

2. The battery pack according to claim 1, wherein the heat generating device includes a conductive post, the first support portion and the second support portion are both arc-shaped support plates, and the two arc-shaped support plates are annularly distributed.

3. The battery pack according to claim 2, wherein the circuit board is provided with a land on a side thereof facing the battery module, the land being for solder connection with the conductive post, and the first support portion and the second support portion are provided adjacent to a peripheral edge of the land.

4. The battery pack according to claim 1, wherein an extending direction of the heat dissipation channel is arranged in parallel with an air flow direction of the air-cooling device.

5. The battery pack according to any one of claims 1 to 4, wherein the circuit board has a connection terminal, the battery pack further comprises an elastic conductive sheet and a connection member, the elastic conductive sheet comprises a first sub conductive sheet and a second sub conductive sheet connected to the first sub conductive sheet, the first sub conductive sheet is spaced from the connection terminal, the second sub conductive sheet is electrically connected to the output end of the battery module, the connection member is connected to the first sub conductive sheet and the connection terminal, and the connection member is configured to apply an acting force to the first sub conductive sheet so that the first sub conductive sheet is in contact with the connection terminal.

6. The battery pack of claim 5, wherein the battery module has a second mounting surface intersecting the first mounting surface, and the battery pack further comprises a snap structure, wherein the snap structure comprises a first snap provided on the first mounting surface and a second snap provided on the second mounting surface, the first snap is used for fixing the first sub-conductive sheet, and the second snap is used for fixing the second sub-conductive sheet.

7. The battery pack according to claim 6, wherein the first fasteners include two connecting rods disposed on the first assembly surface and two hooks connected to the connecting rods, a distance between the two connecting rods of the first fasteners is greater than or equal to a width of the first sub-conductive sheet, a distance between the two hooks of the first fasteners is less than a width of the first sub-conductive sheet, the hooks have a first guide surface and a second guide surface which are away from each other, the first guide surface is configured to slide-fit with the first sub-conductive sheet to guide the first sub-conductive sheet to fall into the first fastener, and the second guide surface is configured to slide-fit with the first sub-conductive sheet to guide the first sub-conductive sheet to fall out of the first fastener.

8. The battery pack of claim 6, further comprising an insulating sheet and an overhead structure, wherein the overhead structure is disposed on the second mounting surface, the insulating sheet covers the overhead structure and forms a separation gap with the second mounting surface, and the second sub-conductive sheet is disposed between the insulating sheet and the second mounting surface.

9. The battery pack according to claim 8, further comprising a frame body surrounding the insulating sheet, wherein at least one corner of the insulating sheet has a notch, and wherein a notch is formed between the notch and the frame body.

10. A power supply device, comprising a housing, an air cooling device, and the battery pack according to any one of claims 1 to 9, wherein the battery pack and the air cooling device are disposed in the housing, and an air inlet of a heat dissipation channel of the battery pack faces the air cooling device.