Battery assembly, detection method and unmanned aerial vehicle

Abstract

The embodiment of the invention relates to the technical field of aircrafts, and particularly discloses a battery assembly and a power supply module applied to an unmanned aerial vehicle, the power supply module comprises a battery bin, the battery bin is provided with a containing cavity and a first clamping structure, a second clamping structure in the battery assembly is arranged on a battery body, and the first clamping structure or the second clamping structure can elastically deform. When the battery body is inserted into the containing cavity in the first direction, the first clamping structure or the second clamping structure deforms in the second direction, when the battery body is inserted into a preset locking position, the first clamping structure or the second clamping structure restores deformation, the second clamping structure and the first clamping structure are connected in a clamped mode, and the first direction is perpendicular to the second direction. And the detection assembly arranged on the battery body is used for determining that the first clamping structure and the second clamping structure are clamped when elastic deformation is detected and deformation is recovered. In this way, whether the battery assembly is locked in the battery compartment or not can be accurately judged, and the risk that the battery assembly is separated from the battery compartment can be reduced.

Description

Technical Field

[0001] The embodiments of the present invention relate to the field of aircraft technology, and in particular to a battery assembly, a detection method, and an unmanned aerial vehicle. Background Art

[0002] Unmanned aerial vehicles (UAVs) are increasingly being used in various fields due to their advantages of maneuverability, rapid response, unmanned flight, and low operational requirements. Currently, the primary energy source for UAVs is their own power supply module, which typically includes a battery compartment and a battery assembly. The battery compartment includes a receiving cavity and a card slot, and the card slot is located on the wall of the receiving cavity. The receiving cavity is provided with elastic conductive contacts for electrically connecting to other components of the UAV. The battery assembly includes a battery body and an elastic card connector, which includes an elastic arm and a card holder provided on the elastic arm. When the battery assembly is inserted into the receiving cavity, the elastic conductive contacts contact and conduct electricity with the electrodes of the battery body. When the battery body is fully inserted and the card holder is engaged with the card slot, the elastic conductive contacts are compressed, thereby maintaining contact between the battery body and the elastic conductive contacts.

[0003] In the process of implementing the embodiments of the present application, the inventors discovered that the power supply module of the unmanned aerial vehicle verifies whether the battery assembly is securely locked in the battery compartment by detecting contact and continuity between the elastic conductive contacts and the electrodes of the battery body. However, when the battery assembly is inserted into the receiving cavity, the elastic conductive contacts are in contact and continuity with the electrodes of the battery body, but at this time, the card holder has not yet been engaged with the card slot, and the battery assembly is not securely locked in the battery compartment. Only when the battery assembly is pressed into the bottom of the receiving cavity does the card holder engage with the card slot and the battery assembly is securely locked in the battery compartment. If the card holder has not yet engaged with the card slot, the battery assembly is mistakenly believed to be securely locked in the battery compartment, which can cause the unmanned aerial vehicle to start up. When the unmanned aerial vehicle is turned on, the vibration generated by the rotation of the unmanned aerial vehicle's propellers can easily cause the battery body to loosen and fall, causing a crash. Summary of the Invention

[0004] In view of the above problems, embodiments of the present invention provide a battery assembly, a detection method, and an unmanned aerial vehicle, which overcome the above problems or at least partially solve the above problems.

[0005] In order to solve the above technical problems, a technical solution adopted by the present invention is: to provide a battery assembly, which is applied to a power supply module of an unmanned aerial vehicle, wherein the power supply module includes a battery compartment, and the battery compartment is provided with a receiving cavity and a first clamping structure. The battery assembly includes a battery body and a second clamping structure, and the second clamping structure is provided on the battery body. One of the first clamping structure and the second clamping structure has elastic deformation performance. When the battery body is inserted into the receiving cavity along a first direction, the one of the first clamping structure and the second clamping structure with elastic deformation performance is deformed along a second direction. When the battery body is inserted into the preset lock along the first direction When in a fixed position, one of the first and second clamping structures having elastic deformation properties recovers the deformation, and the second clamping structure is clamped to the first clamping structure, wherein the first direction and the second direction are perpendicular; the battery assembly also includes a detection assembly, which is provided on the battery body, and the detection assembly is used to detect the deformation state of one of the first and second clamping structures having elastic deformation properties. When the detection assembly detects that one of the first and second clamping structures having elastic deformation properties first undergoes elastic deformation and then recovers the deformation, it is determined that the first clamping structure and the second clamping structure are clamped.

[0006] Optionally, the first clamping structure is a clamping hole provided on the inner wall of the battery compartment; the second clamping structure has elastic deformation performance, and the second clamping structure includes an elastic arm and a clamping block, one end of the elastic arm is fixed to the battery body, and the clamping block is fixed to the other end of the elastic arm; when the battery body is inserted into the receiving cavity along the first direction, the elastic arm is deformed due to the interference of the battery compartment on the clamping block, and when the battery body is inserted into the preset locking position along the first direction, the clamping block is engaged with the clamping hole, and the elastic arm recovers its deformation.

[0007] Optionally, the second clamping structure is a through hole provided on the battery body; the first clamping structure has elastic deformation performance, and the first clamping structure includes an elastic arm and a clamping block, one end of the elastic arm is fixed to the battery compartment, and the clamping block is fixed to the other end of the elastic arm; when the battery body is inserted into the accommodating cavity along the first direction, the elastic arm is deformed due to the interference of the battery on the clamping block, and when the battery body is inserted into the preset locking position along the first direction, the clamping block is engaged with the clamping hole, and the elastic arm recovers its deformation.

[0008] Optionally, the blocking block is provided with a guiding slope, and along the first direction, the vertical distance between the guiding slope and the elastic arm gradually decreases.

[0009] Optionally, the detection component includes a detection power supply, a spring, a fixed piece, a first conductive contact, a second conductive contact and a current detection unit, one end of the spring is fixed to the battery body, the first conductive contact is fixed to the other end of the spring, one end of the fixed piece is fixed to the battery body, the second conductive contact is fixed to the other end of the fixed piece, the detection power supply is electrically connected to the first conductive contact, the second conductive contact is grounded, and the current detection unit is connected to the second conductive contact; when the battery body is inserted into the receiving cavity along the first direction, there is elasticity in the first clamping structure and the second clamping structure One of the deformable structures deforms along the second direction and pushes the spring to deform so that the first conductive contact and the second conductive contact contact each other; when the battery body is inserted into the preset locking position along the first direction, one of the first clamping structure and the second clamping structure with elastic deformation properties recovers its deformation, and the spring recovers its deformation, and the first conductive contact and the second conductive contact are separated; the current detection unit is used to detect the current of the second conductive contact, and when it is detected that the current passes through the second conductive contact and then disappears, it is determined that the first clamping structure and the second clamping structure are engaged.

[0010] Optionally, the detection component further includes a resistor, and the second conductive contact is grounded via the resistor.

[0011] Optionally, the detection component includes a contact switch. When the battery body is inserted into the accommodating cavity along the first direction, one of the first clamping structure and the second clamping structure having elastic deformation properties is deformed along the second direction and abuts against the contact switch. When the battery body is inserted to a preset locking position along the first direction, one of the first clamping structure and the second clamping structure having elastic deformation properties recovers the deformation and is separated from the contact switch.

[0012] Optionally, the detection component includes a magnetic part and a Hall sensor, the Hall sensor is fixed to the battery body, and the magnetic part is close to the second clip structure; when the battery body is inserted into the accommodating cavity along the first direction, one of the first clip structure and the second clip structure with elastic deformation properties is deformed along the second direction, and pushes the magnetic part close to the Hall sensor, and when the battery body is inserted to a preset locking position along the first direction, one of the first clip structure and the second clip structure with elastic deformation properties recovers the deformation, and the magnetic part moves away from the Hall sensor; the Hall sensor is used to sense the strength of the magnetic field, and when the strength of the sensed magnetic field first increases and then decreases, it is determined that the first clip structure and the second clip structure are engaged.

[0013] To solve the above problem, another technical solution adopted by the present invention is to provide an unmanned aerial vehicle, including a power supply module, the power supply module including a battery compartment and the battery assembly as described above, the battery compartment is provided with a receiving cavity and a first clamping structure.

[0014] To solve the above problem, another technical solution adopted by the present invention is to provide a detection method, which is executed by the battery assembly as described above, and the method includes: obtaining the detection result of the detection assembly of the power supply module; based on the detection result, judging whether one of the first clamping structure and the second clamping structure of the power supply module with elastic deformation performance first undergoes elastic deformation and then recovers the deformation; if so, determining that the first clamping structure and the second clamping structure of the power supply module are engaged, and the battery assembly in the power supply module is locked.

[0015] Optionally, an elastic conductive part is provided in the battery compartment of the power supply module, and when the battery body of the power supply module is inserted into the receiving cavity, the elastic conductive part maintains contact with the electrode of the battery body; the step of determining that the first clamping structure and the second clamping structure are engaged and the battery assembly in the power supply module is locked further includes: when it is determined that one of the first clamping structure and the second clamping structure with elastic deformation performance first undergoes elastic deformation and then recovers the deformation, determining whether the elastic conductive part and the electrode of the battery body are in contact; if the elastic conductive part and the electrode of the battery body are in contact, it is determined that the first clamping structure and the second clamping structure are engaged, and the battery assembly in the power supply module is locked.

[0016] Optionally, the step of determining whether the elastic conductive part is in contact with the electrode of the battery body further includes: obtaining the voltage of the elastic conductive part; determining whether the voltage is greater than a preset voltage; and if so, determining that the elastic conductive part is in contact with the electrode of the battery body.

[0017] The beneficial effects of the embodiments of the present invention are as follows: different from the prior art, the embodiments of the present application provide a receiving cavity and a first clamping structure in the battery compartment, and provide a second clamping structure on the battery body of the battery assembly; when the battery body is inserted into the receiving cavity along the first direction, one of the first clamping structure and the second clamping structure having elastic deformation properties is deformed along the second direction; when the battery body is inserted into the preset locking position along the first direction, one of the first clamping structure and the second clamping structure having elastic deformation properties recovers the deformation, and the second clamping structure is clamped to the first clamping structure; in other words, the first clamping structure and the second clamping structure can be clamped together by detecting the component. The deformation state of one of the elastic deformation properties in the second clamping structure, when the detection component detects that one of the elastic deformation properties in the first clamping structure and the second clamping structure first undergoes elastic deformation and then recovers the deformation, it can be determined that the first clamping structure and the second clamping structure are completely engaged, and the battery assembly is locked in the battery compartment. Compared with determining whether the battery assembly is locked in the battery compartment by detecting whether the conductive contacts and the electrodes of the battery body are conductive, the method of determining whether the battery assembly is locked in the battery compartment in this application is more accurate, which is conducive to reducing the risk of false alarm that the battery assembly is locked in the battery compartment, and thereby reducing the risk of the battery assembly being detached from the battery compartment. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following is a brief introduction to the drawings required for use in the embodiments of the present application. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on the drawings without creative work.

[0019] Figure 1 is an exploded view of a power supply module provided by an embodiment of the present invention;

[0020] Figure 2 is a cross-sectional view of a battery assembly of a power supply module provided by one embodiment of the present invention, wherein a clamping block abuts against a side wall of an opening of a receiving cavity;

[0021] Figure 3 is a cross-sectional view showing the interference between a card block of a battery assembly of a power supply module and an inner wall of a receiving cavity provided by one embodiment of the present invention;

[0022] Figure 4 This is a cross-sectional view of a card block of a battery assembly of a power supply module provided by one embodiment of the present invention being engaged with a card hole;

[0023] Figure 5 This is a circuit structure diagram of a power supply module provided by one embodiment of the present invention;

[0024] Figure 6is a cross-sectional view of a battery assembly of a power supply module provided by another embodiment of the present invention, wherein a clamping block abuts against a side wall of an opening of a receiving cavity;

[0025] Figure 7 is a cross-sectional view showing the interference between a card block of a battery assembly of a power supply module and an inner wall of a receiving cavity provided by another embodiment of the present invention;

[0026] Figure 8 is a cross-sectional view of a card block of a battery assembly of a power supply module provided by another embodiment of the present invention being engaged with a card hole;

[0027] Figure 9 is a cross-sectional view of a battery assembly of a power supply module provided by yet another embodiment of the present invention, wherein a clamping block abuts against a side wall of an opening of a receiving cavity;

[0028] Figure 10 is a cross-sectional view showing the interference between a card block of a battery assembly of a power supply module and an inner wall of a receiving cavity provided by yet another embodiment of the present invention;

[0029] Figure 11 is a cross-sectional view of a card block of a battery assembly of a power supply module provided by yet another embodiment of the present invention being engaged with a card hole;

[0030] Figure 12 is a schematic diagram of an unmanned aerial vehicle provided by an embodiment of the present invention;

[0031] Figure 13 is a flow chart of a detection method provided by one embodiment of the present invention;

[0032] Figure 14 is a flow chart of a detection method provided by another embodiment of the present invention;

[0033] Figure 15 This is a flow chart of determining whether an elastic conductive member is in contact with an electrode of a battery body in a detection method provided by another embodiment of the present invention. DETAILED DESCRIPTION

[0034] For ease of understanding of the present invention, the present invention will be described in more detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that when an element is described as "fixed to" another element, it can be directly on the other element, or there can be one or more centered elements therebetween. When an element is described as "connected to" another element, it can be directly connected to the other element, or there can be one or more centered elements therebetween. The terms "vertical", "horizontal", "left", "right" and similar expressions used in this specification are for illustrative purposes only.

[0035] Unless otherwise defined, all technical and scientific terms used in this specification have the same meanings as those commonly understood by those skilled in the art to which this invention belongs. The terms used in this specification and in the description of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" as used in this specification includes any and all combinations of one or more of the relevant listed items.

[0036] See also Figure 1 and Figure 2 The power supply module 1000 includes a battery compartment 1 and a battery assembly 2. The battery assembly 2 is provided with a detection assembly 3. The battery assembly 2 can be detachably installed in the battery compartment 1. When the battery assembly 2 is installed in the battery compartment 1, the battery assembly 2 is conductively connected to the elastic conductive member 12 in the battery compartment 1. The detection assembly 3 is used to detect whether the battery assembly 2 and the battery compartment 1 are installed in place, that is, whether the battery assembly 2 is locked in the battery compartment 1.

[0037] For the battery compartment 1 above, please continue to refer to Figure 1 and Figure 2 The battery compartment 1 is provided with a receiving cavity 10 with an opening 、 The first engaging structure 11 and the elastic conductive member 12 are located on the bottom wall of the receiving chamber 10 away from the opening. The elastic conductive member 12 is used to connect to the load. The battery assembly 2 can slide into the receiving chamber 10 from the opening along the first direction x. When the receiving chamber 10 receives the battery assembly 2, the battery assembly 2 is electrically connected to the elastic conductive member 12, and the battery assembly 2 supplies power to the load through the elastic conductive member 12. For example, when the power supply module 1000 is applied to the unmanned aerial vehicle 2000, the motor on the unmanned aerial vehicle 2000 is the load. When the battery assembly 2 is received in the receiving chamber 10, the battery assembly 2 supplies power to the motor through the elastic conductive member 12. The first engaging structure 11 is a locking hole 111 provided on the inner wall of one end of the battery compartment 1. When the battery assembly 2 slides to a position close to the bottom of the receiving chamber 10, that is, reaches a preset locking position, the locking hole 11 is used to engage with the structure on the battery assembly 2 to lock the battery assembly 2 in the receiving chamber 10, thereby reducing the risk of the battery assembly 2 sliding out of the receiving chamber 10.

[0038] It should be noted that the elastic conductive part 12 has elastic deformation properties. For example, the elastic conductive part 12 is a metal spring. When the battery assembly 2 is fixed in the receiving cavity 10, even if the battery assembly 2 slides in the battery compartment, the elastic conductive part 12 maintains conductivity with the battery assembly 2 through elastic deformation, which is beneficial to reduce the risk of the battery assembly 2 being disconnected from the load due to vibration of the power supply module 1000.

[0039] In some embodiments, the battery compartment 1 is provided with a guide ridge 13 on the inner wall of the receiving cavity 10. The guide ridge 13 is provided with an inclined surface. The inclined surface is used to cooperate with the battery assembly 2 when the battery assembly 2 is inserted into the receiving cavity, guiding the battery assembly 2 to slide into the battery compartment.

[0040] Regarding the battery assembly 2 described above, please continue to refer to 1. The battery assembly 2 includes a battery body 21 and a second clamping structure 22. The battery body 21 is provided with electrodes, such as a positive electrode and a negative electrode. When the battery assembly 2 is received in the receiving cavity 10, the electrodes contact and conduct with the elastic conductive member 12, thereby providing power. The second clamping structure 22 includes an elastic arm 222 and a clamping block 221. One end of the elastic arm 222 is fixed to the battery body 21, and the clamping block 221 is fixed to the elastic arm 222. The elastic arm 222 is made of a material having elastic deformation properties, such as metal, a relatively hard plastic, etc. When the elastic arm 222 is made of a material having elastic deformation properties, the second clamping structure 22 is an elastically deformable clamping structure. During the process of the battery assembly 2 sliding into the receiving chamber 10, due to the interference between the block 221 and the inner wall of the receiving chamber 10, the other end of the elastic arm 222 deflects in the second direction y (i.e., the direction of the elastic arm 222 away from the surface of the block 221, also called the direction away from the inner wall of the receiving chamber 10). When the battery assembly 2 slides into the preset locking position, the block 221 is engaged with the locking hole 11, and the other end of the elastic arm 222 recovers its deformation, and the battery assembly 2 is locked in the battery compartment 10. Figures 2 to 4 The deformation process of the elastic arm 222 during the insertion of the battery assembly into the receiving cavity is shown in detail. Figure 2 This is a cross-sectional view of a battery assembly of a power supply module provided by one embodiment of the present invention, wherein a card block abuts against a side wall of an opening of a receiving cavity. Figure 3 2 is a cross-sectional view showing the interference between the card block of the battery assembly of the power supply module and the inner wall of the receiving cavity provided by one embodiment of the present invention. Figure 4 This is a cross-sectional view of a card block of a battery assembly of a power supply module provided by one embodiment of the present invention being engaged with a card hole;

[0041] It is understood that the first engaging structure 11 and the second engaging structure 22 are not limited to the above-described structures, but may also be other structures. For example, the second engaging structure 22 is a locking hole formed in the battery body 21, and the first engaging structure 11 includes an elastic arm and a clamping block. One end of the elastic arm is fixed to the battery compartment 1, and the other end of the elastic arm is fixed to the clamping block. When the elastic arm is made of a material with elastic deformation properties, such as metal, plastic with high hardness, etc., when the elastic arm is made of a material with elastic deformation properties, the first engaging structure 11 is a clamping structure with elastic deformation properties. During the process of the battery assembly 2 sliding into the receiving cavity 10, due to the interference between the clamping block and the outer wall of the battery body 21, the other end of the elastic arm deflects in the second direction y (i.e., in the direction of the surface of the elastic arm away from the clamping block, also called away from the outer wall of the battery body). When the battery assembly 2 slides into the preset locking position, the clamping block is engaged in the locking hole, and the other end of the elastic arm recovers its deformation.

[0042] In short, it is sufficient that one of the first snap-fitting structure 11 and the second snap-fitting structure 22 has elastic deformation properties. When the battery body 21 is inserted into the receiving cavity 10 along the first direction x, the elastically deformable one of the first snap-fitting structure 11 and the second snap-fitting structure 22 deforms along the second direction. When the battery body 21 is inserted along the first direction x to a predetermined locking position, the elastically deformable one of the first snap-fitting structure 11 and the second snap-fitting structure 22 recovers its deformation, and the second snap-fitting structure 22 snaps into engagement with the first snap-fitting structure 11. When the second snap-fitting structure 22 snaps into engagement with the first snap-fitting structure 11, the battery body 21 is locked to the battery compartment 1, thereby reducing the risk of the battery assembly 2 slipping out of the receiving cavity 10. The first direction x and the second direction y are perpendicular, and the second direction y is the direction from one side of the battery body 21 where the second snap-fitting structure 22 is located to the other side of the battery body 21.

[0043] In some embodiments, please refer to Figure 1 The card block 221 is provided with a guiding slope 2110. Along the first direction x, the vertical distance between the guiding slope 2110 and the elastic arm 222 gradually decreases. The guiding slope 2110 is used to guide the card block 221 to slide into the receiving cavity 10 along the first direction, so as to reduce the influence of the side wall of the opening of the battery compartment 1 in the receiving cavity 10 on the sliding of the card block 221 into the receiving cavity 10.

[0044] In some embodiments, a pressing block 223 is further provided at the other end of the elastic arm 222. The pressing block 223 is used for manually pressing the elastic arm 222 to cause the elastic arm 222 to undergo elastic deformation, so that the card block 221 is separated from the card hole 111, the first clamping structure 11 and the second clamping structure 22 are disengaged, and the user can remove the battery assembly 2 from the receiving cavity 10. Furthermore, the surface of the pressing block 223 facing away from the elastic arm 222 is provided with concave and convex stripes, which are used to increase the friction when the user's hand presses. The outer surface of the battery body 21 is also provided with a guide groove 211. The guide groove 211 cooperates with the guide ridge 13 to position the battery body 21 and slide it into the battery compartment 1, while achieving the relative positioning of the first clamping structure 11 and the second clamping structure 22.

[0045] For the above-mentioned detection component 3, since one of the first clamping structure 11 and the second clamping structure 22 with elastic deformation performance is deformed first and then restored to its original shape during the process of the battery component 2 sliding into the receiving cavity 10, the detection component 3 can first detect whether one of the first clamping structure 11 and the second clamping structure 22 with elastic deformation is first deformed and then restored to its original shape. If so, it is determined that the first clamping structure 11 and the second clamping structure 22 are engaged, and the battery body 21 is locked in the battery compartment 1.

[0046] In some embodiments, please refer to Figures 2 to 4 shown, and combined Figure 5 The detection component 3 is arranged inside the battery body 21. The detection component 3 includes a spring 31, a stator 32, a first conductive contact 33, a second conductive contact 34, a detection power supply 35 and a current detection unit 36. One end of the spring 31 and one end of the stator 32 are both fixed to the battery body 21. The spring 31 and the stator 32 are spaced apart along the second direction y. The first conductive contact 33 is fixed on the surface of the other end of the spring 31 facing the stator 32, and the second conductive contact 34 is fixed on the surface of the other end of the stator 32 facing the spring 31. The detection power supply 35 is electrically connected to the first conductive contact 33, and the current detection unit 36 ​​is connected to the second conductive contact 34. The detection power supply 35 is used to provide power, and the current detection unit 36 ​​is used to detect the current of the second conductive contact 34.

[0047] The second conductive contact 34 is also connected to the resistor 37 , and the second conductive contact 34 is grounded through the resistor 37 , so as to prevent a short circuit caused by a rapid change in the current of the second conductive contact 34 , thereby increasing the safety of the detection component 3 .

[0048] When the battery body 21 is inserted into the receiving cavity 10 along the first direction x, one of the first clamping structure 11 and the second clamping structure 22 with elastic deformation performance is deformed along the second direction y, pushing the spring 31 to deform, so that the first conductive contact 33 contacts the second conductive contact 34, and the circuit is turned on. When the battery body 21 is inserted into the preset locking position along the first direction x, the first clamping structure 11 and the second clamping structure 22 cooperate to clamp, and the one of the first clamping structure 11 and the second clamping structure 22 with elastic deformation performance recovers the deformation, the first conductive contact 33 is separated from the second conductive contact 34, the circuit is disconnected, and the reverse In other words, when the current detection unit 36 ​​detects that current is passing through the second conductive contact 34, it can be determined that one of the first clamping structure 11 and the second clamping structure 22 with elastic deformation properties has been deformed. When the current of the second conductive contact 34 disappears, it can be determined that one of the first clamping structure 11 and the second clamping structure 22 with elastic deformation properties has recovered its deformation. In short, when the current detection unit 36 ​​detects that current is passing through the second conductive contact 34 and then disappears, it can be determined that the first clamping structure 11 and the second clamping structure 22 are engaged, and the battery assembly 2 in the power supply module 1000 is locked.

[0049] For the convenience of understanding, the first clamping structure 11 is a clamping hole 11, the second clamping structure 22 includes an elastic arm 222 and a clamping block 221, and the first clamping structure 11 includes an elastic arm and a clamping block, and the second clamping structure 22 is a clamping hole.

[0050] (1) When the first clamping structure 11 is a clamping hole 11 and the second clamping structure 22 includes an elastic arm 222 and a clamping block 221, when the battery body 21 is inserted into the receiving cavity 10 along the first direction x, the elastic arm 222 is deformed along the second direction y by the interference of the inner wall of the battery compartment 1 in the receiving cavity 10 with the clamping block 221, and then the elastic arm 222 pushes the elastic sheet 31 to deform, so that the first conductive contact 33 contacts the second conductive contact 34, the circuit is turned on, and the current detection unit 36 ​​detects the current; when the battery body 21 is inserted into the preset locking position along the first direction x, the clamping block 221 is engaged with the clamping hole 11, the elastic arm 222 recovers its deformation, and the elastic sheet 31 recovers its deformation accordingly, the first conductive contact 33 separates from the second conductive contact 34, the circuit is disconnected, and the current detection unit 36 ​​cannot detect the current.

[0051] (2) When the first clamping structure 11 includes an elastic arm and a clamping block, and the second clamping structure 22 is a clamping hole, when the battery body 21 is inserted into the receiving cavity 10 along the first direction x, the elastic arm is deformed along the second direction y due to the interference of the battery body 21 on the clamping block, and then the clamping block pushes the spring piece 31 to deform, so that the first conductive contact 33 contacts the second conductive contact 34, the circuit is turned on, and the current detection unit 36 ​​detects the current; when the battery body 21 is inserted into the preset locking position along the first direction x, the clamping block is engaged with the clamping hole, the elastic arm resumes its deformation, and the spring piece 31 resumes its deformation accordingly, the first conductive contact 33 is separated from the second conductive contact 34, the circuit is disconnected, and the current detection unit 36 ​​cannot detect the current.

[0052] In some embodiments, a protrusion 311 is provided at the other end of the spring piece 31 . The protrusion 311 protrudes toward the second engaging structure 22 . The protrusion 311 shortens the distance between the spring piece 31 and the second engaging structure 22 , thereby increasing the sensitivity of the detection component 3 .

[0053] In some embodiments, see Figures 5 to 7 The detection assembly 3 includes a contact switch 38, which is disposed on the battery body 21. The contact switch 38 includes a rod 381, a movable component 382, ​​and a switch body 383. The switch body 383 is fixed to the battery body 21 and is configured to output a signal when the movable component 382 moves. One end of the movable component 382 extends from the outer surface of the switch body 383, and the other end of the movable component 382 is disposed within the switch body 383. The movable component 382 is elastically movable along the second direction y. One end of the rod 381 is fixed to the switch body 383, and one end of the rod 381 abuts against the movable component 382. When the battery body 21 is inserted into the receiving cavity 10 along the first direction x, one of the first clamping structure 11 and the second clamping structure 22 with elastic deformation performance is deformed along the second direction y and abuts against the rod body 381, pushing the rod body 381 and thereby driving the movable part 382 to move toward the switch body 383, and the switch body 383 outputs a first signal. When the battery body 21 is inserted into the preset locking position along the first direction x, the first clamping structure 11 is engaged with the second clamping structure 22, and the one of the first clamping structure 11 and the second clamping structure 22 with elastic performance recovers its deformation. , and separates from the rod body 381, the rod body 381 is not interfered with, and then the movable part 382 elastically resets, the movable part 382 drives the rod body 381 to move along the second direction y, and the switch body 383 outputs a second signal, wherein the first signal is different from the second signal. Conversely, the signal of the contact switch 38 can be used to determine whether the first clamping structure 11 and the second clamping structure 22 have been clamped in place, that is: when the contact switch 38 first outputs the first signal and then outputs the second signal, it can be considered that the first clamping structure 11 and the second clamping structure 22 have been clamped in place.

[0054] In some embodiments, an arc-shaped protrusion is provided at the other end of the rod body 381, which protrudes toward the direction of the one of the second clamping structure 22 and the first clamping structure 11 having elastic deformation properties. The arc-shaped protrusion shortens the distance between the rod body 381 and the one of the second clamping structure 22 and the first clamping structure 11 having elastic deformation properties, which is beneficial to increase the sensitivity of the contact switch 38.

[0055] In some embodiments, see Figures 8 to 10 The detection assembly 3 includes a magnetic member 39 and a Hall sensor 310. The Hall sensor 310 is fixed to the battery body 21. The magnetic member 39 is disposed on one of the first and second clamping structures 11 and 22 with elastic properties. When the battery body 21 is inserted into the receiving cavity 10 along the first direction x, the elastically deformable one of the first and second clamping structures 11 and 22 deforms along the second direction y, pushing the magnetic member 39 toward the Hall sensor 310, increasing the magnetic field strength. When the battery body 21 is inserted into the predetermined locking position along the first direction x, the first and second clamping structures 11 and 22 engage, and the elastically deformable one of the first and second clamping structures 11 and 22 recovers its deformation, causing the magnetic member 39 to move away from the Hall sensor 310, decreasing the magnetic field strength. Conversely, when the Hall sensor 310 senses that the magnetic field strength first increases and then decreases, it determines that the first and second clamping structures 11 and 22 are engaged, thereby confirming that the battery body 21 is securely locked to the battery compartment 1.

[0056] It is understood that in the embodiment of the present application, the first engaging structure 11 and the second engaging structure 22 comprise only one set of engaging holes, engaging blocks, and elastic arms, i.e., a single-buckle arrangement. Compared to a double-buckle or multi-buckle arrangement, the spatial fit between the battery compartment 1 and the battery assembly 2 of the power supply module 1000 of the present application is more compact. In addition, the detection component 3 is disposed within the battery body 21. To detect whether the battery assembly 2 is locked, only the internal structure of the battery body 21 needs to be modified, without the need to add additional structural components between the battery compartment 1 and the battery assembly 2, which facilitates the reduction of the size of the power supply module 1000.

[0057] It is worth noting that the time interval between the initial deformation and the recovery deformation of the elastically deformable one of the first clamping structure 11 and the second clamping structure 22 should not be too long and can be limited according to actual conditions, for example, the time interval is limited to 3 seconds, 5 seconds, etc.

[0058] In addition, since when the battery body 21 is pulled out from the accommodating cavity 10, the one with elastic deformation among the first clamping structure 11 and the second clamping structure 22 also undergoes preliminary deformation and then recovers its deformation, in order to reduce false alarms, a voltage detection unit connected to the elastic conductive member 12 can be added. When the detection component 23 detects that the one with elastic deformation among the first clamping structure 11 and the second clamping structure 22 also undergoes preliminary deformation and then recovers its deformation, it is determined whether the voltage detection unit detects voltage. If so, it is determined that the battery body 21 is locked in the battery compartment 1.

[0059] In an embodiment of the present invention, a power supply module 1000 is provided. The power supply module 1000 includes a battery compartment 1 and a battery assembly 2. The battery compartment 1 has a receiving cavity 10 and a first engaging structure 11. The battery assembly 2 includes a battery body 21 and a second engaging structure 22. The second engaging structure 22 is provided on the battery body 21. The battery body 21 is also provided with a detection assembly 3. When the battery body 21 is inserted into the receiving cavity 10 along a first direction x, one of the first engaging structure 11 and the second engaging structure 22 that has elastic deformation properties deforms along a second direction y. When the battery body 21 is inserted along the first direction x to a predetermined locking position, the one of the first engaging structure 11 and the second engaging structure 22 that has elastic deformation properties recovers, and the second engaging structure 22 engages with the first engaging structure 11. During this process, the detection assembly 3 determines that the first engaging structure 11 and the second engaging structure 22 are engaged when it detects that either the first engaging structure 11 or the second engaging structure 22 first elastically deforms and then recovers, thereby confirming that the battery body 21 is locked.

[0060] This application also provides an embodiment of the unmanned aerial vehicle 2000, see Figure 11The unmanned aerial vehicle 2000 includes an unmanned aerial vehicle body 3000 and the above-mentioned power supply module 1000. The power supply module 1000 is arranged on the unmanned aerial vehicle body 3000. The power supply module 1000 is electrically connected to the unmanned aerial vehicle body 3000 through an elastic conductive member 12. The power supply module 1000 is also provided with a communication interface for unidirectional or bidirectional communication with the unmanned aerial vehicle body 3000. The communication interface can be an elastic conductive member 12 provided in the battery compartment 1. For the structure and function of the power supply module 1000, please refer to the above-mentioned embodiment and will not be repeated here. When the detection component 3 detects that the battery assembly 2 has been locked in the battery compartment 1, it sends a battery locking signal to the unmanned aerial vehicle body 3000. The unmanned aerial vehicle body 3000 determines that the flight start-up conditions are met based on the battery locking signal and then starts the blades. Otherwise, it does not start. This can avoid the situation where when the battery body 21 is inserted into the receiving cavity 10 but the battery body 21 has not slid into the preset locking position, the battery body 21 is connected to the elastic conductive member 12, and the elastic conductive member 12 directly supplies power to the unmanned aerial vehicle body 3000. This situation may cause the vibration generated by the rotation of the blades of the unmanned aerial vehicle 2000 when the unmanned aerial vehicle body 3000 starts to easily cause the battery body 21 to loosen and fall, causing a crash, thereby ensuring the startup safety of the unmanned aerial vehicle.

[0061] This application also provides an embodiment of the detection method performed by the above-mentioned battery assembly 2, please refer to Figure 12 , the method comprises the following steps:

[0062] Step 101, obtaining the detection result of the detection component 3;

[0063] The detection result may be a current detection result of the current detection unit 36 ​​, a signal output by the contact switch 38 , or a magnetic field detection result of the Hall sensor 310 .

[0064] Step 102: Determine, based on the detection result, whether one of the first engaging structure 11 and the second engaging structure 22 that is elastically deformable first undergoes elastic deformation and then recovers its deformation;

[0065] Whether one of the first clamping structure 11 and the second clamping structure 22 that has elastic deformation first undergoes elastic deformation and then recovers its deformation is specifically as follows: when the current detection unit 36 ​​detects that current flows through the second conductive contact 34 and then disappears, it is determined that one of the first clamping structure 11 and the second clamping structure 22 that has elastic deformation first undergoes elastic deformation and then recovers its deformation;

[0066] The signal of the contact switch 38 is used to determine whether one of the first clamping structure 11 and the second clamping structure 22 that has elastic deformation first undergoes elastic deformation and then recovers the deformation. Specifically, when the contact switch 38 first outputs the first signal and then outputs the second signal, it is determined that the current detection one of the first clamping structure 11 and the second clamping structure 22 that has elastic deformation first undergoes elastic deformation and then recovers the deformation.

[0067] The magnetic field is used to detect whether one of the first clamping structure 11 and the second clamping structure 22 with elastic deformation first undergoes elastic deformation and then recovers the deformation. Specifically, when the Hall sensor 310 senses that the intensity of the magnetic field first increases and then decreases, it is determined that the current detection first clamping structure 11 and the second clamping structure 22 with elastic deformation first undergoes elastic deformation and then recovers the deformation.

[0068] In step 103, if yes, it is determined that the first engaging structure 11 and the second engaging structure 22 are engaged, and the battery assembly 2 in the power supply module 1000 is locked. Otherwise, it is determined that the first engaging structure 11 and the second engaging structure 22 are not engaged, and the battery assembly 2 in the power supply module 1000 is not locked, and an alarm is issued to remind the user that the battery assembly 2 is not locked. When the power supply module 1000 is applied to the unmanned aerial vehicle 2000, in one embodiment, if the detection component 3 determines that the battery assembly 2 is locked, it sends a battery lock signal to the unmanned aerial vehicle body 3000, and the unmanned aerial vehicle body 3000 can determine that the start-up flight conditions are met based on the battery lock signal. If the detection component 3 determines that the battery assembly 2 is not locked, it sends a battery unlock signal to the unmanned aerial vehicle body 3000, and the unmanned aerial vehicle body 3000 can determine that the start-up flight conditions are not met based on the battery unlock signal, and then does not execute the user's flight command, maintaining a non-flying state.

[0069] For further information, see Figure 13, since when the battery body 21 is pulled out of the accommodating cavity 10, the one with elastic deformation in the first clamping structure 11 and the second clamping structure 22 is also deformed first and then recovers the deformation, in order to reduce false alarms, it is also possible to determine whether the battery assembly 2 is located in the battery compartment 1, then step 103 is specifically: when it is determined that the one with elastic deformation performance in the first clamping structure 11 and the second clamping structure 22 is elastically deformed first and then recovers the deformation, it is determined whether the elastic conductive member 12 is in contact with the electrode of the battery body; if the elastic conductive member 12 is in contact with the electrode of the battery body, it is determined that the first clamping structure 11 and the second clamping structure 22 are engaged, and the battery assembly 2 in the power supply module 1000 is locked; otherwise, it is determined that the battery assembly 2 in the power supply module 1000 is detached from the battery compartment 1. When the power supply module 1000 is applied to the unmanned aerial vehicle 2000, in one embodiment, if the detection component 3 determines that the battery assembly 2 is locked, it sends a battery locking signal to the unmanned aerial vehicle body 3000, and the unmanned aerial vehicle 3000 can determine that the flight start conditions are met based on the battery locking signal; if the detection component 3 determines that the battery assembly 2 is detached from the battery compartment 1, the electrical connection between the battery assembly 2 and the unmanned aerial vehicle body 3000 is disconnected, and the unmanned aerial vehicle body 3000 is powered off and not started.

[0070] Among them, if the elastic conductive member 12 is in contact with the electrode of the battery body, it means that the battery body has not left the receiving cavity 10. On the contrary, it proves that the one with elastic deformation in the first clamping structure 11 and the second clamping structure 22 is deformed first, and then the recovery of the deformation is generated when the battery body is inserted into the receiving cavity 10, rather than when it is removed.

[0071] In some embodiments, see Figure 14 The specific steps for determining whether the electrodes of the elastic conductive member 12 and the battery body 21 are in contact in step 103 are as follows:

[0072] Step 1032, obtaining the voltage of the elastic conductive member 12;

[0073] Step 1033, determining whether the voltage is greater than a preset voltage;

[0074] Step 1034 : If yes, determine whether the elastic conductive member 12 is in contact with the electrode of the battery body 21 .

[0075] When the battery body is in contact with the elastic conductive member 12, the voltage of the elastic conductive member 12 is the voltage of the battery body. When the battery body is separated from the elastic conductive member 12, the voltage of the elastic conductive member 12 is zero. Conversely, the voltage of the elastic conductive member 12 can be used to determine whether the battery body and the elastic conductive member 12 are in contact.

[0076] In an embodiment of the present invention, the detection method performed by the battery assembly 2 includes steps 101-103. Step 101 is to obtain the detection result of the detection component of the power supply module 1000; step 102 is to determine, based on the detection result, whether one of the first clamping structure 11 and the second clamping structure of the power supply module 1000 with elastic deformation performance first undergoes elastic deformation and then recovers the deformation; step 103 is to determine that if so, the first clamping structure 11 and the second clamping structure 22 of the power supply module 1000 are engaged, and the battery assembly 2 in the power supply module 1000 is locked. This detection method can detect whether the battery assembly 2 is locked, thereby reducing the risk caused by unclear locking status of the battery assembly 2.

[0077] It should be noted that the preferred embodiments of the present invention are given in the specification and drawings of the present invention. However, the present invention can be implemented in many different forms and is not limited to the embodiments described in this specification. These embodiments are not intended to be additional limitations on the content of the present invention. The purpose of providing these embodiments is to make the understanding of the disclosure of the present invention more thorough and comprehensive. In addition, the above-mentioned technical features can be combined with each other to form various embodiments not listed above, which are all considered to be within the scope of the description of the present invention. Furthermore, it is obvious to those skilled in the art that improvements or changes can be made based on the above description, and all such improvements and changes should fall within the scope of protection of the claims attached to the present invention.

Claims

1. A battery assembly, applied to a power supply module of an unmanned aerial vehicle, wherein the power supply module comprises a battery compartment, wherein the battery compartment is provided with a receiving cavity and a first clamping structure, wherein: The battery assembly includes a battery body and a second clamping structure, the second clamping structure being disposed on the battery body, one of the first clamping structure and the second clamping structure having elastic deformation properties, and when the battery body is inserted into the receiving cavity along a first direction, the one of the first clamping structure and the second clamping structure having elastic deformation properties deforms along a second direction, and when the battery body is inserted into a preset locking position along the first direction, the one of the first clamping structure and the second clamping structure having elastic deformation properties recovers the deformation, and the second clamping structure is clamped to the first clamping structure, wherein the first direction and the second direction are perpendicular to each other; The battery assembly also includes a detection assembly, which is provided on the battery body. The detection assembly is used to detect the deformation state of one of the first clamping structure and the second clamping structure that has elastic deformation properties. When the detection assembly detects that one of the first clamping structure and the second clamping structure that has elastic deformation properties first undergoes elastic deformation and then recovers the deformation, it is determined that the first clamping structure and the second clamping structure are engaged.

2. The battery assembly according to claim 1, wherein: The first clamping structure is a clamping hole provided on the inner wall of the battery compartment; The second clamping structure has elastic deformation performance, and the second clamping structure includes an elastic arm and a clamping block, one end of the elastic arm is fixed to the battery body, and the clamping block is fixed to the other end of the elastic arm; When the battery body is inserted into the receiving cavity along the first direction, the elastic arm is deformed due to the interference of the battery compartment on the card block. When the battery body is inserted into the preset locking position along the first direction, the card block is engaged with the card hole, and the elastic arm recovers its deformation.

3. The battery assembly according to claim 1, wherein: The second clamping structure is a clamping hole provided on the battery body; The first clamping structure has elastic deformation performance, and the first clamping structure includes an elastic arm and a clamping block, one end of the elastic arm is fixed to the battery compartment, and the clamping block is fixed to the other end of the elastic arm; When the battery body is inserted into the receiving cavity along the first direction, the elastic arm is deformed due to the interference of the battery on the card block. When the battery body is inserted into the preset locking position along the first direction, the card block is engaged with the card hole, and the elastic arm recovers its deformation.

4. The battery assembly according to claim 2 or 3, characterized in that , The clamping block is provided with a guiding inclined surface, and along the first direction, the vertical distance between the guiding inclined surface and the elastic arm gradually decreases.

5. The battery assembly according to claim 1, characterized in that , The detection assembly includes a detection power supply, a spring, a stator, a first conductive contact, a second conductive contact, and a current detection unit, wherein one end of the spring is fixed to the battery body, the first conductive contact is fixed to the other end of the spring, one end of the stator is fixed to the battery body, and the second conductive contact is fixed to the other end of the stator. The detection power supply is electrically connected to the first conductive contact, the second conductive contact is grounded, and the current detection unit is connected to the second conductive contact. When the battery body is inserted into the receiving cavity along a first direction, one of the first clamping structure and the second clamping structure having elastic deformation properties is deformed along a second direction and pushes the spring to deform, so that the first conductive contact and the second conductive contact are in contact; When the battery body is inserted into a preset locking position along a first direction, one of the first clamping structure and the second clamping structure having elastic deformation properties recovers its deformation, and the spring sheet recovers its deformation, and the first conductive contact and the second conductive contact are separated; The current detection unit is used to detect the current of the second conductive contact, and when it is detected that the current passes through the second conductive contact and then disappears, it is determined that the first clamping structure and the second clamping structure are clamped.

6. The battery assembly according to claim 5, characterized in that The detection component further includes a resistor, and the second conductive contact is grounded via the resistor.

7. The battery assembly according to claim 1, wherein: The detection component includes a contact switch. When the battery body is inserted into the accommodating cavity along a first direction, one of the first clamping structure and the second clamping structure having elastic deformation properties is deformed along the second direction and abuts against the contact switch. When the battery body is inserted into a preset locking position along the first direction, one of the first clamping structure and the second clamping structure having elastic deformation properties recovers its deformation and is separated from the contact switch.

8. The battery assembly according to claim 1, wherein: The detection assembly includes a magnetic member and a Hall sensor, the Hall sensor is fixed to the battery body, and the magnetic member is close to the second clamping structure; When the battery body is inserted into the receiving cavity along the first direction, one of the first and second clip structures having elastic deformation properties deforms along the second direction and pushes the magnetic member toward the Hall sensor; when the battery body is inserted into a preset locking position along the first direction, one of the first and second clip structures having elastic deformation properties recovers its deformation, and the magnetic member moves away from the Hall sensor; The Hall sensor is used to sense the intensity of the magnetic field, and when the intensity of the sensed magnetic field increases first and then decreases, it is determined that the first clamping structure and the second clamping structure are engaged.

9. An unmanned aerial vehicle, characterized in that: It comprises a power supply module, which includes a battery compartment and a battery assembly as described in any one of claims 1-8, and the battery compartment is provided with a receiving cavity and a first clamping structure.

10. A detection method, performed by the battery assembly according to any one of claims 1 to 8, characterized in that: The method comprises: Obtaining a detection result of a detection component of the power supply module; According to the detection result, determining whether one of the first clamping structure and the second clamping structure of the power supply module that has elastic deformation performance first undergoes elastic deformation and then recovers the deformation; If so, it is determined that the first clamping structure and the second clamping structure of the power supply module are engaged, and the battery assembly in the power supply module is locked.

11. The method according to claim 10, characterized in that An elastic conductive member is provided in the battery compartment of the power supply module, and when the battery body of the power supply module is inserted into the receiving cavity, the elastic conductive member maintains contact with the electrode of the battery body; The step of determining that the first engaging structure and the second engaging structure are engaged and the battery assembly in the power supply module is locked further includes: When it is determined that one of the first clamping structure and the second clamping structure having elastic deformation performance first undergoes elastic deformation and then recovers its deformation, determining whether the elastic conductive member is in contact with the electrode of the battery body; If the elastic conductive member contacts the electrode of the battery body, it is determined that the first clamping structure and the second clamping structure are engaged, and the battery assembly in the power supply module is locked.

12. The method according to claim 11, characterized in that The step of determining whether the elastic conductive member is in contact with the electrode of the battery body further includes: obtaining a voltage of the elastic conductive member; Determining whether the voltage is greater than a preset voltage; If so, it is determined that the elastic conductive member is in contact with the electrode of the battery body.

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