Automatic battery falling-off device and electric automobile
By designing an automatic battery falloff device in an electric vehicle, using the detection device to monitor abnormal battery packs and automatically disengage through the limiting parts, the risk of fire or explosion caused by abnormal battery packs in an electric vehicle is solved, and safety is improved.
Patent Information
- Application Number
- CN202421562985.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-03
- Publication Date
- 2025-03-25
- Estimated Expiration
- 2034-07-03
Smart Images
Figure CN222663193U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of electric vehicles, in particular to an automatic battery shedding device and an electric vehicle. Background Art
[0002] Existing electric vehicles usually include battery packs. As the core component of electric vehicles, battery packs not only determine their endurance and performance, but are also directly related to the safety of the entire vehicle. However, when the battery pack of an electric vehicle has extreme abnormalities, such as abnormal deformation or abnormally high temperature, the battery pack may catch fire or explode, which greatly increases the risk of electric vehicles. Therefore, how to block the risk when the battery pack of an electric vehicle has extreme abnormalities in the early stage has become a difficult problem that needs to be solved in the field of electric vehicle safety. Utility Model Content
[0003] The main purpose of the utility model is to provide a battery automatic shedding device and an electric vehicle, which aims to promptly shear off the battery pack from the electric vehicle when an abnormality occurs in the battery pack, so as to improve the safety of the electric vehicle.
[0004] In order to achieve the above-mentioned purpose, the battery automatic shedding device proposed in the utility model comprises:
[0005] A battery body, comprising a shell, a battery pack and a detection device, wherein the battery pack is arranged in the shell, and the detection device is arranged in the shell and is used to detect at least one parameter of the temperature of the battery pack and the deformation of the battery pack;
[0006] a support member, used for being installed on the electric vehicle, the support member being arranged on a side of the housing and being arranged opposite to the housing, one of the support member and the housing being provided with a mounting portion, and the other being provided with a limiting portion; and
[0007] A limiter, which is disposed on the mounting portion and is detachably disposed from the limiter, the limiter is electrically connected to the detection device, and has a power-on state and a power-off state;
[0008] In the power-off state, the limiting member is plugged into the limiting portion to limit the separation of the battery body and the support member;
[0009] In the power-on state, the limiting member is electrically driven to separate from the limiting portion, and the battery body automatically falls off from the supporting member.
[0010] In one embodiment, the shell includes an outer shell and a fixing member, the battery pack is arranged in the outer shell, the fixing member is arranged outside the outer shell and connected to the outer shell, the fixing member and the supporting member are arranged opposite to each other, the mounting portion is provided on one of the fixing member and the supporting member, and the limiting portion is provided on the other, and the fixing member is provided with a harness groove for installing the cable of the detection device.
[0011] In one embodiment, the detection device includes a first sensor, a first signal receiver and an electric control box, wherein the first sensor and the first signal receiver are arranged on the outer shell and located at opposite ends of the battery pack, and the electric control box is arranged outside the outer shell. The first sensor and the first signal receiver are electrically connected to the electric control box through a cable, and at least part of the cable is arranged in the wiring harness groove. The first signal receiver is used to receive a first sensing signal transmitted by the first sensor and transmit it to the electric control box.
[0012] In one embodiment, the detection device also includes a second sensor and a second signal receiver, the second sensor and the second signal receiver are arranged on the outer shell and located at opposite ends of the battery pack, the second sensor and the second signal receiver are both electrically connected to the electric control box via a cable, the second signal receiver is used to receive a second sensing signal transmitted by the second sensor and transmit it to the electric control box, and the first sensor and the second sensor are arranged on opposite sides of the battery pack along its thickness direction.
[0013] In one embodiment, the battery pack has a first surface and a second surface arranged opposite to each other along a thickness direction thereof, and the first sensor and the first signal receiver are at least partially located above the first surface for detecting deformation of the first surface; the second sensor and the second signal receiver are at least partially located below the second surface for detecting deformation of the second surface.
[0014] In one embodiment, the housing further comprises a first support rod, which is disposed in the housing and above the battery pack; the detection device further comprises a first temperature sensor, a first mounting groove is disposed on a side of the first support rod facing the battery pack, the first temperature sensor is disposed in the first mounting groove and is electrically connected to the electric control box;
[0015] And / or, the outer shell is provided with a plurality of the first sensors and a plurality of the first signal receivers arranged at intervals along the length direction of the first support rod, the plurality of the first sensors are arranged in a one-to-one correspondence with the plurality of the first signal receivers, the first support rod is provided with a plurality of first via holes for allowing the first sensing signals to pass through, and the plurality of the first via holes are arranged in a one-to-one correspondence with the plurality of the first signal receivers.
[0016] In one embodiment, the housing further comprises a second support rod, which is disposed in the housing and below the battery pack; the detection device further comprises a second temperature sensor, a second mounting groove is disposed on a side of the second support rod facing the battery pack, and the second temperature sensor is disposed in the second mounting groove and is electrically connected to the electric control box;
[0017] And / or, the outer shell is provided with a plurality of second sensors and a plurality of second signal receivers arranged at intervals along the length direction of the second support rod, the plurality of second sensors are arranged in a one-to-one correspondence with the plurality of second signal receivers, the second support rod is provided with a plurality of second vias for allowing the second sensing signal to pass through, and the plurality of second vias are arranged in a one-to-one correspondence with the plurality of second signal receivers.
[0018] In one embodiment, the shell further includes a wire protection member, which is disposed at a corner outside the outer shell and connected to the outer shell, and a wire protection channel is provided on the wire protection member, and the wire protection channel is connected to the wiring harness groove. The wire protection member and the fixing member are surrounded by the outer peripheral side of the outer shell to form a ring, and the wire protection channel is used to centrally fix the cables of the detection device.
[0019] In one embodiment, the mounting portion is provided on the support member, and the limiting member includes a limiting rod, an electromagnetic assembly, an elastic member and a limiting plate. The electromagnetic assembly is provided on the mounting portion, and the electromagnetic assembly has a magnetic field cavity for generating a magnetic field. The limiting rod is penetrated through the magnetic field cavity, and one end of the limiting rod extends out from the magnetic field cavity and passes through the support member and is detachable from the limiting portion. The limiting plate is fixed at one end of the limiting rod away from the electromagnetic assembly. The elastic member is sleeved on the limiting rod, one end of the elastic member abuts against the limiting plate, and the other end of the elastic member abuts against the support member, and the electromagnetic assembly is electrically connected to the detection device.
[0020] The utility model also provides an electric vehicle, which comprises the automatic battery shedding device as described above.
[0021] The battery automatic shedding device of the utility model comprises a battery body, a support and a limiting member. The battery body comprises a shell, a battery pack and a detection device. The battery pack is arranged in the shell to supply power to the electric vehicle. The detection device is arranged in the shell and is used to detect at least one parameter of the temperature of the battery pack and the deformation of the battery pack. The support is used to be installed on the electric vehicle. By setting the limiting member, the battery body can be separated from the support. The limiting member has a power-on state and a power-off state. In the power-off state, the limiting member is limitedly plugged into the limiting part to limit the separation of the battery body from the support; in the power-on state, The limiter is electrically driven to separate from the limiter, and the battery body automatically falls off from the support. In this way, when the detection device does not detect an abnormality in the battery pack, the detection device cuts off the power to the limiter, and the limiter connects the battery body to the support, so that the battery body cannot be separated from the support; when the detection device detects an abnormality in the battery pack, the detection device energizes the limiter, and the limiter separates the battery body from the support, so that the battery body automatically falls off from the support under the action of gravity, so as to avoid the battery pack catching fire or exploding and threatening the safety of the vehicle and passengers. It can be seen that the technical solution of the present application can promptly remove the battery pack from the electric vehicle after an abnormality occurs in the battery pack, so as to ensure the safety of the driver and passengers and minimize property losses, thereby improving the safety of the electric vehicle. BRIEF DESCRIPTION OF THE DRAWINGS
[0022] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.
[0023] Figure 1 A schematic structural diagram of an embodiment of an automatic battery removal device provided by the utility model;
[0024] Figure 2 for Figure 1 An exploded view of the structure in ;
[0025] Figure 3 for Figure 2 The enlarged view of point A in the middle;
[0026] Figure 4 for Figure 1 A cross-sectional view of the structure in FIG.
[0027] Figure 5 for Figure 4 The enlarged view of point B in the middle;
[0028] Figure 6 for Figure 1 An exploded view of some of the structures in the
[0029] Figure 7 for Figure 6 Enlarged view of point C in the middle;
[0030] Figure 8 for Figure 1 A cross-sectional view of the structure in FIG.
[0031] Fig. 9 for Figure 8 The enlarged view of point D in the middle;
[0032] Fig.10 for Figure 1 An exploded view of some of the structures in the
[0033] Fig.11 for Fig.10 Enlarged view of point E in the middle;
[0034] Fig.12 for Figure 1 Exploded view of the electrical control box in .
[0035] Description of Figure Numbers:
[0036] 10. Automatic battery removal device;
[0037] 100, battery body; 110, shell; 111, shell; 112, fixing member; 1121, harness groove; 113, first support rod; 1131, first mounting groove; 1132, first through hole; 114, second support rod; 1141, second mounting groove; 1142, second through hole; 115, wire guard; 1151, wire guard channel; 120, battery pack; 121, first surface; 122, second surface; 130, detection device ; 131, first sensor; 132, first signal receiver; 133, electric control box; 1331, box body; 1332, rechargeable battery; 1333, control board; 1334, first plug; 1335, second plug; 1336, first wire hole; 1337, second wire hole; 134, second sensor; 135, second signal receiver; 136, first temperature sensor; 137, second temperature sensor; 140, limiter;
[0038] 200, support member; 210, mounting portion;
[0039] 300, limit member; 310, limit rod; 320, electromagnetic assembly; 330, elastic member; 340, limit plate.
[0040] The realization of the purpose, functional features and advantages of the utility model will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION
[0041] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0042] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back...), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture. If the specific posture changes, the directional indications will also change accordingly.
[0043] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the utility model, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features limited to "first" and "second" may explicitly or implicitly include at least one of the features. In addition, if "and / or" or "and / or" appears in the full text, its meaning includes three parallel solutions. Taking "A and / or B" as an example, it includes solution A, solution B, or solutions that satisfy both A and B. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the utility model.
[0044] Existing electric vehicles usually include battery packs. As the core component of electric vehicles, battery packs not only determine their endurance and performance, but are also directly related to the safety of the entire vehicle. However, when the battery pack of an electric vehicle has extreme abnormalities, such as abnormal deformation or abnormally high temperature, the battery pack may catch fire or explode, which greatly increases the risk of electric vehicles. Therefore, how to block the risk when the battery pack of an electric vehicle has extreme abnormalities in the early stage has become a difficult problem that needs to be solved in the field of electric vehicle safety.
[0045] In order to solve the above problems, the present application proposes an automatic battery detachment device, which can promptly detach the battery pack from the electric vehicle after an abnormality occurs in the battery pack, thereby improving the safety of the electric vehicle.
[0046] See also Figures 1 to 12In an embodiment of the present application, a battery automatic shedding device 10 is applied to an electric vehicle. The battery automatic shedding device 10 includes a battery body 100, a support member 200 and a stop member 300. The battery body 100 includes a shell 110, a battery pack 120 and a detection device 130. The battery pack 120 is arranged in the shell 110. The detection device 130 is arranged in the shell 110 and is used to detect at least one parameter of the temperature of the battery pack 120 and the deformation of the battery pack; the support member 200 is used to be installed on the electric vehicle. The support member 200 is arranged on the side of the shell 110 and is arranged opposite to the shell 110. The support member 200 0 and the housing 110 are provided with a mounting portion 210, and the other is provided with a limiting portion 140; a limiting member 300 is provided on the mounting portion 210 and is detachably provided with the limiting portion 140, the limiting member 300 is electrically connected to the detection device 130, and the limiting member 300 has a power-on state and a power-off state; in the power-off state, the limiting member 300 is limitedly plugged with the limiting portion 140 to limit the separation of the battery body 100 from the support member 200; in the power-on state, the limiting member 300 is electrically driven to separate from the limiting portion 140, and the battery body 100 automatically falls off from the support member 200.
[0047] It is understandable that the battery pack 120 is disposed in the housing 110, and the abnormality of the battery pack 120 detected by the detection device 130 is an extreme abnormality, which can easily cause the battery pack 120 to catch fire or explode. The extreme abnormality can be overheating, expansion, smoking, leakage, etc. of the battery pack 120, which is not specifically limited here. The detection device 130 can determine whether the battery pack 120 is in an abnormal state by detecting the temperature and deformation of the battery pack 120, the smoke in the housing 110, the light intensity in the housing 110, etc. Specifically in this solution, the detection device 130 is used to detect at least one parameter of the temperature of the battery pack 120 and the deformation of the battery pack 120, so as to determine whether the battery pack 120 is in an abnormal state.
[0048] Furthermore, the detection device 130 is electrically connected to the limiter 300, and the limiter 300 can be installed on the housing 110 or on the support 200. The support 200 is used to be installed on the electric vehicle, and the support 200 can be installed on the bottom of the body of the electric vehicle, which is not specifically limited here. The limiter 300 is an electric control structure, which is not specifically limited here. The limiter 300 has a power-off state and a power-on state, and can be plugged in or separated from the limiter 140 by powering on or off the limiter 300. When the limiting part 140 is in the power-off state, the limiting member 300 is limitedly plugged with the limiting part 140, and the limiting part 140 connects the battery body 100 with the support member 200, so that the battery body 100 and the support member 200 cannot be separated; when the limiting member 300 is in the power-on state, the limiting member 300 is electrically driven and moves in a direction away from the limiting part 140 and separates from the limiting part 140, and the limiting member 300 releases the cooperation with the limiting part 140, so that the battery body 100 and the support member 200 can be separated from each other, and the battery body 100 falls off from the support member 200 under the action of gravity, thereby separating from the electric vehicle, which is conducive to improving the safety of the electric vehicle. There can be multiple limiting members 300, and multiple limiting members 300 are arranged at intervals around the circumference of the shell 111, so that the weight of the battery pack 120 can be distributed to multiple limiting members 300 to improve the stability of the limiting members 300.
[0049] Furthermore, the mounting portion 210 may be a mounting groove or a mounting hole; the limiting portion 140 may be a limiting groove or a limiting hole, which is not specifically limited here. When the support member 200 is provided with a mounting portion 210, the housing 110 is provided with a limiting portion 140, and the limiting member 300 is provided on the support member 200 and can be separated from the limiting portion 140 on the housing 110; when the housing 110 is provided with a mounting portion 210, the support member 200 is provided with a limiting portion 140, and the limiting member 300 is provided on the housing 110 and can be separated from the limiting portion 140 on the support member 200.
[0050] The battery automatic shedding device 10 of the utility model comprises a battery main body 100, a support member 200 and a limit member 300. The battery main body 100 comprises a shell 110, a battery pack 120 and a detection device 130. The battery pack 120 is arranged in the shell 110 to supply power to the electric vehicle. The detection device 130 is arranged in the shell 110 and is used to detect at least one parameter of the temperature of the battery pack 120 and the deformation of the battery pack. The support member 200 is used to be installed on the electric vehicle. By setting the limit member 300, the battery main body 100 can be separated from the support member 200. The limit member 300 has a power-on state and a power-off state. In the power-off state, the limit member 300 is limitedly plugged into the limit portion 140 to limit the separation of the battery main body 100 from the support member 200; in the power-on .... The part 300 is electrically driven to separate from the limiting part 140, and the battery body 100 automatically falls off from the supporting part 200. The arrangement is such that when the detection device 130 does not detect that the battery pack 120 is abnormal, the detection device 130 cuts off the power to the limiting part 300, and the limiting part 300 connects the battery body 100 with the supporting part 200, so that the battery body 100 cannot be separated from the supporting part 200; when the detection device 130 detects that the battery pack 120 is abnormal, the detection device 130 energizes the limiting part 300, and the limiting part 300 separates the battery body 100 from the supporting part 200, so that the battery body 100 automatically falls off from the supporting part 200 under the action of gravity, so as to avoid the battery pack 120 catching fire or exploding and threatening the safety of the vehicle and passengers. It can be seen that the technical solution of the present application can promptly remove the battery pack 120 from the electric vehicle after an abnormality occurs in the battery pack 120, so as to ensure the safety of the driver and passengers and minimize property losses, thereby improving the safety of the electric vehicle.
[0051] See also Figures 1 to 3 In one embodiment, the shell 110 includes an outer shell 111 and a fixing member 112, the battery pack 120 is arranged in the outer shell 111, the fixing member 112 is arranged outside the outer shell 111 and connected to the outer shell 111, the fixing member 112 is arranged opposite to the supporting member 200, one of the fixing member 112 and the supporting member 200 is provided with the mounting portion 210, and the other is provided with the limiting portion 140, and the fixing member 112 is provided with a harness groove 1121 for installing the cable of the detection device 130.
[0052] It is understandable that the fixing member 112 is disposed on the outer side wall of the housing 111, which can strengthen the structural strength of the housing 111. The fixing member 112 is disposed in a ring shape around the outer peripheral wall of the housing 111, thereby strengthening the structural strength of the housing 111 as a whole. The mounting portion 210 is disposed on one of the fixing member 112 and the supporting member 200, and the position limiting portion 140 is disposed on the other, so that it is convenient to process on the fixing member 112. Compared with processing the mounting portion 210 or the position limiting portion 140 on the housing 111, processing on the fixing member 112 is conducive to reducing the difficulty of processing.
[0053] In addition, the fixing member 112 is provided with a harness groove 1121, which is used for installing the cables of the detection device 130, which not only makes the cable routing regular, but also improves the utilization rate of the fixing member 112. The harness groove 1121 can be provided on the side of the fixing member 112 facing the housing 111, so that the cables will not be exposed outside the housing 110, thereby strengthening the protection of the cables and improving the stability of the battery automatic shedding device 10.
[0054] See also Figures 6 to 9 , Fig.12 In one embodiment, the detection device 130 includes a first sensor 131, a first signal receiver 132 and an electric control box 133. The first sensor 131 and the first signal receiver 132 are arranged on the shell 111 and located at opposite ends of the battery pack 120. The electric control box 133 is arranged outside the shell 111. The first sensor 131 and the first signal receiver 132 are electrically connected to the electric control box 133 through a cable. At least part of the cable is arranged in the wiring harness groove 1121. The first signal receiver 132 is used to receive the first sensing signal transmitted by the first sensor 131 and transmit it to the electric control box 133.
[0055] It is understandable that the first sensor 131 can be a light sensor, an infrared sensor, or a smoke sensor, etc., which is not specifically limited here. Specifically in this solution, the first sensor 131 is a light sensor, which is used to detect the deformation of the battery pack 120. When the battery pack 120 produces an extreme abnormal deformation, the battery pack 120 expands to block the transmission of light by the light sensor, so that the first signal receiver 132 cannot receive the first sensor signal transmitted by the first sensor 131, that is, the first signal receiver 132 cannot receive the first sensor signal and transmit it to the electric control box 133. If the electric control box 133 does not receive the first sensor signal within a preset time, it can be determined that the battery pack 120 is abnormal, and the electric control box 133 powers on the limiter 300; conversely, if the electric control box 133 receives the first sensor signal within a preset time, it can be determined that the battery pack 120 is not abnormal, and the electric control box 133 powers off the limiter 300. In this way, the limiter 300 can connect or separate the battery body 100 and the support member 200.
[0056] Furthermore, the battery pack 120 may be square or in other shapes, which are not specifically limited here. When the battery pack 120 is in a direction, there may be multiple first sensors 131 and first signal receivers 132. Multiple first sensors 131 and multiple first signal receivers 132 may be arranged at the front and rear ends of the battery pack 120, or at the left and right ends of the battery pack 120. Of course, they may also be arranged on the surrounding side of the battery pack 120, that is, around the front, back, left and right sides of the battery pack 120. The specific arrangement may be as needed. Multiple first sensors 131 and multiple first signal receivers 132 are arranged one by one, which increases the detection range and is conducive to improving the detection accuracy of the detection device 130.
[0057] See also Fig.10 and Fig.11 In one embodiment, the detection device 130 further includes a second sensor 134 and a second signal receiver 135. The second sensor 134 and the second signal receiver 135 are disposed on the housing 111 and located at opposite ends of the battery pack 120. The second sensor 134 and the second signal receiver 135 are both electrically connected to the electric control box 133 via a cable. The second signal receiver 135 is used to receive a second sensing signal transmitted by the second sensor 134 and transmit it to the electric control box 133. The first sensor 131 and the second sensor 134 are disposed on opposite sides of the battery pack 120 along its thickness direction.
[0058] It can be understood that the two opposite sides of the battery pack 120 along the thickness direction thereof are the side of the battery pack 120 facing upward and the side of the battery pack 120 facing downward. The second sensor 134 and the second signal receiver 135 can be arranged on the side of the battery pack 120 facing downward to detect the deformation of the lower surface of the battery pack 120; the first sensor 131 and the first signal receiver 132 can be arranged on the side of the battery pack 120 facing upward to detect the deformation of the upper surface of the battery pack 120. By detecting the deformation of the upper surface and the deformation of the lower surface of the battery pack 120, the detection range of the detection device 130 is increased, and the detection accuracy of the detection device 130 is improved. The second sensor 134 can be a light sensor, or an infrared sensor, or a smoke sensor, etc., which is not specifically limited here. In this solution, the second sensor 134 and the first sensor 131 are both light sensors, and the light sensor is used to detect the deformation of the battery pack 120. Please refer to the above content for the specific principle, which will not be repeated here.
[0059] See also Figure 7 , Figure 8 , Fig. 9 and Fig.11 In one embodiment, the battery pack 120 has a first surface 121 and a second surface 122 which are arranged opposite to each other along the thickness direction thereof, the first sensor 131 and the first signal receiver 132 are at least partially located above the first surface 121 to detect the deformation of the first surface 121; the second sensor 134 and the second signal receiver 135 are at least partially located below the second surface 122 to detect the deformation of the second surface 122. In this configuration, when the battery pack 120 is in a normal state, the first surface 121 of the battery pack 120 will not block the transmission of light by the first sensor 131, and only when the first surface 121 of the battery pack 120 is abnormally expanded will the first sensor 131 be blocked from transmitting light, so that the first signal receiver 132 can judge the state of the battery pack 120 according to whether the first sensor signal is received. Similarly, when the battery pack 120 is in a normal state, the second surface 122 of the battery pack 120 will not block the transmission of light by the second sensor 134. Only when the second surface 122 of the battery pack 120 is abnormally expanded will the second sensor 134 be blocked from transmitting light, so that the second signal receiver 135 can determine the state of the battery pack 120 according to whether the second sensor signal is received. It can be seen that this solution ensures the accuracy of the detection device 130 in detecting whether the battery pack 120 is abnormal, thereby improving the reliability of the automatic battery shedding device 10.
[0060] See also Figures 6 to 9In one embodiment, the shell 110 also includes a first support rod 113, which is disposed in the outer shell 111 and located above the battery pack 120; the detection device 130 also includes a first temperature sensor 136, and a first mounting groove 1131 is provided on the side of the first support rod 113 facing the battery pack 120, and the first temperature sensor 136 is disposed in the first mounting groove 1131 and is electrically connected to the electric control box 133.
[0061] It is understandable that the first support rod 113 is used to limit the battery pack 120 to prevent the battery pack 120 from shaking in the housing 111. The number of the first support rods 113 can be one, two, or more, which is not specifically limited here. In addition, the first support rod 113 is also provided with a first mounting groove 1131, and the first mounting groove 1131 is used for the installation of the first temperature sensor 136, which improves the utilization rate of the first support rod 113, and the first mounting groove 1131 is arranged on the side of the first support rod 113 facing the battery pack 120, so that the first temperature sensor 136 is arranged close to the upper surface of the battery pack 120, so that the first temperature sensor 136 can detect the temperature of the battery pack 120 in a timely and accurate manner, thereby preventing the thermal runaway of the battery pack 120 caused by the excessive ambient temperature in the housing 111 or the excessive temperature of the battery pack 120, and reducing the risk of fire or explosion of the battery pack 120. Of course, the number of the first mounting grooves 1131 can be one, two, or more. The multiple first mounting grooves 1131 are arranged in sequence along the length direction of the first support rod 113, and each first mounting groove 1131 is provided with a first temperature sensor 136, thereby improving the accuracy of the detection device 130 in detecting the temperature of the battery pack 120.
[0062] In one embodiment, the housing 110 further includes a first support rod 113, which is disposed in the shell 111 and above the battery pack 120; the shell 111 is provided with a plurality of first sensors 131 and a plurality of first signal receivers 132 arranged at intervals along the length direction of the first support rod 113, the plurality of first sensors 131 and the plurality of first signal receivers 132 are arranged one-to-one, the first support rod 113 is provided with a plurality of first through holes 1132 for the first sensing signal to pass through, the plurality of first through holes 1132 and the plurality of first signal receivers 132 are arranged one-to-one. In this configuration, by providing the first through holes 1132 on the first support rod 113, the first support rod 113 will not block the first sensing signal transmitted by the first sensor 131, and the first sensing signal can smoothly pass through the first through holes 1132 and be received by the first signal receiver 132, thereby improving the utilization rate of the first support rod 113. Each first support rod 113 may have one, two, or more first through holes 1132 , which may be arranged correspondingly according to the number of the first sensors 131 .
[0063] See also Fig.10 and Fig.11 In one embodiment, the shell 110 also includes a second support rod 114, which is disposed in the outer shell 111 and below the battery pack 120; the detection device 130 also includes a second temperature sensor 137, and a second mounting groove 1141 is provided on the side of the second support rod 114 facing the battery pack 120, and the second temperature sensor 137 is disposed in the second mounting groove 1141 and is electrically connected to the electric control box 133.
[0064] It is understandable that the second support rod 114 is arranged below the battery pack 120, which can not only support the battery pack 120, but also limit the battery pack 120 to prevent the battery pack 120 from shaking in the housing 111. The number of the second support rods 114 can be one, two, or more, which is not specifically limited here. In addition, the second support rod 114 is also provided with a second mounting groove 1141, and the second mounting groove 1141 is used for the installation of the second temperature sensor 137, which improves the utilization rate of the second support rod 114, and the second mounting groove 1141 is arranged on the side of the second support rod 114 facing the battery pack 120, so that the second temperature sensor 137 is arranged close to the upper surface of the battery pack 120, so that the second temperature sensor 137 can detect the temperature of the battery pack 120 in a timely and accurate manner, thereby preventing the thermal runaway of the battery pack 120 caused by the excessively high ambient temperature in the housing 111 or the excessively high temperature of the battery pack 120, and reducing the risk of the battery pack 120 catching fire or exploding. Of course, the number of the second mounting grooves 1141 can be one, two, or more. The multiple second mounting grooves 1141 are arranged in sequence along the length direction of the second support rod 114, and each second mounting groove 1141 is provided with a second temperature sensor 137, thereby improving the accuracy of the detection device 130 in detecting the temperature of the battery pack 120.
[0065] See also Fig.11 In one embodiment, the housing 110 further includes a second support rod 114, which is disposed in the housing 111 and below the battery pack 120; the housing 111 is provided with a plurality of second sensors 134 and a plurality of second signal receivers 135 arranged at intervals along the length direction of the second support rod 114, the plurality of second sensors 134 and the plurality of second signal receivers 135 are arranged one-to-one, and the second support rod 114 is provided with a plurality of second through holes 1142 for the second sensing signal to pass through, the plurality of second through holes 1142 and the plurality of second signal receivers 135 are arranged one-to-one. In this configuration, by providing the second through holes 1142 on the second support rod 114, the second support rod 114 will not block the second sensing signal transmitted by the second sensor 134, and the second sensing signal can smoothly pass through the second through holes 1142 and be received by the second signal receiver 135, thereby improving the utilization rate of the second support rod 114. Each second support rod 114 may have one, two, or more second through holes 1142 , which may be arranged accordingly according to the number of the second sensors 134 .
[0066] See also Figures 1 to 3In one embodiment, the shell 110 also includes a wire protection member 115, which is arranged at a corner outside the shell 111 and connected to the shell 111. The wire protection member 115 is provided with a wire protection channel 1151, and the wire protection channel 1151 is connected to the wiring harness groove 1121. The wire protection member 115 and the fixing member 112 are surrounded by the outer peripheral side of the shell 111 to form a ring, and the wire protection channel 1151 is used to centrally fix the cables of the detection device 130.
[0067] It can be understood that the fixing member 112 includes multiple fixing plates, each of which is provided with a wire harness groove 1121, the wire protection member 115 and the multiple fixing plates are enclosed to form a ring, and the wire harness grooves 1121 on the multiple fixing plates are connected in sequence and connected to the wire protection channel 1151. This arrangement allows the cables of the detection device 130 to be first routed in the wire harness grooves 1121 on the corresponding fixing plates, and then concentrated at the wire protection channel 1151 of the wire protection member 115. This facilitates the centralized fixation of the cables, avoids the scattered distribution of multiple cables, improves the regularity of the cable arrangement, and facilitates later maintenance and replacement.
[0068] See also Figure 1 , Figure 2 , Figure 4 and Figure 5 In one embodiment, the support member 200 is provided with the mounting portion 210, and the limiting member 300 includes a limiting rod 310, an electromagnetic assembly 320, an elastic member 330 and a limiting plate 340. The electromagnetic assembly 320 is arranged on the mounting portion 210, and the electromagnetic assembly 320 has a magnetic field cavity for generating a magnetic field. The limiting rod 310 is penetrated in the magnetic field cavity, and one end of the limiting rod 310 extends out from the magnetic field cavity and passes through the support member 200 and can be separated from the limiting portion 140. The limiting plate 340 is fixed at one end of the limiting rod 310 away from the electromagnetic assembly 320. The elastic member 330 is sleeved on the limiting rod 310, one end of the elastic member 330 abuts against the limiting plate 340, and the other end of the elastic member 330 abuts against the support member 200. The electromagnetic assembly 320 is electrically connected to the detection device 130.
[0069] It is understandable that by controlling the power on or off of the electromagnetic component 320, the connection and separation of the limit rod 310 and the limit part 140 can be achieved, so as to facilitate the control of the limit rod 310. The electromagnetic component 320 uses electromagnetic force to achieve the linear motion of the limit rod 310, that is, a magnetic field is generated by the energized coil, thereby pulling the internal limit rod 310 to move linearly. The electromagnetic component 320 includes a base, a coil and a static iron core. The static iron core is made of soft magnetic material to form a part of the magnetic circuit; the coil is wound with copper wire or aluminum wire, and a magnetic field is generated when energized; the base is used for the installation of the coil and the static iron core. The limit rod 310 is made of soft magnetic material, such as iron or silicon steel. The elastic member 330 can be a spring, a shrapnel, etc., which is not specifically limited here. When the detection device 130 energizes the electromagnetic assembly 320, the coil generates a magnetic field, which acts on the limit rod 310 to generate a pulling force, thereby separating it from the limit part 140; when the detection device 130 cuts off the power to the electromagnetic assembly 320, the limit rod 310 moves toward the limit part 140 under the elastic force of the elastic member 330, thereby being plugged into the limit part 140.
[0070] Specifically, when the detection device 130 turns off the power to the electromagnetic assembly 320, the elastic member 330 is reset to the installation state and pushes one end of the limit rod 310 to be inserted into the limit portion 140; when the detection device 130 turns on the power to the electromagnetic assembly 320, the electromagnetic assembly 320 drives the limit rod 310 to move toward the side away from the shell 110 and separate from the limit portion 140, and the elastic member 330 is squeezed to a compressed state, so that the battery body 100 is separated from the support member 200 and automatically falls off. In this way, the connection or separation of the limit member 300 and the limit portion 140 is realized, and the structure of the limit member 300 is simple and easy to control. The detection device 130 will only turn on the power to the limit member 300 when an abnormality occurs in the battery pack 120, which is conducive to improving the service life of the limit member 300.
[0071] In one embodiment, the mounting portion 210 may be a mounting groove, which is open toward the side facing away from the housing 110, so as to facilitate the installation of the electromagnetic assembly 320. In addition, the limiting portion 140 may be a limiting hole, so as to facilitate the limiting rod 310 to be limitedly inserted into the limiting hole.
[0072] See also Fig.12In one embodiment, the electric control box 133 includes a box body 1331, a rechargeable battery 1332, a control board 1333, a first plug 1334 and a second plug 1335. The control board 1333 and the rechargeable battery 1332 are arranged in the box body 1331 and are electrically connected. The first plug 1334 is arranged on the box body 1331. The first plug interface of the first plug 1334 faces the inside of the box body 1331 and is electrically connected to the control board 1333. The second plug interface of the first plug 1334 faces the outside of the box body 1331 and is electrically connected to the limiter 300. The third plug interface of the second plug 1335 faces the inside of the box body 1331 and is electrically connected to the control board 1333. The fourth plug interface of the second plug 1335 faces the outside of the box body 1331 and is used to be electrically connected to the sensor.
[0073] It is understandable that the fourth plug interface of the second plug 1335 can be electrically connected to at least one of the first sensor 131, the second sensor 134, the first temperature sensor 136 and the second temperature sensor 137. The rechargeable battery 1332 is used to power the control board 1333, that is, the rechargeable battery 1332 can power the limiter 300. In addition, when the automatic battery shedding device 10 is installed in an electric vehicle, the electric vehicle can also charge the rechargeable battery 1332 of the electric control box 133, which is conducive to improving the service life of the electric control box 133. In addition, the number of the first plug 1334 and the second plug 1335 can be one, two, or more, which is not specifically limited here.
[0074] See also Fig.12 In one embodiment, a first wire hole 1336 is provided on the box body 1331 of the electric control box 133, and the first wire hole 1336 is used for passing the first wire, so that the control board 1333 of the electric control box 133 is electrically connected to the vehicle system of the electric vehicle through the first wire. It can be understood that the first wire passes through the first wire hole 1336, one end of the first wire is electrically connected to the control board 1333 in the box body 1331, and the other end of the first wire is electrically connected to the alarm signal interface of the vehicle system, so that it is convenient to detect and repair the automatic battery shedding device 10, and the automatic battery shedding device 10 can also be manually controlled to fall off from the electric vehicle through the vehicle system.
[0075] In one embodiment, a second wire hole 1337 is provided on the box body 1331 of the electric control box 133, and the second wire hole 1337 is used for passing the second wire, so that the control board 1333 of the electric control box 133 and the rechargeable battery 1332 are electrically connected to the power supply system of the electric vehicle through the second wire. It can be understood that the second wire passes through the second wire hole 1337, one end of the second wire is electrically connected to the control board 1333 in the box body 1331, the control board 1333 is electrically connected to the rechargeable battery 1332, and the other end of the second wire is electrically connected to the power supply interface of the vehicle system, so that the electric vehicle can charge the rechargeable battery 1332 of the electric control box 133.
[0076] The utility model also proposes an electric vehicle, which includes the automatic battery shedding device 10 as described above. The specific structure of the automatic battery shedding device 10 refers to the above embodiment. Since the electric vehicle adopts all the technical solutions of all the above embodiments, it has at least all the beneficial effects brought by the technical solutions of the above embodiments, which will not be repeated here one by one.
[0077] The above description is only an exemplary embodiment of the present invention, and does not limit the patent scope of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the technical concept of the present invention, or directly / indirectly applied in other related technical fields are included in the patent protection scope of the present invention.
Claims
1. A battery automatic shedding device, applied to electric vehicles, characterized in that: include: A battery body, comprising a shell, a battery pack and a detection device, wherein the battery pack is arranged in the shell, and the detection device is arranged in the shell and is used to detect at least one parameter of the temperature of the battery pack and the deformation of the battery pack; a support member, used for being installed on the electric vehicle, the support member being arranged on a side of the housing and being arranged opposite to the housing, one of the support member and the housing being provided with a mounting portion, and the other being provided with a limiting portion; and A limiter, which is disposed on the mounting portion and is detachably disposed from the limiter, the limiter is electrically connected to the detection device, and has a power-on state and a power-off state; In the power-off state, the limiting member is plugged into the limiting portion to limit the separation of the battery body and the support member; In the power-on state, the limiting member is electrically driven to separate from the limiting portion, and the battery body automatically falls off from the supporting member.
2. The automatic battery removal device according to claim 1, characterized in that: The shell includes an outer shell and a fixing part, the battery pack is arranged in the outer shell, the fixing part is arranged outside the outer shell and connected to the outer shell, the fixing part and the supporting part are arranged opposite to each other, the mounting part is provided on one of the fixing part and the supporting part, and the limiting part is provided on the other one, and the fixing part is provided with a harness groove for installing the cable of the detection device.
3. The automatic battery removal device according to claim 2, characterized in that: The detection device includes a first sensor, a first signal receiver and an electric control box. The first sensor and the first signal receiver are arranged on the outer shell and located at opposite ends of the battery pack. The electric control box is arranged outside the outer shell. The first sensor and the first signal receiver are electrically connected to the electric control box through cables. At least part of the cables are arranged in the wiring harness groove. The first signal receiver is used to receive a first sensing signal transmitted by the first sensor and transmit it to the electric control box.
4. The automatic battery removal device according to claim 3, characterized in that: The detection device also includes a second sensor and a second signal receiver, which are arranged on the outer shell and located at opposite ends of the battery pack. The second sensor and the second signal receiver are both electrically connected to the electric control box through a cable, and the second signal receiver is used to receive a second sensing signal transmitted by the second sensor and transmit it to the electric control box. The first sensor and the second sensor are arranged on opposite sides of the battery pack along its thickness direction.
5. The automatic battery removal device according to claim 4, characterized in that: The battery pack has a first surface and a second surface arranged opposite to each other along its thickness direction, the first sensor and the first signal receiver are at least partially located above the first surface for detecting deformation of the first surface; the second sensor and the second signal receiver are at least partially located below the second surface for detecting deformation of the second surface.
6. The automatic battery removal device according to claim 3, characterized in that: The housing further includes a first support rod, which is disposed in the housing and above the battery pack; the detection device further includes a first temperature sensor, a first mounting groove is disposed on a side of the first support rod facing the battery pack, the first temperature sensor is disposed in the first mounting groove and is electrically connected to the electric control box; And / or, the outer shell is provided with a plurality of the first sensors and a plurality of the first signal receivers arranged at intervals along the length direction of the first support rod, the plurality of the first sensors are arranged in a one-to-one correspondence with the plurality of the first signal receivers, the first support rod is provided with a plurality of first via holes for allowing the first sensing signals to pass through, and the plurality of the first via holes are arranged in a one-to-one correspondence with the plurality of the first signal receivers.
7. The automatic battery removal device according to claim 4, characterized in that: The housing further includes a second support rod, which is disposed in the housing and below the battery pack; the detection device further includes a second temperature sensor, a second mounting groove is disposed on a side of the second support rod facing the battery pack, and the second temperature sensor is disposed in the second mounting groove and is electrically connected to the electric control box; And / or, the outer shell is provided with a plurality of second sensors and a plurality of second signal receivers arranged at intervals along the length direction of the second support rod, the plurality of second sensors are arranged in a one-to-one correspondence with the plurality of second signal receivers, the second support rod is provided with a plurality of second vias for allowing the second sensing signal to pass through, and the plurality of second vias are arranged in a one-to-one correspondence with the plurality of second signal receivers.
8. The automatic battery removal device according to claim 2, characterized in that: The shell also includes a wire protection piece, which is arranged at a corner outside the outer shell and connected to the outer shell. The wire protection piece is provided with a wire protection channel, and the wire protection channel is connected to the wiring harness groove. The wire protection piece and the fixing piece are surrounded by the outer peripheral side of the outer shell to form a ring, and the wire protection channel is used to centrally fix the cables of the detection device.
9. The automatic battery removal device according to any one of claims 1 to 8, characterized in that: The support member is provided with the mounting portion, and the limit member includes a limit rod, an electromagnetic assembly, an elastic member and a limit plate. The electromagnetic assembly is arranged on the mounting portion, and the electromagnetic assembly has a magnetic field cavity for generating a magnetic field. The limit rod is penetrated through the magnetic field cavity, and one end of the limit rod extends out from the magnetic field cavity and passes through the support member and is detachable from the limit portion. The limit plate is fixed to one end of the limit rod away from the electromagnetic assembly. The elastic member is sleeved on the limit rod, one end of the elastic member abuts against the limit plate, and the other end of the elastic member abuts against the support member. The electromagnetic assembly is electrically connected to the detection device.
10. An electric vehicle, characterized in that: It comprises the automatic battery shedding device as claimed in any one of claims 1 to 9.