Battery pack quick plug structure and tractor

Abstract

The utility model relates to the technical field of battery pack positioning, and specifically discloses a battery pack quick plug structure and a tractor, the plug structure includes the battery compartment and the limiting piece, the top of battery compartment is equipped with the opening, the battery pack can be inserted into the battery compartment through the opening, the limiting piece is located in the battery compartment, the limiting piece includes the support base plate and the first limiting plate and the second limiting plate at the both ends of support base plate, three enclose and form the limiting groove compatible with the lower part of battery pack, the support base plate is liftable with the inner wall of battery compartment is connected, and can along the battery compartment lifting movement to adjust the distance between support base plate and opening, and the length of limiting groove is adjustable, through limiting groove can provide the support limiting effect for the lower end of battery pack, and can provide the guiding effect for the insertion of battery pack, can improve the efficiency of plug -in, through the length adjustment of liftable support base plate and limiting groove, can be adapted to the battery pack of different height and length, and its applicability is better.

Description

Technical Field

[0001] This utility model relates to the technical field of battery pack positioning, and specifically to a battery pack quick-plug structure and tractor. Background Technology

[0002] With the popularization of new energy vehicles and electric equipment, such as electric tractors which also use battery packs for power supply, rapid battery pack replacement technology has become a key requirement for improving equipment efficiency. In fields such as vehicles and tools, battery packs usually need to be frequently disassembled for charging or replacement, but the existing technology has the following prominent problems:

[0003] 1. Low disassembly and assembly efficiency and cumbersome operation:

[0004] Traditional battery pack fixing mainly relies on fasteners such as bolts for thorough positioning, which makes installation and disassembly more troublesome. Special tools are required for operation, and careful alignment is required during assembly, which is time-consuming.

[0005] 2. The limiting structure is rigid and has poor compatibility.

[0006] The limiting slots in existing battery compartments are mostly designed with a fixed size, which can only match a single type of battery pack, resulting in poor applicability. Utility Model Content

[0007] This utility model was developed in consideration of the aforementioned problems. The purpose of this utility model is to provide a quick-plug structure for battery packs and a tractor, which can improve the assembly and replacement efficiency of battery packs and can be applied to battery packs of different sizes.

[0008] To achieve the above objectives, this utility model provides a quick-plug battery pack structure, wherein the battery pack is used to power the drive wheel assembly of a vehicle, and the quick-plug battery pack structure includes:

[0009] A battery compartment is located on the vehicle body, and the top of the battery compartment has an opening through which the battery pack can be inserted into the battery compartment;

[0010] A limiting component is located inside the battery compartment. The limiting component includes a supporting base plate and a first limiting plate and a second limiting plate located at both ends of the supporting base plate. The supporting base plate, the first limiting plate and the second limiting plate together form a limiting groove that is adapted to the lower part of the battery pack.

[0011] The supporting base plate can be raised and lowered to connect with the inner wall of the battery compartment, and can move up and down along the battery compartment to adjust the distance between the supporting base plate and the opening;

[0012] The first limiting plate and / or the second limiting plate can move toward or away from each other to adjust the length of the limiting groove.

[0013] According to the above-described battery pack quick-plug structure, the supporting base plate is U-shaped in general. A first side plate is provided on the front side of the supporting base plate, and a second side plate is provided on the rear side of the supporting base plate. A first adjustment groove is provided on the second side plate in a vertical direction. A first mounting hole is provided on the inner wall of the battery compartment, and the first adjustment groove corresponds to the first mounting hole.

[0014] According to the battery pack quick-plug structure described above, both the first limiting plate and the second limiting plate are L-shaped, and both the first limiting plate and the second limiting plate include a connecting plate located at the bottom of the supporting base plate. The connecting plate is provided with a second adjustment groove arranged along the length direction of the supporting base plate, and the bottom of the supporting base plate is provided with a second mounting hole, with the second adjustment groove corresponding to the second mounting hole.

[0015] According to the battery pack quick-plug structure described above, the upper ends of the first side plate, the first limiting plate, and the second limiting plate are all inclined toward the side away from the limiting groove.

[0016] According to the above-described battery pack quick-plug structure, the battery pack includes a battery body and a connector. The connector is located on one side of the lower part of the battery body. Guide plates are provided on both sides of the first limiting plate. The first limiting plate and the two guide plates together form a guide groove, which matches the connector.

[0017] According to the battery pack quick-plug structure described above, the top of the battery body is provided with a handle, and the upper ends of the two guide plates are inclined toward the side away from the guide groove.

[0018] The battery pack quick-plug structure described above also includes a locking member, which is retractably mounted on the vehicle body. The locking member has a first position retracted within the vehicle body and a second position extended at the opening. When the battery pack is located inside the battery compartment, the locking member can be extended to the second position and can abut against the top of the battery pack.

[0019] According to the above-described battery pack quick-plug structure, the locking component includes a sleeve, a locking shaft, a locking plate, a gripping part, and a locking spring. The sleeve is fixed to the vehicle body, the locking shaft is movably inserted into the sleeve, the locking plate is fixed to the end of the locking shaft near the opening, the gripping part is located on the end of the locking shaft away from the locking plate, and the locking spring is sleeved on the locking shaft and located between the end of the sleeve and the locking plate.

[0020] According to the above-described battery pack quick-plug structure, the bottom of the sleeve is provided with a slot arranged along its length direction, and the bottom of the locking shaft is provided with a limiting bolt. The limiting bolt is movably locked in the slot and can move along the length direction of the slot.

[0021] A tractor unit, comprising:

[0022] The vehicle body has a drive wheel assembly at its bottom;

[0023] As described above, in the quick-plug battery pack structure, the battery compartment is fixed to the middle of the vehicle body;

[0024] The battery pack is detachably disposed within the battery compartment.

[0025] This utility model has the following beneficial effects:

[0026] 1. The setting of the limiting groove can provide support and limit the lower end of the battery pack, and also provide guidance for the insertion of the battery pack, which can improve the efficiency of insertion and prevent the battery pack from shaking in the battery compartment, thus improving the stability of the battery pack installation.

[0027] 2. With its liftable support base and movable first and second limiting plates, it can accommodate battery packs of different heights and lengths, making it highly adaptable.

[0028] 3. A retractable locking device is provided at the opening of the battery compartment, which makes locking and unlocking the battery pack convenient and can greatly improve the efficiency of battery pack replacement. Attached Figure Description

[0029] Figure 1 This is a schematic diagram of the overall structure of the tractor unit in the embodiment;

[0030] Figure 2 This is a schematic diagram of the battery pack structure in an embodiment;

[0031] Figure 3 This is a schematic diagram of the limiting component structure in an embodiment;

[0032] Figure 4 This is a schematic diagram of the bottom structure of the limiting member in the embodiment;

[0033] Figure 5 This is a schematic diagram of the locking component structure in an embodiment.

[0034] In the picture:

[0035] 100. Battery compartment;

[0036] 200, limiting component; 210, supporting base plate; 211, first side plate; 212, second side plate; 212a, first adjusting groove; 220, first limiting plate; 221, connecting plate; 221a, second adjusting groove; 222, guide plate; 223, guide groove; 230, second limiting plate; 240, limiting groove;

[0037] 300. Battery pack; 310. Battery body; 311. Handle; 320. Connector;

[0038] 400, Locking component; 410, Sleeve; 411, Slot; 420, Locking shaft; 421, Limit bolt; 430, Grip part; 440, Locking plate;

[0039] 500. Vehicle body; 510. Drive wheel set. Detailed Implementation

[0040] The following are specific embodiments of the present invention, which are described in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments.

[0041] like Figure 1-5 As shown, a quick-plug battery pack structure includes a battery compartment 100, a limiting member 200, and a locking member 400.

[0042] The battery pack 300 is used to power the drive wheel set 510 of the vehicle body 500 and other electrical components to achieve electric drive. After the battery pack 300 is depleted, the power can be replenished by charging or replacing the battery pack 300. Replacing the battery pack 300 can not affect the use of the vehicle body 500 and improve the overall range of the vehicle body 500, so it is widely used.

[0043] Specifically, the battery compartment 100 is located on the vehicle body 500. An opening is provided at the top of the battery compartment 100, through which the battery pack 300 can be inserted into the battery compartment 100. The limiting member 200 is located inside the battery compartment 100. The limiting member 200 includes a supporting base plate 210 and a first limiting plate 220 and a second limiting plate 230 located at both ends of the supporting base plate 210. The supporting base plate 210, the first limiting plate 220, and the second limiting plate 230 together form a limiting groove 240 that is adapted to the lower part of the battery pack 300. The shape and size of the limiting groove 240 are adapted to the lower part of the battery pack 300. Therefore, during the insertion of the battery pack 300, the presence of the limiting groove 240 can guide the battery pack 300 to ensure that it is inserted into the preset position. At the same time, the presence of the limiting groove 240 can prevent the battery pack 300 from shaking inside the battery compartment 100, thereby improving the stability of the battery pack 300 installation.

[0044] In this embodiment, the support base plate 210 is vertically movable and connected to the inner wall of the battery compartment 100, and can move up and down along the battery compartment 100 to adjust the distance between the support base plate 210 and the opening. Since the bottom of the battery pack 300 is connected to the support base plate 210, for battery packs 300 of different heights, the height of the support base plate 210 can be adjusted to ensure that the top of the battery pack 300 is always flush with the opening of the battery compartment 100. This ensures that the battery pack 300 is completely located inside the battery compartment 100, and also avoids the battery pack 300 being too low to operate. This is suitable for battery packs 300 of different heights.

[0045] In this embodiment, the first limiting plate 220 and / or the second limiting plate 230 can move toward or away from each other to adjust the length of the limiting groove 240. There are three possible scenarios: First, the first limiting plate 220 remains fixed while the second limiting plate 230 can move horizontally to adjust the distance between the second limiting plate 230 and the first limiting plate 220. Second, the first limiting plate 220 can move horizontally while the second limiting plate 230 remains fixed, thus adjusting the distance between the first limiting plate 220 and the second limiting plate 230. Third, both the first limiting plate 220 and the second limiting plate 230 can move horizontally and synchronously, moving toward or away from each other to adjust the distance between them. All three methods can adjust the length of the limiting groove 240, making the limiting member 200 suitable for battery packs 300 of different lengths, thus increasing its applicability. In this embodiment, the third method is selected.

[0046] Furthermore, the support base plate 210 is U-shaped overall. A first side plate 211 is provided on the front side of the support base plate 210, and a second side plate 212 is provided on the rear side. The support base plate 210 can achieve front and rear lateral limiting. Combined with the first limiting plate 220 and the second limiting plate 230 located at both ends of the support base plate 210, horizontal lateral limiting can be achieved. Furthermore, the locking member 400 can limit the height, ensuring the stability of the battery pack 300 installed within the battery compartment 100. And to achieve the support base plate 210... The height adjustment is achieved by providing a first adjustment groove 212a arranged vertically on the second side plate 212 and a first mounting hole on the inner wall of the battery compartment 100. The first adjustment groove 212a corresponds to the first mounting hole. The mounting bolt can be inserted into the connection hole between the first adjustment groove 212a and the first mounting hole to achieve the positioning of the support base plate 210 and the battery compartment 100. When it is necessary to adjust the height of the support base plate 210, the mounting bolt can be loosened, and then the support base plate 210 can be driven to move to a suitable position before tightening the mounting bolt.

[0047] Furthermore, in order to achieve horizontal position adjustment of the first limiting plate 220 and the second limiting plate 230, both the first limiting plate 220 and the second limiting plate 230 are L-shaped, and both the first limiting plate 220 and the second limiting plate 230 include a connecting plate 221 located at the bottom of the supporting base plate 210. Both are connected and fixed to the supporting base plate 210 by a connecting plate 221. The connecting plate 221 is provided with a second adjustment groove 221a arranged along the length direction of the supporting base plate 210. The bottom of the supporting base plate 210 is provided with a second mounting hole. The second adjustment groove 221a corresponds to the second mounting hole. Similarly, a mounting bolt can be inserted into the connecting hole between the second adjustment groove 221a and the second mounting hole. When horizontal position adjustment is required, the mounting bolt can be loosened, and then the connecting plate 221 can be moved horizontally so that the second adjustment groove 221a corresponds to the second mounting hole in different parts. After adjustment, the mounting bolt can be tightened.

[0048] Furthermore, in order to achieve the guiding function of the limiting groove 240, the upper ends of the first side plate 211, the first limiting plate 220 and the second limiting plate 230 are all tilted towards the side away from the limiting groove 240. Of course, their tilting direction is from bottom to top. During the insertion of the battery pack 300, if the battery pack 300 has a certain deviation, it can be guided by the upper ends of the first side plate 211, the first limiting plate 220 and the second limiting plate 230, so that it can slide smoothly into the limiting groove 240, making the insertion of the battery pack 300 smoother.

[0049] Furthermore, the battery pack 300 includes a battery body 310 and a connector 320. The connector 320 is used to connect with other electrical connectors on the vehicle body 500 and to output electrical energy from the battery body 310. The connector 320 is located on one side of the lower part of the battery body 310. Guide plates 222 are provided on both sides of the first limiting plate 220. The first limiting plate 220 and the two guide plates 222 together form a guide groove 223. The guide groove 223 matches the connector 320. The presence of the guide groove 223 can provide a guiding effect for the downward movement of the connector 320, further improving the smoothness of the insertion of the battery pack 300.

[0050] Furthermore, a handle 311 is provided on the top of the battery body 310. The handle 311 is used to lift the battery body 310 for lifting and lowering. The upper ends of the two guide plates 222 are inclined toward the side away from the guide groove 223, which is used to guide the plug 320 so that it can be accurately inserted into the guide groove 223.

[0051] Furthermore, the locking member 400 is retractably mounted on the vehicle body 500, and the locking member 400 has a first position retracted within the vehicle body 500 and a second position extended at the opening. When the battery pack 300 needs to be replaced, the operator can drive the locking member 400 to remain in the first position, which will not interfere with the insertion or removal of the battery pack 300. When the battery pack 300 is located in the battery compartment 100, that is, after the battery pack 300 has been replaced, the operator can release the locking member 400, and the locking member 400 can be extended to the second position. The bottom of the locking member 400 can abut against the top of the battery pack 300 to achieve vertical locking of the battery pack 300.

[0052] Furthermore, to ensure that the locking member 400 remains in the second position when no force is applied, the locking member 400 includes a sleeve 410, a locking shaft 420, a locking plate 440, a gripping part 430, and a locking spring. The sleeve 410 is fixed to the vehicle body 500, the locking shaft 420 is movably inserted into the sleeve 410, the locking plate 440 is fixed to the end of the locking shaft 420 near the opening, the gripping part 430 is located on the end of the locking shaft 420 away from the locking plate 440, and the locking spring is sleeved on the... The locking shaft 420 is located on the sleeve 410 and between the locking plate 440. Under the action of the locking spring, the locking shaft 420 is always kept in the position of extending out of the opening. Thus, the battery pack 300 can be locked by the locking plate 440. When it is necessary to change the position of the locking shaft 420, the operator can manually hold the grip part 430 and use the grip part 430 to drive the locking shaft 420 to overcome the elastic force and move it horizontally away from the opening, thereby unlocking the battery pack 300.

[0053] Furthermore, in order to restrict the rotation of the locking shaft 420, a slot 411 is provided at the bottom of the sleeve 410 along its length direction, and a limiting bolt 421 is provided at the bottom of the locking shaft 420. The limiting bolt 421 can be movably locked in the slot 411 and can move along the length direction of the slot 411. The cooperation between the slot 411 and the limiting bolt 421 can prevent the rotation of the locking shaft 420, ensure the stability of the locking plate 440, and at the same time allow the locking shaft 420 to move horizontally.

[0054] Specifically, a tractor includes: a vehicle body 500, a quick-plug structure for a battery pack 300, and a drive wheel assembly 510 at the bottom of the vehicle body 500. A battery compartment 100 is fixed in the middle of the vehicle body 500, and the battery pack 300 is detachably disposed in the battery compartment 100 and used to supply power to the drive wheel assembly 510.

[0055] In this embodiment, a quick-plug structure for a battery pack 300 and a tractor are disclosed. The quick-plug structure for the battery pack 300 includes a battery compartment 100 and a limiting member 200. The battery compartment 100 is located on the vehicle body 500, and the top of the battery compartment 100 has an opening through which the battery pack 300 can be inserted. The limiting member 200 is located inside the battery compartment 100 and includes a supporting base plate 210 and a first limiting plate 220 and a second limiting plate 230 located at both ends of the supporting base plate 210. The supporting base plate 210, the first limiting plate 220, and the second limiting plate 230 together form a limiting groove 240 that is adapted to the lower part of the battery pack 300. The supporting base plate 210 is liftable and adjustable to the inner wall of the battery compartment 100. The support base plate 210 can be raised and lowered along the battery compartment 100 to adjust the distance between the support base plate 210 and the opening. The first limiting plate 220 and / or the second limiting plate 230 can move toward or away from each other to adjust the length of the limiting groove 240. The limiting groove 240 can provide support and limit for the lower end of the battery pack 300 and guide the insertion of the battery pack 300, thereby improving the efficiency of insertion and preventing the battery pack 300 from shaking in the battery compartment 100, thus improving the stability of the battery pack 300 installation. With the liftable support base plate 210 and the movable first limiting plate 220 and second limiting plate 230, it can be adapted to battery packs 300 of different heights and lengths, and its applicability is good.

[0056] The technical solution of this utility model has been described in detail above with reference to the accompanying drawings. The described embodiments are used to help understand the concept of this utility model. The specific embodiments described herein are merely illustrative examples of the spirit of this utility model. Those skilled in the art to which this utility model pertains can make various modifications or additions to the described specific embodiments or use similar methods to replace them, but without departing from the spirit of this utility model or exceeding the scope defined by the appended claims.

[0057] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0058] Furthermore, in this utility model, the use of terms such as "first," "second," and "a" is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0059] In this utility model, unless otherwise explicitly specified and limited, the terms "connection," "fixing," etc., should be interpreted broadly. For example, "fixing" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0060] Furthermore, the technical solutions of the various embodiments of this utility model can be combined with each other, but only if they are based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

Claims

1. A quick-plug battery pack structure, wherein the battery pack is used to power the drive wheel assembly of a vehicle, characterized in that, The battery pack quick-plug structure includes: A battery compartment is located on the vehicle body, and the top of the battery compartment has an opening through which the battery pack can be inserted into the battery compartment; A limiting component is located inside the battery compartment. The limiting component includes a supporting base plate and a first limiting plate and a second limiting plate located at both ends of the supporting base plate. The supporting base plate, the first limiting plate and the second limiting plate together form a limiting groove that is adapted to the lower part of the battery pack. The supporting base plate can be raised and lowered to connect with the inner wall of the battery compartment, and can move up and down along the battery compartment to adjust the distance between the supporting base plate and the opening; The first limiting plate and / or the second limiting plate can move toward or away from each other to adjust the length of the limiting groove.

2. The battery pack quick-plug structure according to claim 1, characterized in that, The supporting base plate is U-shaped in general. A first side plate is provided on the front side of the supporting base plate, and a second side plate is provided on the rear side of the supporting base plate. A first adjustment groove is provided on the second side plate in a vertical direction. A first mounting hole is provided on the inner wall of the battery compartment. The first adjustment groove corresponds to the first mounting hole.

3. The battery pack quick-plug structure according to claim 2, characterized in that, Both the first limiting plate and the second limiting plate are L-shaped, and both the first limiting plate and the second limiting plate include a connecting plate located at the bottom of the supporting base plate. The connecting plate is provided with a second adjusting groove arranged along the length direction of the supporting base plate. The bottom of the supporting base plate is provided with a second mounting hole, and the second adjusting groove corresponds to the second mounting hole.

4. The battery pack quick-plug structure according to claim 3, characterized in that, The upper ends of the first side plate, the first limiting plate, and the second limiting plate are all inclined toward the side away from the limiting groove.

5. The battery pack quick-plug structure according to claim 1, characterized in that, The battery pack includes a battery body and a connector. The connector is located on one side of the lower part of the battery body. Guide plates are provided on both sides of the first limiting plate. The first limiting plate and the two guide plates together form a guide groove, which matches the connector.

6. The battery pack quick-plug structure according to claim 5, characterized in that, The battery body has a handle on top, and the upper ends of the two guide plates are inclined toward the side away from the guide groove.

7. The battery pack quick-plug structure according to claim 1, characterized in that, It also includes a locking member, which is retractably mounted on the vehicle body and has a first position retracted within the vehicle body and a second position extended at the opening. When the battery pack is located inside the battery compartment, the locking member can be extended to the second position and can abut against the top of the battery pack.

8. A quick-plug battery pack structure according to claim 7, characterized in that, The locking component includes a sleeve, a locking shaft, a locking plate, a gripping part, and a locking spring. The sleeve is fixed to the vehicle body, the locking shaft is movably inserted into the sleeve, the locking plate is fixed to the end of the locking shaft near the opening, the gripping part is located on the end of the locking shaft away from the locking plate, and the locking spring is sleeved on the locking shaft and located between the end of the sleeve and the locking plate.

9. A quick-plug battery pack structure according to claim 8, characterized in that, The bottom of the sleeve is provided with a slot arranged along its length direction, and the bottom of the locking shaft is provided with a limiting bolt. The limiting bolt is movably locked in the slot and can move along the length direction of the slot.

10. A tractor unit, characterized in that, include: The vehicle body has a drive wheel assembly at its bottom; The battery pack quick-plug structure as described in any one of claims 1-9, wherein the battery compartment is fixed in the middle of the vehicle body; The battery pack is detachably disposed within the battery compartment.

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