Locking and unlocking device and battery replacing platform

Abstract

The utility model discloses a locking and unlocking device and a battery replacing platform. The locking and unlocking device comprises a locking and unlocking piece, a connecting piece and a fixing piece which are coaxially arranged in the first direction. Wherein the locking and unlocking piece is used for being in butt joint with a locking structure, and a first mounting hole is formed in the locking and unlocking piece in the first direction; a second mounting hole is formed in the fixing piece in the first direction; the first end, in the first direction, of the connecting piece is installed in the first installation hole and is in clearance fit with the first installation hole, the second end, in the first direction, of the connecting piece is installed in the second installation hole and is in clearance fit with the second installation hole, and the connecting piece is used for connecting the locking and unlocking piece with the fixing piece. According to the locking and unlocking device provided by the embodiment of the invention, the locking and unlocking piece, the connecting piece and the fixing piece are coaxially arranged, the stability of the locking and unlocking force output by the locking and unlocking device can be well guaranteed, and meanwhile, the compatibility of the locking and unlocking device to the deviation of the locking structure on the plane perpendicular to the first direction is effectively improved.

Description

Technical Field

[0001] The utility model relates to the field of new energy vehicles, and in particular to a locking and unlocking device and a battery replacement platform. Background Art

[0002] With the exhaustion of traditional energy, the use of electric energy is becoming more and more popular, especially in the automotive industry, where electric vehicles are being promoted. At present, the rapid and safe replenishment of energy for electric vehicles has become a widely concerned issue. A battery swap station is a facility designed specifically for new energy electric vehicles. Its main function is to provide electric vehicles with a rapid replacement service for power batteries. With the rapid development of the new energy vehicle industry, the importance and prospects of battery swap stations as an efficient way to replenish energy are becoming increasingly prominent. Battery swapping is usually carried out on a battery swap platform in a battery swap station. The locking and unlocking device on the battery swap platform is required to unlock the locking structure on the car battery, thereby separating the battery from the vehicle. Similarly, a fully charged battery also requires a locking and unlocking device to lock the locking structure, thereby fixing the fully charged battery to the vehicle. However, the battery of an electric vehicle is often large in size, and there are often multiple locking mechanisms on the battery. There is often a large tolerance between the multiple locking structures. Therefore, there is an urgent need for a locking and unlocking device that can lock and unlock a locking structure with a position deviation. Utility Model Content

[0003] The technical problem to be solved by the embodiments of the present utility model is to provide a locking and unlocking device and a battery replacement platform, which can lock and unlock a locking structure with position deviation.

[0004] In order to solve the above technical problems, the utility model provides a locking and unlocking device, which includes: a locking and unlocking member, a connecting member and a fixing member coaxially arranged along a first direction; wherein the locking and unlocking member is used to dock with the locking structure, and a first mounting hole is opened along the first direction; the fixing member has a second mounting hole opened along the first direction, and the connecting member, the first end of which is installed in the first mounting hole along the first direction and is gap-matched with the first mounting hole, and the second end of which is installed in the second mounting hole along the first direction and is gap-matched with the second mounting hole, is used to connect the locking and unlocking member with the fixing member.

[0005] In a feasible implementation, the locking and unlocking member is floatingly connected to the connecting member.

[0006] In a feasible implementation, the locking and unlocking device further includes a first elastic member and a second elastic member, wherein the first elastic member is disposed between the locking and unlocking member and the connecting member, and the second elastic member is disposed between the connecting member and the fixing member.

[0007] In a feasible implementation, the first elastic member is a first spring, which is accommodated in the first mounting hole, one end of the first spring abuts against the locking and unlocking member, and the other end of the first spring abuts against the connecting member; the second elastic member is a second spring, which is accommodated in the second mounting hole, one end of the second spring abuts against the connecting member, and the other end of the first spring abuts against the fixing member.

[0008] In a feasible implementation, the connecting member has a first limiting portion, which is located between the first end of the connecting member and the second end of the connecting member along the first direction, and the diameter of the first limiting portion is larger than the diameters of the first mounting hole and the second mounting hole.

[0009] In a feasible implementation, a third mounting hole is formed on the outer wall of the first mounting hole, and a first fastener passes through the third mounting hole to connect the connecting member to the locking and unlocking member; a fourth mounting hole is formed on the outer wall of the second mounting hole, and a second fastener passes through the fourth mounting hole to connect the connecting member to the fixing member.

[0010] In a feasible implementation, the connecting member has a first sliding groove along the first direction, the first fastener penetrates the third mounting hole along the second direction and is installed in the first sliding groove, and the connecting member is slidably connected to the locking and unlocking member along the first direction; the connecting member has a second sliding groove along the first direction, the second fastener penetrates the fourth mounting hole along the third direction and is installed in the second sliding groove, and the connecting member is slidably connected to the fixing member along the first direction; the second direction and the third direction are perpendicular to the first direction, and the first sliding groove and the second sliding groove are arranged on both sides of the first limiting portion along the first direction.

[0011] In a feasible implementation, the locking and unlocking member defines a fifth mounting hole along the first direction, an elastic pad is installed at the bottom of the fifth mounting hole, the fifth mounting hole is used to accommodate the screw of the locking structure, and the elastic pad abuts against the screw.

[0012] In a feasible implementation, the locking and unlocking device further includes a driving device, which is connected to the fixing member and is used to drive the fixing member to rotate so as to drive the locking and unlocking member to rotate.

[0013] Correspondingly, the utility model also provides a battery swap platform, comprising at least one of the above-mentioned locking and unlocking devices.

[0014] The implementation of this utility model has the following beneficial effects:

[0015] The locking and unlocking device provided in the embodiment of the present application can rotate the locking and unlocking member around the axis direction of the fixing member by a certain angle through the two-section clearance cooperation between the connecting member and the locking and unlocking member and the fixing member, thereby effectively improving the compatibility of the locking and unlocking device with the deviation of the locking structure on the plane perpendicular to the first direction. At the same time, the locking and unlocking member, the connecting member and the fixing member are coaxially arranged, which can better ensure the stability of the locking and unlocking force output by the locking and unlocking device.

[0016] It should be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The drawings herein are incorporated into the specification and constitute a part of the specification, illustrate embodiments consistent with the present application, and together with the specification are used to explain the principles of the present application, and do not constitute an improper limitation on the present application.

[0018] Figure 1 is a schematic diagram of an exemplary three-dimensional mechanism of a locking and unlocking device shown in an embodiment of the present application;

[0019] Figure 2 yes Figure 1 Exploded diagram of

[0020] Figure 3 yes Figure 1 The main view;

[0021] Figure 4 yes Figure 3 Section view along AA.

[0022] Reference numerals in the figures:

[0023] 100- plus unlocking device;

[0024] 110- unlocking piece, 111- first mounting hole, 112- third mounting hole, 113- first fastener, 114- fifth mounting hole, 115- elastic pad, 116- pin

[0025] 120-connecting member, 121-first limiting portion, 122-first sliding groove, 123-second sliding groove

[0026] 130-fixing piece, 131-second mounting hole, 132-fourth mounting hole, 133-second fastener,

[0027] 140- first spring,

[0028] 150 - Second spring. DETAILED DESCRIPTION

[0029] In order to make the above-mentioned purposes, features and advantages of the utility model more obvious and easy to understand, the specific implementation methods of the utility model are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the utility model. However, the utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the utility model, so the utility model is not limited by the specific embodiments disclosed below.

[0030] In the description of the present invention, it should be understood that descriptions involving orientation, such as up, down, front, back, left, right, etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0031] In the description of the present utility model, "several" means more than one, "many" means more than two, "greater than", "less than", "exceed" etc. are understood to exclude the number itself, and "above", "below", "within" etc. are understood to include the number itself. If there is a description of "first" or "second", it is only used to distinguish the technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0032] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0033] In the description of the utility model, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0034] Please refer to Figures 1 to 4. An embodiment of the present application provides a locking and unlocking device 100. The locking and unlocking device 100 includes: a locking and unlocking member 110, a connecting member 120 and a fixing member 130 coaxially arranged along a first direction. The first direction may be a vertical direction. Among them, the locking and unlocking member 110 is used to dock with the locking structure. The locking and unlocking member 110 has a first mounting hole 111 along the first direction. The fixing member 130 has a second mounting hole 131 along the first direction. The first end of the connecting member 120 along the first direction is installed in the first mounting hole 111 and is clearance-matched with the first mounting hole 111, and the second end along the first direction is installed in the second mounting hole 131 and is clearance-matched with the second mounting hole 131, for connecting the locking and unlocking member 110 with the fixing member 130. The locking and unlocking device 100 is floatingly connected to the locking structure.

[0035] The locking and unlocking device 100 provided in the embodiment of the present application, through the two-section clearance cooperation between the connecting member 120 and the locking and unlocking member 110 and the fixing member 130, enables the locking and unlocking member 110 to rotate a certain angle around the axis direction of the fixing member 130, effectively improving the compatibility of the locking and unlocking device 100 with the deviation of the locking structure on the plane perpendicular to the first direction. At the same time, the locking and unlocking member 110, the connecting member 120 and the fixing member 130 are coaxially arranged, which can better ensure the stability of the locking and unlocking force output by the locking and unlocking device 100.

[0036] In a feasible implementation, the locking and unlocking member 110 and the connecting member 120 are floatingly connected. In this way, the locking and unlocking device 100 and the locking structure can be floatingly connected. The floating connection between the locking and unlocking member 110 and the connecting member 120 can be achieved by a floating connector or an elastic connection device. In this way, the locking and unlocking device 100 has a floating range in the first direction. When the locking and unlocking device 100 is docked with the locking structure, on the one hand, flexible docking can be achieved, and on the other hand, the deviation of multiple locking structures in the first direction can be adapted, which effectively improves the compatibility of the locking and unlocking device 100 with the deviation of the locking structure in the first direction.

[0037] In a feasible implementation, the locking and unlocking device 100 can be floatingly connected to the locking structure by arranging the locking and unlocking device 100 on a floating mechanism. The locking and unlocking device 100 can be floatingly connected to the locking structure by the floating mechanism to achieve compatibility with the locking structure deviation in the first direction.

[0038] In a feasible implementation, the locking and unlocking device 100 also includes a first elastic member and a second elastic member. The first elastic member is arranged between the locking and unlocking member 110 and the connecting member 120, and the second elastic member is arranged between the connecting member 120 and the fixing member 130. Elastic elements (such as springs, rubber pads, bellows, etc.) can effectively absorb and disperse vibrations and impact forces between connecting parts, protect the connecting structure from damage, and improve the stability and reliability of the entire system. By providing the first elastic member and the second elastic member, the locking and unlocking member 110 and the connecting member 120 can be connected in a floating manner. The elastic element has a simple structure and is easy to obtain, which can reduce production costs and is conducive to a wide range of applications. As an example, a limiting or positioning structure may be provided on the locking and unlocking member 110 to fix one elastic end of the first elastic element, and another limiting or positioning structure may be provided on the connecting member 120 to fix the other elastic end of the first elastic element; as an example, the first elastic member may be provided between the locking and unlocking member 110 and the connecting member 120 by opening a groove on each of the locking and unlocking member 110 and the connecting member 120, and installing the first elastic element in the groove to achieve a floating connection between the two.

[0039] In one possible implementation, Figures 1 to 4As shown, the first elastic member is a first spring 140. The first spring 140 is accommodated in the first mounting hole 111. One end of the first spring 140 abuts against the locking and unlocking member 110, and the other end of the first spring 140 abuts against the connecting member 120. The second elastic member is a second spring 150. The second spring 150 is accommodated in the second mounting hole 131, one end of the second spring 150 abuts against the connecting member 120, and the other end of the first spring 140 abuts against the fixing member 130. The first spring 140, the second spring 150 and the connecting member 120 are coaxially arranged. In this way, two-way elastic compression in the first direction can be achieved by two springs, which can further improve the compatibility of the locking and unlocking device 100 in the first direction. Further, the first spring 140 and the second spring 150 can be rectangular springs. Rectangular springs are also called mold springs, because the cross-section of the manufacturing material is rectangular, so they are called rectangular springs. More common brands include SPEC rectangular springs. Rectangular springs are very suitable for occasions where the load is very high and the space is very limited. They are designed to be used in holes or on shafts, and meet the requirements of high-speed compression and overweight loads. Using rectangular springs as the first elastic member and / or the second elastic member can improve the centrality between the locking and unlocking member 110, the connecting member 120 and the fixing member 130, and can ensure the verticality of the locking and unlocking member 110 when locking and unlocking, so that the locking and unlocking member 110 and the locking structure are easier to recognize. Furthermore, the abutment between the first spring 140 and the locking and unlocking member 110 and the connecting member 120 can be achieved by opening another mounting groove on the first mounting hole 111 of the locking and unlocking member 110. Accordingly, a mounting groove is correspondingly opened at the first end of the connecting member 120, and the two ends of the first spring 140 are respectively fixed in these two mounting grooves. The fixing method of the second spring 150 can be the same or similar to that of the first spring 140, which will not be repeated here.

[0040] In a feasible implementation, the first elastic member or the second elastic member may also be other elastic elements such as a rubber pad, a bellows, etc. The installation and fixing method may also be by opening an installation groove, or by fixing with other elements, etc. These technologies are relatively existing and will not be described in detail here.

[0041] In one possible implementation, Figures 1 to 4As shown, the connecting member 120 has a first limiting portion 121. The first limiting portion 121 is located between the first end of the connecting member 120 and the second end of the connecting member 120 along the first direction. The diameter of the first limiting portion 121 is larger than the diameters of the first mounting hole 111 and the second mounting hole 131. The first limiting portion 121 divides the connection between the connecting member 120 and the locking and unlocking member 110 and the fixing member 130 into two sections. The first limiting portion 121 can be integrally formed with both ends of the connecting member 120, or can be a separate component, for example, can be a circular ring fixed to the connecting member 120 by interference fit.

[0042] In one possible implementation, Figures 1 to 4 As shown, the outer wall of the first mounting hole 111 is provided with a third mounting hole 112. The first fastener 113 penetrates the third mounting hole 112 to connect the connecting member 120 with the locking and unlocking member 110. The outer wall of the second mounting hole 131 is provided with a fourth mounting hole 132, and the second fastener 133 penetrates the fourth mounting hole 132 to connect the connecting member 120 with the fixing member 130. The fasteners connect the locking and unlocking member 110 and the fixing member 130 to the connecting member 120 respectively through the mounting holes. In this way, the assembly of the locking and unlocking device 100 can be facilitated. Optionally, the first fastener 113 and / or the second fastener 133 can be a pin or a combination of a pin and a top screw, which will not be described in detail here.

[0043] In one possible implementation, Figures 1 to 4 As shown, the connecting member 120 is provided with a first sliding groove 122 along the first direction. The first fastener 113 penetrates the third mounting hole 112 along the second direction and is installed in the first sliding groove 122, so that the connecting member 120 and the locking and unlocking member 110 are slidably connected along the first direction. The connecting member 120 is provided with a second sliding groove 123 along the first direction. The second fastener 133 penetrates the fourth mounting hole 132 along the third direction and is installed in the second sliding groove 123, so that the connecting member 120 and the fixing member 130 are slidably connected along the first direction. The second direction and the third direction are perpendicular to the first direction, and the first sliding groove 122 and the second sliding groove 123 are arranged on both sides of the first limiting portion 121 along the first direction. The connecting member 120 and the locking and unlocking member 110, and the connecting member 120 and the fixing member 130 are slidably connected through the sliding groove. Further, the number of the first sliding grooves 122 can be two, three, four or more, and the number of the third mounting holes 112 is also one-to-one. These first sliding grooves 122 and the third mounting holes 112 are symmetrical about the central axis of the connecting member 120 , which can improve the stability of connection and sliding, and improve the overall operation stability of the locking and unlocking device 100 .

[0044] In one possible implementation, Figures 1 to 4 As shown, the locking and unlocking member 110 is provided with a fifth mounting hole 114 along the first direction, and an elastic pad 115 is installed at the bottom of the fifth mounting hole 114. The fifth mounting hole 114 is used to accommodate the screw of the locking structure, and the elastic pad 115 abuts against the screw. The elastic pad 115 can maintain support for the locking structure to prevent the screw from falling off the locking structure. The material of the elastic pad 115 can be PU or POM. On the one hand, the pad of this material has a certain elasticity, and POM has high hardness, compressive strength and impact resistance, which enables it to withstand large loads without being easily deformed; on the other hand, it has good wear resistance and corrosion resistance for long-term use. Furthermore, the elastic pad 115 can be fixed in the fifth mounting hole 114 by fasteners. The fixing technology here is relatively existing and will not be repeated.

[0045] In a possible implementation, Figure 4 As shown, the fifth mounting hole 114 of the locking and unlocking member 110 has a pattern corresponding to the locking structure, which can achieve fixed position with the screw on the locking structure or other unlocking member 110 when locking and unlocking, and can drive the unlocking member 110 to rotate to achieve locking and unlocking. Furthermore, the fifth mounting hole 114 can also be chamfered at the top to facilitate docking with the locking structure.

[0046] In a feasible implementation, the locking and unlocking device 100 further includes a driving device, which is connected to the fixing member 130 and is used to drive the fixing member 130 to rotate and drive the locking and unlocking member 110 to rotate, so as to achieve locking and unlocking. Furthermore, the driving device includes a rotary motor and a reducer, and the fixing member 130 is connected to the rotary motor through the reducer and drives the fixing member 130 to rotate, and the rotary motor increases the output torque through the reducer. Optionally, the output shaft of the reducer is connected to the fixing member 130 through a key to ensure that the fixing member 130 rotates synchronously with the output shaft of the reducer, and the rotary motor and the reducer cooperate to provide the rotational force required for unlocking.

[0047] The assembly method of the locking and unlocking device 100 provided in the embodiment of the present application can be: first install the first spring 140 on the connecting member 120; put the locking and unlocking member 110 on the connecting member 120 and the first elastic member, and fix the locking and unlocking member 110 and the connecting member 120 by a limiting pin, at this time, the first spring 140 is in a relaxed state, and the limiting pin is located at the top of the first slide groove; install the second spring 150 on the fixing member 130; insert the connecting member 120 into the second mounting hole 131 of the fixing member 130, fix the fixing member 130 and the connecting member 120 by a limiting pin, and put the second spring 150 in a compressed state, and the limiting pin is located at the top of the second slide groove.

[0048] Accordingly, the embodiment of the present application also provides a battery swap platform. The battery swap platform includes at least one of the above-mentioned locking and unlocking devices. The battery swap platform provided in the embodiment of the present application can lock and unlock the locking structure with a position deviation range of 2mm, effectively improve the locking and unlocking effect, improve the battery swap efficiency of the battery swap platform, and facilitate wide application.

[0049] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0050] The above-mentioned embodiments only express several implementation methods of the utility model, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the utility model patent. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent shall be based on the attached claims.

Claims

1. A locking and unlocking device, characterized in that: The locking and unlocking device comprises: a locking and unlocking member, a connecting member and a fixing member coaxially arranged along a first direction; wherein, The locking and unlocking member is used for docking with the locking structure and has a first mounting hole formed along the first direction; The fixing member has a second mounting hole formed along the first direction. The connecting member, whose first end along the first direction is installed in the first mounting hole and is loosely matched with the first mounting hole, and whose second end along the first direction is installed in the second mounting hole and is loosely matched with the second mounting hole, is used to connect the locking and unlocking member with the fixing member.

2. The locking and unlocking device according to claim 1, characterized in that: The locking and unlocking member is floatingly connected to the connecting member.

3. The locking and unlocking device according to claim 2, characterized in that: The locking and unlocking device further comprises a first elastic member and a second elastic member, wherein the first elastic member is arranged between the locking and unlocking member and the connecting member, and the second elastic member is arranged between the connecting member and the fixing member.

4. The locking and unlocking device according to claim 3, characterized in that: The first elastic member is a first spring, which is accommodated in the first mounting hole, one end of the first spring abuts against the locking and unlocking member, and the other end of the first spring abuts against the connecting member; the second elastic member is a second spring, which is accommodated in the second mounting hole, one end of the second spring abuts against the connecting member, and the other end of the first spring abuts against the fixing member.

5. The locking and unlocking device according to claim 1, characterized in that: The connecting member has a first limiting portion, which is located between the first end of the connecting member and the second end of the connecting member along the first direction, and the diameter of the first limiting portion is greater than the diameters of the first mounting hole and the second mounting hole.

6. The locking and unlocking device according to claim 5, characterized in that: A third mounting hole is provided on the outer wall of the first mounting hole, and a first fastener passes through the third mounting hole to connect the connecting member with the locking and unlocking member; a fourth mounting hole is provided on the outer wall of the second mounting hole, and a second fastener passes through the fourth mounting hole to connect the connecting member with the fixing member.

7. The locking and unlocking device according to claim 6, characterized in that: The connecting member has a first sliding groove along the first direction, and the first fastener passes through the third mounting hole along the second direction and is installed in the first sliding groove, so that the connecting member and the locking and unlocking member are slidably connected along the first direction; the connecting member has a second sliding groove along the first direction, and the second fastener passes through the fourth mounting hole along the third direction and is installed in the second sliding groove, so that the connecting member and the fixing member are slidably connected along the first direction; the second direction and the third direction are perpendicular to the first direction, and the first sliding groove and the second sliding groove are arranged on both sides of the first limiting portion along the first direction.

8. The locking and unlocking device according to claim 1, characterized in that: The locking and unlocking member defines a fifth mounting hole along the first direction, an elastic pad is installed at the bottom of the fifth mounting hole, the fifth mounting hole is used to accommodate the screw of the locking structure, and the elastic pad abuts against the screw.

9. The locking and unlocking device according to claim 1, characterized in that: The locking and unlocking device further comprises a driving device, which is connected to the fixing member and is used to drive the fixing member to rotate so as to drive the locking and unlocking member to rotate.

10. A battery swap platform, characterized in that: The invention comprises at least one locking and unlocking device as claimed in any one of claims 1 to 9.

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