Positioning pin assembly, positioning mechanism and battery replacement equipment

Abstract

The utility model relates to the technical field of battery replacement, and provides a positioning pin assembly, a positioning mechanism and a battery replacement device.The positioning pin assembly comprises a positioning pin, a trigger rod, an elastic piece and a sensor, the positioning pin is provided with a containing cavity, the trigger rod comprises a rod part and a contact arranged on the rod part, and the rod part, the elastic piece and the sensor are all located in the containing cavity; the rod part and the sensor are arranged at intervals in the axial direction of the trigger rod, and the elastic piece is located between the rod part and the sensor; under the elastic action of the elastic piece, the contact protrudes out of the insertion end of the positioning pin. And under the condition that the contact is subjected to external force, the rod part overcomes the elastic force of the elastic piece to move towards the sensor so as to trigger the sensor. According to the positioning pin assembly, due to the fact that the sensor is integrated in the positioning pin, the contact of the trigger rod can be matched with the hole edge of the positioning hole to trigger the sensor when abnormal conditions occur, the positioning pin assembly can be suitable for vehicle types with or without bottom protection plates, and the problem of poor compatibility is solved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of battery replacement, and in particular to a positioning pin assembly, a positioning mechanism and a battery replacement device. BACKGROUND

[0002] The battery replacement station is an energy station for quickly replacing the power battery of an electric vehicle. After the vehicle enters the battery replacement station, the battery replacement platform of the battery replacement station realizes rough positioning of the vehicle in the X direction and the Y direction through a V-shaped groove and a centering device. Before a locking and unlocking mechanism on the battery replacement platform is locked and unlocked, a positioning mechanism on the battery replacement platform repositions the vehicle body by using a positioning pin. When the rough positioning is inaccurate, the positioning pin will be in contact with the vehicle body support, causing damage to the vehicle body support or the positioning mechanism. If it can be quickly detected whether the positioning pin is in contact with the vehicle body support, and the positioning pin is stopped from moving in time when it is detected that the positioning pin is in contact with the support, the damage to the vehicle body support or the positioning mechanism can be reduced.

[0003] At present, a proximity sensor is arranged beside the positioning pin, the proximity sensor moves synchronously with the positioning pin and is used to sense the bottom guard plate of the vehicle body. When the positioning pin is lifted to bear the gravity of the vehicle body, the torque will suddenly increase. At this time, if the proximity sensor triggers a signal, it is judged that the positioning pin has entered the positioning hole, and if the proximity sensor does not trigger a signal, it is judged that the positioning pin has not entered the positioning hole. However, some vehicle models have a bottom guard plate, and some vehicle models do not have a bottom guard plate, which causes the vehicle models without a bottom guard plate to be unable to be used, and the compatibility is poor. CONTENT OF THE UTILITY MODEL

[0004] Therefore, the embodiments of the present application provide a positioning pin assembly, a positioning mechanism and a battery replacement device to solve the problem of poor compatibility.

[0005] The first aspect of the present application provides a positioning pin assembly, which comprises a positioning pin, a trigger rod, an elastic member and a sensor. The positioning pin has a receiving cavity. The trigger rod comprises a rod portion and a contact head arranged on the rod portion. The rod portion, the elastic member and the sensor are all arranged in the receiving cavity. The rod portion and the sensor are arranged in the axial direction of the trigger rod. The elastic member is arranged between the rod portion and the sensor. Under the elastic force of the elastic member, the contact head protrudes from the insertion end of the positioning pin. When the contact head is subjected to an external force, the rod portion moves towards the sensor to trigger the sensor by overcoming the elastic force of the elastic member.

[0006] The positioning pin assembly provided by the embodiment of the application has the beneficial effects that: under the elastic force of the elastic member, the contact head protrudes from the insertion end of the positioning pin, and the distance between the rod part and the sensor is the farthest, exceeding the sensing distance of the sensor, and the sensor is in an untriggered state. Under normal circumstances, the positioning pin smoothly enters the positioning hole, and the contact head is not pressed during the process, that is, the sensor is always in an untriggered state; when an abnormal situation occurs, the positioning pin does not enter the positioning hole, and the contact head is pressed against the hole edge of the positioning hole, that is, the contact head is subjected to an external force, so that the rod part overcomes the elastic force of the elastic member and moves towards the sensor to trigger the sensor; when the sensor is triggered, the positioning pin stops rising, so that the insertion end of the positioning pin does not press against the vehicle body support to damage the vehicle body or press against the bottom of the battery to damage the battery. Since the sensor is integrated in the interior of the positioning pin, the contact head of the trigger rod can cooperate with the hole edge of the positioning hole to trigger the sensor when an abnormal situation occurs, and therefore the positioning pin assembly can be applied to vehicles with or without a bottom guard plate, and the problem of poor compatibility is solved.

[0007] In some embodiments, the sensor is a proximity sensor.

[0008] The technical scheme has the beneficial effects that: when the rod part approaches the proximity sensor, the proximity sensor can be triggered without contacting the proximity sensor, and rigid contact between the rod part and the proximity sensor is avoided, thereby prolonging the service life of the rod part and the proximity sensor.

[0009] In some embodiments, the diameter of the contact head is 1-3 mm.

[0010] The technical scheme has the beneficial effects that: the insertion end of the positioning pin is usually a conical surface, so that the positioning pin can be guided to enter the positioning hole, and the diameter of the contact head is designed to be 1-3 mm, that is, the contact head is thin and does not damage the conical surface of the insertion end of the positioning pin, so that the guiding range of the insertion end of the positioning pin is not affected.

[0011] In some embodiments, the rod segment close to the insertion end of the positioning pin is a stepped structure or a conical structure.

[0012] The technical scheme has the beneficial effects that: the insertion end of the positioning pin is usually a conical surface, and the rod segment close to the insertion end of the positioning pin is designed to be a stepped structure or a conical structure, so that the wall thickness of the insertion end of the positioning pin is ensured, thereby ensuring the structural strength of the positioning pin during positioning.

[0013] In some embodiments, the positioning pin assembly further comprises a lead wire connected with the sensor, the positioning pin has a lead wire hole, and the lead wire passes out of the lead wire hole; the positioning pin assembly further comprises a protective sleeve between the hole wall of the lead wire hole and the outer wall of the lead wire.

[0014] The beneficial effects of the above technical solutions are that the sensor leads out signals to the outside through the lead-out wire to ensure stable transmission of the signals; and the protective sleeve between the hole wall of the lead hole and the outer wall of the lead-out wire not only protects the lead-out wire and makes the lead-out wire less likely to break, but also plays a waterproof and dustproof role to avoid water and impurities in the outside world from entering the inside of the positioning pin.

[0015] In some embodiments, the positioning pin comprises a pin body and a pin seat, a groove is arranged on one side surface of the pin body facing the pin seat, and / or a groove is arranged on one side surface of the pin seat facing the pin body, and the pin body and the pin seat are fixedly connected and surround the lead hole.

[0016] The beneficial effects of the above technical solutions are that the lead-out wire is only needed to be placed in the groove, and then the pin body and the pin seat are fixedly connected, so that the lead-out wire can be led out of the lead hole, which is relatively convenient.

[0017] In some embodiments, the positioning pin comprises a pin body and a pin seat, and the positioning pin assembly further comprises a fixing sleeve, the sensor is fixed in the fixing sleeve, and an outer wall of the fixing sleeve is provided with a fixing protrusion which is tightly pressed between the pin body and the pin seat.

[0018] The beneficial effects of the above technical solutions are that the sensor is fixed in the fixing sleeve, and the fixing protrusion of the fixing sleeve is tightly pressed between the pin body and the pin seat, so that the sensor is relatively convenient to disassemble and assemble.

[0019] In some embodiments, the positioning pin assembly further comprises a fixing sleeve fixedly connected in the accommodating cavity, and the sensor is screw-connected in the fixing sleeve.

[0020] The beneficial effects of the above technical solutions are that the sensor is screw-connected in the fixing sleeve, so that the distance between the sensor and the rod part can be adjusted by screwing the sensor, so as to adjust the timing of triggering the sensor by the rod part.

[0021] In some embodiments, the positioning pin is provided with a water guide hole which communicates between the inside and the outside of the accommodating cavity.

[0022] The beneficial effects of the above technical solutions are that the water in the accommodating cavity can be discharged from the water guide hole, so as to avoid water on the vehicle body from entering the positioning pin and accumulating in the inside of the positioning pin.

[0023] In some embodiments, the elastic member is a spring.

[0024] The beneficial effects of the above technical solutions are that the spring is a standard part and is easy to obtain, and the elastic force can be selected as required.

[0025] The second aspect of the present application provides a positioning mechanism, comprising a driving device and the positioning pin assembly as described in the first aspect, wherein the positioning pin assembly is arranged at a driving end of the driving device.

[0026] The positioning mechanism adopts any one or more of the above-mentioned embodiments of the positioning pin assembly, thus having the beneficial effects of the above-mentioned embodiments, which will not be repeated here.

[0027] The third aspect of the present application provides a battery replacement device, comprising a seat body, a locking and unlocking mechanism and the positioning mechanism as described in the second aspect, wherein the locking and unlocking mechanism and the positioning mechanism are both arranged on the seat body.

[0028] The battery replacement device adopts any one or more of the above-mentioned embodiments of the positioning mechanism, thus having the beneficial effects of the above-mentioned embodiments, which will not be repeated here.

[0029] The above description is only a summary of the technical solutions of the present application. In order to make the technical means of the present application more clear and understandable, the specific embodiments of the present application can be implemented according to the content of the description, and in order to make the above and other purposes, features and advantages of the present application more obvious and easy to understand, the following specific embodiments of the present application are described. BRIEF DESCRIPTION OF DRAWINGS

[0030] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the embodiments or conventional technical description. Obviously, the drawings in the following description are only some embodiments of the present application, and those skilled in the art can obtain other drawings according to these drawings without any creative labor.

[0031] Figure 1 is a structural schematic view of the positioning pin assembly provided by some embodiments of the present application;

[0032] Figure 2 is Figure 1 is a sectional view of the positioning pin assembly shown in A-A direction;

[0033] Figure 3 is Figure 2 is a sectional view of the contact of the positioning pin assembly after being pressed;

[0034] Figure 4 is a structural schematic view of the positioning mechanism provided by some embodiments of the present application.

[0035] The meanings of the marks in the drawings are as follows:

[0036] 100, positioning mechanism;

[0037] 10, positioning pin assembly;

[0038] 11. Positioning pin; 111. Pin body; 1111. Insertion end; 1112. Water guide hole; 112. Pin seat; 113. Containing cavity; 114. Lead hole;

[0039] 12. Trigger lever; 121. Contact; 122. Lever portion;

[0040] 13. Elastic member;

[0041] 14. Sensor;

[0042] 15. Protective sleeve;

[0043] 16. Fixing sleeve; 161. Fixing convex portion;

[0044] 17. Lead wire;

[0045] 20. Lifting seat;

[0046] 30. Rack;

[0047] 40. Guide rod;

[0048] 50. Reducer;

[0049] 60. Driving motor. DETAILED DESCRIPTION

[0050] The embodiments of the technical scheme of the present application will be described in detail below with reference to the drawings. The following embodiments are only used to more clearly illustrate the technical scheme of the present application, and therefore only serve as examples, and cannot limit the protection scope of the present application.

[0051] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs; the terms used herein are only for the purpose of describing specific embodiments of the present application, and are not intended to limit the present application; the terms "include" and "have" and any variations thereof in the specification and claims of the present application and the above description of drawings are intended to cover non-exclusive inclusion.

[0052] In the description of the embodiments of the present application, the technical terms "first", "second", etc. are only used to distinguish different objects, and cannot be understood as indicating or implying relative importance or implicitly indicating the number, specific order or primary and secondary relationship of the indicated technical features. In the description of the embodiments of the present application, the meaning of "a plurality of" is two or more, unless otherwise explicitly and specifically limited.

[0053] Reference to an "embodiment" in this document means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the application. The appearances of the phrase in various places in the specification are not necessarily all referring to the same embodiment, nor are they necessarily mutually exclusive of one another. It is expressly understood that the embodiments described herein are merely examples from among a great variety of embodiments that can be made by persons of ordinary skill in the art.

[0054] In the description of the embodiments of the application, the term "and / or" is merely an association relationship of the associated objects, which means that there can be three relationships, for example, A and / or B, which can represent the three cases of A alone, A and B together, and B alone. In addition, the character " / " in this paper generally represents that the front and rear associated objects are a "or" relationship.

[0055] In the description of the embodiments of the application, the term "a plurality of" refers to more than two (including two), and similarly, "a plurality of groups" refers to more than two groups (including two groups), and "a plurality of pieces" refers to more than two pieces (including two pieces).

[0056] In the description of the embodiments of the application, the technical terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the embodiments of the application and simplifying the description, and does not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the embodiments of the application.

[0057] In the description of the embodiments of the application, unless otherwise explicitly specified and limited, the technical terms "mounting", "connection", "connection", "fixing", and the like should be understood in a broad sense, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the internal communication of two elements or the interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in the embodiments of the application can be understood according to the specific circumstances.

[0058] The embodiments of the first aspect of the application propose a positioning pin assembly, which can be applied to the hole detection of the vehicle body support and the hole detection of the battery. Please refer to Figure 1 and Figure 2The positioning pin assembly 10 comprises a positioning pin 11, a trigger lever 12, an elastic member 13 and a sensor 14, the positioning pin 11 has a receiving cavity 113, the trigger lever 12 comprises a lever portion 122 and a contact 121 arranged on the lever portion 122, the lever portion 122, the elastic member 13 and the sensor 14 are all arranged in the receiving cavity 113, the lever portion 122 and the sensor 14 are arranged in the axial direction of the trigger lever 12, and the elastic member 13 is arranged between the lever portion 122 and the sensor 14; under the elastic force of the elastic member 13, the contact 121 protrudes from the insertion end 1111 of the positioning pin 11; in the case that the contact 121 is subjected to an external force, the lever portion 122 moves towards the sensor 14 against the elastic force of the elastic member 13, so as to trigger the sensor 14.

[0059] The receiving cavity 113 is a strip-shaped cavity extending in the axial direction of the positioning pin 11, and it can be understood that the cross-sectional shape of the receiving cavity 113 perpendicular to the axial direction of the positioning pin 11 can be circular, oval, polygonal or the like. The axial direction of the positioning pin 11 is consistent with the movement direction of the positioning pin 11.

[0060] In the case of an abnormal situation (for example, the positioning pin 11 does not enter the positioning hole), the contact 121 is used to abut against the opening of the positioning hole, and the lever portion 122 is used to trigger the sensor 14; the positioning hole can be arranged on the vehicle body support or on the battery.

[0061] It can be understood that the contact 121 and the lever portion 122 can be integrally formed, or the contact 121 can be fixedly connected to the lever portion 122, for example, the contact 121 is fixedly connected to the lever portion 122 by welding, bonding, threaded connection, clamping, interference fit or the like.

[0062] The lever portion 122 and the sensor 14 are arranged in the axial direction of the trigger lever 12, and the elastic member 13 is arranged between the lever portion 122 and the sensor 14, so that the trigger lever 12, the elastic member 13 and the sensor 14 are sequentially arranged in the axial direction of the positioning pin 11. The axial direction of the trigger lever 12 is consistent with the axial direction of the positioning pin 11.

[0063] Under the elastic force of the elastic member 13, the contact 121 protrudes from the insertion end 1111 of the positioning pin 11, that is, the contact 121 is at the same end as the insertion end 1111 of the positioning pin 11. It can be understood that, in the natural state, the elastic member 13 applies an elastic force to the lever portion 122 away from the sensor 14, so that the contact 121 on the lever portion 122 protrudes from the insertion end 1111 of the positioning pin 11, that is, in the case of an abnormal situation, the contact 121 contacts the hole of the positioning hole earlier than the insertion end 1111 of the positioning pin 11; at this time, the distance between the lever portion 122 and the sensor 14 is far away from the sensing distance of the sensor 14.

[0064] When the contact 121 is subjected to an external force, the rod portion 122 moves towards the sensor 14 against the elastic force of the elastic member 13 to trigger the sensor 14. It can be understood that the external force to which the contact 121 is subjected is the pushing force of the hole along of the positioning hole, and under the external force, the contact 121 moves towards the inside of the accommodating cavity 113, at the same time, the rod portion 122 overcomes the elastic force of the elastic member 13 and compresses the elastic member 13 to move towards and trigger the sensor 14, and the positioning pin 11 stops rising.

[0065] The positioning pin assembly 10 provided by the embodiment of the present application has the following beneficial effects: Figure 2 Under the elastic force of the elastic member 13, the contact 121 protrudes from the insertion end 1111 of the positioning pin 11, and the distance between the rod portion 122 and the sensor 14 is the farthest, which exceeds the sensing distance of the sensor 14, and the sensor 14 is in an untriggered state. Under normal circumstances, the positioning pin 11 smoothly enters the positioning hole, and the contact 121 is not pressed in this process, that is, the sensor 14 is always in an untriggered state; when an abnormal situation occurs, the positioning pin 11 does not enter the positioning hole, and the contact 121 abuts against the hole along of the positioning hole, that is, the contact 121 is subjected to an external force, so that the rod portion 122 overcomes the elastic force of the elastic member 13 and moves towards the sensor 14 to trigger the sensor 14, please refer to Figure 3 When the sensor 14 is triggered, the positioning pin 11 stops rising, and the vehicle body support and the bottom of the battery are only subjected to the slight elastic force of the elastic member 13, so that the insertion end 1111 of the positioning pin 11 does not press the vehicle body support to damage the vehicle body or press the bottom of the battery to cause damage to the battery. Since the sensor 14 is integrated inside the positioning pin 11, the contact 121 of the trigger rod 12 can trigger the sensor 14 by cooperating with the hole along of the positioning hole when an abnormal situation occurs, so the sensor 14 can be applied to vehicle models with or without a bottom guard plate, and the problem of poor compatibility is solved.

[0066] In some embodiments, the sensor 14 is a proximity sensor.

[0067] It can be understood that the proximity sensor can be a capacitive proximity sensor, an inductive proximity sensor or a photoelectric proximity sensor, etc.

[0068] Based on the above scheme, when the rod portion 122 overcomes the elastic force of the elastic member 13 and approaches the sensor 14, the sensor 14 can be triggered without contacting the sensor 14, so that the rigid contact between the rod portion 122 and the sensor 14 is avoided, and the service life of the rod portion 122 and the sensor 14 is increased.

[0069] In other embodiments, the sensor 14 can also be a pressure sensor, and when the rod portion 122 overcomes the elastic force of the elastic member 13 and approaches the sensor 14, the rod portion 122 contacts the sensor 14 to trigger the sensor 14.

[0070] In some embodiments, the diameter of the contact 121 is 1-3 mm.

[0071] Optionally, the diameter of the contact 121 can be 1mm, 1.5mm, 2mm, 2.5mm or 3mm, etc.

[0072] Based on the above scheme, the insertion end 1111 of the positioning pin 11 is generally a tapered surface, which facilitates the guiding insertion of the positioning pin 11 into the positioning hole. The diameter of the contact 121 is designed to be 1-3mm, i.e., the contact 121 is relatively thin, which will not damage the tapered surface of the insertion end 1111 of the positioning pin 11, and thus will not affect the guiding range of the insertion end 1111 of the positioning pin 11.

[0073] In other embodiments, when the overall size of the positioning pin 11 is large, the diameter of the contact 121 can also be designed to be greater than 3mm, for example, 4mm, 5mm, etc.; or, when the strength of the contact 121 meets the requirements, the diameter of the contact 121 can be designed to be less than 1mm, for example, 0.8mm, 0.6mm, etc.

[0074] Please refer to Figure 2 In some embodiments, the rod segment of the rod portion 122 close to the insertion end 1111 of the positioning pin 11 is a stepped structure, i.e., the rod segment of the rod portion 122 close to the contact 121 is a stepped structure.

[0075] It can be understood that the stepped structure can be a one-level step; or, the stepped structure can also be a multi-level step, for example, a two-level step, a three-level step, a four-level step, etc. Among them, the stepped surface of the stepped structure faces away from the sensor 14, i.e., in the direction away from the sensor 14, the size of the stepped structure in the radial direction of the positioning pin 11 becomes smaller and smaller.

[0076] Based on the above scheme, the insertion end 1111 of the positioning pin 11 is generally a tapered surface, and the rod segment of the rod portion 122 close to the insertion end 1111 of the positioning pin 11 is designed to be a stepped structure, which can ensure the wall thickness of the insertion end 1111 of the positioning pin 11, thereby ensuring the structural strength of the positioning pin 11 during positioning.

[0077] In other embodiments, the rod segment of the rod portion 122 close to the insertion end 1111 of the positioning pin 11 can also be a tapered structure, i.e., the rod segment of the rod portion 122 close to the contact 121 is a tapered structure.

[0078] Please refer to Figure 2 In some embodiments, the positioning pin assembly 10 further includes a lead wire 17 connected with the sensor 14, the positioning pin 11 has a lead hole 114, and the lead wire 17 passes out of the lead hole 114; the positioning pin assembly 10 further includes a protective sleeve 15 between the hole wall of the lead hole 114 and the outer wall of the lead wire 17.

[0079] Among them, the lead wire 17 is connected at the end of the sensor 14 away from the trigger rod 12, for transmitting signals outward.

[0080] The lead hole 114 is in communication with the inside and outside of the accommodating cavity 113 for the lead-out wire 17 to pass through. The lead hole 114 can be a circular hole, an oval hole, a polygonal hole, etc. When the lead hole 114 is a polygonal hole, it can be a rectangular hole, for example.

[0081] Optionally, the outer wall surface of the protective sleeve 15 is adapted to the hole wall of the lead hole 114, and the inner wall surface of the protective sleeve 15 is adapted to the outer wall of the lead-out wire 17. The protective sleeve 15 can be a rubber sleeve.

[0082] Since the lead-out wire 17 ascends and descends with the positioning pin 11, the lead-out wire 17 needs to reserve a margin to prevent the lead-out wire 17 from being pulled when the positioning pin 11 ascends and descends.

[0083] Based on the above scheme, the sensor 14 leads the signal outward through the lead-out wire 17 to ensure stable transmission of the signal. The protective sleeve 15 between the hole wall of the lead hole 114 and the outer wall of the lead-out wire 17 not only can protect the lead-out wire 17 from being broken, but also can play a waterproof and dustproof role to avoid water, impurities, etc. from the outside into the inside of the positioning pin 11.

[0084] In other embodiments, the lead-out wire 17 and the protective sleeve 15 are not included, and the positioning pin 11 also does not have the lead hole 114, and the sensor 14 transmits the signal wirelessly.

[0085] Please refer to Figure 2 and Figure 4 In some embodiments, the positioning pin 11 includes a pin body 111 and a pin seat 112, the pin body 111 is provided with a groove on the side surface facing the pin seat 112, and / or the pin seat 112 is provided with a groove on the side surface facing the pin body 111, and the pin body 111 and the pin seat 112 are fixedly connected and surround the lead hole 114.

[0086] The pin seat 112 is used to be fixed on the lifting seat 20, and the insertion end 1111 is arranged at the end of the pin body 111 away from the pin seat 112.

[0087] The side surface of the pin body 111 towards the pin seat 112 is provided with a groove, and / or the side surface of the pin seat 112 towards the pin body 111 is provided with a groove. It can be understood that the side surface of the pin body 111 towards the pin seat 112 and the side surface of the pin seat 112 towards the pin body 111 are both provided with grooves, and the two grooves are arranged in alignment, and when the pin body 111 and the pin seat 112 are fixedly connected, the two grooves enclose the lead hole 114; or the side surface of the pin body 111 towards the pin seat 112 is provided with a groove, and the side surface of the pin seat 112 towards the pin body 111 is a flat surface, and when the pin body 111 and the pin seat 112 are fixedly connected, the groove on the pin body 111 and the flat surface on the pin seat 112 enclose the lead hole 114; or the side surface of the pin body 111 towards the pin seat 112 is a flat surface, and the side surface of the pin seat 112 towards the pin body 111 is provided with a groove, and when the pin body 111 and the pin seat 112 are fixedly connected, the flat surface on the pin body 111 and the groove on the pin seat 112 enclose the lead hole 114. The groove is a through groove extending in the radial direction of the positioning pin 11.

[0088] It can be understood that the groove can be a semicircular groove, an elliptical groove, a rectangular groove, etc.

[0089] It can be understood that the pin body 111 and the pin seat 112 can be fixedly connected by fasteners (such as screws, bolts, etc.); or the pin body 111 and the pin seat 112 can also be clamped, for example, one of the pin body 111 and the pin seat 112 is provided with a clamping hook, and the other is provided with a clamping groove; or the pin body 111 and the pin seat 112 can also be bonded.

[0090] Based on the above scheme, only the lead-out wire 17 is placed in the groove, and then the pin body 111 and the pin seat 112 are fixedly connected, so that the lead-out wire 17 can be led out from the lead hole 114, which is more convenient.

[0091] In other embodiments, the lead hole 114 can be arranged on the pin body 111 or the pin seat 112, and the lead-out wire 17 is pulled out from the lead hole 114 before the pin body 111 and the pin seat 112 are fixedly connected together.

[0092] Please refer to Figure 2 In some embodiments, the positioning pin 11 includes a pin body 111 and a pin seat 112, and the positioning pin assembly 10 further includes a fixing sleeve 16, and the sensor 14 is fixed in the fixing sleeve 16, and the outer wall of the fixing sleeve 16 is provided with a fixing protrusion 161, and the fixing protrusion 161 is pressed between the pin body 111 and the pin seat 112.

[0093] It can be understood that the fixing protrusion 161 can be provided with one, and at this time, the fixing protrusion 161 can be an annular protrusion or a C-shaped protrusion; or the fixing protrusion 161 can also be provided with multiple, for example, two, three, four, etc., and the multiple fixing protrusions 161 are arranged in intervals along the circumference of the fixing sleeve 16.

[0094] Optionally, the pin body 111 is provided with a step, and the fixing protrusion 161 is pressed on the step of the pin body 111 by the pin seat 112.

[0095] Based on the above scheme, since the sensor 14 is fixed in the fixing sleeve 16, the fixing protrusion 161 of the fixing sleeve 16 is pressed between the pin body 111 and the pin seat 112, so that the sensor 14 cannot move in the accommodating cavity 113, and the sensor 14 is also convenient to disassemble and assemble.

[0096] In other embodiments, the fixing sleeve 16 can be fixed in the accommodating cavity 113 of the pin body 111 by thread connection, interference connection, clamping and the like.

[0097] Please refer to Figure 2 In some embodiments, the positioning pin assembly 10 further comprises a fixing sleeve 16 fixedly connected in the accommodating cavity 113, and the sensor 14 is threadedly connected in the fixing sleeve 16. That is, the inner wall surface of the fixing sleeve 16 is provided with an internal thread, and the outer wall surface of the sensor 14 is provided with an external thread.

[0098] Based on the above scheme, since the sensor 14 is threadedly connected in the fixing sleeve 16, the distance between the sensor 14 and the rod portion 122 can be adjusted by screwing the sensor 14, so as to adjust the timing of the rod portion 122 triggering the sensor 14.

[0099] In other embodiments, the sensor 14 can be adhesively fixed in the fixing sleeve 16; or the sensor 14 can also be clamped in the fixing sleeve 16.

[0100] Please refer to Figure 1 and Figure 2 In some embodiments, the positioning pin 11 is provided with a water guide hole 1112 communicating between the inside and outside of the accommodating cavity 113.

[0101] Optionally, the water guide hole 1112 is correspondingly arranged at the end of the fixing sleeve 16 close to the trigger rod 12, so that the water above the fixing sleeve 16 can be guided out. The diameter of the water guide hole 1112 is not limited as long as the water can be guided.

[0102] It can be understood that the number of the water guide hole 1112 can be one or more. When the number of the water guide hole 1112 is more than one, the plurality of water guide holes 1112 can be arranged at intervals along the circumference of the positioning pin 11.

[0103] When the positioning pin 11 is vertically arranged and the insertion end 1111 is at the top, it can be understood that the water guide hole 1112 can extend horizontally, or the water guide hole 1112 can extend obliquely downward, so as to facilitate water guiding.

[0104] Based on the above scheme, the water in the accommodating cavity 113 can be discharged from the water guide hole 1112, avoiding the water of the vehicle body belt from entering the positioning pin 11 and accumulating inside the positioning pin 11.

[0105] In other embodiments, the water guide hole 1112 can also not be arranged when the contact 121 is in good sealing with the positioning pin 11.

[0106] In some embodiments, the elastic member 13 is a spring.

[0107] Optionally, the spring is a compression spring.

[0108] Based on the above scheme, the spring is a standard part and is easy to obtain, and the elastic force can be selected as required; moreover, the spring does not block the water, ensuring that the water entering the accommodating cavity 113 can smoothly pass through the water guide hole 1112 and be discharged.

[0109] In other embodiments, the elastic member 13 can also be a rubber cylinder.

[0110] In some embodiments, when the space permits, the trigger lever 12 and the elastic member 13 can not be arranged in the accommodating cavity 113, and the sensor 14 is a contact sensor, which directly contacts the hole along of the positioning hole in an abnormal situation to trigger the sensor 14.

[0111] Please refer to Figure 4 The second aspect of the present application proposes a positioning mechanism 100. The positioning mechanism 100 comprises a driving device and the positioning pin assembly 10 as described in the first aspect, and the positioning pin assembly 10 is arranged at the driving end of the driving device.

[0112] The driving device is used to drive the positioning pin assembly 10 to ascend or descend.

[0113] Optionally, the driving device comprises a driving motor 60, a speed reducer 50, a guide rod 40, a rack 30, and a lifting seat 20, the positioning pin assembly 10 is fixed on the lifting seat 20, the lifting seat 20 is driven to ascend and descend by the rack 30 and is guided by the guide rod 40; the output gear of the speed reducer 50 is engaged with the rack 30, and the input shaft of the speed reducer 50 is connected with the output shaft of the driving motor 60. When the driving motor 60 works, the rack 30 is driven to move up and down by the speed reducer 50, thereby driving the lifting seat 20 and the positioning pin assembly 10 to ascend and descend. The lifting seat 20 constitutes the driving end of the driving device.

[0114] In other embodiments, the driving device can comprise a telescopic cylinder and a mounting seat, the mounting seat is fixed on the telescopic rod of the telescopic cylinder, and the positioning pin assembly 10 is arranged on the mounting seat; the mounting seat and the positioning pin assembly 10 are driven to ascend and descend together by the telescopic cylinder. The mounting seat constitutes the driving end of the driving device. Optionally, the telescopic cylinder can be a pneumatic cylinder or a hydraulic cylinder.

[0115] The third aspect of the present application provides a battery replacement device, which comprises a seat body, a locking and unlocking mechanism and the positioning mechanism 100 according to the second aspect, and the locking and unlocking mechanism and the positioning mechanism 100 are arranged on the seat body.

[0116] It can be understood that the battery replacement device can be a battery replacement trolley, a battery replacement robot, etc.

[0117] Among them, the positioning mechanism 100 is provided with at least two, and optionally, the positioning mechanism 100 is provided with two, and the two positioning mechanisms 100 are diagonally arranged, for example, using a left front and right rear arrangement structure.

[0118] The locking and unlocking mechanism is used for quickly disassembling and assembling the battery, that is, the locking and unlocking mechanism can fasten or release the battery from the body of the electric vehicle. Among them, the battery is first positioned by the positioning mechanism 100, and then disassembled and assembled by the locking and unlocking mechanism.

[0119] The above embodiments are only used to illustrate the technical solutions of the present application, but not to limit them; although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that the technical solutions recorded in the foregoing embodiments can still be modified, or some technical features can be replaced by equivalents; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present application, and should be included in the protection scope of the present application.

Claims

1. A dowel pin assembly, characterized by: The positioning pin assembly comprises a positioning pin, a trigger lever, an elastic member and a sensor, the positioning pin has a receiving cavity, the trigger lever comprises a lever portion and a contact head arranged on the lever portion, the lever portion, the elastic member and the sensor are arranged in the receiving cavity, the lever portion and the sensor are spaced apart in the axial direction of the trigger lever, and the elastic member is arranged between the lever portion and the sensor; under the elastic force of the elastic member, the contact head protrudes from the insertion end of the positioning pin; when the contact head is subjected to an external force, the lever portion moves towards the sensor to trigger the sensor by overcoming the elastic force of the elastic member.

2. The positioning pin assembly of claim 1, wherein: The sensor is a proximity sensor.

3. The positioning pin assembly of claim 1, wherein: The diameter of the contact head is 1-3 mm.

4. The positioning pin assembly of claim 3, wherein: The lever portion near the insertion end of the positioning pin is in a stepped structure or a tapered structure.

5. The positioning pin assembly of claim 1, wherein: The positioning pin assembly further comprises a lead-out wire connected with the sensor, the positioning pin has a lead hole, and the lead-out wire is led out from the lead hole; the positioning pin assembly further comprises a protective sleeve arranged between the hole wall of the lead hole and the outer wall of the lead-out wire.

6. The positioning pin assembly of claim 5, wherein: The positioning pin comprises a pin body and a pin seat, a groove is arranged on the side surface of the side of the pin body facing the pin seat, and / or a groove is arranged on the side surface of the side of the pin seat facing the pin body, and the pin body and the pin seat are fixedly connected and surround the lead hole.

7. The positioning pin assembly of claim 5, wherein: The positioning pin comprises a pin body and a pin seat, the positioning pin assembly further comprises a fixing sleeve, the sensor is fixed in the fixing sleeve, and the outer wall of the fixing sleeve is provided with a fixing protrusion which is pressed between the pin body and the pin seat.

8. The positioning pin assembly of claim 1, wherein: The positioning pin assembly further comprises a fixing sleeve fixedly connected in the receiving cavity, and the sensor is screw-connected in the fixing sleeve.

9. The positioning pin assembly of any one of claims 1-8, wherein: The positioning pin is provided with a water guide hole which communicates between the inside and the outside of the receiving cavity.

10. The positioning pin assembly of any one of claims 1-8, wherein: The elastic member is a spring.

11. A positioning mechanism characterized by: The positioning pin assembly as claimed in any one of claims 1-10 is arranged on the driving end of a driving device.

12. The battery replacing device, characterized in that: The positioning mechanism as claimed in claim 11 is arranged on the seat body of a seat body, and the locking and unlocking mechanism is arranged on the seat body.

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