Connector assembly and new energy commercial vehicle frame for central battery replacement

Abstract

The utility model discloses a connector assembly and a new energy commercial vehicle frame for central battery replacement, which comprises a connector fixing seat fixed on the vehicle frame, a connector and a connecting assembly, the key points are that the connecting assembly comprises at least three connecting bolts arranged between the connector fixing seat and the connector, springs sleeved on the connecting bolts and limited between the connector fixing seat and the connector, and connecting nuts in threaded connection with the connecting bolts; the connecting end of the connecting bolt penetrates through a connecting hole in the connector, the spring and a mounting hole in the connector fixing seat are connected with the connecting nut, and the diameter of the connecting hole and the diameter of the mounting hole are larger than the diameter of a connecting part in the connecting bolt. By designing the connecting assembly, the connector can float within a certain range in the butt joint process of the connector and the battery assembly, successful butt joint of the connector and the battery assembly can be guaranteed, and the service life is prolonged.

Description

TECHNICAL FIELD

[0001] The utility model relates to new energy commercial vehicle technical field, concretely relates to a connector assembly and be used for the new energy commercial vehicle frame of middle -mounted type battery replacement. BACKGROUND

[0002] In the middle -mounted type battery replacement structure of new energy commercial vehicle, generally place battery assembly between the two longitudinal beams of vehicle and then realize the replacement of battery assembly through the mode of drawing, so that the battery with sufficient electric energy can be replaced in the battery replacement station to realize the purpose of fast energy supplement.

[0003] The applicant has previously applied for a kind of middle -mounted type battery assembly for new energy commercial vehicle (CN220639494U), including sliding bracket, high-pressure box and at least one battery box, connecting frame is provided on the sliding bracket, the high-pressure box and the battery box are sequentially fixed on the connecting frame along the length direction of the connecting frame, the bottom of the high-pressure box is limited in the high-pressure box limiting cavity of the connecting frame and / or the bottom of the battery box is limited in the battery box limiting cavity of the connecting frame.

[0004] A variety of guide structures and positioning structures are provided between the battery assembly and the frame to ensure that the battery assembly can be smoothly connected with the connector on the frame, such as setting guide strips on the frame to form guide structures with the grooves of the sliding bracket bottom rollers, setting positioning rods on the sliding bracket to cooperate with the positioning holes in the connector fixing seat for positioning.

[0005] In the prior art, the length of the guide strip is more than 3 meters, and errors will occur during manufacturing and installation, resulting in deviation between the connecting end of the battery assembly and the connector during docking, causing hard contact between the battery assembly and the connector during docking, causing wear of the connector or the battery assembly or even failure to dock, reducing the service life. Another situation is that if there is a problem in the program control during battery replacement, the stroke of the battery assembly pushed into the battery compartment exceeds the preset distance, which will push the connector and move backward, and if the connector and the connector fixing seat are hard connected, the connector will be damaged due to lack of floating amount. The connector is located inside the frame, so it is difficult to replace when damaged, and it will also affect normal battery replacement. SUMMARY

[0006] The utility model solves the technical problem to provide a kind of connector assembly and be used for the new energy commercial vehicle frame of middle -mounted type battery replacement, the connecting assembly of forming floating type structure is set between the connector and the connector fixing seat, can be self-adapting adjustment according to the position of the end of battery assembly during docking with battery assembly, to ensure that docking process is carried out smoothly, increase the fault tolerance of installation error and control program error, prolong the service life of the connector.

[0007] The utility model provides a connector assembly for middle -position formula battery replacement, including the connector fixed base of fixed on the frame, connector and the connecting assembly of setting between the connector fixed base and the connector, the key lies in: the connecting assembly includes at least three connecting bolts of setting between the connector fixed base and the connector, the spring of being sleeved on the connecting bolt and being limited between the connector fixed base and the connector and the connecting nut of being connected with the connecting bolt screw thread, the connecting end of connecting bolt passes through the connecting hole on the connector, the mounting hole on the spring and the connector fixed base is connected with the connecting nut, and the diameter of connecting hole and mounting hole is greater than the diameter of the connecting part in connecting bolt.

[0008] Further, the connecting nut is a locking nut.

[0009] Further, a limiting sleeve with a mounting hole is sleeved on the connector fixed base.

[0010] Further, a through hole is arranged on the connector fixed base for the inside of the connector to pass through.

[0011] Further, the connecting bolt is provided with four along the circumference of the through hole.

[0012] Further, a positioning boss is arranged on the connector, and a connector positioning hole matched with the positioning boss is arranged on the connector fixed base.

[0013] Further, a positioning assembly matched with a positioning rod in the battery assembly is arranged on the bottom of the electric connector fixed base, and the positioning assembly comprises a connecting sleeve connected with the electric connector fixed base and a wear-reducing sleeve fixed on the outside of the connecting sleeve.

[0014] Further, a guide boss is arranged on the inside of the wear-reducing sleeve and extends into the through hole of the connecting sleeve.

[0015] Further, a tapered hole is arranged in the wear-reducing sleeve to guide the positioning rod into the through hole of the wear-reducing sleeve. Based on the above-mentioned connector assembly, the utility model also provides a new energy commercial vehicle frame for middle -position formula battery replacement.

[0016] The utility model has the advantages that: the connector can float within a certain range during the docking process with the battery assembly by designing the connecting assembly, which can ensure the successful docking of the connector and the battery assembly, increase the fault tolerance rate of installation error and control program error, and prolong the service life of the connector. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is the structure schematic diagram of the utility model for middle -position formula battery replacement connector assembly.

[0018] Figure 2 is another structural schematic view of the connector assembly for the middle-mounted battery replacement of the utility model;

[0019] Figure 3 is a structural schematic view of the connector in the connector assembly for the middle-mounted battery replacement of the utility model;

[0020] Figure 4 is a structural schematic view of the wear-reducing sleeve in the connector assembly for the middle-mounted battery replacement of the utility model.

[0021] In the drawings, 1, connector fixing seat, 1-1, through hole, 1-2, connector positioning hole, 2, connector, 2-1, connecting hole, 2-2, positioning boss, 3, connecting bolt, 4, spring, 5, connecting nut, 6, limiting sleeve, 6-1, mounting hole, 7, connecting sleeve, 8, wear-reducing sleeve, 8-1, guide boss, 8-2, taper hole. DETAILED DESCRIPTION

[0022] Referring to the drawings Figures 1-4 The utility model provides a kind of connector assembly for the middle-mounted battery replacement, including the connector fixing seat 1 fixed on vehicle frame, connector 2 and the connecting assembly being arranged between connector fixing seat 1 and connector 2. Connecting assembly includes at least 3 connecting bolts 3 being arranged between connector fixing seat 1 and connector 2, spring 4 being sleeved on connecting bolt 3 and being limited between connector fixing seat 1 and connector 2 and connecting nut 5 being threadedly connected with connecting bolt 3. The connecting end of connecting bolt 3 is connected with connecting nut 5 by passing through connecting hole 2-1 on connector 2, spring 4 and mounting hole 6-1 on connector fixing seat 1.The diameter of connecting hole 2-1 and mounting hole 6-1 is greater than the diameter of the connecting portion in connecting bolt 3, so that connecting bolt 3 has movable space between connector 2 and connector fixing seat 1. By designing connecting assembly, when battery assembly is docked with connector 2, the connecting end of connector 2 can float within a certain range to form adaptive structure, which can ensure that battery assembly is successfully docked with connector 2, and prolong the service life of connector 2. When the moving distance of battery replacement assembly exceeds the preset distance due to problem in battery replacement procedure, connector 2 can also be prevented from being damaged.

[0023] To prevent relative rotation between connecting nut 5 and connecting bolt 3 after long time use, connecting nut 5 adopts locking nut.

[0024] Referring to the drawings Figure 2 Limiting sleeve 6 with mounting hole 6-1 is sleeved on connector fixing seat 1.The length of limiting sleeve 6 is greater than the thickness of corresponding connecting portion in fixing seat, to ensure the limiting effect on connecting bolt 3.

[0025] Referring to the drawingsFigure 1 And 2 In the process of connecting, the connector 2 will move to the fixed seat under the action of the battery assembly. In order to improve the compactness of the assembly, a through hole 1-1 is arranged on the connector fixed seat 1 for the inner side of the connector 2 to pass through. Four connecting bolts 3 and matching parts are arranged along the circumference of the through hole 1-1. Another function of the through hole 1-1 is to facilitate the connection of the cable matched with the connector 2.

[0026] A positioning boss 2-2 is arranged on the connector 2, and a connector positioning hole 1-2 matched with the positioning boss 2-2 is arranged on the connector fixed seat 1. The positioning boss 2-2 and the connector positioning hole 1-2 are designed to facilitate the identification of the installation direction of the connector 2 during installation.

[0027] Referring to the accompanying drawings Figure 1 、 2 And 4, a positioning assembly matched with the positioning rod in the battery assembly is arranged at the bottom of the electric connector fixed seat 1. The positioning assembly includes a connecting sleeve 7 connected with the electric connector fixed seat 1 and a wear-reducing sleeve 8 fixed outside the connecting sleeve 7. The inner side of the wear-reducing sleeve 8 is provided with a guide boss 8-1 extending into the through hole of the connecting sleeve 7. A tapered hole 8-2 is arranged in the wear-reducing sleeve 8 to guide the positioning rod into the through hole of the wear-reducing sleeve 8. The wear-reducing sleeve 8 is connected with the connecting sleeve 7 by a bolt. When the end of the wear-reducing sleeve 8 is worn after long-term use, it is convenient to replace it. Another function is to limit the battery assembly to prevent the battery assembly from being excessively contacted with the connector 2 when the battery assembly moves deviatedly, so as to prevent the spring 4 from being damaged due to excessive compression.

[0028] Based on the above-mentioned connector assembly, the utility model also provides a new energy commercial vehicle frame for middle-mounted battery replacement.

[0029] Finally, it is necessary to point out that: the above content is only used to help understand the technical scheme of the present application, and cannot be understood as the limitation of the protection scope of the present application; the non-essential improvements and adjustments made by the person skilled in the art based on the above content of the present application are all within the scope of the present application.

Claims

1. A connector assembly for mid-mount battery swap, comprising a connector fixing seat (1) fixed on a vehicle frame, a connector (2), and a connecting assembly arranged between the connector fixing seat (1) and the connector (2), characterized in that: The connecting assembly comprises at least three connecting bolts (3) arranged between the connector fixing base (1) and the connector (2), springs (4) sleeved on the connecting bolts (3) and limited between the connector fixing base (1) and the connector (2), and connecting nuts (5) threadedly connected with the connecting bolts (3), the connecting ends of the connecting bolts (3) are connected with the connecting nuts (5) through connecting holes (2-1) on the connector (2), the springs (4) and mounting holes (6-1) on the connector fixing base (1), and the diameters of the connecting holes (2-1) and the mounting holes (6-1) are greater than that of the connecting portions of the connecting bolts (3).

2. The connector assembly for middle-position battery swap according to claim 1, characterized in that: The connecting nuts (5) are locking nuts.

3. The connector assembly for middle-position battery swap of claim 1, wherein: A limiting sleeve (6) with the mounting hole (6-1) is sleeved on the connector fixing base (1).

4. The connector assembly for middle-position battery swap of claim 1, wherein: A through hole (1-1) is arranged on the connector fixing base (1) for the inner side of the connector (2) to pass through.

5. The connector assembly for middle-position battery swap of claim 4, wherein: The connecting bolts (3) are arranged in four along the circumference of the through hole (1-1).

6. The connector assembly for middle-position battery swap of claim 4, wherein: A positioning boss (2-2) is arranged on the connector (2), and a connector positioning hole (1-2) matched with the positioning boss (2-2) is arranged on the connector fixing base (1).

7. The connector assembly for middle-position battery swap according to any one of claims 1-6, characterized in that: A positioning assembly matched with a positioning rod in a battery assembly is arranged at the bottom of the electric connector fixing base (1), and the positioning assembly comprises a connecting sleeve (7) connected with the electric connector fixing base (1) and a wear-reducing sleeve (8) fixed on the outer side of the connecting sleeve (7).

8. The connector assembly for middle-position battery swap of claim 7, wherein: A guide boss (8-1) is arranged on the inner side of the wear-reducing sleeve (8) and extends into the through hole of the connecting sleeve (7).

9. The connector assembly for middle-position battery swap of claim 7, wherein: A tapered hole (8-2) is arranged in the wear-reducing sleeve (8) and guides the positioning rod to enter the through hole of the wear-reducing sleeve (8).

10. A new energy commercial vehicle frame for mid-mounted battery replacement, characterized in that: The connector assembly as claimed in any one of claims 1-9 is arranged on a vehicle frame.

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