Automatic protection mechanism for new energy mine card power conversion connector

Abstract

The invention relates to the technical field of power conversion mine card charging protection, and provides an automatic protection mechanism for a new energy mine card power conversion connector, which comprises a rotating shaft rotationally arranged on a connector main body, and a protection plate rotating around the rotating shaft and used for rotating downwards to shield the upper end of the connector main body or rotating upwards to open the upper end of the connector main body; one end of the stay wire is wound on the rotating shaft for driving the rotating shaft to rotate upwards to open the upper end of the connector main body; the transmission part is rotationally arranged on the ground charging bracket and is provided with a triggering part and a moving part, the triggering part is used for abutting against the outer wall of the battery pack and drives the moving part to move, and the moving part is connected with the other end of the pull wire; one end of the reset elastic member acts on the protection plate, and the other end acts on the side wall of the connector body or the ground charging bracket, and is used for providing downward rotation reset force for the protection plate. By means of the technical scheme, the problems that in the prior art, an extra power source is needed, cost is high, or the structure is complex and applicability is low are solved.

Description

Technical Field

[0001] The present invention relates to the field of charging protection technology for a power-swap mining card, and in particular to an automatic protection mechanism for a power-swap connector for a new energy mining card. Background Art

[0002] With the development of new energy, mining cars are gradually adopting new energy electric vehicles in large quantities. Due to the limitations of current charging technology, battery swapping is called a convenient and fast way to replenish energy for mining cars. The battery pack of the battery swapping mining car can be directly replaced, and the removed battery pack can be installed on the ground charging bracket for charging.

[0003] A battery swap connector is provided on the ground charging bracket, which is electrically connected to the battery pack. When there is no battery pack charging, the battery swap connector is exposed to the outside. Dust and water droplets falling into the high-voltage connector will cause the connector to short-circuit, corrode and have poor contact. Therefore, a dustproof and waterproof mechanism must be provided above the high-voltage connector. Some protective mechanisms use motors or cylinders as power sources to move the dustproof and waterproof shield from the side of the high-voltage connector to the top of the high-voltage connector to block dust and water droplets. This type of dustproof and waterproof mechanism requires an additional power source, a complex system structure, high economic cost and low reliability. Some protective mechanisms use a cam-link mechanism (reference patent: Announcement No.: CN115275687A A dustproof and waterproof system for an unpowered charging base for a high-voltage connector). This mechanism has a complex structure, occupies a large space, and is only suitable for specific top battery swap structures, and is not suitable for promotion.

[0004] When the battery pack of a mining truck is replaced and charged, the existing dust and water proof mechanism requires an additional power source, which is costly or has a complex structure and low applicability, which needs to be solved. Summary of the invention

[0005] The technical problem to be solved by the present invention is to provide an automatic protection mechanism for a new energy mining truck power replacement connector in response to the above-mentioned technical deficiencies, which solves the problem that the prior art requires an additional power source with high cost or has a complex structure and low applicability.

[0006] The technical solution adopted by the present invention is to provide an automatic protection mechanism for a new energy mining truck power replacement connector, comprising:

[0007] A protective plate having a rotating shaft, the rotating shaft being rotatably arranged on the connector body, the protective plate rotating around the rotating shaft, and being used for rotating downward to cover the upper end of the connector body or rotating upward to open the upper end of the connector body;

[0008] A pull wire, one end of which is wound around the rotating shaft and is used to drive the rotating shaft to rotate upward to open the upper end of the connector body;

[0009] A transmission member is rotatably arranged on the ground charging bracket, the transmission member has a triggering part and a moving part, the triggering part is used to abut against the outer wall of the battery pack, the triggering part drives the moving part to move, and the moving part is connected to the other end of the pull wire and is used to pull the pull wire;

[0010] A reset elastic member, one end of which acts on the protective plate, and the other end of which acts on the side wall of the connector body or the ground charging bracket, is used to provide a force for the protective plate to rotate downward and reset.

[0011] Further optimizing the technical solution, the transmission member is an accelerator pedal, and the transmission member is vertically rotatably arranged on the side wall of the ground charging bracket; further comprising:

[0012] The wire tube is sleeved on the outside of the pull wire;

[0013] A positioning bracket has one end fixedly arranged on the side wall of the connector body and the other end fixedly fixed on the end of the wire tube close to the rotating shaft.

[0014] To further optimize the technical solution, one end of the rotating shaft is provided with a first roller, and one end of the pulling wire is wound around the roller.

[0015] Further optimization of this technical solution also includes:

[0016] A mounting plate, disposed on the connector body;

[0017] The bearing is arranged on the mounting plate, the rotating shaft is sleeved in the bearing, and the rotating shaft is rotatably arranged on the connector body through the bearing.

[0018] To further optimize the technical solution, the resetting elastic member is a torsion spring, the torsion spring is sleeved on the rotating shaft, one end of the torsion spring acts on the side wall of the connector body, and the other end acts on the protective plate.

[0019] To further optimize the technical solution, the resetting elastic member is a tension spring.

[0020] To further optimize the technical solution, the other end of the rotating shaft has a second roller, and further includes:

[0021] A pull rope has one end wound around the second roller and the other end connected to one end of the tension spring. One end of the tension spring acts on the rotating shaft through the pull rope.

[0022] Further optimization of this technical solution also includes:

[0023] A turnbuckle bolt has one end connected to the ground charging bracket and the other end connected to the other end of the tension spring. The other end of the tension spring acts on the ground charging bracket through the turnbuckle bolt.

[0024] To further optimize the technical solution, the protective plate has flanges on all four sides, the rotating shaft is located on one of the flanges, and the flanges are located on the periphery of the connector body.

[0025] The beneficial effects of the present invention are:

[0026] 1. After the battery pack descends into the ground charging bracket, it can abut against the trigger part of the extrusion transmission part to move the moving part, pull the pull wire, and the pull wire wrapped around the shaft can drive the shaft to rotate, that is, drive the protective plate to rotate upward, open the connector body, and facilitate docking and charging. It can operate automatically only by the pressure of the battery entering the ground charging bracket, without the need for an additional power source; after the battery pack exits, the protective plate automatically covers the battery replacement connector to protect it.

[0027] 2. It uses a purely mechanical structure, runs smoothly, has a simple and reliable structure, low cost, easy maintenance, high applicability, and is easy to promote; it can effectively protect the connector body from water and dust; it automatically opens during battery installation, without manual intervention, which is convenient and quick. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a schematic diagram of the structure of the installation state of the present invention;

[0029] Figure 2 It is a structural schematic diagram of the present invention;

[0030] Figure 3 It is a schematic diagram of the structure of the protective plate of the present invention;

[0031] Figure 4 It is a schematic diagram of the rotating shaft structure of the present invention;

[0032] Figure 5 It is a schematic diagram of the structure of the accelerator pedal of the present invention;

[0033] Figure 6 It is a schematic diagram of the installation structure of the tension spring of the present invention;

[0034] Figure 7 It is a schematic diagram of the installation structure of the torsion spring of the present invention;

[0035] Explanation of marks in the figure: 1. Protective plate; 101. Rotating shaft; 1011. First roller; 1012. Second roller; 102. Flanging; 2. Pull wire; 3. Transmission member; 301. Trigger part; 302. Moving part; 4. Reset elastic member; 401. Torsion spring; 402. Tension spring; 5. Wire tube; 6. Positioning bracket; 7. Mounting plate; 701. Bearing; 8. Pull rope; 9. Turnbuckle bolt; 10. Ground charging bracket; 11. Connector body. DETAILED DESCRIPTION

[0036] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0037] In order to simplify the drawings, only the parts related to the invention are schematically shown in each figure, and they do not represent the actual structure of the product. In addition, in order to simplify the drawings and facilitate understanding, in some figures, only one of the parts with the same structure or function is schematically shown, or only one of them is marked. In this article, "one" not only means "only one", but also means "more than one", and "several" includes "two" and "more than two".

[0038] In this document, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0039] In addition, in the description of the present application, the terms "first", "second", etc. are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0040] like Figure 1-7 As shown, an automatic protection mechanism for a new energy mining truck power exchange connector comprises: a protection plate 1, having a rotating shaft 101, the rotating shaft 101 is rotatably arranged on a connector body 11, the protection plate 1 rotates around the rotating shaft 101, and is used to rotate downward to block the upper end of the connector body 11 or rotate upward to open the upper end of the connector body 11; a pull wire 2, one end of which is wound around the rotating shaft 101, and is used to drive the rotating shaft 101 to rotate upward to open the upper end of the connector body 11; a transmission member 3, which is rotatably arranged on a ground charging bracket 10, and the transmission member 3 has a triggering part 301 and a moving part 302, the triggering part 301 is used to abut against the outer wall of the battery pack, the triggering part 301 drives the moving part 302 to move, and the moving part 302 is connected to the other end of the pull wire 2 for pulling the pull wire 2; a reset elastic member 4, one end of which acts on the protection plate 1, and the other end acts on the side wall of the connector body 11 or the ground charging bracket 10, and is used to provide a force for the protection plate 1 to rotate downward and reset.

[0041] When in use, after the battery pack enters the ground charging bracket 10, it is electrically connected to the connector body 11 for charging. When the battery pack descends into the ground charging bracket 10, the transmission member 3 is triggered to open the protective plate 1, and the connector body 11 is exposed. Then the battery pack continues to fall and is electrically connected to the connector body 11. When the battery pack is fully charged and exits, the battery pack no longer applies pressure to the transmission member 3, and the protective plate 1 automatically rotates downward and resets under the action of the reset elastic member 4, shielding the upper end of the connector body 11 to achieve dust and water protection.

[0042] The transmission member 3 can be a lever structure or a connecting rod structure. The trigger part 301 on one side is squeezed by the battery pack and displaced, which drives the moving part 302 on the other side to move. Through the principle of the lever or the action of the connecting rod, the moving part 302 can amplify the displacement of the trigger part 301 to meet the moving distance of the pull wire 2. The pull wire 2 is wound around the end of the shaft 101. After the pull wire 2 is pulled, the wound part is gradually released, driving the shaft 101 to rotate, so that the protective plate 1 rotates upward to open the upper end of the connector body 11. When the protective plate 1 rotates upward to open, the reset elastic member 4 accumulates elastic potential energy. After the trigger part 301 of the transmission member 3 is no longer subjected to force, the elastic potential energy of the reset elastic member 4 is released, so that the protective plate 1 flips downward and resets to cover the upper end of the connector body 11.

[0043] Furthermore, the transmission member 3 is an accelerator pedal, and the transmission member 3 is vertically rotatably arranged on the side wall of the ground charging bracket 10; it also includes: a wire tube 5, which is sleeved on the outside of the pull wire 2; a positioning bracket 6, one end of which is fixedly arranged on the side wall of the connector body 11, and the other end is fixed to the end of the wire tube close to the rotating shaft 101.

[0044] When in use, the transmission member 3 can be an accelerator pedal, which is a mature product with high stability and low cost. In the accelerator pedal, the rotating pedal is the trigger part 301, and the moving part 302 is formed by enlarging the lever structure. The moving part 302 is connected to the pull rope 8 to pull the pull rope 2. The transmission member 3 is vertically arranged on the vertical side of the ground charging bracket 10, that is, it can be triggered during the descent of the battery pack to open the protective plate 1.

[0045] The wire tube 5 and the positioning bracket 6 can guide and protect the path of the pull wire 2, so that the transmission member 3 can be installed in a suitable position, and the pull wire 2 can be pulled when the moving part 302 moves.

[0046] Furthermore, one end of the rotating shaft 101 has a first roller 1011 , and one end of the pulling wire 2 is wound around the roller.

[0047] When in use, one end of the rotating shaft 101 has a first roller 1011, which is convenient for winding the end of the pull wire 2. The diameter of the first roller 1011 can be selected through experiments or measurements so that the pull wire 2 can drive the rotating shaft 101 to rotate a sufficient angle within the moving stroke of the moving part 302 to open the protective plate 1.

[0048] Furthermore, it also includes: a mounting plate 7, which is arranged on the connector body 11; a bearing 701, which is arranged on the mounting plate 7, and the rotating shaft 101 is sleeved in the bearing 701, and the rotating shaft 101 is rotatably arranged on the connector body 11 through the bearing 701.

[0049] When in use, the rotating shaft 101 is rotatably mounted on the connector body 11 through the bearing 701 and the mounting plate 7, and the rotation is smoother.

[0050] Furthermore, the resetting elastic member 4 is a torsion spring 401 , which is sleeved on the rotating shaft 101 , with one end of the torsion spring 401 acting on the side wall of the connector body 11 , and the other end of the torsion spring 401 acting on the protective plate 1 .

[0051] When in use, the resetting elastic member 4 can be a torsion spring 401. When the protective plate is opened, the torsion spring 401 stores energy. After the transmission member 3 loses the pressure of the battery pack, the torsion spring 401 is released, pushing the protective plate 1 back to its original position, shielding the upper end of the connector body 11. At this time, the shaft 101 rotates, so that the end of the pull wire 2 is wound around the shaft 101 again. The torsion spring 401 is a conventional elastic member, and those skilled in the art know how to install it. One end of the torsion spring 401 can act on the mounting plate 7, and act on the connector body 11 through the mounting plate 7.

[0052] Further, the resetting elastic member 4 is a tension spring 402. The other end of the rotating shaft 101 has a second roller 1012, and further includes: a pull rope 8, one end of which is wound around the second roller 1012, and the other end is connected to one end of the tension spring 402, and one end of the tension spring 402 acts on the rotating shaft 101 through the pull rope 8.

[0053] When in use, the resetting elastic member 4 may also be a tension spring 402, and the tension spring 402 stores energy when the protective plate 1 is opened.

[0054] When the protective plate 1 is opened, the end of the pull rope 8 is wound around the second roller 1012. After the transmission member 3 loses the pressure of the battery pack, the tension spring 402 pulls the pull rope 8, and the pull rope 8 wound around the second roller 1012 drives the rotating shaft 101 to rotate, so that the protective plate 1 rotates downward to cover the connector body 11. The first roller 1011 and the second roller 1012 are respectively located on both sides of the rotating shaft 101.

[0055] Furthermore, it also includes: a turnbuckle bolt 9, one end of which is connected to the ground charging bracket 10, and the other end is connected to the other end of the tension spring 402, and the other end of the tension spring 402 acts on the ground charging bracket 10 through the turnbuckle bolt 9.

[0056] When in use, one end of the tension spring 402 is fixed by a turnbuckle bolt 9. When the protective plate 1 is in a closed state, that is, when covering the upper end of the connector, the installation of the tension spring 402 can stretch it and provide a certain preload force. At the same time, the size of the preload force can be adjusted by changing the length of the turnbuckle bolt 9.

[0057] Furthermore, the protective plate has flanges 102 on all four sides, the rotating shaft 101 is located on one of the flanges 102 , and the flange 102 is located on the periphery of the connector body 11 .

[0058] When in use, the protective plate 1 may have flanges 102 on all sides, which are perpendicular to the main body of the protective plate 1 and are arranged around the connector body 11 to improve the closed protection effect. At the same time, the shaft 101 is located at the lower end of one of the flanges 102, and one end of the torsion spring 401 can act on the flange 102 on one side of the shaft 101.

[0059] It is to be understood that the present invention is described by some embodiments, and it is known to those skilled in the art that various changes or equivalent substitutions may be made to these features and embodiments without departing from the spirit and scope of the present invention. In addition, under the teachings of the present invention, these features and embodiments may be modified to adapt to specific circumstances and materials without departing from the spirit and scope of the present invention. Therefore, the present invention is not limited by the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are within the scope of protection of the present invention.

Claims

1. An automatic protection mechanism for a new energy mining card power replacement connector, characterized in that: include: A protective plate (1) having a rotating shaft (101), wherein the rotating shaft (101) is rotatably arranged on a connector body (11), and the protective plate (1) rotates around the rotating shaft (101) to rotate downward to cover the upper end of the connector body (11) or rotate upward to open the upper end of the connector body (11); A pull wire (2), one end of which is wound around the rotating shaft (101) and is used to drive the rotating shaft (101) to rotate upward to open the upper end of the connector body (11); A transmission member (3) is rotatably arranged on a ground charging bracket (10), the transmission member (3) comprising a triggering portion (301) and a moving portion (302), the triggering portion (301) being used to abut against an outer wall of a battery pack, the triggering portion (301) driving the moving portion (302) to move, the moving portion (302) being connected to the other end of the pull wire (2) and being used to pull the pull wire (2); A resetting elastic member (4) has one end acting on the protective plate (1) and the other end acting on the side wall of the connector body (11) or the ground charging bracket (10), and is used to provide a force for the protective plate (1) to rotate downward and reset.

2. The automatic protection mechanism for the power replacement connector of a new energy mining card according to claim 1 is characterized in that: The transmission member (3) is an accelerator pedal, and the transmission member (3) is vertically rotatably arranged on the side wall of the ground charging bracket (10); and further comprises: A wire tube (5) is sleeved on the outside of the pull wire (2); A positioning bracket (6) has one end fixedly disposed on the side wall of the connector body (11) and the other end fixedly disposed on the end of the wire tube (5) close to the rotating shaft (101).

3. The automatic protection mechanism for the power replacement connector of a new energy mining card according to claim 2 is characterized in that: One end of the rotating shaft (101) is provided with a first roller (1011), and one end of the pulling wire (2) is wound around the first roller (1011).

4. The automatic protection mechanism for the power replacement connector of a new energy mining card according to claim 3 is characterized in that: Also includes: A mounting plate (7) arranged on the connector body (11); The bearing (701) is arranged on the mounting plate (7), the rotating shaft (101) is sleeved in the bearing (701), and the rotating shaft (101) is rotatably arranged on the connector body (11) through the bearing (701).

5. The automatic protection mechanism for the power replacement connector of a new energy mining card according to claim 1 is characterized in that: The resetting elastic member (4) is a torsion spring (401), which is sleeved on the rotating shaft (101), one end of the torsion spring (401) acts on the side wall of the connector body (11), and the other end acts on the protective plate (1).

6. The automatic protection mechanism for the power replacement connector of a new energy mining card according to claim 3 is characterized in that: The resetting elastic member (4) is a tension spring (402).

7. The automatic protection mechanism for the power replacement connector of a new energy mining card according to claim 6 is characterized in that: The other end of the rotating shaft (101) is provided with a second roller (1012), and further comprises: A pull rope (8) has one end wound around the second roller (1012) and the other end connected to one end of the tension spring (402). One end of the tension spring (402) acts on the rotating shaft (101) through the pull rope (8).

8. The automatic protection mechanism for the power replacement connector of a new energy mining card according to claim 7 is characterized in that: Also includes: A turnbuckle bolt (9) has one end connected to the ground charging bracket (10) and the other end connected to the other end of the tension spring (402). The other end of the tension spring (402) acts on the ground charging bracket (10) through the turnbuckle bolt (9).

9. The automatic protection mechanism for the power replacement connector of a new energy mining card according to claim 1 is characterized in that: The protective plate (1) has flanges (102) on all four sides, the rotating shaft (101) is located on one of the flanges (102), and the flange (102) is located on the periphery of the connector body (11).

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