Power conversion connector waterproof device, control system and engineering machinery

Abstract

The utility model discloses a waterproof device for a power conversion connector, a control system and engineering machinery. The waterproof device comprises a waterproof mechanism, a first proximity sensor and a second proximity sensor, the waterproof mechanism comprises a power part capable of providing torque, a water baffle and a connecting part; the power part is mounted on the bottom support close to the connector socket; the water baffle can completely cover the connector socket; the connecting part is connected between the power part and the water baffle, the water baffle can be driven to turn over through rotation of the power part, and then the connector socket is opened or closed; the first proximity sensor is used for detecting the lifting position of the battery changing box; and the second proximity sensor is used for detecting whether the water baffle is overturned in place after the connector socket is opened. According to the technical scheme of the utility model, pollutants such as water drops and dust are prevented from falling into the connector socket in the process of battery replacement, and the full-automatic operation of the starting and resetting process of the waterproof mechanism is realized.

Description

TECHNICAL FIELD

[0001] The utility model relates to a kind of battery replacement connector waterproof devices, belong to battery replacement technical field. BACKGROUND

[0002] Battery replacement connector is an important component of battery replacement system, connects battery replacement box and whole vehicle wire harness, and plays the role of transmission high-voltage large current and communication signal etc..In the battery replacement process of prior art, battery replacement connector will be separated, there is no shelter above connector socket, engineering machinery operating environment is relatively poor, water droplet and dust and other pollutants are easy to fall into connector socket.Water droplet will lead to insulation fault, short circuit, dirt or dust in connector socket will be accumulated to form insulation layer or form fine gap, leading to poor contact, while battery replacement connector carries larger current, connector heating, ablation and other phenomena are easy to appear, cause harm to whole vehicle electrical system.Therefore, a kind of battery replacement connector waterproof device needs to be designed to improve electrical system safety and whole vehicle performance stability.

[0003] Prior art (202310602367.X) proposes a kind of battery replacement connector waterproof device, first, waterproof mechanism is completed by the extension of oil cylinder push rod;Second, waterproof mechanism is arranged in the upper portion of battery replacement connector, when battery replacement box falls down, interference with waterproof device will be generated. SUMMARY

[0004] According to the deficiencies existing in prior art, the utility model provides a kind of battery replacement connector waterproof device and control system, first, waterproof mechanism is completed by the rotation of stepper motor;Second, stepper motor is arranged in the side of battery replacement connector, and interference with battery replacement box is avoided ingeniously using the structure of Z-shaped connecting arm;Third, failure measure of control system is increased.

[0005] The utility model is implemented according to the following technical solutions:

[0006] First, the utility model provides a kind of battery replacement connector waterproof device, including waterproof mechanism, first proximity sensor and second proximity sensor;Waterproof mechanism includes power component that can provide torque, water baffle and connecting component;Power component is installed on the bottom support close to connector socket, and the installation position of power component is lower than the installation position of connector socket;Water baffle can be completely covered on the connector socket;Connecting component is connected between the power component and water baffle, and the rotation of power component can drive water baffle to overturn, to open or close connector socket;First proximity sensor is installed on the bottom support close to connector socket, for detecting the lifting position of battery replacement box;Second proximity sensor is installed on the bottom support close to power component, for detecting whether water baffle is overturned in place after opening connector socket.

[0007] In some embodiments, the connecting component comprises:

[0008] a sleeve, sleeved on the rotating shaft of the power component, and detachably connected with the power component;

[0009] at least one connecting arm, integrally formed in a Z-shaped structure, matched with the step formed between the mounting position of the power component and the mounting position of the connector socket, one end of the connecting arm fixedly connected with the sleeve, and the other end fixedly connected with the water baffle.

[0010] In some embodiments, the sleeve is fixedly connected with the rotating shaft of the power component in a tight fit manner, or the sleeve is provided with a radial through hole, and the rotating shaft of the power component is provided with a radial threaded hole coaxially arranged with the radial through hole, and the sleeve is fixedly connected with the rotating shaft of the power component by screwing a screw into the radial threaded hole.

[0011] In some embodiments, the first proximity sensor is an ultrasonic proximity sensor, and the second proximity sensor is an inductive proximity sensor.

[0012] In some embodiments, the power component is a stepping motor.

[0013] In a second aspect, the utility model provides a kind of waterproof control system of battery swap connector, comprising:

[0014] the waterproof device of battery swap connector described above;

[0015] main controller, input respectively with the first proximity sensor and second proximity sensor electrically connected, output and the power component electrically connected;

[0016] instrument, with the main controller electrically connected, operator enters battery swap mode by instrument, on the one hand, instrument can display the position data of battery swap box in real time, on the other hand, instrument can show that water baffle is turned to position information after opening connector socket;

[0017] walking alarm, with the output of the main controller electrically connected, the main controller controls walking alarm to alarm when not receiving the water baffle turn to position signal sent by the second proximity sensor.

[0018] In some embodiments, further comprising:

[0019] manual switch, with the power component electrically connected, and the power component circuit is turned on by operating manual switch, to start power component and drive water baffle to turn.

[0020] In some embodiments, the manual switch is installed on the bottom support; the walking alarm is installed on the top of the cab; and the main controller and the instrument are installed in the cab.

[0021] In a third aspect, the utility model provides an engineering machinery, install above -mentioned battery replacement connector waterproof device, or, install above -mentioned battery replacement connector waterproof control system.

[0022] In some embodiments, the engineering machinery comprises an excavator.

[0023] The utility model has the advantages of:

[0024] (1) the waterproof mechanism can prevent water droplets, dust and other pollutants from falling into the connector socket during battery replacement, and through the design of the Z-shaped connecting arm, the waterproof mechanism is reset to avoid interference with the battery replacement box.

[0025] (2) through the use of proximity sensors, the waterproof mechanism starting and resetting process is fully automated.

[0026] (3) when the waterproof mechanism cannot be opened in time due to abnormality, the walking alarm will work to remind the driver, with high safety.

[0027] (4) when the control system fails, the waterproof mechanism can be controlled by the manual switch to start and reset, with high reliability. BRIEF DESCRIPTION OF DRAWINGS

[0028] The accompanying drawings, which are part of the present utility model, serve to provide a further understanding of the present utility model, and the illustrative embodiments of the present utility model and their descriptions serve to explain the present utility model, but do not constitute undue limitations on the present utility model. Obviously, the drawings described below are only some embodiments, and other drawings can be obtained from these drawings without creative labor for those skilled in the art.

[0029] In the drawings:

[0030] Figure 1 is a schematic diagram of the battery replacement connector waterproof device of the utility model (water baffle closed state);

[0031] Figure 2 is a schematic diagram of the waterproof mechanism of the utility model;

[0032] Figure 3 is a schematic diagram of the battery replacement connector waterproof device of the utility model (water baffle open state);

[0033] Figure 4 is a schematic diagram of the battery replacement connector waterproof control system of the utility model;

[0034] Figure 5The utility model discloses a battery replacing connector waterproof control system flow chart.

[0035] The drawing mark is: 1 - connector socket, 2 - bottom support, 3 - waterproof mechanism, 4 - second proximity sensor, 5 - first proximity sensor, 6 - instrument, 7 - walking alarm, 8 - main controller, 9 - manual switch, 31 - step motor, 32 - sleeve, 33 - connecting arm, 34 - fender.

[0036] It needs to be explained that these drawings and literal descriptions do not aim at limiting the concept range of the utility model in any way, but illustrate the concept of the utility model for the person skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION

[0037] In order to make the purpose, technical scheme and advantage of the utility model embodiment more clear, the technical scheme in the embodiment will be clearly and completely described by combining with the drawings in the utility model embodiment below, and the following embodiment is used to illustrate the utility model, but not to limit the range of the utility model.

[0038] In the description of the utility model, it needs to be explained that the orientation or position relation indicated by the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "inner", "outer" and the like is the orientation or position relation based on the drawing shown, and is only for the convenience of describing the utility model and simplifying the description, and therefore cannot be understood as the limitation to the utility model that the indicated device or element must have the specific orientation, be constructed and operated in the specific orientation.

[0039] In the description of the utility model, it needs to be explained that unless another explicit provision and limitation, the terms "mounting", "connecting", "connection" should be understood in a broad sense, for example, can be fixed connection, can also be detachable connection, or integrally connected, can be mechanical connection, can also be electrical connection, can be directly connected, or indirectly connected through the intermediate medium. For the person skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific situation.

[0040] As Figure 1 , Figure 3As shown, a waterproof device for a battery swapping connector includes a waterproof mechanism 3, a first proximity sensor 5, and a second proximity sensor 4. The waterproof mechanism 3 includes a power component capable of providing torque, a water baffle 34, and a connecting component. The power component is mounted on a base 2 near the connector socket 1, and the mounting position of the power component is lower than the mounting position of the connector socket 1. The water baffle 34 can completely cover the connector socket 1. The connecting component is connected between the power component and the water baffle 34. The rotation of the power component can drive the water baffle 34 to flip, thereby opening or closing the connector socket 1. The first proximity sensor 5 is mounted on the base 2 near the connector socket 1 to detect the lifting position of the battery swapping box. The second proximity sensor 4 is mounted on the base 2 near the power component to detect whether the water baffle 34 has flipped into place after the connector socket 1 is opened.

[0041] The following is a further explanation of the connecting components mentioned above.

[0042] like Figure 2 As shown, the connecting component includes a sleeve 32 and at least one connecting arm 33; the sleeve 32 is fitted onto the rotating shaft of the power component, and the two are detachably connected together; the connecting arm 33 has an overall Z-shaped structure, which matches the step formed between the installation position of the power component and the installation position of the connector socket 1; one end of the connecting arm 33 is fixedly connected to the sleeve 32, and the other end is fixedly connected to the baffle plate 34.

[0043] Preferred solution: The sleeve 32 is fixed to the shaft of the power component in a tight fit; or, the sleeve 32 is provided with a radial through hole, and the shaft of the power component is provided with a radial threaded hole arranged coaxially with the radial through hole. After the screw is inserted into the radial through hole, it is tightened into the radial threaded hole to fix the sleeve 32 and the shaft of the power component together.

[0044] It should be noted that the sleeve 32 is detachably connected to the rotating shaft. When the waterproof mechanism 3 fails, the sleeve 32, connecting arm 33, and baffle 34 can be manually removed from the rotating shaft of the power unit to ensure the smooth operation of the battery swapping process. The connecting arm 33 has a Z-shaped structure, which prevents interference between the waterproof mechanism 3 and the base 2 and the battery swapping box 1 after the waterproof mechanism 3 is reset. The baffle 34 is fixedly connected to the connecting arm 33 and can be made of plastic.

[0045] Preferred scheme: the first proximity sensor 5 adopts ultrasonic proximity sensor (the transmitter emits ultrasonic waves, the sound wave is reflected back after hitting the object, the reflected ultrasonic wave is intercepted by the receiver, and then the distance of the object is judged according to the information), which can detect whether the battery box rises or falls, and transmit the signal to the main controller 8 in real time, so that the water baffle 34 is closed or reset after the battery box reaches a certain position; the second proximity sensor 4 adopts inductive proximity sensor (detects metal objects by electromagnetic field, the sensing range is from several millimeters to 60 millimeters), which can detect whether the water baffle 34 is reset, and feed back the signal to the main controller 8, and the reset state is as shown in the accompanying Figure 3 Power components adopt stepping motor 31 (also called pulse motor, which controls the rotation angle and speed of the motor through input pulse signal).

[0046] As can be seen from the above, the utility model provides a kind of battery replacement connector waterproof device, overall technical scheme is first according to the position state of battery replacement box in the process of battery replacement, to open or close water baffle: 1.when the battery replacement box of power shortage is lifted from whole machine, waterproof mechanism can close water baffle in time to prevent water drop and dust and other pollutants from falling into connector socket;2.when the battery replacement box of full power is lifted to whole machine, waterproof mechanism can open water baffle in time to realize the smooth docking of connector plug on battery replacement box and connector socket on bottom support, finally design control system controls stepping motor rotation, to drive the opening and closure of water baffle.

[0047] As Figure 4 shown, a kind of battery replacement connector waterproof control system, including above-mentioned battery replacement connector waterproof device, main controller 8, instrument 6 and walking alarm 7;The input end of main controller 8 is electrically connected with first proximity sensor 5 and second proximity sensor 4 respectively, and the output end is electrically connected with stepping motor 31;Instrument 6 is electrically connected with main controller 8, operator enters battery replacement mode through instrument 6, one side instrument 6 can display the position data of battery replacement box in real time, the other side instrument 6 can show that water baffle 34 is turned over to place information after opening connector socket 1;Walking alarm 7 is electrically connected with the output end of main controller 8, when main controller 8 does not receive the water baffle 34 turn-over-to-place signal sent by second proximity sensor 4, main controller 8 controls walking alarm 7 to alarm.

[0048] Further scheme, as Figure 4 shown, it further includes manual switch 9, manual switch 9 is electrically connected with stepping motor 31, and manual switch is used to turn on stepping motor 31 circuit, to start stepping motor 31 and drive water baffle 34 to turn over.

[0049] Preferred scheme: manual switch 9 is installed on bottom support 2;Walking alarm 7 is installed on the top of cab;Main controller 8 and instrument 6 are installed in cab.

[0050] In summary, the above-mentioned battery replacement connector waterproof control system realizes the following functions and effects:

[0051] (1) The waterproof mechanism can prevent water droplets and dust and other pollutants from falling into the connector socket during the battery replacement process, and through the design of the Z-shaped connecting arm, the waterproof mechanism is avoided from interfering with the battery replacement box after resetting.

[0052] (2) Through the use of proximity sensors, the process of starting and resetting the waterproof mechanism is fully automated.

[0053] (3) When the waterproof mechanism cannot be opened in time due to abnormalities, the walking alarm will work to remind the driver, which is highly safe.

[0054] (4) When the control system fails, the starting and resetting of the waterproof mechanism can be controlled manually, which is highly reliable.

[0055] As shown in Figure 5 , after the driver enters the battery replacement mode through the instrument 6, the first proximity sensor 5 will monitor the position data of the battery replacement box and display it through the instrument;

[0056] If the battery replacement box is away from the bottom support 2 and reaches the set distance, the main controller 8 drives the stepping motor 31 to rotate, and the waterproof device 3 starts; if the waterproof device 3 does not start, the manual switch 9 needs to be operated to start the waterproof device 3; if the waterproof device 3 still does not start at this time, it means that the stepping motor 31 has a fault and needs to be repaired.

[0057] If the battery replacement box approaches the bottom support 2 and reaches the set distance, the main controller 8 drives the stepping motor 31 to rotate, and the waterproof mechanism 3 resets; if the main controller 8 receives the signal of the second proximity sensor 4 closing, the control ends and enters the next cycle; if the main controller 8 does not receive the signal of the second proximity sensor 4 closing, it means that the waterproof mechanism 3 has not reset successfully, the walking alarm 7 starts to alarm, and the battery replacement process is temporarily terminated, and the manual switch 9 needs to be operated to start the waterproof mechanism 3; if the waterproof mechanism 3 still does not start at this time, it means that the stepping motor 31 has a fault, at which time the sleeve 32 can be temporarily removed from the shaft of the stepping motor 31 to continue the work of battery replacement.

[0058] The engineering machinery provided by the present application is described below, and the engineering machinery described below can be correspondingly referred to the battery replacement connector waterproof control system described above.

[0059] The engineering machinery provided by the present application can include the battery replacement connector waterproof control system described in any one of the above embodiments.

[0060] The beneficial effects achieved by the engineering machinery provided by the present application are consistent with the beneficial effects achieved by the battery replacement connector waterproof control system provided by the present application, and therefore will not be described again here.

[0061] It should be noted that the above construction machine can be a shovel.

[0062] In the description provided herein, a large number of specific details are illustrated. However, it can be understood that the embodiments of the present application can be practiced without these specific details. In some instances, well-known methods, structures and techniques have not been shown in detail in order not to obscure the understanding of this description.

[0063] In addition, those skilled in the art can understand that although some embodiments described herein include certain features included in other embodiments but not others, combinations of features of different embodiments are also meant to be within the scope of the present application and form different embodiments. For example, in the above embodiments, those skilled in the art can use in a combined manner according to the known technical solutions and the technical problems to be solved by the present application.

[0064] The above is only the preferred embodiment of the present application, and does not limit the present application in any form. Although the present application has been disclosed as above with the preferred embodiment, it is not intended to limit the present application. Any skilled person in the art can make some changes or modifications to the above-mentioned technical content without departing from the scope of the technical solution of the present application, and any simple modification, equivalent change and modification of the above-mentioned technical content, which does not depart from the technical solution of the present application, is still within the scope of the present application.

Claims

1. A waterproof device for battery swap connector, characterized in that, The waterproof device comprises: a waterproof mechanism comprising: a power component capable of providing torque, which is installed on a bottom support close to the connector socket, and the installation position of the power component is lower than that of the connector socket; a water baffle capable of completely covering the connector socket; a connecting component connected between the power component and the water baffle, which can drive the water baffle to flip and thus open or close the connector socket through rotation of the power component; a first proximity sensor installed on the bottom support close to the connector socket, which is used to detect the lifting position of the battery box; a second proximity sensor installed on the bottom support close to the power component, which is used to detect whether the water baffle is flipped to the position after the connector socket is opened.

2. The waterproof device for battery swap connector according to claim 1, characterized in that, The connecting component comprises: a sleeve which is sleeved on the rotating shaft of the power component and is detachably connected with the power component; at least one connecting arm which is in a Z-shaped structure and matches the step formed between the installation position of the power component and the installation position of the connector socket, one end of the connecting arm is fixedly connected with the sleeve, and the other end is fixedly connected with the water baffle.

3. The waterproof device for the battery replacement connector according to claim 2, wherein: the sleeve is fixedly connected with the rotating shaft of the power component in a tight fit manner; or the sleeve is provided with a radial through hole, and the rotating shaft of the power component is provided with a radial threaded hole which is coaxially arranged with the radial through hole, and the sleeve and the rotating shaft of the power component are fixedly connected by screwing a screw into the radial threaded hole through the radial through hole.

4. The waterproof device for the battery replacement connector according to claim 1, wherein: the first proximity sensor is an ultrasonic proximity sensor, and the second proximity sensor is an inductive proximity sensor.

5. The waterproof device for the battery replacement connector according to claim 1, wherein: the power component is a stepping motor.

6. A battery replacement connector waterproof control system, characterized by, The waterproof device for the battery replacement connector according to any one of claims 1 to 5; a main controller, an input end of which is electrically connected with the first proximity sensor and the second proximity sensor, and an output end of which is electrically connected with the power component; an instrument, which is electrically connected with the main controller, and through which an operator enters the battery replacement mode, on one hand, the instrument can display the position data of the battery box in real time, and on the other hand, the instrument can display the information that the water baffle is flipped to the position after the connector socket is opened; a walking alarm, which is electrically connected with the output end of the main controller, and the main controller controls the walking alarm to alarm when the main controller does not receive the signal that the water baffle is flipped to the position sent by the second proximity sensor. The waterproof device for the battery replacement connector according to any one of claims 1 to 5 further comprises:

7. The battery swap connector waterproof control system of claim 6, wherein, a manual switch, which is electrically connected with the power component, and through which the power component circuit is turned on, and thus the power component drives the water baffle to flip.

8. The waterproof control system for the battery replacement connector according to claim 7, wherein: the manual switch is installed on the bottom support, the walking alarm is installed on the top of the cab, and the main controller and the instrument are installed in the cab.

9. An engineering machine, comprising: ​ The battery swap connector waterproof device of any one of claims 1-5 is installed; or the battery swap connector waterproof control system of any one of claims 6-8 is installed.

10. A working machine according to claim 9, characterized in that: The working machine comprises an excavator.

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