Cable state monitoring mechanism and charging pile

Abstract

The utility model belongs to the field of charging pile, specifically disclose cable state monitoring mechanism and charging pile, wherein, cable state monitoring mechanism, including protection subassembly and monitoring subassembly, protection subassembly includes support, fixed telescopic link on the support and installs the ring that hangs on telescopic link, telescopic link is along the vertical telescopic, the ring that hangs is used for the cable to pass, protection subassembly still includes a plurality of for the protection sleeve that sets up on the cable, monitoring subassembly includes the first pressure sensor that installs in the ring and the controller that is connected with the first pressure sensor signal, the controller is used for receiving the pressure signal of first pressure sensor and according to pressure signal control telescopic link drives the ring to move downward, monitoring subassembly still includes the second pressure sensor that installs on the protection sleeve and arranges along the protection sleeve circumference many, second pressure sensor and controller signal connection. Adopt the scheme of the utility model, can solve the problem that the cable long -term drags ground and leads to abrasion.

Description

Technical Field

[0001] This utility model belongs to the field of charging piles, specifically involving a cable status monitoring mechanism and a charging pile. Background Technology

[0002] With the rapid development of the electric vehicle industry, the number of charging piles, as core infrastructure, is increasing daily. The charging cables and charging heads of these piles are key components that directly interact with users, and their operational status directly affects charging safety, user experience, and the maintenance costs for operators. Currently, charging pile monitoring technology mainly focuses on monitoring electrical parameters (such as voltage, current, and metering accuracy) and diagnosing the status of core modules, while neglecting the physical condition monitoring of the charging cables themselves, which are exposed to the external environment and frequently plugged in, unplugged, and dragged.

[0003] Combination Figure 1 As shown, to meet the charging needs of different parking spaces, charging piles are often equipped with long cables 3. Due to the heavy weight and poor flexibility of the cable 3 of the DC charging gun 2, it is not convenient to wind and store it using a reel. Currently, charging piles generally adopt a simple end-point fixing method, that is, only providing support points at both ends of the cable 3 (charging pile outlet and charging gun 2). For long cables 3, this two-point support structure cannot avoid the natural sag of the middle section under the action of gravity, causing the middle section of the cable 3 to directly contact the ground. When needed, the user holds the charging gun 2 and inserts it into the car. During this process, the part of the cable 3 on the ground will drag on the ground as the charging gun 2 moves, which is very easy to cause wear and accelerate the aging of the cable 3. Even if the cable 3 is hung on the hook designed on the charging pile body 1, it can only ensure that the cable 3 will not drag on the ground when it is hung. When the cable 3 is removed and the charging gun 2 is inserted into the vehicle, the cable 3 will still drag on the ground. Moreover, because the cable 3 is heavy, it is not convenient to remove it or to hang it back on the hook after use. Utility Model Content

[0004] In view of the shortcomings of the existing technology, this utility model provides a cable status monitoring mechanism and a charging pile to solve the problem of cable wear caused by long-term dragging on the ground.

[0005] According to the embodiments of this utility model, the following technical solution is adopted:

[0006] A cable condition monitoring mechanism includes a protection component and a monitoring component. The protection component includes a bracket, a telescopic rod fixed to the bracket, and a hanging ring mounted on the telescopic rod. The telescopic rod extends and retracts vertically, and the hanging ring is used for cable passage. The protection component also includes several protective sleeves for being fitted onto the cable. The monitoring component includes a first pressure sensor installed inside the hanging ring and a controller connected to the first pressure sensor. The controller receives the pressure signal from the first pressure sensor and controls the telescopic rod to move the hanging ring downwards based on the pressure signal. The monitoring component also includes a second pressure sensor installed on the protective sleeve and arranged in multiple locations along the circumference of the protective sleeve. The second pressure sensor is connected to the controller. The controller receives the pressure signal from the second pressure sensor and controls the telescopic rod to move the hanging ring upwards based on the pressure signal.

[0007] Compared with the prior art, the present invention has the following beneficial effects:

[0008] 1. The cable is lifted upwards using a telescopic rod and hanging ring to prevent it from dragging on the ground when not in use. A first pressure sensor detects the user's intention to pull the cable, and the controller lowers the cable via the telescopic rod. Specifically, when the cable is stationary and suspended, i.e., when the charging gun is plugged into the charging station or the vehicle, the pressure signal received by the first pressure sensor is within a constant range. However, when the charging gun is removed from the charging station and pulled closer to the vehicle, a manual pulling force is applied, increasing the pressure signal of the first pressure sensor. At this point, the cable is lowered via the telescopic rod, making it easier to manually pull the charging gun for use.

[0009] 2. By using multiple protective sleeves on the outside of the cable and multiple built-in second pressure sensors, when the cable is suspended, the second pressure sensors are not under force. However, when any of the protective sleeves on the cable touches the ground, it will trigger one of the second pressure sensors on the protective sleeve, generating a pressure signal. The controller can then immediately drive the telescopic rod to lift the cable, thereby realizing the monitoring of whether the cable is in contact with the ground.

[0010] Even when the cable touches the ground, the protective sleeve is designed to act as a sacrificial component that is in direct contact with the ground. It is the protective sleeve that suffers wear and tear, making it easy to replace at low cost. This effectively protects the valuable charging cable and significantly reduces the replacement and maintenance costs caused by wear and tear.

[0011] Furthermore, the protective sleeve includes a support ring and an outer sheath disposed outside the support ring, and the second pressure sensor is mounted on the support ring.

[0012] Furthermore, the outer sheath has two layers, and the two layers are different colors.

[0013] Furthermore, the support ring comprises two half-rings that are snapped together.

[0014] Furthermore, the outer wall of the support ring is provided with an arc-shaped groove, and the outer sheath is secured in the groove.

[0015] Furthermore, the hanging ring has a closable opening.

[0016] Furthermore, the hanging ring is rotatably connected to the telescopic rod.

[0017] According to embodiments of this utility model, the following technical solutions are also adopted:

[0018] The charging pile includes the pile body and the cable status monitoring mechanism, with the bracket detachably connected to the pile body. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of the background technology of this utility model.

[0020] Figure 2 This is a schematic diagram of the cable in the lifted state in the cable status monitoring mechanism of this utility model embodiment.

[0021] Figure 3 This is a schematic diagram of the cable in the lowered state in the cable status monitoring mechanism of this utility model embodiment.

[0022] Figure 4 for Figure 2 A schematic diagram of the middle hanging ring.

[0023] Figure 5 for Figure 2 A schematic diagram of the structure of the protective sleeve.

[0024] Figure 6 for Figure 5 Cross-sectional view of the central support ring.

[0025] In the diagram: 1. Pile body; 2. Charging gun; 3. Cable; 4. Hanging ring; 5. Telescopic rod; 6. Bracket; 7. Protective sleeve; 8. Enclosure; 9. First pressure sensor; 10. Support ring; 11. Outer sheath; 12. Second pressure sensor; 13. Slot; 14. Main body. Detailed Implementation

[0026] The present invention will be further described in detail below with reference to the accompanying drawings, and specific embodiments will be given.

[0027] In a first aspect, embodiments of this utility model disclose a cable status monitoring mechanism, specifically including the following embodiments:

[0028] like Figure 2As shown, the cable status monitoring mechanism includes a protection component and a monitoring component. The protection component includes a bracket 6, a telescopic rod 5 fixed on the bracket 6, and a hanging ring 4 installed on the telescopic rod 5. The telescopic rod 5 extends and retracts vertically, and the hanging ring 4 is used for the cable 3 to pass through. In this embodiment, the telescopic rod 5 is a conventional electric telescopic rod 5 from the prior art. In actual design, the telescopic rod 5 can also be replaced by the output shaft of a cylinder or hydraulic cylinder, as long as it can drive the hanging rod to move vertically. The cable 3 is lifted upward by the telescopic rod 5 and the hanging ring 4 to prevent the cable 3 from dragging on the ground when not in use.

[0029] Combination Figure 4 As shown, to facilitate the insertion of cable 3 into the hanging ring 4, the hanging ring 4 has a closable opening. Specifically, the opening allows cable 3 to pass through and enter the hanging ring 4. The hanging ring 4 includes a body part 14 with the opening and a closing part 8 located at the opening. In this embodiment, both ends of the closing part 8 are bolted to the body part 14, and the ends of the closing part 8 and the body part 14 are tongue and groove fitted. In actual design, the closing part 8 can also be hinged to the body part 14, i.e., referring to the design of the safety hook in the prior art, the closing part 8 is automatically closed by a torsion spring. Since cable 3 is generally not required to be assembled and disassembled repeatedly after being inserted into the hanging ring 4, this embodiment uses bolts to connect the closing part 8 to the body part 14, which is more secure and less strenuous. In actual use, the inner diameter of the hanging ring 4 is larger than the outer diameter of the cable 3 being assembled.

[0030] To avoid the hanging ring 4 restricting the cable 3 too much, the charging gun 2 may be facing vehicles in different directions during use, and it is also convenient for the charging gun 2 to face the charging pile or vehicle. In this embodiment, the hanging ring 4 is rotatably connected to the telescopic rod 5. The rotation axis of the hanging ring 4 and the telescopic axis of the telescopic rod 5 are coaxial, so that when the charging gun 2 is pulled close to the vehicle, the hanging ring 4 can rotate according to the force on the cable 3.

[0031] The monitoring components include a first pressure sensor 9 installed inside the hanging ring 4 and a controller connected to the first pressure sensor 9. The controller receives the pressure signal from the first pressure sensor 9 and controls the telescopic rod 5 to move the hanging ring 4 downwards based on the pressure signal. Specifically, the controller uses a microcontroller or other controller that implements control logic through a program, as is available in the prior art. When the cable 3 is stationary and suspended, i.e., the charging gun 2 is plugged into the charging station (see...),... Figure 2 (as shown) or plugged into the car (see...) Figure 3 When the state shown is as described, the pressure signal received by the first pressure sensor 9 is within a constant range. However, when the charging gun 2 is pulled closer to the vehicle after being removed from the charging pile, a manual pulling force is applied, which increases the pressure signal of the first pressure sensor 9. At this time, the controller controls the telescopic rod 5 to lower the cable 3, making it easier to manually pull the charging gun 2 for use.

[0032] Combination Figure 5 As shown, the protection component also includes several protective sleeves 7 for being fitted onto the cable 3. The monitoring component also includes second pressure sensors 12 installed on the protective sleeves 7 and arranged in multiple locations around the circumference of the protective sleeves 7. The second pressure sensors 12 are connected to the controller. The controller is used to receive the pressure signal from the second pressure sensors 12 and control the telescopic rod 5 to drive the hanging ring 4 to move upward according to the pressure signal. Specifically, when the cable 3 is suspended, the second pressure sensor 12 is not under force. However, when any of the protective sleeves 7 on the cable 3 touches the ground, it will trigger one of the second pressure sensors 12 on the protective sleeve 7 to generate a pressure signal. The controller can then immediately drive the telescopic rod 5 to lift the cable 3, thereby realizing the monitoring of whether the cable 3 is in contact with the ground.

[0033] In the actual design process, the protective sleeve 7 includes a support ring 10 and an outer sheath 11 set outside the support ring 10. The outer sheath 11 is made of rubber or other wear-resistant materials. The second pressure sensor 12 is installed on the support ring 10. The outer sheath 11 has a certain protective effect on the second pressure sensor 12. Furthermore, even if the cable 3 touches the ground, it is the outer sheath 11 that is in direct contact with the ground. The wear will be caused by the protective sleeve 7, which effectively protects the cable 3.

[0034] In normal use, when a user holds the charging gun 2 and approaches the vehicle, as the telescopic rod 5 gradually lowers the cable 3, only the pressure signal of the first pressure sensor 9 changes; the cable 3 does not touch the ground, meaning the second pressure sensor 12 will not generate a pressure signal. However, if the user pulls a long cable 3, resulting in a large portion of the cable 3 being lowered by the telescopic rod 5 and beginning to drag on the ground, and the user is still pulling the cable 3, meaning the pressure signal of the first pressure sensor 9 continues to change and simultaneously triggers the signal of the second pressure sensor 12, the controller's processing logic prioritizes control based on the pressure signal of the first pressure sensor 9. When the pressure signal of the first pressure sensor 9 stops changing, meaning the user stops pulling the cable 3 and connects the charging gun 2 to the vehicle, if a portion of the cable 3 is still dragging on the ground, the controller will then control based on the pressure signal of the second pressure sensor 12.

[0035] In another embodiment of this utility model, combined with Figure 6 As shown, the outer wall of the support ring 10 is provided with an arc-shaped groove 13, and the outer sleeve 11 is inserted into the groove 13. The outer sleeve 11 and the support ring 10 are not connected. The outer sleeve 11 is limited by the insertion of the groove 13 so that the outer sleeve 11 can be replaced when it is worn.

[0036] To facilitate observation of whether the outer sheath 11 is worn, the outer sheath 11 has two layers with different colors. For example, the inner support of the outer sheath 11 is red or yellow rubber, while the outer layer of the outer sheath 11 is black rubber. When the black rubber is worn down to the point that the bright inner support color is exposed, the outer sheath 11 needs to be replaced.

[0037] The support ring 10 includes two half-rings that are snapped together. After the two half-rings are snapped together to form the support ring 10, a rubber strip is wrapped around the support ring 10 and snapped into the slot 13, and its two ends are glued together to form the outer sheath 11. The slot 13 limits the outer sheath 11, and the outer sheath 11 also limits the two half-rings, forming a bidirectional limit and making it easy to replace the outer sheath 11.

[0038] Secondly, embodiments of this utility model disclose a charging pile, specifically including the following embodiments:

[0039] like Figure 2 As shown, the charging pile includes a pile body 1 and a cable status monitoring mechanism as described in any of the above embodiments. The bracket 6 is detachably connected to the pile body 1. Specifically, the bracket 6 is bolted to the top of the outer wall of the existing charging pile body 1 to realize the assembly of the cable status monitoring mechanism. The cable status monitoring mechanism can be assembled on any existing charging pile to modify existing charging piles where the cable 3 is dragging on the ground, which is convenient for modification.

[0040] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0041] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this utility model without departing from the spirit and scope of the technical solutions of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A cable condition monitoring mechanism, characterized in that, The device includes a protection component and a monitoring component. The protection component includes a bracket, a telescopic rod fixed to the bracket, and a hanging ring mounted on the telescopic rod. The telescopic rod extends and retracts vertically, and the hanging ring is used to allow cables to pass through. The protection component also includes several protective sleeves for being fitted onto the cables. The monitoring component includes a first pressure sensor installed inside the hanging ring and a controller connected to the first pressure sensor. The controller receives the pressure signal from the first pressure sensor and controls the telescopic rod to move the hanging ring downwards based on the pressure signal. The monitoring component also includes a second pressure sensor installed on the protective sleeve and arranged in multiple locations along the circumference of the protective sleeve. The second pressure sensor is connected to the controller. The controller receives the pressure signal from the second pressure sensor and controls the telescopic rod to move the hanging ring upwards based on the pressure signal.

2. The cable condition monitoring mechanism according to claim 1, characterized in that, The protective sleeve includes a support ring and an outer sheath disposed outside the support ring, and the second pressure sensor is mounted on the support ring.

3. The cable condition monitoring mechanism according to claim 2, characterized in that, The outer sheath has two layers, and the two layers are different colors.

4. The cable condition monitoring mechanism according to claim 2, characterized in that, The support ring comprises two half-rings that are snapped together.

5. The cable condition monitoring mechanism according to claim 2, characterized in that, The outer wall of the support ring is provided with an arc-shaped groove, and the outer sheath is secured in the groove.

6. The cable condition monitoring mechanism according to claim 1, characterized in that, The hanging ring has a closable opening.

7. The cable condition monitoring mechanism according to claim 1, characterized in that, The hanging ring is rotatably connected to the telescopic rod.

8. A charging pile, characterized in that, It includes a pile body and a cable status monitoring mechanism as described in any one of claims 1-7, wherein the bracket is detachably connected to the pile body.

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