Charging gun reset detection device
By inserting the micro switch into the cylinder and using connecting rods and other structures to improve sealing, the problem that the micro switch in the charging gun reset detection device is easily affected by dust and moisture, achieving higher reliability and long-term use.
Patent Information
- Application Number
- CN202521283638.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-06-23
- Publication Date
- 2025-07-25
- Estimated Expiration
- 2035-06-23
AI Technical Summary
The micro switches of existing charging gun reset detection devices are susceptible to dust and moisture, resulting in oxidation or corrosion, affecting reliability and service life.
The micro switch is built into the cylinder and the trigger signal is transmitted through the connecting rod to avoid direct exposure to the external environment. At the same time, the sealing and detection accuracy are improved using structures such as limiting parts, shrapnel and diaphragm.
Effectively prevent dust and moisture from entering, improve the reliability and service life of the micro switch, and ensure the accuracy and reliability of the charging gun insertion detection.
Smart Images
Figure CN223156377U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of charging piles, and particularly relates to a charging gun reset detection device. Background Art
[0002] A charging pile is a professional device for supplying electric energy to an electric vehicle, and its core function is to safely and efficiently transmit electric energy to the vehicle battery. Traditional charging piles are fixed on the ground or wall, with their input ends electrically connected to the power grid and their output ends connected to a charging gun for connecting to the charging port of the electric vehicle.
[0003] Conventionally, a gun holder is provided on the charging pile, and a slot is provided on the gun holder. When not in use, the user needs to place the charging gun back on the charging pile so that the gun head of the charging gun is inserted into the slot. To facilitate detecting whether the charging gun is placed in place, for example, a charging gun reset detection structure of an electric vehicle charging pile disclosed in Patent Application No. CN2023230650164 includes a charging gun fixing seat, which is composed of a mounting plate, a charging gun head placement box, and an induction device mounting block. The mounting plate is fixedly sleeved outside the charging gun head placement box, the bottom of the charging gun head placement box is fixedly connected to the induction device mounting block, and an induction device for detecting whether the charging gun is reset is installed in the induction device mounting block. This technical solution determines whether the charging gun is placed in place through the induction device, which is more accurate than manual judgment.
[0004] In the above technical solution, an installation groove is formed at the top of the induction device mounting block, a through groove communicating with the installation groove is formed at the bottom of the charging gun head placement box, and the induction device is a microswitch installed at the installation groove. When the charging gun is inserted into the slot, the microswitch contacts the charging gun and triggers a signal to determine that the charging gun is placed in place. However, when the charging gun is pulled out for charging, the microswitch will be exposed to the air, and dust is likely to enter the installation groove and adhere to the microswitch, which may cause oxidation or poor contact of the microswitch contacts. Especially in a humid environment, it will accelerate the corrosion of the metal parts of the microswitch and is not suitable for long-term use, and its reliability needs to be improved. Content of the Utility Model
[0005] The technical problem to be solved by the utility model is to provide a charging gun reset detection device with good reliability and suitable for long-term use.
[0006] The technical solution adopted by the present utility model to solve the above technical problems is as follows: A charging gun reset detection device includes a gun seat provided on a charging pile. A slot is provided on the front surface of the gun seat, and a perforation and a cylinder body are provided on the back surface of the gun seat. The inside of the cylinder body is communicated with the bottom of the slot through the perforation. A microswitch and a connecting rod are provided inside the cylinder body. One end of the connecting rod abuts against a pressing rod on the microswitch, and the other end of the connecting rod passes through the perforation and extends into the slot.
[0007] Preferably, a sleeve surrounding the perforation is provided on the back surface of the gun seat. The inner diameter of the sleeve is consistent with the inner diameter of the perforation, and the sleeve is sleeved on the outside of the connecting rod.
[0008] Preferably, a limiting member is provided on the side surface of the connecting rod, and the limiting member is used to abut against the side of the sleeve away from the gun seat.
[0009] Preferably, the limiting member includes a limiting ring, and the inner ring of the limiting ring is fixedly connected to the outer side surface of the connecting rod.
[0010] Preferably, the limiting member further includes a rubber ring. The inner ring of the rubber ring is recessed outward to form an annular groove adapted to the limiting ring, and the rubber ring is sleeved on the limiting ring.
[0011] Preferably, a spring piece is fixedly provided on the inner wall of the cylinder body, and the spring piece abuts against the side of the pressing rod away from the connecting rod.
[0012] Preferably, a connecting piece is integrally provided at the connecting end of the spring piece, and at least two connecting holes are provided on the connecting piece.
[0013] Preferably, an installation groove and a diaphragm are provided at the bottom of the slot. One end of the perforation is communicated with the bottom of the installation groove. The diaphragm covers the other end of the connecting rod, and the edge of the diaphragm is bonded to the bottom of the installation groove.
[0014] Preferably, an end cover is provided at the end of the cylinder body away from the gun seat. A first wire hole and a first through hole are provided on the end cover. A screw hole is provided on the cylinder body. The wire connected to the microswitch extends out through the first wire hole, and a bolt passes through the first through hole and is threadedly connected to the screw hole.
[0015] Preferably, a rubber pad is provided between the end cover and the cylinder body. A second wire hole and a second through hole are provided on the rubber pad. The second wire hole corresponds to the first wire hole and is used for passing the wire, and the second through hole corresponds to the first through hole and is used for passing the bolt.
[0016] Compared with the prior art, the advantages of the present utility model are as follows:
[0017] 1. By integrating the microswitch inside the cylinder body and using a connecting rod to transmit the trigger signal, the microswitch is prevented from being directly exposed to the external environment, greatly reducing the entry of dust, moisture, etc., which may cause oxidation or corrosion of the contacts of the microswitch. This results in better reliability and helps to extend the service life of the microswitch.
[0018] 2. The other end of the connecting rod passes through the perforation and extends into the slot, and it is located at the bottom of the slot. Only when the gun head of the charging gun is fully inserted into the slot can the connecting rod be pushed backward to trigger the microswitch, which helps to ensure the accuracy of detection. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] Figure 1 is a schematic structural view of the present utility model;
[0020] Figure 2 is a schematic cross-sectional structural view of the present utility model;
[0021] Figure 3 is Figure 2 an enlarged schematic view of part A in
[0022] Figure 4 is an exploded structural view of the connecting rod and the limiting member of the present utility model;
[0023] Figure 5 is a schematic structural view of the elastic piece and the connecting piece of the present utility model;
[0024] Figure 6 is an exploded structural view of the present utility model.
[0025] In the figure: 1. Gun seat; 11. Slot; 12. Perforation; 13. Sleeve; 14. Installation groove; 15. Locking buckle; 2. Cylinder body; 21. Screw hole; 3. Microswitch; 31. Pressure rod; 32. Electric wire; 4. Connecting rod; 5. Limiting member; 51. Limiting ring; 52. Rubber ring; 521. Annular groove; 61. Elastic piece; 62. Connecting piece; 621. Connecting hole; 7. Diaphragm; 8. End cover; 81. First wire hole; 82. First through hole; 9. Rubber pad; 91. Second wire hole; 92. Second through hole. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0026] The following further describes the present utility model in detail with reference to the embodiments of the drawings.
[0027] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be construed as a limitation to the present utility model.
[0028] Embodiment 1: As Figures 1 to 3 shown, a charging gun reset detection device includes a gun seat 1 provided on a charging pile. A slot 11 is provided on the front surface of the gun seat 1, and a through hole 12 and a cylinder 2 are provided on the back surface of the gun seat 1. The inside of the cylinder 2 is communicated with the bottom of the slot 11 through the through hole 12. A microswitch 3 and a connecting rod 4 are provided inside the cylinder 2. One end of the connecting rod 4 abuts against a pressing rod 31 on the microswitch 3, and the other end of the connecting rod 4 passes through the through hole 12 and extends into the slot 11. Among them, the cylinder 2 is preferably integrally formed with the gun seat 1. The microswitch 3 adopts a common Omron swing rod type microswitch on the market, such as the D2F-01FL type; the connecting rod 4 is preferably made of plastic to make it lighter in weight so as to be pushed forward.
[0029] Since the back surface of the conventional gun seat 1 is relatively thin and the corresponding length of the through hole 12 is short, in order to ensure that the connecting rod 4 can move stably along its axis, further, a sleeve 13 surrounding the through hole 12 is provided on the back surface of the gun seat 1. The inner diameter of the sleeve 13 is consistent with the inner diameter of the through hole 12, and the sleeve 13 is sleeved outside the connecting rod 4.
[0030] When the gun head of the charging gun is fully inserted into the slot 11, the gun head pushes the connecting rod 4 to move backward and triggers the microswitch 3; when the charging gun is pulled out, the action force of the microswitch 3 is used to restore to the state when the signal is not triggered, and at the same time, the connecting rod 4 is driven to move forward to restore to the state when it extends into the slot 11.
[0031] It should be noted that a locking buckle 15 is provided on the front surface of the gun seat 1. When the gun head of the charging gun is fully inserted into the slot 11, the hook on the charging gun will be locked and engaged with the locking buckle 15, and the hook cannot be separated from the locking buckle 15 only by the action force of the microswitch 3.
[0032] Embodiment 2: As Figure 3 and Figure 4 shown, the rest is the same as in Embodiment 1, and the difference is that a limiting member 5 is provided on the side surface of the connecting rod 4. The limiting member 5 is used to abut against the side of the sleeve 13 away from the gun seat 1 to prevent the connecting rod 4 from extending too far into the slot 11.
[0033] In this embodiment, the limiting member 5 includes a limiting ring 51. The inner ring of the limiting ring 51 is fixedly connected to the outer side surface of the connecting rod 4. Conventionally, the limiting ring 51 is made of plastic material and is integrally formed with the connecting rod 4.
[0034] Embodiment 3: As Figure 3 and Figure 4 shown, the rest is the same as that in Embodiment 2, and the difference is that the limiting member 5 further includes a rubber ring 52. The inner ring of the rubber ring 52 is recessed outward to form an annular groove 521 adapted to the limiting ring 51, and the rubber ring 52 is sleeved on the limiting ring 51.
[0035] In this solution, the rubber ring 52 not only has a buffering and shock-absorbing effect to prevent the limiting ring 51 from colliding rigidly with the sleeve 13, but also can play a sealing role to prevent dust, moisture, etc. from entering the cylinder body 2 through the gap between the connecting rod 4 and the sleeve 13.
[0036] Embodiment 4: As Figure 3 and Figure 5 shown, the rest is the same as that in Embodiment 1, and the difference is that an elastic sheet 61 is fixedly arranged on the inner wall of the cylinder body 2, and the elastic sheet 61 abuts against the side of the pressing rod 31 away from the connecting rod 4. The elastic sheet 61 plays an auxiliary role. Select an elastic sheet 61 with an appropriate resilience according to actual needs, and help the pressing rod 31 to reset quickly through the elastic sheet 61 to ensure the response speed. Of course, when the hook on the charging gun is locked and cooperated with the locking buckle, relying on the acting force of the microswitch 3 and the resilience of the elastic sheet 61, the hook cannot be separated from the locking buckle.
[0037] In this embodiment, a connecting piece 62 is integrally arranged at the connecting end of the elastic sheet 61, and at least two connecting holes 621 are formed in the connecting piece 62, so that the staff can install the elastic sheet 61 on the inner wall of the cylinder body 2 through the connecting piece 62.
[0038] Embodiment 5: As Figure 3 shown, the rest is the same as that in Embodiment 1, and the difference is that an installation groove 14 and a diaphragm 7 are arranged at the bottom of the slot 11. One end of the through hole 12 is communicated with the bottom of the installation groove 14, the diaphragm 7 covers the other end of the connecting rod 4, and the edge of the diaphragm 7 is adhered to the bottom of the installation groove 14. Among them, the diaphragm 7 is made of a rubber-like material, such as silicone rubber, which has good flexibility and waterproofness and is not easy to age. The setting of the diaphragm 7 can prevent dust, moisture, etc. from entering between the connecting rod 4 and the sleeve 13, which helps to further improve the isolation effect.
[0039] When the gun head of the charging gun is fully inserted into the slot 11, the gun head contacts the diaphragm 7 and makes the diaphragm 7 completely enter the installation groove 14, and at the same time the connecting rod 4 moves backward.
[0040] Embodiment 6: As Figure 1 、 Figure 2and Figure 6 As shown, the rest of the parts are the same as those in the first embodiment, except that an end cover 8 is provided at one end of the barrel 2 away from the gun holder 1, a first wire hole 81 and a first through hole 82 are provided on the end cover 8, a screw hole 21 is provided on the barrel 2, a wire 32 connected to the micro switch 3 extends from the first wire hole 81, and a bolt passes through the first through hole 82 and is threadedly connected with the screw hole 21.
[0041] In this embodiment, a rubber pad 9 is provided between the end cover 8 and the cylinder 2, and a second wire hole 91 and a second through hole 92 are provided on the rubber pad 9. The second wire hole 91 corresponds to the first wire hole 81 and is used to pass the wire 32, and the second through hole 92 corresponds to the first through hole 82 and is used to pass the bolt. The rubber pad 9 has a sealing effect to prevent dust, moisture, etc. from entering the cylinder 2 from the back of the cylinder 2, so as to ensure a better isolation effect.
[0042] The above is an exemplary description of the utility model in conjunction with the accompanying drawings. It is obvious that the implementation of the utility model is not limited to the above-mentioned method. As long as various improvements are made using the method concept and technical solution of the utility model, or the concept and technical solution of the utility model are directly applied to other occasions without improvement, they are all within the protection scope of the utility model.
Claims
1. A charging gun reset detection device, including a gun seat (1) arranged on a charging pile, wherein a slot (11) is arranged on the front surface of the gun seat (1), and it is characterized in that: A perforation (12) and a cylinder body (2) are provided on the back surface of the gun base (1). The interior of the cylinder body (2) communicates with the bottom of the slot (11) through the perforation (12). A microswitch (3) and a connecting rod (4) are arranged in the cylinder body (2). One end of the connecting rod (4) abuts against a pressure rod (31) on the microswitch (3), and the other end of the connecting rod (4) passes through the perforation (12) and extends into the slot (11).
2. The reset detection device for a charging gun according to claim 1, wherein: A sleeve (13) surrounding the perforation (12) is provided on the back surface of the gun base (1). The inner diameter of the sleeve (13) is consistent with the inner diameter of the perforation (12). The sleeve (13) is sleeved on the outside of the connecting rod (4).
3. The reset detection device for a charging gun according to claim 2, characterized in that: A limiting member (5) is provided on the side surface of the connecting rod (4). The limiting member (5) is used to abut against the side of the sleeve (13) away from the gun base (1).
4. The reset detection device for a charging gun according to claim 3, wherein: The limiting member (5) includes a limiting ring (51). The inner ring of the limiting ring (51) is fixedly connected to the outer side surface of the connecting rod (4).
5. The reset detection device for a charging gun according to claim 4, wherein: The limiting member (5) further includes a rubber ring (52). An annular groove (521) adapted to the limiting ring (51) is formed by the inward depression of the inner ring of the rubber ring (52). The rubber ring (52) is sleeved on the limiting ring (51).
6. The reset detection device for a charging gun according to claim 1, wherein: A spring piece (61) is fixedly arranged on the inner wall of the cylinder body (2). The spring piece (61) abuts against the side of the pressure rod (31) away from the connecting rod (4).
7. The reset detection device for a charging gun according to claim 6, characterized in that: A connecting piece (62) is integrally arranged at the connecting end of the spring piece (61). At least two connecting holes (621) are formed in the connecting piece (62).
8. The reset detection device for a charging gun according to claim 1, wherein: An installation groove (14) and a diaphragm (7) are provided at the bottom of the slot (11). One end of the perforation (12) communicates with the bottom of the installation groove (14). The diaphragm (7) covers the other end of the connecting rod (4). The edge of the diaphragm (7) is bonded to the bottom of the installation groove (14).
9. The reset detection device for a charging gun according to claim 1, wherein: An end cover (8) is provided at one end of the cylinder body (2) away from the gun base (1). A first wire hole (81) and a first through hole (82) are provided on the end cover (8). A screw hole (21) is provided on the cylinder body (2). A wire (32) connected to the microswitch (3) extends out from the first wire hole (81). A bolt passes through the first through hole (82) and is threadedly connected to the screw hole (21).
10. A charging gun reset detection device according to claim 9, characterized in that: A rubber pad (9) is provided between the end cover (8) and the cylinder body (2). A second wire hole (91) and a second through hole (92) are provided on the rubber pad (9). The second wire hole (91) corresponds to the first wire hole (81) and is used for passing the wire (32). The second through hole (92) corresponds to the first through hole (82) and is used for passing the bolt.