Microswitch pressing plate

Abstract

The utility model discloses a microswitch pressing plate, and relates to the technical field of charging gun microswitches. Comprising a mounting cavity formed in a charging gun, a mounting shell is arranged in the mounting cavity, a microswitch is arranged on the mounting shell, a pressing plate covering the microswitch is mounted at the top of the mounting shell, the top end of the microswitch penetrates through the pressing plate, and the mounting shell is rotatably connected with a clamping hook which is located above the pressing plate and can press the microswitch in a natural state. The installation shell is provided with a microswitch placing position, and the microswitch is installed on the microswitch placing position. According to the microswitch pressing plate and the clamping hook, the microswitch is pressed in a normal state, the microswitch can be released by lifting the end part of the clamping hook, and the clamping hook is matched with the pressing plate, so that the overvoltage problem of the microswitch can be avoided, and the lifting power-off height is ensured.

Description

Technical Field

[0001] This utility model relates to the field of micro switch technology for charging guns, specifically a micro switch pressure plate. Background Technology

[0002] The electric vehicle charging gun is mainly used to charge electric vehicles. The charging gun serves as the interface between the charging equipment and the electric vehicle's battery. A micro switch is a contact mechanism with a small contact gap and a quick-acting mechanism. It is a type of switch that uses a specified stroke and a specified force to perform switching actions. It is covered by a shell and has a drive rod on the outside. Because the contact gap of the switch is relatively small, it is called a micro switch, also known as a sensitive switch. Micro switches are used in charging guns.

[0003] As new energy charging guns continue to mature and evolve, electromagnetic locks, micro switches, and feedback switches are being integrated into the charging gun components for easier installation. However, this has also brought some problems. During the use of the charging gun's latch pedal, the micro switch connected in series between CC1 and PE may experience overvoltage due to the pressing of the rear latch pedal. Utility Model Content

[0004] This invention provides a micro-switch pressure plate to solve the problems in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a micro switch pressure plate, comprising a mounting cavity disposed on a charging gun, a mounting shell disposed within the mounting cavity, a micro switch disposed on the mounting shell, a pressure plate covering the micro switch being mounted on the top of the mounting shell, the top end of the micro switch passing through the pressure plate, and a hook rotatably connected to the mounting shell, located above the pressure plate and capable of pressing the micro switch in a natural state.

[0006] Furthermore, the mounting housing has a micro switch placement position, and the micro switch is installed in the micro switch placement position.

[0007] Furthermore, the pressure plate is provided with a switch clearance hole, and the top of the micro switch has a contact that passes through the switch clearance hole.

[0008] Furthermore, the micro switch is connected with a wire.

[0009] Furthermore, the mounting shell has a waterproof ring mounting groove, a waterproof plug is fitted in the waterproof ring mounting groove, the pressure plate has a waterproof plug recess into which the waterproof plug extends, and the waterproof plug has a wire hole through which one end of the wire passes.

[0010] Furthermore, the mounting housing is provided with a clearance opening, and the bottom of the pressure plate is provided with a cable clearance groove that cooperates with the clearance opening. One end of the wire passes through the waterproof plug and passes through the clearance opening and the cable clearance groove.

[0011] Furthermore, a cable clamping groove is provided on one side of the inner wall of the clearance position, and a wire clearance groove communicating with the cable clearance groove is provided on the pressure plate.

[0012] Furthermore, the middle part of the hook has a hook shaft hole, and a pin connected to the mounting shell is assembled in the hook shaft hole.

[0013] Furthermore, one end of the hook is integrally connected to a pressing pedal, and a return spring is installed at the bottom end of the pressing pedal.

[0014] Furthermore, the mounting housing is provided with screw holes, and the pressure plate is provided with screw through holes that correspond to the screw holes. The corresponding screw holes and screw through holes are connected by screws.

[0015] Compared with the prior art, the present invention provides a micro switch pressure plate, which has the following advantages:

[0016] 1. The micro switch pressure plate and the hook can release the micro switch by lifting the end of the hook when the micro switch is pressed under normal conditions. The hook and the pressure plate can prevent overvoltage of the micro switch and ensure the power-off height.

[0017] 2. The micro switch pressure plate, through the design of structures such as clearance slots, wire slots, cable clearance slots, and wire holes, can ensure that the wires connected to the micro switch can run smoothly. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the structure of the pressure plate of this utility model mounted on the mounting shell;

[0020] Figure 3 This is a schematic diagram of the structure under the pressure plate of this utility model;

[0021] Figure 4 This is a schematic diagram of the structure of the touch switch placement position of this utility model;

[0022] Figure 5 This is a schematic diagram of the hook structure of this utility model;

[0023] Figure 6 This is a schematic diagram of the structure of the pressure plate of this utility model;

[0024] Figure 7This is a schematic diagram of the contact hole structure of this utility model.

[0025] In the diagram: 1. Mounting cavity; 2. Mounting shell; 3. Micro switch; 4. Hook; 5. Pin; 6. Pressure plate; 7. Waterproof plug; 8. Screw; 101. Mounting cavity boundary; 201. Micro switch placement position; 202. Screw hole; 203. Clearance space; 204. Waterproof ring mounting groove; 205. Wire slot; 301. Contact; 302. Wire; 401. Hook shaft hole; 402. Press pedal; 601. Switch clearance hole; 602. Screw through hole; 603. Cable clearance groove; 604. Waterproof plug clearance groove; 605. Wire clearance groove; 701. Wire hole; 702. Waterproof ring. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] Please see Figure 1-7 This utility model discloses a micro switch pressure plate, including a mounting cavity 1 disposed on a charging gun, a mounting shell 2 disposed inside the mounting cavity 1, a micro switch 3 disposed on the mounting shell 2, a pressure plate 6 covering the micro switch 3 mounted on the top of the mounting shell 2, the top end of the micro switch 3 passing through the pressure plate 6, and a hook 4 located above the pressure plate 6 that can press the micro switch 3 in a natural state is rotatably connected to the mounting shell 2.

[0028] The mounting housing 2 has a micro switch placement position 201, and the micro switch 3 is installed on the micro switch placement position 201. The pressure plate 6 has a switch avoidance hole 601. The micro switch 3 is located below the switch avoidance hole 601, but the top of the micro switch 3 has a contact 301 that can pass through the switch avoidance hole 601.

[0029] The micro switch 3 is a normally open micro switch. Under normal conditions, the micro switch 3 is triggered by pressure to form a closed state and is connected in series between the signal line CC1 and PE of the charging gun to form a circuit.

[0030] Contact 301 is a telescopic structure. This structure is a mature microswitch structure, and the microswitch 3 can achieve waterproof effect in both static and dynamic conditions. Therefore, this product does not require special waterproof protection.

[0031] The mounting cavity 1 has a mounting cavity boundary 101 on the side close to the charging gun head, and one end of the mounting shell 2 is attached to the mounting cavity boundary 101.

[0032] The middle part of the hook 4 has a downward protruding part, on which a hook shaft hole 401 is opened. The hook 4 is connected to the mounting shell 2 by a pin 5 passing through the hook shaft hole 401, and a rotating structure is formed between the hook 4 and the mounting shell 2.

[0033] The end of the hook 4 away from the micro switch 3 is integrally connected to the pressing pedal 402, and the bottom end of the pressing pedal 402 is equipped with a reset spring that is connected to the inner wall of the bottom of the mounting cavity 1.

[0034] When the return spring is in its natural state, the bottom of the hook 4, which is away from the pressing pedal 402, can press the contact 301 of the micro switch 3. When the pressing pedal 402 is subjected to a downward force and the return spring is compressed, the hook 4 rotates through the pin 5 as a fulcrum. The end of the hook 4 away from the pressing pedal 402 is raised, so that the contact 301 of the micro switch 3 is released, thereby ensuring that the connection signal line CC1 is disconnected and that the product is not energized during the charging gun insertion process. When the gun is inserted into the charging pile, the force applied to the pressing pedal 402 is released, and the return spring installed below the pressing pedal 402 is reset, so that the raised end of the hook 4 is reset and presses the contact 301 of the micro switch 3 again.

[0035] The top of the contact 301 of the micro switch 3 extends above the switch relief hole 601. When the hook 4 presses the contact 301 of the micro switch 3 in the normal state, the upper surface of the pressure plate 6 forms a natural stop surface, which can ensure that the hook 4 does not press the micro switch 3.

[0036] Specifically, the micro switch 3 is connected to a wire 302.

[0037] The mounting shell 2 has a waterproof ring mounting groove 204, and a waterproof plug 7 is installed in the waterproof ring mounting groove 204. The pressure plate 6 has a waterproof plug relief groove 604 into which the waterproof plug 7 extends. The waterproof plug 7 has a wire hole 701 through which one end of the wire 302 passes.

[0038] The mounting housing 2 is also provided with a clearance 203, and the bottom of the pressure plate 6 is provided with a cable clearance groove 603 that cooperates with the clearance 203. One end of the wire 302 passes through the waterproof plug 7 and passes through the clearance 203 and the cable clearance groove 603.

[0039] The inner wall of one side of the clearance space 203 is provided with a wire clamping groove 205, and the pressure plate 6 is provided with a wire clearance groove 605 that communicates with the cable clearance groove 603.

[0040] In this embodiment, the charging gun is externally mounted with an electromagnetic lock and a feedback switch that cooperate with the micro switch 3. The installation of the electromagnetic lock and the feedback switch is a mature structure. After installation, the wiring needs to meet the electrical performance requirements. Therefore, the wires 302 introduced into the mounting cavity 1 are needed to connect the electromagnetic lock, the feedback switch and the micro switch 3 to form a complete circuit connection.

[0041] The cable clearance groove 603 at the bottom of the pressure plate 6 cooperates with the clearance 203 to allow the wire 302 to pass through. The wire 302 passing through the clearance 203 can then pass through the wire clamping groove 205 and the wire clearance groove 605 on the pressure plate 6 and extend upward. After that, the wire 302 goes into the waterproof plug 7 that has been pre-installed in the waterproof ring mounting groove 204 and connects to the micro switch 3 through the wire hole 701 on the waterproof plug 7.

[0042] The waterproof plug recess 604 ensures that the waterproof plug 7 is installed properly, the wire 302 is not affected by interference, and the wire 302 can be arranged smoothly. A waterproof ring 702 can be set on the outer wall of the waterproof plug 7.

[0043] The conductor 302 contains a total of 6 wires for triggering microswitches 3, feedback microswitches, and electromagnetic lock power supply.

[0044] Specifically, the mounting shell 2 is provided with screw holes 202, and the pressure plate 6 is provided with screw through holes 602 that correspond to and cooperate with the screw holes 202. The corresponding screw holes 202 and screw through holes 602 are connected by screws 8.

[0045] In this embodiment, the pressure plate 6 is disposed on the mounting shell 2, and the screw through hole 602 on the pressure plate 6 corresponds to the screw hole 202 on the mounting shell 2. By connecting the screw through hole 602 and the screw hole 202 with screws 8, the pressure plate 6 can be fixed on the mounting shell 2.

[0046] During use, when the charging gun is charging, pressing the pressing pedal 402 of the hook 4 causes the pin 5 to rotate, lifting the front end of the hook 4. This releases the micro switch 3, ensuring that the connection signal line CC1 is disconnected and that the product is not energized during insertion. When the charging gun is inserted into the charging station and the force applied to the pressing pedal 402 is released, the reset spring installed below the pressing pedal 402 resets the hook 4, allowing it to re-engage the micro switch 3 and close, thus creating a circuit.

[0047] In summary, the micro switch pressure plate and the hook 4 press the micro switch 3 under normal conditions. By raising the end of the hook 4, the micro switch 3 can be released. Furthermore, the hook 4, in conjunction with the pressure plate 6, can avoid overvoltage of the micro switch 3 and ensure the raised power-off height. Through the design of structures such as the clearance space 203, the wire slot 205, the cable clearance slot 603, and the wire hole 701, it can be ensured that the wire 302 connected to the micro switch 3 can run smoothly.

[0048] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A microswitch platen comprising a mounting cavity (1) provided on a charging gun, characterized in that: The installation cavity (1) is internally provided with an installation shell (2), the installation shell (2) is provided with a micro switch (3), the top of the installation shell (2) is provided with a pressing plate (6) covering the micro switch (3), the top end of the micro switch (3) penetrates the pressing plate (6), and the installation shell (2) is rotatably connected with a clamping hook (4) located above the pressing plate (6) and capable of pressing the micro switch (3) in a natural state.

2. A microswitch platen according to claim 1, wherein: The installation shell (2) is provided with a micro switch placing position (201), and the micro switch (3) is installed on the micro switch placing position (201).

3. The microswitch platen of claim 1 wherein: The pressing plate (6) is provided with a switch avoiding hole (601), and the top of the micro switch (3) is provided with a contact (301) penetrating the switch avoiding hole (601).

4. The microswitch platen of claim 1 wherein: The micro switch (3) is connected with a wire (302).

5. A microswitch platen according to claim 4, wherein: The installation shell (2) is provided with a waterproof ring mounting groove (204), the waterproof ring mounting groove (204) is internally assembled with a waterproof plug (7), the pressing plate (6) is provided with a waterproof plug avoiding slot (604) into which the waterproof plug (7) extends, and the waterproof plug (7) is provided with a wire penetrating hole (701) through which one end of the wire (302) penetrates.

6. A microswitch platen according to claim 4, wherein: The installation shell (2) is further provided with an avoiding space (203), the bottom of the pressing plate (6) is provided with a cable avoiding slot (603) matched with the avoiding space (203), and one end of the wire (302) penetrating the waterproof plug (7) penetrates the avoiding space (203) and the cable avoiding slot (603).

7. A microswitch platen according to claim 6, wherein: One side inner wall of the avoiding space (203) is provided with a wire clamping groove (205), and the pressing plate (6) is provided with a wire avoiding slot (605) in communication with the cable avoiding slot (603).

8. The microswitch platen of claim 1 wherein: The middle part of the clamping hook (4) is provided with a clamping hook shaft hole (401), and the clamping hook shaft hole (401) is internally assembled with a pin shaft (5) connected with the installation shell (2).

9. A microswitch platen according to claim 8, wherein: One end of the clamping hook (4) is integrally connected with a pressing pedal (402), and the bottom end of the pressing pedal (402) is provided with a reset spring.

10. The microswitch platen of claim 1 wherein: The installation shell (2) is provided with a screw hole (202), the pressing plate (6) is provided with a screw through hole (602) corresponding to and matched with the screw hole (202), and the screw hole (202) and the screw through hole (602) are connected through a screw (8).

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