An integrated charging gun

Abstract

The present invention discloses an integrated charging gun, belonging to the field of new energy vehicles. It comprises a charging cable, a connecting plug disposed at one end of the charging cable, and a charging plug disposed at the other end of the charging cable. The charging plug comprises a housing disposed on the charging cable, a control circuit board disposed within the housing and electrically connected to the charging cable, and a pin disposed at the front end of the control circuit board. This invention saves mold and component costs, reduces seal failure points, eliminates the need for a separate sealing design for the control box, and eliminates the cable from the vehicle plug to the control box, facilitating cable material management and reducing cable costs.

Description

Technical Field

[0001] The present invention relates to the technical field of new energy vehicles, and in particular to an integrated charging gun. Background Art

[0002] Existing charging guns are all equipped with cable control devices, which are generally large and bulky. They are often dragged on the ground during use and are easily crushed. In addition, the cable control box needs to be molded separately and protected by a shell, so the mold cost and parts are high. In addition, due to the functional requirements of the cable control protection device, a circuit board needs to be assembled inside the cable control protection device, and the circuit board needs to meet a certain level of waterproof requirements. The existing cable control protection device needs to be made into a separate sealing and waterproof structure, and the sealing performance of the cable control protection device is generally poor. At the same time, due to the existence of the cable control box, the existing charging gun has a large number of parts and components, many assembly processes, and low assembly efficiency. In addition, the existing vehicle plug to the cable control box generally adopts 3*2.5mm 2 +1*0.75mm 2 Cable, and the cable from the control box to the connecting plug generally uses 3*2.5mm 2 For cables with connecting plugs, the cable specifications on both sides of the control box are different, which is not conducive to material control. Summary of the Invention

[0003] In view of the shortcomings of the existing technology, the present invention proposes an integrated charging gun. The specific technical solution is as follows:

[0004] An integrated charging gun includes: a charging cable, a connecting plug arranged at one end of the charging cable, and a charging plug arranged at the other end of the charging cable. The charging plug includes a shell arranged on the charging cable, a control circuit board arranged in the shell and electrically connected to the charging cable, and a pin arranged at the front end of the control circuit board.

[0005] Preferably, a plurality of circuit board jacks corresponding to the pins are provided on the inner side of the control circuit board, and the circuit board jacks are made of conductive material.

[0006] In the present invention, a user realizes electrical connection and detachable connection between the plug and the control circuit board by plugging the plug pin into the control circuit board socket.

[0007] Preferably, an elastic contact structure is provided on the circuit board socket or pin.

[0008] The present invention provides an elastic contact structure on the circuit board socket or pin, so that the circuit board socket has the ability to self-adjust and fix the inserting tube. When the inserting pin is inserted into the circuit board socket, the circuit board socket can return to its original shape according to its own elasticity, thereby fixing the inserting pin in the circuit board socket.

[0009] Preferably, a front mounting plate is provided at the front end of the housing and located outside the pins.

[0010] The present invention fixes the pins through the front mounting plate and seals and protects the control circuit board, thereby improving the sealing performance of the shell.

[0011] Preferably, a rear mounting plate is provided in the housing and between the front mounting plate and the control circuit board. The rear mounting plate is provided with mounting holes, through which pins pass and are connected to the circuit board sockets.

[0012] The present invention fixes the pins by cooperating with the front mounting plate through the rear mounting plate, and seals and protects the control circuit board, thereby improving the sealing performance of the shell.

[0013] Preferably, the rear mounting plate is provided with an auxiliary fixing protrusion, and the front mounting plate is provided with an auxiliary fixing groove corresponding to the auxiliary fixing protrusion.

[0014] Preferably, a display panel electrically connected to the control circuit board is provided on the outside of the housing.

[0015] Preferably, the control circuit board is provided with an over-temperature protection module, a leakage protection module and a power supply control module.

[0016] Preferably, an over-temperature protection module, a leakage protection module and a power supply control module are provided on the control circuit board.

[0017] The present invention has the following beneficial effects:

[0018] The present invention integrates the circuit board of the cable control protection device in the prior art and installs it in the housing, solving the problem in the prior art that the cable control protection device is damaged by being crushed and dragged on the ground during use. There is no need to develop a mold specifically for the protection of the control circuit board, thus reducing the overall mold cost and overall parts cost. In addition, the present invention installs the control circuit board in the housing, and only the sealing of the charging gun is required to protect the control circuit board, avoiding the problem in the prior art that the cable control protection device needs to have a separate sealing and waterproof structure, and the sealing performance of the cable control protection device is generally poor. The present invention saves mold costs, parts costs, reduces sealing failure points, and does not require a separate sealing design for the control box. At the same time, the cable from the vehicle plug to the control box is eliminated, which facilitates cable material management and reduces cable costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a structural schematic diagram of the present invention;

[0020] Figure 2 is a cross-sectional view of the present invention;

[0021] Figure 3 A schematic diagram of the partial structure of the control circuit board in the present invention;

[0022] Figure 4 for Figure 2 A partial enlarged view of point A in the middle;

[0023] Figure 5 It is a schematic diagram of the explosion structure of the present invention;

[0024] Figure 6 This is a circuit diagram of an existing charging head;

[0025] Figure 7 This is a circuit diagram of the control circuit board in the present invention. DETAILED DESCRIPTION

[0026] The principles and features of the present invention are described below with reference to the accompanying drawings. The examples given are only used to explain the present invention and are not used to limit the scope of the present invention.

[0027] Example

[0028] To make the objectives, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions of the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings herein can be arranged and designed in various different configurations.

[0029] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the invention as claimed, but rather merely represents selected embodiments of the present invention. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without creative effort shall fall within the scope of protection of the present invention.

[0030] In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "disposed," "connected," "connected," and "connected" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integral connections; they may refer to mechanical connections or electrical connections; they may refer to direct connections or indirect connections through an intermediate medium; and they may refer to internal connections between two components. A person of ordinary skill in the art will be able to understand the specific meanings of the above terms in the present invention in specific circumstances.

[0031] The following embodiments of the present invention are described in detail with reference to the accompanying drawings. In the absence of conflict, the following embodiments and features in the embodiments may be combined with each other.

[0032] See also Figures 1 to 7The present invention includes a charging cable 1 for transmitting electric energy and a connecting plug 2 provided at one end of the charging cable 1 and used to be plugged into a power socket. The specification of the charging cable is 3*2.5mm 2 The cable, the connecting plug 2 is electrically connected to the charging cable and the specification of the connecting plug 2 is three-phase. The other end of the charging cable 1 is provided with a charging plug 3 for charging the new energy vehicle.

[0033] See also Figures 1 to 2 The charging plug 3 includes a housing 31 mounted on the charging cable 1 and a control circuit board 32 disposed within the housing 31 and electrically connected to the charging cable 1. The housing 31 is made of insulating plastic, isolating the charging cable 1 and other electronic components within the housing 31 from the user, ensuring both personal safety and safe vehicle charging. A pin 33 for insertion into the new energy vehicle charging port is located within the housing 31 and at the front end of the control circuit board 32. The control circuit board 32 is disposed within the housing 31 between the pin 33 and the charging cable 1 and is responsible for controlling the output power. The control circuit board 32 is removably connected to the pin 33 and is electrically connected to the pin 33.

[0034] The present invention integrates the circuit board of the existing cable control and protection device within the housing 31, resolving the existing problem of damage to the cable control and protection device from being crushed or dragged on the ground during use. This eliminates the need for a separate mold specifically designed to protect the control circuit board 32, reducing both overall mold and component costs. Furthermore, by installing the control circuit board 32 within the housing 31, the present invention only requires sealing the charging gun to protect the control circuit board 32, avoiding the existing problem of requiring a separate sealing and waterproof structure for the cable control and protection device, which generally suffers from poor sealing performance.

[0035] See also Figure 1 and Figure 5 , the control circuit board 32 is equipped with an over-temperature protection module 10, a leakage protection module 11 and a power supply control module 12. A display panel 9 electrically connected to the control circuit board 32 is provided on the outside of the shell 31. The display panel 9 is provided with a control button electrically connected to the power supply control module 12 and used to control the on / off of the circuit, a switch display light electrically connected to the power supply control module 12 and used to display the working status, an over-temperature alarm light electrically connected to the over-temperature protection module 10 and used for over-temperature alarm, and a leakage alarm light electrically connected to the leakage protection module 11 and used for leakage alarm. The user can control the power on / off of the present invention through the control buttons on the display panel 9. At the same time, the user can observe the switch display light, over-temperature alarm light and leakage alarm light on the display panel 9 to understand the working status of the present invention during the charging process at any time, and promptly detect abnormal situations and perform corresponding abnormal situation processing.

[0036] See also Figure 3 A circuit board socket 4 corresponding to the pin 33 is welded to the inner side of the control circuit board 32. The number of circuit board sockets 4 installed is the same as the number of circuit board sockets 4 installed, and the circuit board sockets 4 are made of conductive material for electrical conduction. The user connects the pin 33 to the control circuit board 32 by inserting it into the circuit board socket 4 on the control circuit board 32, achieving both electrical and removable connection. The inner diameter of the circuit board socket 4 is smaller than the insertion tube, and the circuit board socket 4 is provided with an elastic contact structure 42. In this embodiment, the elastic contact structure 42 is an adjustment slot provided on the circuit board socket 4. The adjustment slot divides the circuit board socket 4 into two equal parts, passes through the axis of the circuit board socket 4, and is arranged perpendicular to the axis of the circuit board socket 4. By providing the adjustment slot on the circuit board socket 4, the present invention enables the circuit board socket 4 to self-adjust and secure the insertion tube. When a pin 33, which has a larger diameter than the circuit board socket 4, is inserted into the circuit board socket 4, the circuit board socket 4 can return to its original shape due to its own elasticity, thereby securing the pin 33 within the circuit board socket 4.

[0037] See also Figures 2 to 5 A front mounting plate 5 is located at the front end of the housing 31 and positioned outside the contact pins 33. The front mounting plate 5 fits over the contact pins 33 and is fixedly connected to them. The front mounting plate 5 is removably connected to the housing 31. The inner edge of the front mounting plate 5 is provided with mounting feet that are removably connected to the housing 31. The housing 31 is provided with fixing screws that pass through the housing 31 and threadably engage the mounting feet of the front mounting plate 5. A rear mounting plate 6 is located within the housing 31 and between the front mounting plate 5 and the control circuit board 32. The rear mounting plate 6 has mounting holes 61 defined therein, through which the contact pins 33 pass and connect to the circuit board jacks 4. The present invention integrates the control circuit board 32 within the housing 31, secures the contact pins 33 via the front and rear mounting plates 5, and provides a sealed protection for the control circuit board 32, thereby improving the sealing performance of the housing 31. Furthermore, the rear mounting plate 6 is provided with auxiliary fixing protrusions 7, and the front mounting plate 5 is provided with auxiliary fixing grooves 8 corresponding to the auxiliary fixing protrusions 7.

[0038] See also Figures 6 to 7The present invention integrates the circuit board of the cable control protection device in the prior art into the housing 31, so that the circuit in the original cable control device is integrated into the vehicle's charging plug, solving the problem in the prior art that the cable control protection device is damaged by being crushed and dragged on the ground during use. There is no need to develop a mold specifically for protecting the control circuit board 32, thereby reducing the overall mold cost and overall parts cost. In addition, the present invention installs the control circuit board 32 in the housing 31, and only needs to achieve the sealing of the charging gun to protect the control circuit board 32, avoiding the problem in the prior art that the cable control protection device needs a separate sealing and waterproof structure, and the sealing performance of the cable control protection device is generally poor. The present invention saves mold costs, parts costs, reduces sealing failure points, and does not need to design a separate sealing design for the control box. At the same time, the cable from the vehicle plug to the control box is eliminated, which facilitates cable material management and reduces cable costs.

[0039] It should be noted that, in this document, the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that an article or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or elements inherent to such article or device. In the absence of further limitations, the elements defined by the phrase "includes..." do not exclude the presence of other identical elements in the article or device comprising the elements.

[0040] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. An integrated charging gun, characterized in that: include: A charging cable (1), a connecting plug (2) arranged at one end of the charging cable (1), and a charging plug (3) arranged at the other end of the charging cable (1), wherein the charging plug (3) comprises a housing (31) arranged on the charging cable (1), a control circuit board (32) arranged in the housing (31) and electrically connected to the charging cable (1), and a pin (33) arranged at the front end of the control circuit board (32); The control circuit board (32) is provided with a plurality of circuit board jacks (4) corresponding to the pins (33) on the inner side, and the circuit board jacks (4) are made of conductive material; The circuit board socket (4) or the plug pin (33) is provided with an elastic contact structure (42); the elastic contact structure (42) is an adjustment groove provided on the circuit board socket (4), the adjustment groove divides the circuit board socket (4) into two equal parts, and the adjustment groove passes through the axis of the circuit board socket (4) and is provided perpendicular to the axis of the circuit board socket (4); by providing the adjustment groove on the circuit board socket (4), the circuit board socket (4) has the ability to self-adjust and fix the plug pin, and when the plug pin (33) with a diameter larger than the circuit board socket (4) is inserted into the circuit board socket (4), the circuit board socket (4) can return to its original shape according to its own elasticity, thereby fixing the plug pin (33) in the circuit board socket (4); A front mounting plate (5) is provided at the front end of the housing (31) and is located outside the plug pin (33); the front mounting plate 5 is sleeved on the outside of the plug pin 33 and is fixedly connected to the plug pin 33, and the front mounting plate 5 is detachably connected to the housing 31. The inner edge of the front mounting plate 5 is provided with a mounting foot detachably connected to the housing 31, and the housing 31 is provided with a fixing screw, which passes through the housing 31 and is threadedly connected to the mounting foot of the front mounting plate 5; A rear mounting plate (6) is provided in the housing (31) and between the front mounting plate (5) and the control circuit board (32). A mounting hole (61) is provided on the rear mounting plate (6). The pin (33) passes through the mounting hole (61) and is connected to the circuit board jack (4).

2. The integrated charging gun according to claim 1, characterized in that: The rear mounting plate (6) is provided with an auxiliary fixing protrusion (7), and the front mounting plate (5) is provided with an auxiliary fixing groove (8) corresponding to the auxiliary fixing protrusion (7).

3. The integrated charging gun according to claim 1, characterized in that: A display panel (9) electrically connected to the control circuit board (32) is provided on the outside of the housing (31).

4. The integrated charging gun according to claim 1, characterized in that: The control circuit board (32) is provided with an over-temperature protection module (10), a leakage protection module (11) and a power supply control module (12).

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