Power terminal replaceable charging gun with safe anti-touch PIN

Abstract

The utility model discloses a power terminal replaceable charging gun with a safe anti-touch PIN, which comprises a gun body and a gun head, and the gun head comprises a gun head shell detachably fixed to the front part of the gun body and a power terminal assembly located in the gun head shell. The power terminal assembly comprises a plurality of terminal bases arranged at the front end of the gun body main body and replaceable power terminals correspondingly fixed on the terminal bases; the replaceable power terminal is characterized in that the replaceable power terminal is provided with a connecting sleeve sleeved on the terminal base, the inner circumference of the connecting sleeve is provided with a reed which is clamped and fixed with the terminal base, and the center of the inner side of the replaceable power terminal is riveted and fixed with a safe anti-touch PIN. The replaceable power terminal provided by the utility model is very convenient to assemble and disassemble, and does not interfere with the arrangement of the safe anti-touch PIN.

Description

Technical Field

[0001] The utility model relates to the technical field of charging guns, and in particular to a charging gun with replaceable power terminals and a safety anti-touch PIN. Background Art

[0002] With the increasing popularity of new energy vehicles, the use of high-power DC charging guns is becoming increasingly popular. However, due to the heavy cables, the gun tip is more likely to break if dropped during use. Furthermore, the DC power terminals (pins) are susceptible to severe wear and tear, resulting in a short lifespan, which necessitates replacing the entire gun. This is complex, inefficient, and costly. However, if not replaced promptly, it can lead to safety accidents. For this reason, the industry has designed a type of charging gun with replaceable power terminals and gun tip panels. The gun tip panel of this type of charging gun is removable and connects to the front of the main housing of the charging gun, while the internal power terminals are locked to the rear terminal block with axial screws. If the charging gun is damaged from a drop, both the gun tip panel and internal power terminals can be removed and replaced.

[0003] However, the aforementioned replaceable power terminal design is not suitable for some charging cables currently on the market that must comply with the North American Charging Standard (NACS). This is because NACS charging cables require a safety pin located in the center of the power terminal. However, existing replaceable power terminals use an axially oriented locking screw to secure the terminal, which interferes with the layout of the safety pin and complicates its installation. If a safety pin is desired, the axially oriented screw cannot be used to secure the replaceable power terminal, and a different terminal positioning structure must be designed.

[0004] In addition, since the NACS charging gun head is smaller than the conventional CCS series charging gun, if the power terminal and the safety anti-touch PIN are assembled and replaced separately at the front end of the narrow gun head, if the structural design is not good, not only will the operation be cumbersome, but it will often cause interference between the two.

[0005] Therefore, under this premise, considering the user's usage scenario, there is an urgent need for a replaceable power terminal charging gun with a safety anti-touch PIN, whose replaceable installation structure of the power terminal will not affect the setting of the safety anti-touch PIN. Summary of the Invention

[0006] The purpose of the utility model is to provide a charging gun with a replaceable power terminal and a safety anti-touch PIN, wherein the replaceable power terminal is easy to install and remove and does not interfere with the setting of the safety anti-touch PIN.

[0007] In order to solve the above technical problems, the present invention provides the following technical solutions: a charging gun with replaceable power terminals and a safety anti-touch PIN, comprising a gun body and a gun head, the gun head comprising a gun head shell detachably fixed to the front of the gun body and a power terminal assembly located in the gun head shell, the power terminal assembly comprising a plurality of terminal bases arranged at the front end of the gun body and replaceable power terminals correspondingly fixed on each terminal base; it is characterized in that: the replaceable power terminal has a connecting sleeve that is sleeved on the terminal base, a spring is provided on the inner periphery of the connecting sleeve for clamping with the terminal base, and a safety anti-touch PIN is riveted and fixed on the center of the inner side of the replaceable power terminal.

[0008] Furthermore, the replaceable power terminal described in the present invention includes a split-slot terminal body and the connecting sleeve formed at the rear of the split-slot terminal body, and a rivet groove is provided at the center of the inner bottom of the split-slot terminal body, which is fixed with the rivet head arranged at the end of the safety anti-touch PIN.

[0009] Furthermore, the gun head housing of the present invention is formed with a power terminal pressing sleeve for pressing and fixing the replaceable power terminal on the terminal base.

[0010] Furthermore, the front end of the power terminal pressing sleeve in the present invention is formed with a circle of retaining edge to prevent the replaceable power terminal from falling out, and at the same time, a circle of inner step is formed at the rear position of the inner periphery of the power terminal pressing sleeve, and the inner step is inwardly offset against a circle of outer step formed on the outer periphery of the connecting sleeve of the replaceable power terminal, thereby pressing and fixing the replaceable power terminal, ensuring that the positioning of the replaceable terminal in the gun head housing is more stable.

[0011] Furthermore, the gun head shell in the present invention is provided with a plurality of recessed positioning holes, and the gun body is provided with screw holes corresponding to the recessed positioning holes, which are used to be threadedly connected with the screws inserted through the recessed positioning holes to fix the gun head shell to the gun body.

[0012] Furthermore, a screw plug for sealing the screw is inserted into the recessed positioning hole in the present invention.

[0013] The advantages of adopting the technical solution of this utility model are as follows:

[0014] 1. The charging gun of this utility model uses a spring clip with a built-in connecting sleeve to fix the rear of the replaceable power terminal to the terminal base, eliminating the existing method of fixing the terminal base with an axial locking screw, thereby freeing up the central area for setting the safety anti-touch PIN. This ensures that the safety anti-touch PIN and the replaceable power terminal do not interfere with each other, ensuring that the charging gun can adapt to the North American Charging Standard (NACS) and expanding the application range of the charging gun.

[0015] 2. The safety pin of this charging gun is pre-riveted directly into the center of the replaceable power terminal (slotted terminal body). It can be installed and removed from the terminal base along with the replaceable power terminal. Protected by the replaceable power terminal, it is protected from collision damage. This also ensures full utilization of the narrow space inside the gun head housing, optimizing the mounting structure for both the replaceable power terminal and the safety pin.

[0016] 3. In the actual use of the charging gun of the present invention, the replaceable terminals do not need to be frequently plugged and unplugged. Therefore, the internal spring of the connecting sleeve is designed with a larger plug-in and pull-out force so that it can be tightly connected with the terminal base, meeting the requirements of passing large current while keeping the temperature rise low. It is also convenient for replacement when damaged.

[0017] The objects, advantages and features of the present invention will be illustrated and explained by the following non-limiting description of preferred embodiments thereof, which are given by way of example only with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the three-dimensional assembly structure of the utility model (gun head disassembled state);

[0019] Figure 2 This is a schematic diagram of the main cross-sectional structure of the utility model (inside the gun head);

[0020] Figure 3 This is a schematic diagram of the three-dimensional assembly structure of the terminal base, replaceable terminal and safety anti-touch PIN in the utility model;

[0021] Figure 4 for Figure 3 sectional view of .

[0022] Numbers in the figure: 1. Gun body; 101. Screw hole; 2. Gun head shell; 201. Power terminal sleeve; 201a. Stop edge; 201b. Inner step; 202. Recessed positioning hole; 3. Terminal base; 4. Replaceable power terminal; 401. Connecting sleeve; 401a. Outer step; 402. Split-slot terminal body; 402a. Rivet groove; 5. Spring; 6. Safety anti-touch PIN; 6a. Rivet head; 7. Screw; 8. Screw plug. DETAILED DESCRIPTION

[0023] Example: The following combination Figures 1 to 4 As shown, the specific implementation of the power terminal replaceable charging gun with a safety anti-touch PIN provided by the utility model is described as follows:

[0024] This charging gun with replaceable power terminals and a safety anti-touch PIN is similar to conventional technology, and has a gun body 1 and a gun head. The gun head is composed of a gun head shell 2 that is detachably fixed to the front of the gun body 1 and a power terminal assembly located inside the gun head shell 2. In this embodiment, the power terminal assembly has two terminal bases 3 arranged at the front end of the gun body 1 and replaceable power terminals 4 correspondingly fixed on each terminal base 3.

[0025] The core improvements of the present invention are as follows: The replaceable power terminal 4 in this embodiment has a connecting sleeve 401 which is sleeved on the terminal base 3. The inner periphery of the connecting sleeve 401 is provided with a spring 5 which is fixed with the terminal base 3. At the same time, a safety anti-touch PIN 6 is fixed with a riveted center on the inner side of the replaceable power terminal 4. Figure 3 and Figure 4 shown.

[0026] Specific combination Figure 1 and Figure 2 As shown, the replaceable power terminal 4 is composed of a split-slot terminal body 402 and the connecting sleeve 401 formed at the rear of the split-slot terminal body 402, and a rivet groove 402a is provided at the center of the inner bottom of the split-slot terminal body 402, which is fixed with the rivet head 6a arranged at the end of the safety anti-touch PIN6.

[0027] At the same time, still combined Figure 1 and Figure 2 As shown, in this embodiment, the gun head housing 2 is formed with a power terminal pressing sleeve 201 for pressing and fixing the replaceable power terminal 4 to the terminal base 3. The front end of the power terminal pressing sleeve 201 is formed with a circle of retaining edge 201a to prevent the replaceable power terminal 4 from falling out. At the same time, the inner circumference of the power terminal pressing sleeve 201 is formed with an inner step 201b at the rear position. The inner step 201b is inwardly abutted against an outer step 401a formed on the outer circumference of the connecting sleeve 401 of the replaceable power terminal 4, thereby pressing and fixing the replaceable power terminal 4.

[0028] Still like Figure 1 and Figure 2 As shown, in this embodiment, the upper portion of the gun head housing 2 is provided with two recessed positioning holes 202, and the upper portion of the gun body 1 is provided with screw holes 101 corresponding to the recessed positioning holes 202, which are used to threadably engage screws 7 inserted through the recessed positioning holes 202 to secure the gun head housing 2 to the gun body 1. Furthermore, screw plugs 8 are inserted into the recessed positioning holes 202 to seal the screws 7.

[0029] Of course, in addition to the above-mentioned recessed positioning hole 202, a positioning hole (not visible in the figure) is also provided in the middle of the gun head shell 2 in this embodiment. The positioning hole is also used to pass a screw (not marked in the figure) and threadedly connect it with the corresponding screw hole (not marked in the figure) provided in the middle of the gun body 1 to fix the gun head shell 2 to the gun body 1.

[0030] Of course, the above are merely specific application examples of the present invention and do not constitute any limitation on the scope of protection of the present invention. In addition to the above embodiments, the present invention may also have other implementations. Any technical solution formed by equivalent replacement or equivalent transformation falls within the scope of protection claimed by the present invention.

Claims

1. A charging gun with a replaceable power terminal and a safety anti-touch PIN, comprising a gun body (1) and a gun head, wherein the gun head comprises a gun head shell (2) detachably fixed to the front of the gun body (1) and a power terminal assembly located in the gun head shell (2), wherein the power terminal assembly comprises a plurality of terminal bases (3) arranged at the front end of the gun body (1) and replaceable power terminals (4) correspondingly fixed to each terminal base (3); characterized in that: The replaceable power terminal (4) has a connecting sleeve (401) sleeved on the terminal base (3), and a spring (5) is provided on the inner periphery of the connecting sleeve (401) for clamping with the terminal base (3). At the same time, a safety anti-touch PIN (6) is fixed by riveting at the inner center of the replaceable power terminal (4).

2. A power terminal replaceable charging gun with a safety anti-touch PIN according to claim 1, characterized in that: The replaceable power terminal (4) comprises a split-slot terminal body (402) and the connecting sleeve (401) formed at the rear of the split-slot terminal body (402), and a rivet pressing groove (402a) is provided at the center of the inner bottom of the split-slot terminal body (402), which is fixed in cooperation with a rivet pressing head (6a) provided at the end of the safety anti-touch PIN (6).

3. The power terminal replaceable charging gun with a safety anti-touch PIN according to claim 1, characterized in that: A power terminal pressing sleeve (201) for pressing and fixing the replaceable power terminal (4) onto the terminal base (3) is formed on the gun head housing (2).

4. A power terminal replaceable charging gun with a safety anti-touch PIN according to claim 3, characterized in that: The front end of the power terminal pressing sleeve (201) is formed with a circle of retaining edge (201a) to prevent the replaceable power terminal (4) from falling outward, and at the same time, a circle of inner step (201b) is formed at the rear position of the inner circumference of the power terminal pressing sleeve (201), and the circle of inner step (201b) is inwardly abutted against a circle of outer step (401a) formed on the outer circumference of the connecting sleeve (401) of the replaceable power terminal (4), thereby pressing and fixing the replaceable power terminal (4).

5. The power terminal replaceable charging gun with a safety anti-touch PIN according to claim 1, characterized in that: The gun head shell (2) is provided with a plurality of recessed positioning holes (202), and the gun body (1) is provided with screw holes (101) corresponding to the recessed positioning holes (202), which are used for threaded connection with screws (7) inserted through the recessed positioning holes (202) to fix the gun head shell (2) to the gun body (1).

6. A power terminal replaceable charging gun with a safety anti-touch PIN according to claim 5, characterized in that: A screw plug (8) for sealing the screw (7) is inserted into the recessed positioning hole (202).

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