Charging gun resistor fixing piece

Abstract

The utility model provides a charging gun resistor fixing piece which comprises a first fixing piece, a first side face of the first fixing piece is connected with a charging gun shell, a second side face of the first fixing piece is provided with a groove, the left side and / or the right side of the groove are / is provided with side wing fixing pieces, and the upper side and / or the lower side of the groove are / is provided with a limiting table. The upper side or the lower side of the groove is provided with a wiring groove and a second fixing piece inserted into the groove, the second fixing piece comprises a resistor bearing plate, and the resistor bearing plate is provided with a chip resistor, a wiring terminal or a wiring hole; and a wire is connected with the chip resistor through the wiring terminal or the wiring hole and is arranged in the wiring groove. According to the utility model, the resistor is fixed and limited from the upper, lower, left, right, front and back directions, so that the resistor in the charging gun is prevented from excessive displacement; the resistor is arranged in the groove, so that the resistor and the resistor connecting piece are prevented from being extruded by other original pieces.

Description

Technical Field

[0001] The utility model relates to the technical field of charging guns for new energy electric vehicles, and in particular to a charging gun resistor fixing part. Background Art

[0002] With the popularity of new energy products (such as electric vehicles), the demand for charging corresponding new energy products has become more urgent. The equipment for charging new energy vehicles on the market is a charging gun. The resistor used in the charging gun is usually a metal film resistor. The two poles of the resistor are connected to the wire, and then the wire is crimped to the terminal or connected in parallel with other wires, and finally put together with the wire. Utility Model Content

[0003] At present, since the resistor in the charging gun is not fixed and the wires are not fixed, when the wires are subjected to force, the wires connected to the two poles of the resistor are at risk of falling off, and after the resistor is connected, it is necessary to wrap the resistor and the wiring position with a heat shrink tube to prevent electrical short circuit. Whether the two ends of this thin film resistor are crimped by a copper tape machine or welded, there is a certain risk of falling off, and if the heat shrink tube wrapped at the crimping point or welding point is broken, or even the heat shrink tube is not wrapped, the risk of short circuit is also very high. In addition, after the resistor and the wire are connected, they can only be placed together with the wires, and there is also a risk that the resistor itself will be crushed or the soldering feet at both ends of the resistor will be broken. In view of this, the utility model provides a charging gun resistor fixing to fix and protect the resistor in the charging gun, and to avoid problems such as short circuit or open circuit of the charging gun due to resistor problems. The specific technical solution is as follows:

[0004] A charging gun resistor fixing part, comprising:

[0005] A first fixing member, wherein the first side of the first fixing member is connected to the charging gun housing, the second side of the first fixing member is provided with a groove, the left side and / or the right side of the groove are provided with a side wing fixing member, the upper side and / or the lower side of the groove are provided with a limit platform, the upper side or the lower side of the groove is provided with a wiring groove, and a second fixing member inserted into the groove, the second fixing member includes a resistor carrier plate, the resistor carrier plate is provided with a chip resistor, a wiring terminal or a wiring hole, the wire is connected to the chip resistor through the wiring terminal or the wiring hole and is placed in the wiring groove.

[0006] Furthermore, a forward movement blocking member with an inclined surface is provided on the side wing fixing member. When the second fixing member is inserted into the groove, the second fixing member contacts and squeezes the inclined surface of the forward movement blocking member. When the second fixing member is fully inserted into the groove, the second fixing member disengages from the inclined surface of the forward movement blocking member, and the forward movement blocking member blocks the second fixing member from moving forward.

[0007] Furthermore, a rear baffle is provided at the bottom of the groove, and the rear baffle blocks the second fixing member from moving backward.

[0008] Furthermore, a bottom fixing groove is formed on the rear baffle, and the bottom fixing groove is in a straight line shape. After the second fixing member is inserted into the groove, it can be further inserted into the bottom fixing groove on the rear baffle, thereby limiting the up and down displacement of the second fixing member.

[0009] Furthermore, an elastic sheet is provided on the upper side and / or the lower side of the bottom fixing groove.

[0010] Furthermore, the resistor bearing plate is provided with supporting legs, and when the second fixing member is inserted into the groove, the supporting legs contact the groove and support the second fixing member.

[0011] Furthermore, the supporting legs are made of insulating material or insulating and anti-slip material.

[0012] Furthermore, the first fixing member is made of insulating material.

[0013] Beneficial effects:

[0014] The utility model fixes the resistor in the charging gun by setting a first fixing member and a second fixing member, fixes and limits the resistor in six directions, such as up, down, left, right, front and back, so as to ensure that the resistor in the charging gun will not be excessively displaced; by providing a groove in the second fixing member, the resistor is placed in the groove, so as to achieve "protection" for the resistor and prevent the resistor and the resistor connector from being squeezed by other components;

[0015] Using chip resistors, the resistors are fixed to the resistor carrier board, and then the resistor carrier board is fixed to achieve the fixation of the resistors. The component inclusion relationship is heavily arranged to better achieve the fixation of the resistors in the charging gun. The resistors are fixed by both rigid fixation, such as supporting feet, and elastic fixation, such as clips. This allows a certain amount of adjustment space for the resistor fixation, so as to better cope with different situations, which also facilitates the installation, maintenance and replacement of resistors. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 A schematic diagram of a three-dimensional structure of a charging gun resistor fixing member provided in an embodiment of the utility model;

[0017] Figure 2 An exploded view of a charging gun resistor fixing member provided in an embodiment of the utility model;

[0018] Figure 3 A schematic diagram of the three-dimensional structure of a first fixing member of a charging gun resistor fixing member provided by an embodiment of the utility model;

[0019] Figure 4 A schematic diagram of the three-dimensional structure of a second fixing member of a charging gun resistor fixing member provided by an embodiment of the utility model;

[0020] The following are the descriptions of the figures:

[0021] 1. Charging gun housing;

[0022] 2. First fixing member; 21. Wiring groove; 22. Side wing fixing member; 23. Limiting platform; 24. Rear baffle;

[0023] 3. Second fixing member; 31. Wiring terminal; 32. Resistor bearing plate; 33. Supporting foot column; 34. Resistor. DETAILED DESCRIPTION

[0024] In the following description, directional terms such as "up", "down", "left", "right", "front" and "back" are used. It should be understood that these directional terms are with respect to the directions shown in the figures, and the terms are used for the convenience of description rather than to limit the present invention.

[0025] like Figure 1 , Figure 2 As shown, the utility model provides a charging gun resistor fixing part, so that the resistor is fixed inside the charging gun and the resistor is protected to work normally. The charging gun resistor fixing part includes from the outside to the inside

[0026] The charging gun housing 1, the first fixing part 2, and the second fixing part 3, the resistor 34 is detachably fixed on the second fixing part 3, the second fixing part 3 is detachably fixed on the first fixing part 2, and the first fixing part 2 is detachably fixed on the charging gun housing 1.

[0027] In another embodiment,

[0028] The first fixing member 2 is detachably fixed to the charging gun housing 1 by means of a buckle. Specifically, the first fixing member 2 has a first side surface, i.e., a side where the first fixing member 2 is connected and fixed to the charging gun housing 1. Two or more elastic buckles are provided on the first side surface of the first fixing member 2. Correspondingly, two or more openings and blind holes for positioning and guiding are provided on the charging gun housing 1. The openings here correspond to the buckles on the first side surface of the first fixing member 2 in terms of position, quantity, size and shape, so that the buckles can be placed in the openings.

[0029] In another embodiment,

[0030] The charging gun housing 1 has an internal cavity, and at least a portion of the first fixing member 2 is disposed in the internal cavity of the charging gun housing 1 .

[0031] In another embodiment,

[0032] The first fixing member 2 has a second side surface, that is, a side opposite to the first side surface of the first fixing member 2, and the second fixing member 3 is detachably fixed on the second side surface of the first fixing member 2;

[0033] Specifically, the first fixing member 2 has a second side surface with a groove, and the length, width and depth of the groove are slightly larger than the corresponding values ​​of the second fixing member 3, so that the groove can accommodate the second fixing member 3, that is, the second fixing member 3 can be fixed in the groove.

[0034] In another embodiment,

[0035] like Figure 3 As shown, the left and / or right sides of the groove on the second side of the first fixing member 2 are provided with wing fixing members 22, and the wing fixing members 22 can be elastic buckles, springs, springs, etc. Figure 3 As shown in the coordinate axis direction in the upper left corner, when the second fixing member 3 is inserted into the groove, the second fixing member 3 contacts and squeezes the wing fixing member 22 in the lateral direction (i.e., in the positive and negative directions of the X-axis). Accordingly, the wing fixing member 22 provides a supporting force in the lateral direction (i.e., in the positive and negative directions of the X-axis) for the second fixing member 3, thereby fixing the second fixing member 3 in the lateral direction and preventing it from shaking in the lateral direction.

[0036] The wing fixing member 22 is preferably an elastic buckle. Furthermore, the elastic buckle here is U-shaped, and a forward movement blocking member with an inclined surface is provided along the Z-axis direction at the end of the wing fixing member 22 (the elastic buckle) that contacts the second fixing member 3, and the inclination angle of the inclined surface gradually increases from the outside to the inside, that is, when the second fixing member 3 is inserted into the groove, the second fixing member 3 contacts the inclined surface of the forward movement blocking member, and the force along the Z-axis direction is converted into an extrusion force in the X-axis direction, that is, the wing fixing member 22 (the elastic buckle) is squeezed in the X-axis direction; when the second fixing member 3 is fully inserted into the groove, the second fixing member 3 is disengaged from the inclined surface of the forward movement blocking member, and the forward movement blocking member is located in front of the second fixing member 3 in the Z-axis direction, thereby achieving the blocking of the displacement of the second fixing member 3 in the Z-axis direction, that is, preventing the second fixing member 3 from moving forward and preventing it from falling out of the groove forward.

[0037] In another embodiment,

[0038] like Figure 3As shown, a wiring groove 21 is provided on the upper side of the groove on the second side surface of the first fixing member 2. Considering that when the second fixing member 3 is fully inserted into the groove, there are solder joints on the resistor 34 and wires need to be connected. Therefore, the wiring groove 21 is provided on the groove to avoid the solder joints and wires on the second fixing member 3. This is also a protection for the related parts of the connection resistor 34, avoiding the corresponding parts from being squeezed and reducing the risk probability of short circuit or open circuit.

[0039] In another embodiment,

[0040] like Figure 3 As shown, a stopper 23 is provided at the middle position of the lower side of the groove on the second side of the first fixing member 2 and / or at the middle position of the upper side of the groove on the second side of the first fixing member 2. The stopper 23 extends and protrudes in the Y-axis direction, so that the length value of the groove in the Y-axis direction (i.e., the distance value between the upper side and the lower side of the groove, i.e., the height value of the groove) is the smallest at its middle position. The effect of such a setting is that when the second fixing member 3 is fully inserted into the groove, it can move in the groove along the Y-axis direction. Therefore, the stopper 23 is provided to reduce the length value of the groove in the Y-axis, thereby limiting the moving space of the second fixing member 3 in the Y-axis direction. Of course, the stopper 23 can also be set at the left or right position of the center of the groove or other positions. Considering factors such as symmetrical and average force, the middle position is preferred. The length value of the stopper 23 in the Z-axis direction can be less than or equal to the length value of the groove in the Z-axis direction.

[0041] In another embodiment,

[0042] like Figure 3 As shown, a rear baffle 24 is provided at the bottom of the groove on the second side surface of the first fixing member 2 in the Z-axis direction. When the second fixing member 3 is inserted into the groove, the rear baffle 24 limits the further displacement of the second fixing member 3 in the Z-axis direction (i.e., further insertion), thereby preventing the second fixing member 3 from partially or completely coming out of the first fixing member 2 due to excessive force during insertion; at the same time, when the second fixing member 3 is installed and fixed, the rear baffle 24 works together with the forward movement blocking member to prevent the second fixing member 3 from being displaced in the Z-axis direction due to later product use, falling, etc., thereby reducing the risk of product damage.

[0043] In another embodiment,

[0044] The rear baffle 24 is connected to the limit platform 23 in the Y-axis direction to form an organic whole. The rear baffle 24 supports the limit platform 23. The connection method can be selected by snap-fitting, gluing, etc., and of course, injection molding can also be selected as an integral part.

[0045] In another embodiment,

[0046] The rear baffle 24 is provided with a bottom fixing groove, which is in a straight line shape and extends along the X-axis direction. The length of the bottom fixing groove in the X-axis direction is equal to the length of the corresponding position of the rear baffle 24 in the X-axis direction, and the length of the bottom fixing groove in the Y-axis direction is equal to or slightly greater than the length of the second fixing member 3 in the Y-axis direction. After the second fixing member 3 is inserted into the groove and contacts the rear baffle 24, it can be further inserted into the bottom fixing groove on the rear baffle 24, thereby further fixing the second fixing member 3 and limiting the displacement of the second fixing member 3 in the Y-axis direction. Of course, the bottom fixing groove can be additionally provided with elastic buckles, springs, springs, etc., so as to achieve better fixation. For example, two spring sheets are arranged opposite to each other on the upper and lower sides of the bottom fixing groove, and there is a small gap or contact between the two spring sheets. When the second fixing member 3 is inserted into the bottom fixing groove, the second fixing member 3 squeezes the spring sheets and enters the bottom fixing groove. Correspondingly, the spring sheets will also generate a reaction force on the second fixing member 3. Since the spring sheets are opposite to each other, the corresponding reaction forces are also opposite to each other, thereby achieving clamping and fixing of the second fixing member 3. Of course, spring sheets can also be arranged only on the upper side or the lower side of the bottom fixing groove, so that the spring sheets on one side of the bottom fixing groove and the other side of the bottom fixing groove cooperate with each other, and the spring sheets squeeze the second fixing member 3 onto the side wall of the other side of the bottom fixing groove, thereby achieving clamping and fixing of the second fixing member 3.

[0047] In another embodiment,

[0048] like Figure 4 As shown, the second fixing member 3 includes a resistor 34, which is a chip resistor. The resistor 34 is fixed to one side of a resistor carrier plate 32, which can be a PCB board. A wiring terminal 31 is provided on the other side of the resistor carrier plate 32. The wire is connected to the resistor 34 by connecting the wiring terminal 31. Of course, the wiring terminal 31 can be omitted, and two holes are directly provided on the PCB board. The wire passes through the holes and is welded on the pads of the holes to achieve the connection of the resistor 34. Of course, a wiring terminal or a wiring hole can also be provided on the PCB board, and the wire is connected to the chip resistor through the wiring terminal or the wiring hole and is placed in the routing groove 21.

[0049] The resistor support plate 32 is provided with a support foot 33 on a side different from the side of the terminal 31. The support foot 33 is made of insulating material (of course, on the premise of ensuring insulation, a material with a high static friction coefficient and anti-slip can be selected to provide a stable and safe support for the resistor support plate 32). When the second fixing member 3 is inserted into the groove, the support foot 33 contacts the lower side of the groove and supports the second fixing member 3. The support foot 33 has the function of limiting the upward and downward displacement of the resistor support plate 32 to a certain extent.

[0050] During assembly, first align the first fixing part 2 with the opening on the charging gun housing 1 and press it in. The buckle on the first fixing part 2 will bounce into the opening on the charging gun housing 1. The buckle cooperates with the opening to fix the first fixing part 2 on the charging gun housing 1 and prevent it from falling off. Align the second fixing part 3 with the groove of the first fixing part 2 and press it in. During the pressing process, the resistor bearing plate 32 will open the buckle in the groove. After being pressed into place, the buckle will rebound to the initial position, fixing the second fixing part 3 and preventing it from falling off. After being fully assembled, the second fixing part 3 will be fixed and protected inside the first fixing part 2, and will not be crushed by other parts, nor will it contact other wires to cause a short circuit.

[0051] Although the present invention is described herein with reference to the illustrative embodiments of the present invention, the above embodiments are merely preferred embodiments of the present invention, and the embodiments of the present invention are not limited to the above embodiments. It should be understood that those skilled in the art can design many other modifications and implementations, which will fall within the scope and spirit of the principles of the present invention.

Claims

1. A charging gun resistor fixing member, characterized in that: include: A first fixing member, wherein the first side of the first fixing member is connected to the charging gun housing, the second side of the first fixing member is provided with a groove, the left side and / or the right side of the groove are provided with a side wing fixing member, the upper side and / or the lower side of the groove are provided with a limit platform, the upper side or the lower side of the groove is provided with a wiring groove, and a second fixing member inserted into the groove, the second fixing member includes a resistor carrier plate, the resistor carrier plate is provided with a chip resistor, a wiring terminal or a wiring hole, the wire is connected to the chip resistor through the wiring terminal or the wiring hole and is placed in the wiring groove.

2. A charging gun resistor fixing member according to claim 1, characterized in that: The side wing fixing piece is provided with a forward movement blocking piece with an inclined surface. When the second fixing piece is inserted into the groove, the second fixing piece contacts and squeezes the inclined surface of the forward movement blocking piece. When the second fixing piece is fully inserted into the groove, the second fixing piece is disengaged from the inclined surface of the forward movement blocking piece, and the forward movement blocking piece blocks the second fixing piece from moving forward.

3. The charging gun resistor fixing member according to claim 1, characterized in that: A rear baffle is provided at the bottom of the groove, and the rear baffle blocks the second fixing member from moving backward.

4. A charging gun resistor fixing member according to claim 3, characterized in that: The rear baffle is provided with a bottom fixing groove in a straight line shape. After the second fixing member is inserted into the groove, it can be further inserted into the bottom fixing groove on the rear baffle, thereby limiting the up and down displacement of the second fixing member.

5. A charging gun resistor fixing according to claim 4, characterized in that: The upper side and / or the lower side of the bottom fixing groove is provided with an elastic sheet.

6. The charging gun resistor fixing member according to claim 1, characterized in that: The resistor bearing plate is provided with supporting legs, and when the second fixing member is inserted into the groove, the supporting legs contact the groove and support the second fixing member.

7. A charging gun resistor fixing according to claim 6, characterized in that: The supporting foot column is made of insulating material or insulating and anti-slip material.

8. The charging gun resistor fixing member according to claim 1, characterized in that: The first fixing member is made of insulating material.

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