An integrated connector and charging gun

Abstract

The utility model provides a kind of integrated connector and charging gun belongs to charging gun technical field, comprising: shell, including intercommunication first through -hole and second through -hole intercommunication;Cable, a plurality of terminal blocks are provided at one end, and the plurality of terminal blocks are respectively inserted in corresponding first through -hole in second through -hole, wherein, the diameter of the other end of cable is less than the diameter of second through -hole, and first gap is formed between the two;Colloid is injected into second through -hole along first gap, and local injection is full or full second through -hole, when colloid solidifies, the outside of one end where terminal block is provided on cable forms first soft rubber layer.The utility model fills or fills second through -hole by the mode of injecting glue, to form protective layer on the outside of one end where terminal block is provided on cable, to improve the waterproof, dustproof performance of entire connector, and the entire connector is formed similar integrated structure, to improve the strength of entire connector.

Description

Technical Field

[0001] This utility model belongs to the field of charging gun technology, and relates to an integrated connector, particularly a charging gun with an integrated connector. Background Technology

[0002] As a promising green transportation tool, new energy electric vehicles will see rapid popularization as technology advances. The main charging infrastructure for new energy electric vehicles includes charging piles, charging guns, charging sockets, and in-vehicle high-voltage connectors. The charging device connects to the charging cable via connectors (charging guns, charging sockets). These connectors are crucial for connecting the new energy electric vehicle to the power supply equipment; current connectors include both DC and AC chargers.

[0003] Connectors, as common components in electronic devices, are widely used in various electrical connection systems. Their main function is to achieve stable connections and signal transmission between circuits. A connector typically consists of two main parts: a housing and a cable that plugs into the housing. The housing is generally made of insulating material, providing a certain level of mechanical strength and protection; while the cable is responsible for transmitting electrical signals from one device or module to another.

[0004] In practical use, connectors often need to undergo multiple mating and unmating operations and may be exposed to complex environmental conditions (such as high temperature, high humidity, vibration, etc.) for extended periods. Over time, the connection between the cable and the housing may loosen due to mechanical fatigue, thermal expansion and contraction, etc. This loosening not only leads to increased contact resistance, affecting signal stability, but may also cause poor contact or even open circuits, and in severe cases, can cause equipment failure or damage.

[0005] To improve the sealing performance of connectors and prevent external moisture, dust, and other impurities from entering the housing, a sealing ring is usually placed between the housing and the cable. The sealing ring is installed in a designated position using an interference fit or clearance fit, providing good waterproofing and dustproofing. However, as a rubber or silicone elastomer material, the physical properties of the sealing ring gradually deteriorate over time, especially under harsh environments such as high temperature, ultraviolet radiation, and chemical corrosion, where aging is more likely to occur.

[0006] When the sealing ring ages, its elasticity and sealing performance decrease significantly, weakening or even failing to provide a proper seal. At this point, external contaminants such as moisture and dust can seep into the connector through the gap between the housing and the cable, causing problems such as moisture absorption, oxidation, and short circuits in the internal components. This not only affects the connector's normal signal transmission efficiency but can also trigger electrical faults, reduce the overall reliability of the equipment, and shorten the connector's lifespan.

[0007] Furthermore, the intrusion of moisture can trigger deeper problems. For example, in high-frequency signal transmission, tiny amounts of moisture adhering to the contact surface can lead to signal attenuation and increased noise, thereby affecting communication quality; in extreme cases, a humid environment can also cause electrolytic corrosion, further exacerbating the deterioration of the contact surface. Utility Model Content

[0008] The purpose of this invention is to address the aforementioned problems in existing technologies by proposing an integrated connector with reliable waterproof performance.

[0009] The objective of this utility model can be achieved through the following technical solution: an integrated connector, comprising:

[0010] The shell has a plurality of first through holes at one end along the axial direction of the shell, and a second through hole at the other end, wherein the first through holes and the second through holes are connected.

[0011] The cable has multiple terminals at one end, and these terminals are respectively inserted into the corresponding first through holes through the second through hole. The diameter of the other end of the cable is smaller than the diameter of the second through hole, and a first gap is formed between them.

[0012] The colloid is injected into the second through hole along the first gap, partially or completely filling the second through hole. After the colloid cures, a first soft adhesive layer is formed on the outer side of the end of the cable where the wiring terminal is located.

[0013] In the aforementioned integrated connector, the adhesive located at the first gap extends a predetermined distance away from the terminal block. After the adhesive cures, a second soft adhesive layer can be formed on the cable surface at the first gap. When the adhesive partially fills the second through hole, the first soft adhesive layer and the second soft adhesive layer are separately disposed; when the adhesive fills the second through hole, the first soft adhesive layer and the second soft adhesive layer are integrally disposed.

[0014] In the aforementioned integrated connector, an end cap and a housing are provided along the axial direction of the housing, and the end cap and the housing are connected by a plug-in fit. An exhaust channel is provided at the plug-in point between the end cap and the housing. One end of the exhaust channel is connected to a second through hole, and the other end of the exhaust channel is connected to the external space where the connector is located.

[0015] In the aforementioned integrated connector, a first insertion portion is provided on the end cap, and a corresponding second insertion portion is provided on the outer shell. When the first insertion portion and the second insertion portion are inserted into each other, a second gap is formed between the first end of the first insertion portion and the first end of the second insertion portion, a third gap is formed between the outer surface of the first insertion portion and the inner surface of the second insertion portion, and a fourth gap is formed between the second end of the first insertion portion and the second end of the second insertion portion. The second gap, the third gap, the fourth gap, and the second through hole are connected to each other to form an exhaust channel.

[0016] In the aforementioned integrated connector, the first insertion part is an annular protrusion, the second insertion part is an annular groove, and the first end of the second insertion part is the end face where the opening of the annular groove is located, and the second end is the end face where the bottom of the annular groove is located. The first end of the first insertion part is the end face of the annular protrusion that is opposite to the end face where the opening of the annular groove is located, and the second end is the end face of the annular protrusion that is opposite to the end face where the bottom of the annular groove is located.

[0017] In the aforementioned integrated connector, a limiting structure is provided between the end cap and the outer shell, and the limiting structure includes a first limiting end face provided on the end cap and a second limiting end face provided on the outer shell, wherein the distance between the first limiting end face and the end face where the second end is located on the first plug portion is less than the distance between the second limiting end face and the end face where the second end is located on the second plug portion.

[0018] In the aforementioned integrated connector, a first connecting portion is provided on the end cap, and a first connecting hole is provided on the first connecting portion, and a first limiting end face is provided on the end face of the first connecting portion; a second connecting portion is provided on the outer shell, and a second connecting hole is provided on the second connecting portion, and a second limiting end face is provided on the end face of the second connecting portion.

[0019] In the aforementioned integrated connector, the first connecting part is a recessed platform, and the first connecting hole and the first through hole are provided on the first connecting part. The second connecting part includes multiple connecting posts provided on the inner wall of the second through hole. Each connecting post is provided with a second connecting hole. The end face of each connecting post facing the second insertion part is spliced ​​to form a second limiting end face.

[0020] In the aforementioned integrated connector, a positioning structure is provided between the end cap and the housing, and the positioning structure includes a positioning protrusion or positioning recess on the end cap and a corresponding positioning recess or positioning protrusion on the housing. The circumferential degree of freedom between the end cap and the housing is limited by the interlocking of the positioning protrusion and the positioning recess.

[0021] In the aforementioned integrated connector, a clamp is nested at the end of the cable where the terminal block is located.

[0022] This utility model also provides a charging gun, including the aforementioned integrated connector.

[0023] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0024] (1) The present invention provides an integrated connector, which partially fills or fills the second through hole by injection, thereby forming a protective layer on the outside of the end of the cable with the terminal block, thereby improving the waterproof and dustproof performance of the entire connector, and forming the entire connector into a similar integrated structure, thereby improving the strength of the entire connector.

[0025] (2) By setting a second soft rubber layer, the first gap can be sealed to prevent moisture or dust from entering the second through hole, thereby further improving the reliability of the connector. In addition, it can prevent friction and wear between the cable surface and the shell during the dragging or pulling of the charging gun using the connector, thus protecting the cable and extending its service life.

[0026] (3) By setting an exhaust channel, when the colloid is injected into the second through hole, the air in the second through hole can be discharged from the exhaust channel, ensuring that the colloid can reliably fill the entire second through hole, or can discharge the air at the end where the cable terminal is located, ensuring that there are no air bubbles between the cured colloid and the end where the cable terminal is located, thereby improving the sealing effect of the colloid on the end where the cable terminal is located.

[0027] (4) By installing clamp structures on the cable, the overall mechanical strength and tensile performance of the cable can be effectively improved. The clamp is located at the end of the cable where the terminals are located. When the cable is subjected to external forces, it can transmit the external forces (such as tension, torque, etc.) from the cable to the outer casing or equipment body, thereby preventing these external forces from acting directly on the internal terminals and protecting the internal terminals from being pulled. In addition, while enhancing mechanical stability, the clamp further improves the overall sealing performance and protection level of the connector, making it suitable for harsh environments such as humidity, dust, and corrosive gases. Attached Figure Description

[0028] Figure 1 This is a structural schematic diagram of an integrated connector according to the present invention.

[0029] Figure 2 yes Figure 1 The diagram shows a structural schematic of the integrated connector from another perspective.

[0030] Figure 3 yes Figure 2 The cross-sectional view of the integrated connector shown is along the cutting line AA.

[0031] Figure 4This is a schematic diagram of an integrated connector of this utility model, omitting the adhesive component.

[0032] Figure 5 This is a schematic diagram of the outer shell in a preferred embodiment of the present invention.

[0033] Figure 6 This is a schematic diagram of the end cap structure in a preferred embodiment of the present invention.

[0034] Figure 7 yes Figure 6 The diagram shows a structural schematic of the end cap from another perspective.

[0035] Figure 8 yes Figure 7 The sectional view of the end cap shown is taken along section line BB.

[0036] In the picture,

[0037] 10. End cap; 11. First through hole; 12. First insertion part; 13. Positioning protrusion; 14. First limiting end face; 15. First connecting part; 16. First connecting hole;

[0038] 20. Outer shell; 21. Second through hole; 22. First gap; 23. Second insertion part; 24. Positioning recess; 25. Second limiting end face; 26. Second connecting part; 27. Second connecting hole;

[0039] 30. Cables; 31. Terminal blocks; 32. Clamps;

[0040] 40. Colloid; 41. First soft adhesive layer; 42. Second soft adhesive layer;

[0041] 50. Exhaust passage; 51. Second gap; 52. Third gap; 53. Fourth gap. Detailed Implementation

[0042] The following are specific embodiments of the present invention, which are described in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments.

[0043] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0044] like Figures 1 to 8 As shown, the present invention provides an integrated connector comprising:

[0045] The housing has an end cap 10 and an outer shell 20 arranged along the axial direction of the housing, and the end cap 10 and the outer shell 20 are connected by fasteners. The end cap 10 is provided with a plurality of first through holes 11, and the first through holes 11 penetrate through both ends of the end cap 10 along the axial direction; the outer shell 20 is provided with a second through hole 21, and the second through hole 21 penetrates through both ends of the end cap 10 along the axial direction.

[0046] The cable 30 has multiple terminals 31 at one end, and the terminals 31 are inserted into the corresponding first through holes 11 through the second through hole 21. Some of the terminals 31 are located in the corresponding first through hole 11, and other terminals 31 extend out of the corresponding first through hole 11. The diameter of the other end of the cable 30 is smaller than the diameter of the second through hole 21, and a first gap 22 is formed between them.

[0047] The colloid 40 is injected into the second through hole 21 along the first gap 22, partially filling or completely filling the second through hole 21. After the colloid 40 is cured, a first soft adhesive layer 41 is formed on the outer side of the end of the cable 30 where the terminal 31 is located.

[0048] The present invention provides an integrated connector in which the second through hole 21 is partially filled or filled with glue to form a protective layer on the outside of the end of the cable 30 where the terminal 31 is provided, thereby improving the waterproof and dustproof performance of the entire connector and forming a similar integrated structure, thereby improving the strength of the entire connector.

[0049] Preferably, the colloid 40 located at the first gap 22 extends a predetermined distance away from the terminal 31. After the colloid 40 is cured, a second soft colloid layer 42 can be formed on the surface of the cable 30 at the first gap 22. When the colloid 40 partially fills the second through hole 21, the first soft colloid layer 41 and the second soft colloid layer 42 are separately disposed; when the colloid 40 fills the second through hole 21, the first soft colloid layer 41 and the second soft colloid layer 42 are integrally disposed.

[0050] In this embodiment, by providing a second soft adhesive layer 42, the first gap 22 can be sealed to prevent moisture or dust from entering the second through hole 21, thereby further improving the reliability of the connector. In addition, it prevents friction and wear between the surface of the cable 30 and the outer shell 20 during the dragging or pulling of the charging gun using the connector, thus protecting the cable 30 and extending its service life.

[0051] Preferably, the end cap 10 and the outer shell 20 are connected by a plug-in joint, and an exhaust channel 50 is provided at the plug-in position of the end cap 10 and the outer shell 20. One end of the exhaust channel 50 is connected to the second through hole 21, and the other end of the exhaust channel 50 is connected to the external space where the connector is located.

[0052] In this embodiment, by providing an exhaust channel 50, when the colloid 40 is injected into the second through hole 21, the air in the second through hole 21 can be discharged through the exhaust channel 50, ensuring that the colloid 40 can reliably fill the entire second through hole 21, or can discharge the air at the end where the terminal 31 on the cable 30 is located, ensuring that there are no air bubbles between the cured colloid 40 and the end where the terminal 31 on the cable 30 is located, thereby improving the sealing effect of the colloid 40 on the end where the terminal 31 on the cable 30 is located.

[0053] Furthermore, the end cap 10 is provided with a first insertion part 12, and the outer shell 20 is provided with a corresponding second insertion part 23. When the first insertion part 12 and the second insertion part 23 are inserted into each other, a second gap 51 is formed between the first end of the first insertion part 12 and the first end of the second insertion part 23, a third gap 52 is formed between the outer surface of the first insertion part 12 and the inner surface of the second insertion part 23, and a fourth gap 53 is formed between the second end of the first insertion part 12 and the second end of the second insertion part 23. The second gap 51, the third gap 52, the fourth gap 53 and the second through hole 21 are connected in pairs to form an exhaust channel 50.

[0054] It is further pointed out that the cross-section of the structure formed by the second gap 51, the third gap 52 and the fourth gap 53 is arranged in a Z-shape.

[0055] It is worth mentioning that among the second gap 51, the third gap 52, and the fourth gap 53, the third gap 52 has the smallest size, while the fourth gap 53 has the largest size.

[0056] Furthermore, the first insertion part 12 is an annular protrusion, the second insertion part 23 is an annular groove, and the first end of the second insertion part 23 is the end face where the opening of the annular groove is located, and the second end is the end face where the bottom of the annular groove is located. The first end of the first insertion part 12 is the end face of the annular protrusion that is opposite to the end face where the opening of the annular groove is located, and the second end is the end face of the annular protrusion that is opposite to the end face where the bottom of the annular groove is located.

[0057] Preferably, a positioning structure is provided between the end cap 10 and the outer shell 20, and the positioning structure includes a positioning protrusion 13 provided on the end cap 10 and a positioning recess 24 correspondingly provided on the outer shell 20, wherein the circumferential degree of freedom between the end cap 10 and the outer shell 20 is limited by the convex-concave fit between the positioning protrusion 13 and the positioning recess 24.

[0058] It is worth mentioning that the positions of the positioning protrusion 13 and the positioning recess 24 can be interchanged. That is, the positioning protrusion 13 is set on the outer shell 20 and the positioning recess 24 is set on the end cover 10. In this case, the second insertion part 23 is inserted into the first insertion part 12.

[0059] More preferably, the positioning protrusion 13 is disposed on the first insertion part 12, and the positioning recess 24 is disposed on the second insertion part 23.

[0060] Preferably, a limiting structure is provided between the end cap 10 and the outer shell 20, and the limiting structure includes a first limiting end face 14 provided on the end cap 10 and a second limiting end face 25 provided on the outer shell 20, wherein the distance between the first limiting end face 14 and the end face where the second end is located on the first plug-in portion 12 is less than the distance between the second limiting end face 25 and the end face where the second end is located on the second plug-in portion 23.

[0061] In this embodiment, by setting a first limiting end face 14 and a second limiting end face 25, when the end cover 10 and the outer shell 20 form a plug-in fit, the first limiting end face 14 and the second limiting end face 25 abut against each other. Since the distance between the first limiting end face 14 and the end face where the second end is located on the first plug-in part 12 is less than the distance between the second limiting end face 25 and the end face where the second end is located on the second plug-in part 23, a fourth gap 53 is formed between the end face where the second end is located on the first plug-in part 12 and the end face where the second end is located on the second plug-in part 23.

[0062] Preferably, the end cap 10 is provided with a first connecting portion 15 and a first connecting hole 16, and a first limiting end face 14 is provided on the end face of the first connecting portion 15; the outer shell 20 is provided with a second connecting portion 26 and a second connecting hole 27, and a second limiting end face 25 is provided on the end face of the second connecting portion 26.

[0063] It is worth mentioning that the first connecting part 15 is a recessed platform, and the first connecting hole 16 and the first through hole 11 are provided on the first connecting part 15. The second connecting part 26 includes multiple connecting posts provided on the inner wall of the second through hole 21. Each connecting post is provided with a second connecting hole 27. The end face of each connecting post facing the second insertion part 23 is spliced ​​to form a second limiting end face 25.

[0064] Preferably, a clamp 32 is nested at the end of the cable 30 where the terminal block 31 is located.

[0065] In this embodiment, by providing a clamp 32 structure on the cable 30, the overall mechanical strength and tensile strength of the cable can be effectively improved. The clamp 32 is located at the end of the cable 30 where the terminals are located. When the cable 30 is subjected to external forces, it can transmit the external forces (such as tension, torque, etc.) from the cable 30 to the housing 20 or the device body, thereby preventing these external forces from acting directly on the internal terminals 31, thus protecting the internal terminals 31 from being pulled. In addition, while enhancing mechanical stability, the clamp 32 further improves the overall sealing performance and protection level of the connector, making it suitable for harsh environments such as humidity, dust, and corrosive gases.

[0066] It should be noted that in this utility model, the use of terms such as "first," "second," and "a" is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of those features. In the description of this utility model, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly defined. The terms "connection," "fixed," etc., should be interpreted broadly. For example, "fixed" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two elements or the interaction between two elements, unless otherwise explicitly defined. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0067] Furthermore, the technical solutions of the various embodiments of this utility model can be combined with each other, but only if they are based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0068] The specific embodiments described herein are merely illustrative examples illustrating the spirit of this utility model. Those skilled in the art to which this utility model pertains may make various modifications or additions to the described specific embodiments or use similar methods to substitute them, without departing from the spirit of this utility model or exceeding the scope defined by the appended claims.

Claims

1. An integrated connector, characterized in that, include: The shell has a plurality of first through holes at one end along the axial direction of the shell, and a second through hole at the other end, wherein the first through holes and the second through holes are connected. The cable has multiple terminals at one end, and these terminals are respectively inserted into the corresponding first through holes through the second through hole. The diameter of the other end of the cable is smaller than the diameter of the second through hole, and a first gap is formed between them. The colloid is injected into the second through hole along the first gap, partially or completely filling the second through hole. After the colloid cures, a first soft adhesive layer is formed on the outer side of the end of the cable where the wiring terminal is located.

2. The integrated connector according to claim 1, characterized in that, The adhesive located at the first gap extends a predetermined distance away from the terminal block. After the adhesive cures, a second soft adhesive layer can be formed on the surface of the cable at the first gap. When the adhesive partially fills the second through hole, the first soft adhesive layer and the second soft adhesive layer are set separately; when the adhesive fills the second through hole, the first soft adhesive layer and the second soft adhesive layer are set together.

3. The integrated connector according to claim 1, characterized in that, An end cap and a housing are provided along the axial direction of the housing, and the end cap and the housing are connected by a plug-in fit. An exhaust channel is provided at the plug-in position of the end cap and the housing. One end of the exhaust channel is connected to the second through hole, and the other end of the exhaust channel is connected to the external space where the connector is located.

4. The integrated connector according to claim 3, characterized in that, The end cap is provided with a first insertion part, and the outer shell is provided with a corresponding second insertion part. When the first insertion part and the second insertion part are inserted into each other, a second gap is formed between the first end of the first insertion part and the first end of the second insertion part, a third gap is formed between the outer surface of the first insertion part and the inner surface of the second insertion part, and a fourth gap is formed between the second end of the first insertion part and the second end of the second insertion part. The second gap, the third gap, the fourth gap and the second through hole are connected to each other to form an exhaust channel.

5. The integrated connector according to claim 4, characterized in that, The first insertion part is an annular protrusion, and the second insertion part is an annular groove. The first end of the second insertion part is the end face where the opening of the annular groove is located, and the second end is the end face where the bottom of the annular groove is located. The first end of the first insertion part is the end face on the annular protrusion that is opposite to the end face where the opening of the annular groove is located, and the second end is the end face on the annular protrusion that is opposite to the end face where the bottom of the annular groove is located.

6. The integrated connector according to claim 4, characterized in that, A limiting structure is provided between the end cap and the outer shell, and the limiting structure includes a first limiting end face provided on the end cap and a second limiting end face provided on the outer shell, wherein the distance between the first limiting end face and the end face where the second end of the first plug is located is less than the distance between the second limiting end face and the end face where the second end of the second plug is located.

7. The integrated connector according to claim 6, characterized in that, The end cap is provided with a first connecting part and a first connecting hole, and a first limiting end face is provided on the end face of the first connecting part; the outer shell is provided with a second connecting part and a second connecting hole, and a second limiting end face is provided on the end face of the second connecting part.

8. The integrated connector according to claim 7, characterized in that, The first connecting part is a recessed platform, and the first connecting hole and the first through hole are provided on the first connecting part. The second connecting part includes multiple connecting posts provided on the inner wall of the second through hole. Each connecting post is provided with a second connecting hole. The end face of each connecting post facing the second insertion part is spliced ​​to form a second limiting end face.

9. The integrated connector according to any one of claims 1 to 8, characterized in that, A clamp is nested at the end of the cable where the terminal is located.

10. A charging gun, characterized in that, Includes the integrated connector as described in any one of claims 1 to 9.

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