CN220291150U - Gun head assembly and charging gun - Google Patents

Abstract

The utility model relates to the technical field of charging gun assembly, in particular to a gun head assembly and a charging gun. The gun head assembly comprises a shell, a reinforcement and an electric terminal, wherein the shell is provided with an inserting cavity and a mounting cavity communicated with the inserting cavity, and the reinforcement is arranged on the inner wall of the mounting cavity and is adjacent to the inserting cavity. The reinforcement is the metalwork, and the reinforcement is equipped with the reinforcement hole that communicates installation cavity and grafting chamber, and in the installation cavity was located to the one end of electric terminal wiring, the other end passed the reinforcement hole and stretches into the grafting intracavity for the reinforcement cover is located on the outer wall of electric terminal. According to the scheme, the reinforcement made of metal materials is arranged in the shell to replace a part of the shell part in contact with the electric terminal, so that the local strength of the electric terminal and the shell assembly is enhanced, the risk of inclination of the electric terminal is reduced, the plugging force is reduced, and the technical problem that the plugging force of the electric terminal is large due to the inclination of the electric terminal when the existing charging gun shell is assembled with the electric terminal is effectively solved.

Description

Gun head assembly and charging gun

Technical Field

The utility model relates to the technical field of charging gun assembly, in particular to a gun head assembly and a charging gun.

Background

In the rifle that charges, charging rifle head DC connects electric terminal afterbody and cable crimping department, because contact reason, this is here easy to scald when the overcurrent, in order to avoid the temperature rise too high, often needs to increase soldering tin, makes electric terminal and cable area of contact bigger to reach the reduction heat and produce. However, the soldering process is easy to lead to harder joint of the crimping tail part, and the structure of the charging gun head shell has a certain inclination angle, so that the DC electric terminal belt cable is required to be bent and installed into the gun body, and the DC electric terminal belt cable is difficult to be inserted with great force in the installation process. And finally, the DC power connection terminal is inclined in the assembly process, so that the plugging force of the power connection terminal to the plug is affected.

Disclosure of Invention

The utility model mainly aims to provide a gun head assembly, which aims to solve the technical problem that the plugging force of a power connection terminal to the plugging is large due to the fact that the power connection terminal is inclined when the existing charging gun shell is assembled with the power connection terminal.

In order to achieve the above object, the present utility model provides a gun head assembly, comprising:

the shell is provided with an inserting cavity and a mounting cavity communicated with the inserting cavity;

the reinforcing member is arranged on the inner wall of the mounting cavity and adjacent to the plug-in cavity, is a metal piece and is provided with a reinforcing hole communicated with the mounting cavity and the plug-in cavity; a kind of electronic device with high-pressure air-conditioning system

The electric terminal is connected, the one end of electric terminal is located in the installation cavity, the other end passes consolidate the hole and stretch into in the grafting intracavity, make the reinforcement cover is located on the outer wall of electric terminal.

In an embodiment of the present utility model, the reinforcement is annular, the reinforcement hole is formed on the inner side of the ring of the reinforcement, and the outer side of the ring of the reinforcement is embedded in the cavity wall of the installation cavity;

and/or the reinforcement and the shell form an integrated structure by adopting an in-mold injection molding process.

In an embodiment of the present utility model, a mounting notch is concavely formed on a wall surface of the mounting cavity, an outer ring side of the reinforcement member is disposed at the mounting notch, and an inner ring side of the reinforcement member protrudes from the wall surface of the mounting cavity.

In an embodiment of the utility model, a waterproof barrier is disposed on an outer peripheral wall of the electrical connection terminal, and the reinforcement member is located at a side of the waterproof barrier facing the plugging cavity and abuts against the waterproof barrier.

In one embodiment of the present utility model, a first limiting portion is disposed on the outer side of the ring of the reinforcement member;

the cavity wall of the mounting cavity is provided with a second limiting part matched with the first limiting part.

In an embodiment of the utility model, a plurality of first limiting parts are arranged on the peripheral wall of the reinforcement at intervals, and a plurality of second limiting parts are correspondingly arranged on the cavity wall of the mounting cavity;

and/or one of the first limiting part and the second limiting part is a protrusion, and the other is a groove, and the protrusion is in clamping fit with the groove.

In one embodiment of the utility model, the electrical terminals are in close contact with or interference fit with the stiffener.

In an embodiment of the utility model, a waterproof groove is arranged on the peripheral wall of the electric connection terminal in a surrounding manner;

the gun head assembly further comprises a waterproof ring, and the waterproof ring is arranged in the waterproof groove and is in sealing abutting connection with the cavity wall of the installation cavity.

In an embodiment of the utility model, the gun head assembly further includes a support frame, the support frame is disposed in the mounting cavity, and at least one first through hole for the power connection terminal to pass through is formed in the support frame;

the outer peripheral wall of the electric terminal is provided with a limiting table, the electric terminal penetrates through the first through hole, the limiting table is located between the supporting frame and the reinforcing member, and the supporting frame is in butt joint with the limiting table.

The present utility model also provides a charging gun comprising a gun head assembly as defined in any one of the preceding claims.

The gun head assembly comprises a shell, a reinforcement and an electric terminal, wherein the shell is provided with a plug-in cavity and a mounting cavity communicated with the plug-in cavity, and the reinforcement is arranged on the inner wall of the mounting cavity and is adjacent to the plug-in cavity. The reinforcement is the metalwork, and the reinforcement is equipped with the reinforcement hole that communicates installation cavity and grafting chamber, and in the installation cavity was located to the one end of electric terminal wiring, the other end passed the reinforcement hole and stretches into the grafting intracavity for the reinforcement cover is located on the outer wall of electric terminal. According to the scheme, the reinforcement made of metal materials is arranged in the shell to replace a part of the shell part in contact with the electric terminal, so that the local strength of the electric terminal and the shell assembly is enhanced, the risk of inclination of the electric terminal is reduced, the plugging force is reduced, and the technical problem that the plugging force of the electric terminal is large due to the inclination of the electric terminal when the existing charging gun shell is assembled with the electric terminal is effectively solved.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, and it is obvious that the drawings in the following description are only some embodiments of the present utility model, and other drawings may be obtained according to the structures shown in these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic perspective view of an embodiment of a gun head assembly according to the present utility model;

FIG. 2 is a schematic view of an exploded perspective view of an embodiment of a gun head assembly according to the present utility model;

FIG. 3 is a schematic view of a structure of a waterproof ring and a power terminal according to another embodiment of the gun head assembly of the present utility model;

FIG. 4 is a schematic cross-sectional view of an embodiment of a gun head assembly according to the present utility model;

fig. 5 is an enlarged partial schematic view at Q in fig. 4.

Reference numerals illustrate:

reference numerals	Name of the name	Reference numerals	Name of the name	Reference numerals	Name of the name
						100	Gun head assembly	30	Reinforcement	50	Electric terminal
10	Shell body	30A	Reinforcing hole	51	Main body
						10A	Plug-in cavity	30B	First limit part	52	Waterproof barrier strip
10B	Mounting cavity	31	Inside of the ring	53	Limiting table
						101B	Cavity wall	32	Outside of the ring	50A	Waterproof groove
10C	Second limit part	80	Supporting frame	60	Signal terminal
						10D	Mounting notch	80A	First perforation	70	Waterproof ring
10E	Fixing hole	80B	Second perforation	90	Fastening piece
						11	Middle spacing ring

The achievement of the objects, functional features and advantages of the present utility model will be further described with reference to the accompanying drawings, in conjunction with the embodiments.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

It should be noted that all directional indicators (such as up, down, left, right, front, and rear … …) in the embodiments of the present utility model are merely used to explain the relative positional relationship, movement, etc. between the components in a particular posture (as shown in the drawings), and if the particular posture is changed, the directional indicator is changed accordingly.

In the present utility model, unless specifically stated and limited otherwise, the terms "connected," "affixed," and the like are to be construed broadly, and for example, "affixed" may be a fixed connection, a removable connection, or an integral body; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

Furthermore, descriptions such as those referred to as "first," "second," and the like, are provided for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implying an order of magnitude of the indicated technical features in the present disclosure. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In addition, the meaning of "and/or" as it appears throughout is meant to include three side-by-side schemes, for example, "a and/or B", including a scheme, or B scheme, or a scheme that is satisfied by both a and B. In addition, the technical solutions of the embodiments may be combined with each other, but it is necessary to base that the technical solutions can be realized by those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should be considered to be absent and not within the scope of protection claimed in the present utility model.

In the rifle that charges, charging rifle head DC connects electric terminal afterbody and cable crimping department, because contact reason, this is here easy to scald when the overcurrent, in order to avoid the temperature rise too high, often needs to increase soldering tin, makes electric terminal and cable area of contact bigger to reach the reduction heat and produce. However, it can be understood that the shell of the charging gun is a plastic part or a rubber part, the welding process easily causes that the joint of the crimping tail part is harder, and the structure of the shell of the charging gun head has a certain inclination angle, so that the DC power connection terminal belt cable is required to be bent and installed into the gun body, and the DC power connection terminal belt cable is difficult to be inserted with great force in the installation process. And finally, the DC power connection terminal is inclined in the assembly process, so that the plugging force of the power connection terminal to the plug is affected.

The present utility model proposes a gun head assembly 100.

Referring to fig. 1 to 5, fig. 1 is a schematic perspective view of a gun head assembly 100 according to an embodiment of the present utility model; FIG. 2 is a schematic perspective exploded view of an embodiment of a gun head assembly 100 according to the present utility model; fig. 3 is a schematic structural view of the electrical terminal 50 and the waterproof ring 70 of another embodiment of the gun head assembly 100 according to the present utility model; FIG. 4 is a schematic cross-sectional view of an embodiment of a gun head assembly 100 according to the present utility model; fig. 5 is an enlarged partial schematic view at Q in fig. 4.

In the embodiment of the present utility model, the gun head assembly 100 includes a housing 10, a reinforcement member 30 and an electrical terminal 50; as shown in fig. 1, 2 and 4, the housing 10 is provided with a socket 10A and a mounting cavity 10B communicating with the socket 10A, and the reinforcement member 30 is provided on the inner wall of the mounting cavity 10B and is provided adjacent to the socket 10A. The reinforcement 30 is a metal piece, and the reinforcement 30 is provided with a reinforcement hole 30A communicated with the installation cavity 10B and the plug cavity 10A; one end of the electric terminal 50 is arranged in the mounting cavity 10B, and the other end passes through the reinforcing hole 30A and stretches into the inserting cavity 10A, so that the reinforcing member 30 is sleeved on the outer wall of the electric terminal 50.

The gun head assembly 100 according to the technical scheme of the utility model comprises a shell 10, a reinforcement member 30 and an electric terminal 50, wherein the shell 10 is provided with a plug cavity 10A and a mounting cavity 10B communicated with the plug cavity 10A, and the reinforcement member 30 is arranged on the inner wall of the mounting cavity 10B and is adjacent to the plug cavity 10A. The reinforcement 30 is a metal piece, and the reinforcement 30 is provided with a reinforcement hole 30A communicated with the installation cavity 10B and the plug cavity 10A, one end of the connection wire of the electric terminal 50 is arranged in the installation cavity 10B, and the other end penetrates through the reinforcement hole 30A and stretches into the plug cavity 10A, so that the reinforcement 30 is sleeved on the outer wall of the electric terminal 50. According to the scheme, the reinforcement 30 made of metal is arranged in the shell 10 to replace a part of the shell 10 which is in contact with the electric terminal 50, and the metal can strengthen the assembly part strength of the electric terminal 50 and the shell 10, so that the risk of inclination of the electric terminal 50 is reduced, the plugging force is reduced, and the technical problem that the plugging force of the electric terminal 50 to the plugging is large due to the inclination of the electric terminal 50 in the assembly of the existing charging gun shell 10 and the electric terminal 50 is effectively solved.

Further, a through cavity is formed in the casing 10 along the length direction of the casing, a middle partition ring 11 is arranged in the middle of the through cavity to partition the through cavity into an inserting cavity 10A and a mounting cavity 10B, a passageway for communicating the inserting cavity 10A and the mounting cavity 10B is formed in the middle partition ring 11, one end of a connecting cable of the electric terminal 50 is arranged in the mounting cavity 10B, and the other end of the connecting cable penetrates through the passageway and then stretches into the inserting cavity 10A. At the passage, the electrical terminal 50 is in sealing contact with the septum ring 11, and the reinforcement member 30 is disposed on one side of the passage adjacent to the socket 10A, so as to reinforce the extension direction of the electrical terminal 50 in the socket 10A, and prevent the electrical terminal from tilting.

Further, the power connection terminal 50 is assembled with the wire to extrude the plastic housing 10, and the plastic is made of nylon material, so that the plastic is locally stressed too much, the front end of the plastic housing 10 of the gun head is extruded and deformed by the terminal, and the yield strength of the PA material is exceeded, so that the terminal is warped. The metal reinforcement 30 can adopt SUS304, and SUS stainless steel's material intensity is greater than nylon material, and the terminal is difficult to incline for the terminal can be inserted smoothly, reduces to inserting the power.

Further, the gun head assembly 100 further includes a signal terminal, the signal terminal does not need to run strong electricity, no separate soldering operation is needed, the assembly stability of the signal terminal and the housing 10 of the plastic part is high, and no reinforcement ring can be arranged at the position where the signal terminal passes through. Under the necessary condition, the reinforcing rings can be correspondingly arranged, so that the reliability of the whole assembly is improved.

Further, the housing 10 shown in fig. 1 to 2 and fig. 4 is a front housing of the gun head assembly 100, the gun head assembly 100 further includes a rear housing (not shown), a fixing hole 10E is provided around the front housing, and the gun head assembly 100 further includes a plurality of fasteners 90 for detachably assembling the front housing and the rear housing through the fixing hole 10E.

Referring to fig. 5 in combination, in one embodiment of the present utility model, the reinforcement member 30 is annular, the inner side 31 of the reinforcement member 30 defines a reinforcement hole 30A, and the outer side 32 of the reinforcement member 30 is embedded in the wall of the installation cavity 10B; and/or the reinforcement member 30 is formed as a unitary structure with the housing 10 using an in-mold injection molding process.

In one embodiment of the utility model, the electrical terminals 50 are in close contact or interference fit with the stiffener 30.

In this embodiment, the reinforcement member 30 is a metal ring, the hole in the center of the ring is a reinforcement hole 30A, the outer ring side 32 of the metal ring is embedded in the housing 10, and the inner ring side 31 contacts the terminal. The reinforcement member 30 also has a certain width, and is embodied on the electric terminal 50, and can contact with the peripheral wall of a certain length along the axial direction of the electric terminal 50, the annular reinforcement member 30 comprehensively limits the circumference of the electric terminal 50 extending perpendicular to the axial direction of the electric terminal, and the reinforcement member 30 is tightly contacted with the terminal or in interference fit, so that the electric terminal 50 cannot incline relatively, the inserting force of the electric terminal 50 is reduced, the abrasion is reduced, and the service life of the electric terminal 50 is prolonged.

In an embodiment, in order to achieve the reliability of limiting the reinforcement member 30 to the electrical terminal 50, when the housing 10 of the charging gun is manufactured, the reinforcement member 30 made of metal and the housing 10 are formed into an integral structure by adopting an in-mold injection molding process, and the reinforcement member 30 after injection molding is integrally arranged with the housing 10, so that the stability is good and the assembly reliability with the electrical terminal 50 and the signal terminal is high.

Referring to fig. 5 in combination, in an embodiment of the present utility model, a mounting notch 10D is concavely formed on a wall surface of the mounting cavity 10B, a ring outer side 32 of the reinforcement member 30 is disposed at the mounting notch 10D, and a ring inner side 31 of the reinforcement member 30 protrudes from the wall surface of the mounting cavity 10B.

In this embodiment, the mounting notch 10D is disposed on the wall surface of the mounting cavity 10B and is distributed as an annular notch, and the reinforcement 30 made of metal is embedded in the mounting notch 10D, so as to improve the connection stability of the reinforcement 30 and the housing 10. The inner side 31 surface of the ring of the reinforcement member 30 protrudes from the cavity wall surface of the mounting cavity 10B, so that the inner side 31 surface of the ring of the reinforcement member 30 is tightly matched with the outer peripheral wall of the electric terminal 50, and the reinforcement effect is improved.

Further, the electrical terminal 50 includes a main body 51, a waterproof barrier 52 and a stopper 53 provided on the outer periphery of the main body 51. The waterproof barrier 52 cooperates with the cavity wall of the mounting cavity 10B with the spacing platform 53 to promote the whole and casing 10 of electric terminal 50 and fully cooperate and spacing effect, when the intra-annular side 31 of stiffening ring and the periphery wall close-fitting of electric terminal 50, the side that the stiffening ring distributes along terminal axial direction carries out the butt spacing with waterproof barrier 52, in order to restrict the relative displacement of electric terminal 50 along its axial direction, promotes terminal assembly stability.

It can be understood that the installation notch 10D is formed on the middle spacer 11 at the corridor, and the installation notch 10D is formed adjacent to the plugging cavity 10A or is directly communicated with the plugging cavity 10A, so that the peripheral wall of the electric terminal 50 extending into the plugging cavity 10A from the corridor is circumferentially limited by the reinforcement 30, the deformation of the casing 10 during installation of the electric terminal 50 is reduced, the inclination of the terminal is avoided, and the opposite plugging force is reduced.

In one embodiment of the present utility model, the ring outer side 32 of the reinforcement member 30 is provided with a first stopper portion 30B; the wall of the mounting cavity 10B is provided with a second limiting portion 10C which is matched with the first limiting portion 30B.

In this embodiment, the first limiting portion 30B and the second limiting portion 10C perform limiting fit along a direction perpendicular to the extending direction of the electrical terminal 50, so as to improve the connection stability of the reinforcement member 30 and the housing 10 along the axial extending direction of the electrical terminal 50.

In an embodiment of the present utility model, the outer peripheral wall of the reinforcement member 30 is provided with a plurality of first limiting portions 30B at intervals, and the cavity wall of the installation cavity 10B is correspondingly provided with a plurality of second limiting portions 10C; and/or, one of the first limiting part 30B and the second limiting part 10C is a protrusion, the other is a groove, and the protrusion is matched with the groove in a clamping way.

In this embodiment, two first limiting portions 30B are symmetrically disposed in the circumferential direction of the reinforcement member 30, two second limiting portions 10C are disposed on the wall of the mounting cavity 10B, the two first limiting portions 30B are respectively engaged with the two second limiting portions 10C, wherein the number of the first limiting portions 30B corresponds to the number of the second limiting portions 10C, and the number of the first limiting portions 30B may be more than two to improve the connection reliability of the reinforcement member 30 and the housing 10.

In another embodiment, one of the first limiting portion 30B and the second limiting portion 10C is a protrusion, and the other is a groove, and the protrusion and the groove are engaged with each other. Preferably, the outer peripheral wall of the reinforcement member 30 is provided with protrusions, so that the plastic housing 10 can sufficiently grip the annular outer side 32 and protrusions of the reinforcement member 30 made of metal material during integral injection molding, thereby improving the process stability and the use reliability of the reinforcement member 30 and the housing 10.

Referring to fig. 2 to 4, in an embodiment of the present utility model, the gun head assembly 100 further includes a support frame 80, the support frame 80 is disposed in the mounting cavity 10B, and at least one first through hole 80A through which the power connection terminal 50 passes is formed in the support frame 80; the outer peripheral wall of the electric terminal 50 is provided with a limiting table 53, the electric terminal 50 is arranged in the first through hole 80A in a penetrating mode, the limiting table 53 is located between the supporting frame 80 and the reinforcement 30, and the supporting frame 80 is abutted with the limiting table 53.

In this embodiment, after the power connection terminal 50 of the gun head assembly 100 extends into the housing 10, the power connection terminal is relatively fixed by a supporting frame 80, and the supporting frame 80 is detachably assembled with the housing 10. The support 80 is provided with at least one first through hole 80A for the power connection terminal 50 to pass through, and at least one second through hole 80B for the signal terminal to pass through. In one embodiment, three first through holes 80A and two second through holes 80B are provided, wherein the reinforcement member 30 is disposed in the first through hole 80A corresponding to each electrical connection terminal 50. After the electric terminal 50 is assembled with the support frame 80, the whole electric terminal is assembled with the shell 10, at this time, a limiting table 53 on the peripheral wall of the electric terminal 50 is positioned between the support frame 80 and the cavity wall of the installation cavity 10B, and displacement limiting is performed on the electric terminal 50 in the axial direction, so that the relative stability of the electric terminal 50 and the shell 10 in assembly is improved.

Further, one of two sides of the limiting table 53, which are distributed along the axial direction of the electrical terminal 50, abuts against the supporting frame 80, and the other abuts against the middle spacer 11 of the housing 10, and is located on the side of the middle spacer 11 facing the mounting cavity 10B, so as to limit the movement of the electrical terminal 50 along the axial direction thereof.

Referring to fig. 3, in an embodiment of the present utility model, a waterproof barrier 52 is disposed on an outer peripheral wall of the electrical terminal 50, and the reinforcement member 30 is located on a side of the waterproof barrier 52 facing the socket 10A and abuts against the waterproof barrier 52.

In this embodiment, the waterproof barrier 52 is protruding on the outer peripheral wall of the electrical terminal 50, the waterproof barrier 52 abuts against the reinforcement member 30 to limit the relative movement of the electrical terminal 50 along the axial direction and toward the plugging cavity 10A direction and the housing 10, and the support frame 80 and the positioning table 53 protruding on the outer peripheral wall of the electrical terminal 50 limit the relative movement of the electrical terminal 50 along the axial direction and toward the mounting cavity 10B direction and the housing 10, so as to improve the stability of the electrical terminal 50 along the axial direction.

Referring to fig. 3, in an embodiment of the present utility model, a waterproof groove 50A is formed around the circumference of the power receiving terminal 50; the gun head assembly 100 further comprises a waterproof ring 70, wherein the waterproof ring 70 is arranged in the waterproof groove 50A and is in sealing abutting connection with the cavity wall of the mounting cavity 10B.

In this embodiment, the waterproof groove 50A may be concavely disposed on the waterproof barrier 52, or may be formed by enclosing two waterproof barriers 52 at intervals, where one side of the waterproof barrier 52 away from the periphery of the electrical connection terminal 50 is abutted against the wall of the installation cavity 10B or has a slight gap, and the gun head assembly 100 includes a waterproof ring 70 disposed in the waterproof groove 50A to waterproof the gun head assembly 100, so that the electrical connection terminal 50 is located at two ends of the waterproof barrier 52 and cannot circulate liquid with the wall of the installation cavity 10B through the electrical connection terminal 50, thereby improving the waterproof effect.

Further, the charging gun head is provided with two waterproof rings 70, the outer peripheral wall of the power connection terminal 50 is correspondingly provided with two waterproof grooves 50A, the two waterproof rings 70 and the two waterproof grooves 50A are arranged to conduct double waterproof, and the waterproof grade of the power connection terminal 50 is improved.

The present utility model also provides a charging gun (not shown), which includes a cable (not shown) and a gun head assembly 100, and the specific structure of the gun head assembly 100 refers to the above embodiment, and since the charging gun adopts all the technical solutions of all the embodiments, at least has all the beneficial effects brought by the technical solutions of the embodiments, and will not be described in detail herein.

In this embodiment, the cable and the electric terminal 50 are crimped and assembled at the end far away from the plugging cavity 10A, in order to reduce overheat of the contact position between the terminal and the cable, the crimping part is soldered, the electric terminal 50 is bent and installed in the housing 10 of the gun head assembly 100 after soldering, the reinforcement 30 is arranged to avoid the inclination of the electric terminal 50, reduce poor contact between the electric terminal 50 and the charging socket, reduce the opposite plugging force between the charging gun and the empty seat or the charging socket, reduce abrasion of the electric terminal 50 during repeated opposite plugging, and prolong the service life of the terminal.

The foregoing description is only of the preferred embodiments of the present utility model and is not intended to limit the scope of the utility model, and all equivalent structural changes made by the description of the present utility model and the accompanying drawings or direct/indirect application in other related technical fields are included in the scope of the utility model.

Claims (10)

1. A gun head assembly, the gun head assembly comprising:

the shell is provided with an inserting cavity and a mounting cavity communicated with the inserting cavity;

the reinforcing member is arranged on the inner wall of the mounting cavity and adjacent to the plug-in cavity, is a metal piece and is provided with a reinforcing hole communicated with the mounting cavity and the plug-in cavity; a kind of electronic device with high-pressure air-conditioning system

The electric terminal is connected, the one end of electric terminal is located in the installation cavity, the other end passes consolidate the hole and stretch into in the grafting intracavity, make the reinforcement cover is located on the outer wall of electric terminal.

2. The gun head assembly as claimed in claim 1, wherein the reinforcement is annular, the reinforcement hole is formed on the inner side of the ring of the reinforcement, and the outer side of the ring of the reinforcement is embedded in the cavity wall of the mounting cavity;

and/or the reinforcement and the shell form an integrated structure by adopting an in-mold injection molding process.

3. The gun head assembly as claimed in claim 2, wherein the wall surface of the mounting cavity is concavely provided with a mounting notch, the ring outer side of the reinforcement member is arranged at the mounting notch, and the ring inner side of the reinforcement member protrudes out of the wall surface of the mounting cavity.

4. A gun head assembly as claimed in claim 3, wherein the outer peripheral wall of the electrical terminal is provided with a waterproof barrier, and the reinforcement member is located on a side of the waterproof barrier facing the socket and abuts against the waterproof barrier.

5. The gun head assembly as claimed in claim 2, wherein a first limit portion is provided on the outside of the ring of the reinforcement member;

the cavity wall of the installation cavity is provided with a second limiting part matched with the first limiting part.

6. The gun head assembly according to claim 5, wherein a plurality of first limiting parts are arranged on the peripheral wall of the reinforcement at intervals, and a plurality of second limiting parts are correspondingly arranged on the cavity wall of the mounting cavity;

and/or one of the first limiting part and the second limiting part is a protrusion, and the other is a groove, and the protrusion is in clamping fit with the groove.

7. The gun head assembly as claimed in any one of claims 1-6, wherein the electrical terminals are in close contact or interference fit with the reinforcement.

8. The gun head assembly as claimed in any one of claims 1-6, wherein a water-proof groove is provided around the circumference wall of the power receiving terminal;

the gun head assembly further comprises a waterproof ring, and the waterproof ring is arranged in the waterproof groove and is in sealing abutting connection with the cavity wall of the installation cavity.

9. The gun head assembly as claimed in any one of claims 1 to 6, further comprising a support frame disposed within the mounting cavity, the support frame having at least one first aperture therethrough for the electrical terminal;

the outer peripheral wall of the electric terminal is provided with a limiting table, the electric terminal penetrates through the first through hole, the limiting table is located between the supporting frame and the reinforcing member, and the supporting frame is in butt joint with the limiting table.

10. A charging gun comprising a gun head assembly according to any one of claims 1 to 9.