CN113783024A - Cylinder penetrating connector and manufacturing method thereof - Google Patents

Abstract

The invention discloses a cylinder penetrating connector and a manufacturing method thereof, and belongs to the technical field of connectors. The manufacturing method of the cylinder penetrating connector is used for manufacturing the cylinder penetrating connector. A cylinder penetrating connector comprises a seat body, a terminal, a first wire, a second wire and a sealing colloid, wherein the seat body is provided with a first end and a second end, and a through hole penetrating through the first end and the second end is formed in the seat body along the axial direction; the terminal is arranged in the through hole, one end of the terminal extends towards one end of the through hole, and the other end of the terminal extends towards the other end of the through hole; the connecting end of the first wire is electrically connected with one end of the terminal, and the connecting end of the first wire falls into the through hole; the connecting end of the second wire is electrically connected with the other end of the terminal, and the connecting end of the second wire falls into the through hole; and the sealing colloid is filled between the connecting end of the first wire rod and the inner wall of the through hole, between the terminal and the inner wall of the through hole and between the connecting end of the second wire rod and the inner wall of the through hole in a sealing manner. The invention has simple structure and can improve the sealing effect.

Description

Cylinder penetrating connector and manufacturing method thereof

Technical Field

The invention relates to the technical field of connectors, in particular to a cylinder penetrating connector and a manufacturing method thereof.

Background

The cylinder penetrating connector is mainly applied to parts such as an automobile engine or an automatic gearbox, penetrates through a cylinder body and is arranged to realize transmission of signals and current inside and outside the cylinder body, one end of the cylinder penetrating connector is located in a liquid (oil) environment for a long time, and current and electronic signals need to be transmitted stably for a long time. Therefore, the requirement for sealing between the terminal and the housing is high. The existing cylinder penetrating connector is complex in general structure, complex in product processing procedure and poor in sealing effect, and more components are matched.

Disclosure of Invention

The invention aims to provide a cylinder penetrating connector which is simple in structure and capable of improving the sealing effect.

Another object of the present invention is to provide a method for manufacturing a cylinder through connector, which has a simple process and can improve the sealing effect of the cylinder through connector.

In order to achieve the purpose, the invention adopts the following technical scheme:

a cylinder-through connector comprises a base body, a terminal, a first wire, a second wire and a sealing colloid,

the seat body is provided with a first end and a second end, and a through hole penetrating through the first end and the second end is formed in the seat body along the axial direction; the terminal is arranged in the through hole, one end of the terminal extends towards one end of the through hole, and the other end of the terminal extends towards the other end of the through hole; the connecting end of the first wire is electrically connected with one end of the terminal, and the connecting end of the first wire falls into the through hole; the connecting end of the second wire is in conductive connection with the other end of the terminal, and the connecting end of the second wire falls into the through hole; the sealing colloid is filled between the connecting end of the first wire rod and the inner wall of the through hole, between the terminal and the inner wall of the through hole and between the connecting end of the second wire rod and the inner wall of the through hole in a sealing manner.

Optionally, the through hole is axially divided into a first portion with a larger radial dimension and a second portion with a smaller radial dimension, the terminal is disposed in the first portion, the connecting end of the first wire is disposed in the first portion, the shape of the second portion matches the shape of the second wire, and the connecting end of the second wire is electrically connected with the other end of the terminal after passing through the second portion.

Optionally, a limiting structure is arranged in the first portion, and the terminal stopper is positioned in the limiting structure.

Optionally, the first portion is divided into a first sub-portion and a second sub-portion along an axial direction, the second sub-portion is connected between the second portion and the first sub-portion, a step is formed between the first sub-portion and the second sub-portion, and the terminal penetrates from the first sub-portion and stops and is positioned at the step.

Optionally, the terminal comprises:

the elastic clamping portion is connected to the connecting body, the elastic clamping portion is located at the step in a stopping mode, and the elastic clamping portion is clamped on the inner wall of the first portion; and

two connecting portion, two connecting portion connect respectively in connect the body, and two connecting portion locate the both ends of elasticity joint portion, one connecting portion with first wire rod fixed connection, another connecting portion with second wire rod fixed connection.

Alternatively, one of the connecting portions wraps and is crimped together with the conductor of the connecting end of the first wire, and the other of the connecting portions wraps and is crimped together with the conductor of the connecting end of the second wire.

Optionally, a first glue filling gap is formed between the position of the connecting portion wrapping the first wire and the first sub-portion, a second glue filling gap is formed between the position of the connecting portion wrapping the second wire and the first portion, a third glue filling gap is formed between the connecting body and the elastic clamping portion, a fourth glue filling gap is formed between the penetrating portion of the second wire and the second portion, the fourth glue filling gap is 0.05-0.2mm, and the first glue filling gap, the second glue filling gap and the third glue filling gap are all larger than the fourth glue filling gap.

Optionally, the terminal further includes a locking protrusion disposed on the connecting body, and the locking protrusion abuts against an inner wall of the first sub portion.

Optionally, the second end is a flared portion, a groove is formed in an end portion of the flared portion, the base body is provided with a plurality of through holes, one terminal, one first wire and one second wire are configured corresponding to each through hole, and a first portion of each through hole falls into the groove.

Optionally, the periphery interval of pedestal is equipped with first annular, second annular and draw-in groove, wear the jar connector and still include first sealing member, second sealing member and jump ring, first annular is close to the flaring portion sets up, first sealing member cover is located in the first annular, the second annular be located first annular dorsad one side of flaring portion, second sealing member cover is located in the second annular, the draw-in groove is located the second annular dorsad one side of first annular, the jump ring can the joint in the draw-in groove.

Optionally, the first sealing element is a U-shaped sealing ring, and the second sealing element is a W-shaped sealing ring.

A manufacturing method of a cylinder penetrating connector comprises the following steps:

a) one end of the first wire is used as a connecting end and is connected with one end of a terminal;

b) one end of a second wire rod is used as a connecting end and penetrates through a through hole of a seat body to be connected with the other end of the terminal, then the connecting end of the second wire rod is penetrated back into the through hole, the terminal is positioned in the through hole, the connecting end of the first wire rod falls into the through hole, the connecting end of the second wire rod falls into the through hole, and the through hole is arranged along the axial direction of the seat body;

c) dispensing from one end of the seat body to the through hole;

d) after the dispensing is finished, a product which is dispensed with glue is placed into the temperature box to enable the glue to be cured quickly, sealing glue is formed, and the sealing glue is filled between the connecting end of the first wire rod and the inner wall of the through hole, between the terminal and the inner wall of the through hole and between the connecting end of the second wire rod and the inner wall of the through hole in a sealing mode.

Optionally, one end of the seat body is a flared portion, a groove is formed in the end portion of the flared portion, the seat body is provided with a plurality of through holes, each through hole falls into the groove, a terminal, a first wire and a second wire are configured according to the step a and the step b corresponding to each through hole, and then glue is dispensed into the groove of the flared portion in the step c.

Optionally, the periphery interval of pedestal is equipped with first annular, second annular and draw-in groove, wear the jar connector and still include first sealing member, second sealing member and jump ring, first annular is close to the flaring portion sets up, the second ring groove is located first annular dorsad one side of flaring portion, the draw-in groove is located second annular dorsad one side of first annular, the manufacturing approach still includes first annular in assembly first sealing member, in second annular in assembly second sealing member and in the step of the assembly jump ring in the draw-in groove.

Optionally, the through hole is axially divided into a first portion with a larger radial dimension and a second portion with a smaller radial dimension, the terminal is disposed in the first portion, the connecting end of the first wire is disposed in the first portion, the shape of the second portion matches the shape of the second wire, and the connecting end of the second wire is electrically connected with the other end of the terminal after passing through the second portion.

A manufacturing method of a cylinder penetrating connector comprises the following steps:

a) one end of a first wire is used as a connecting end and connected with one end of a terminal, and one end of a second wire is used as a connecting end and connected with the other end of the terminal to form a terminal wire assembly;

b) defining one of the other end of the first wire and the other end of the second wire as a starting end of the terminal wire assembly, and enabling the starting end to pass through a through hole of a seat body, so that the terminal is positioned in the through hole, the connecting end of the first wire falls into the through hole, the connecting end of the second wire falls into the through hole, and the through hole is arranged along the axial direction of the seat body;

c) dispensing from one end of the seat body to the through hole;

d) after the dispensing is finished, a product which is dispensed with glue is placed into the temperature box to enable the glue to be cured quickly, sealing glue is formed, and the sealing glue is filled between the connecting end of the first wire rod and the inner wall of the through hole, between the terminal and the inner wall of the through hole and between the connecting end of the second wire rod and the inner wall of the through hole in a sealing mode.

The invention has the beneficial effects that:

compared with the complex structure of the cylinder penetrating connector in the prior art and more related components, the invention forms the through hole extending along the axial direction on the seat body of the cylinder penetrating connector, arranges the terminal in the through hole, and then connects the wires (the first wire and the second wire) inside and outside the cylinder body by the terminal, in particular, the invention leads the connecting ends of the first wire and the second wire and the connecting part of the terminal to fall into the through hole, then fills glue between the connecting end of the first wire and the inner wall of the through hole, between the terminal and the inner wall of the through hole and between the connecting end of the second wire and the inner wall of the through hole and solidifies to form sealing colloid, thereby forming a sealing structure with better extending effect in the axial direction, the sealing structure does not need more sealing parts, has simple structure and good sealing effect, can play a role of shock absorption, thereby realizing better sealing effect, the problem of wear jar connector because operational environment vibrations lead to sealed effect to worsen is solved.

The manufacturing method of the cylinder penetrating connector is used for manufacturing the cylinder penetrating connector, the manufacturing method can be combined with an automatic glue dispensing process, glue is filled from one end of the seat body only, glue is not filled from two ends, the process steps are simplified, and compared with the existing processing mode, the manufacturing method is efficient in production, simple in processing procedure and capable of improving production efficiency.

Drawings

FIG. 1 is a perspective view of a through cylinder connector provided by an embodiment of the present invention;

FIG. 2 is a side view of a through cylinder connector provided by an embodiment of the present invention;

FIG. 3 is a cross-sectional view taken at A-A in FIG. 2;

fig. 4 is a perspective view of a terminal and first and second wires from a first perspective according to an embodiment of the present invention;

fig. 5 is a second perspective view of the terminal and the first and second wires according to the embodiment of the present invention;

fig. 6 is a perspective view of a first perspective of a base according to an embodiment of the present invention;

fig. 7 is a perspective view of a second perspective view of the base according to the embodiment of the invention.

In the figure:

1. a base body; 11. a first end; 12. a second end; 13. a through hole; 131. a limiting structure; 14. a first ring groove; 15. a second ring groove; 16. a card slot; 17. a groove;

2. a terminal; 21. a connecting body; 22. an elastic clamping part; 221. a spring plate; 23. a connecting portion; 24. clamping convex;

3. a first wire rod;

4. sealing the colloid;

5. a first seal member;

6. a second seal member;

7. a clamp spring;

8. a second wire.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. Wherein the terms "first position" and "second position" are two different positions.

Unless expressly stated or limited otherwise, the terms "mounted," "connected," and "secured" are to be construed broadly and encompass, for example, both fixed and removable connections; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

Unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may include the first feature being in direct contact with the second feature, or may include the first feature being in direct contact with the second feature but being in contact with the second feature by another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

The technical scheme of the invention is further explained by the specific implementation mode in combination with the attached drawings of fig. 1-7.

The present embodiment provides a through-cylinder connector, as shown in fig. 1 to 3, including: the terminal comprises a base body 1, a terminal 2, a first wire 3, a second wire 8 and a sealing colloid 4. The base body 1 has a first end 11 and a second end 12, and a through hole 13 is axially formed in the base body 1 and penetrates through the first end 11 and the second end 12. The terminal 2 is disposed in the through hole 13, and one end of the terminal 2 extends toward one end of the through hole 13, and the other end of the terminal 2 extends toward the other end of the through hole 13. The connection end of the first wire 3 is conductively connected to one end of the terminal 2, and the connection end of the first wire 3 falls into the through hole 13. The connection end of the second wire 8 is conductively connected with the other end of the terminal 2, and the connection end of the second wire 8 falls into the through hole 13. The sealant 4 is hermetically filled between the connection end of the first wire 3 and the inner wall of the through hole 13, between the terminal 2 and the inner wall of the through hole 13, and between the connection end of the second wire 8 and the inner wall of the through hole 13.

Compared with the complex structure of the cylinder penetrating connector in the prior art and more components, the through hole 13 extending along the axial direction is formed on the seat body 1, the terminal 2 is arranged in the through hole 13, and the terminals 2 are connected with the wires inside and outside the cylinder body (the first wire 3 and the second wire 8), in particular, the connecting ends of the first wire 8 and the second wire 8 and the connecting part 23 of the terminal 2 fall into the through hole 13, and then glue is filled between the connecting end of the first wire 3 and the inner wall of the through hole 13, between the terminal 2 and the inner wall of the through hole 13 and between the connecting end of the second wire 8 and the inner wall of the through hole 13 and is solidified to form the sealing colloid 4, so that the sealing structure with better extending effect in the axial direction is formed, more sealing components are not needed in the sealing structure, the structure is simple, the sealing effect is good, and the damping effect can be achieved, thereby when realizing better sealed effect, solved and worn jar connector because operational environment vibrations lead to the problem that sealed effect worsens.

Because the working temperature in the oil cylinder is more than 150 ℃, the wire in the oil cylinder is required to have high temperature resistance, such as FEP wire, but the wire is expensive and is not well bonded with the solidified glue. In order to solve the above problem, in the present embodiment, the through hole 13 is divided into a first portion having a larger radial dimension and a second portion having a smaller radial dimension in the axial direction, the terminal 2 is disposed in the first portion, the connection end of the first wire 3 is disposed in the first portion, the shape of the second portion matches the shape of the second wire 8, and the connection end of the second wire 8 is electrically connected to the other end of the terminal 2 after passing through the second portion. Like this, can follow the inner encapsulating of jar, need not follow the both ends encapsulating of through-hole 13, the adhesive force is better between encapsulating region and the pedestal 1, and glues and fill to between terminal 2, first wire rod 3, second wire rod 8 and the pedestal 1, realizes sealed at whole axial, has improved sealed effect, has simplified process steps, has reduced production and processing procedure cost, can play better cushioning effect simultaneously. And is divided into a first portion having a large radial dimension for facilitating the mounting of the terminal 2 and a second portion having a small radial dimension matching the shape of the wire, which prevents the glue from flowing from the end to the surface of the wire when the glue is poured from the second end 12. And the link of second wire 8 enters into the first portion through the second portion and is connected with terminal 2, can form thicker sealing colloid 4 at the junction of second wire 8 to improve sealed effect.

As shown in fig. 3, the second end 12 is a flared portion, and a groove 17 is formed at an end of the flared portion to facilitate dispensing, so that the glue can be continuously and smoothly introduced into the through hole 13. In some alternative embodiments the recess 17 is tapered to facilitate the flow of glue from the recess 17 into the through hole 13. In detail, the housing 1 has a plurality of through holes 13, and a terminal 2, a first wire 3 and a second wire 8 are disposed corresponding to each through hole 13, and a first portion of each through hole 13 falls into the groove 17. The number of through holes 13 in this embodiment is preferably set to eight, ten, twelve, or the like. Of course, the number of the through holes 13 can be set by those skilled in the art according to the needs, and is not limited herein.

As shown in fig. 3, a position-limiting structure 131 is disposed in the first portion, and the terminal 2 is stopped and positioned at the position-limiting structure 131. When penetrating terminal 2 in the first portion, can carry on spacingly through limit structure 131 to terminal 2 to can accurately install terminal 2 in place fast.

Further, the first portion is divided into a first sub-portion and a second sub-portion along the axial direction, the second sub-portion is connected between the second portion and the first sub-portion, a step is formed between the first sub-portion and the second sub-portion, and the terminal 2 penetrates from the first sub-portion and stops and is positioned at the step. It can be understood that when the terminal 2 is mounted, the terminal 2 moves from the first sub-portion to the second sub-portion, and the terminal 2 abuts against the step, so that the terminal 2 cannot move along the through hole 13, and it can be confirmed that the terminal 2 is mounted in place.

As shown in fig. 2 to 5, the terminal 2 includes a connecting body 21, an elastic clamping portion 22 and two connecting portions 23, the elastic clamping portion 22 is connected to the connecting body 21, the elastic clamping portion 22 is located at the step, and the elastic clamping portion 22 is clamped to the inner wall of the first portion, so that the connection reliability between the elastic clamping portion 22 and the first portion can be improved, and the connection reliability between the terminal 2 and the seat body 1 can be further improved. Two connecting portions 23 are respectively connected to the connecting body 21, and two connecting portions 23 are respectively arranged at two ends of the elastic clamping portion 22, one connecting portion 23 is fixedly connected with the first wire 3, and the other connecting portion 23 is fixedly connected with the second wire 8.

In some optional embodiments, the elastic clamping portion 22 includes two elastic pieces 221 disposed oppositely, the elastic pieces 221 are C-shaped, and the two elastic pieces 221 are connected to the connecting body 21 respectively. In detail, the openings of the two elastic pieces 221 are arranged oppositely, and when the terminal 2 slides along the inner wall of the through hole 13, the arc-shaped surface of the elastic piece 221 contacts with the inner wall of the through hole 13, so that the terminal 2 can move conveniently. In particular, the elastic clamping portion 22 of the terminal 2 is abutted against the boss, so that the terminal 2 is limited.

In order to improve the reliability of connection of the terminal 2 and the first and second wires 3 and 8, it is preferable in the present embodiment that one connecting portion 23 wraps the conductor of the connection end of the first wire 3 and is crimped together, and the other connecting portion 23 wraps the conductor of the connection end of the second wire 8 and is crimped together. In detail, the connecting portion 23 has a connecting cavity, an opening extending along the length direction of the terminal 2 is opened on a side wall of the connecting cavity, when the wire is connected with the connecting portion 23, the connecting end of the first wire 3 or the second wire 8 is put into the connecting cavity through the opening, and then the connecting portion 23 is riveted, so that the wire and the terminal 2 are connected together. In some alternative embodiments, the connection portion 23 is C-shaped, U-shaped, or V-shaped.

Particularly, a first glue filling gap is formed between the position of the connecting portion 23 wrapping the first wire 3 and the first sub-portion, a second glue filling gap is formed between the position of the connecting portion 23 wrapping the second wire 8 and the first portion, a third glue filling gap is formed between the connecting body 21 and the elastic clamping portion 22, a fourth glue filling gap is formed between the penetrating portion of the second wire 8 and the second portion, and the fourth glue filling gap is 0.05-0.2mm, so that the quality of a finished product can be better ensured, if the glue filling gap exceeds the gap range, the glue can flow to the surface of the wire from the bottom of the seat body, the appearance of the product is affected, and if the glue filling gap is smaller than the gap range, the wire is not easy to penetrate into the hole during the operation of a worker, and the wire is easy to scratch.

Optionally, the fourth underfill gap is 0.05mm, 0.08mm, 0.1mm, 0.12mm, 0.15mm, 0.17mm, or 0.2mm, and the first underfill gap, the second underfill gap, and the third underfill gap are all larger than the fourth underfill gap. During dispensing, glue is poured from the end part of the second end 12, the glue flows into the first glue filling gap, enters the third glue filling gap from the first glue filling gap, enters the second glue filling gap and finally reaches the fourth glue filling gap.

In order to further improve the reliability of the connection between the terminal 2 and the housing 1, as shown in fig. 3 to 5, the terminal 2 further includes a locking protrusion 24, the locking protrusion 24 is disposed on the connecting body 21, and the locking protrusion 24 abuts against the inner wall of the first sub-portion. In detail, the snap protrusions 24 are obliquely disposed from the connecting body 21 to a direction away from the mounting direction of the terminal 2 and to a direction away from the connecting body 21, so that the terminal 2 can be smoothly mounted in the through hole 13 and is not easily taken out from the through hole 13, thereby improving the reliability of the connection of the terminal 2 and the housing 1. In some alternative embodiments, the snap protrusions 24 are integrally formed by stamping the connecting body 21, so that the machining is convenient, and the strength of the connection between the snap protrusions 24 and the connecting body 21 is improved.

In order to improve the sealing effect between the cylinder penetrating connector and the cylinder body in the embodiment and to absorb shock for the cylinder penetrating connector in the embodiment, as shown in fig. 1, fig. 2 and fig. 3, the outer periphery of the seat body 1 is provided with first ring grooves 14, second ring grooves 15 and clamping grooves 16 at intervals, the cylinder penetrating connector further comprises a first sealing element 5, a second sealing element 6 and a clamping spring 7, the first ring groove 14 is arranged close to the flared portion, the first sealing element 5 is sleeved in the first ring groove 14, that is, the first sealing element 5 is arranged at the flared portion, so that the first sealing element 5 and the inner wall of the mounting hole in the cylinder body can be matched to realize sealing between the seat body 1 and the inner wall of the mounting hole, and the cylinder penetrating connector in the embodiment can be absorbed shock. The second annular groove 15 is located on one side of the first annular groove 14 back to the flaring portion, and the second sealing element 6 is sleeved in the second annular groove 15, so that the sealing effect is further improved. The clamping groove 16 is located on one side, back to the first ring groove 14, of the second ring groove 15, and the clamping spring 7 can be clamped in the clamping groove 16. It can be understood that, when installing the cylinder penetrating connector in the embodiment, the cylinder penetrating connector is fixed on the cylinder body through the clamp spring 7, and the connection stability can be improved.

In some alternative embodiments, the first seal 5 is a U-ring and the second seal 6 is a W-ring.

Example one

The embodiment also provides a manufacturing method of the cylinder penetrating connector, which comprises the following steps:

a) one end of the first wire 3 is connected to one end of one terminal 2 as a connection end.

b) One end of the second wire 8 is used as a connecting end to pass through a through hole 13 of a base 1 and then connected with the other end of the terminal 2, and then the connecting end of the second wire 8 is passed back into the through hole 13 to position the terminal 2 in the through hole 13, so that the connecting end of the first wire 3 falls into the through hole 13, the connecting end of the second wire 8 falls into the through hole 13, and the through hole 13 is arranged along the axial direction of the base 1, of course, the first wire 3, the second wire 8 and the terminal 2 can be connected simultaneously or not, and the connection sequence of the first wire 3, the second wire 8 and the terminal 2 is not limited by the invention.

Further, the through hole 13 is divided into a first portion having a large radial dimension and a second portion having a small radial dimension in the axial direction, the terminal 2 is disposed in the first portion, the connection end of the first wire 3 is disposed in the first portion, the shape of the second portion matches the shape of the second wire 8, and the connection end of the second wire 8 is electrically connected to the other end of the terminal 2 after passing through the second portion.

c) Dispensing is carried out from one end of the base body 1 to the inside of the through hole 13. In detail, one end of the seat body 1 is a flared part, the end of the flared part is provided with a groove 17, the seat body 1 is provided with a plurality of through holes 13, each through hole 13 falls into the groove 17, a terminal 2, a first wire 3 and a second wire 8 are configured according to the step a and the step b corresponding to each through hole 13, and then glue is dispensed into the groove 17 of the flared part in the step c.

d) After the dispensing is finished, the product with the dispensed glue is placed into the temperature box to enable the glue to be cured quickly, a sealing glue body 4 is formed, and the sealing glue body 4 is filled between the connecting end of the first wire rod 3 and the inner wall of the through hole 13, between the terminal 2 and the inner wall of the through hole 13 and between the connecting end of the second wire rod 8 and the inner wall of the through hole 13 in a sealing mode.

Further, the periphery of the seat body 1 is provided with first ring grooves 14, second ring grooves 15 and clamping grooves 16 at intervals, the cylinder penetrating connector further comprises first sealing parts 5, second sealing parts 6 and clamping springs 7, the first ring grooves 14 are arranged close to the flared parts, the second ring grooves 15 are located on one sides, back to the flared parts, of the first ring grooves 14, the clamping grooves 16 are located on one sides, back to the first ring grooves 14, of the second ring grooves 15, and the manufacturing method further comprises the steps of assembling the first sealing parts 5 in the first ring grooves 14, assembling the second sealing parts 6 in the second ring grooves 15 and assembling the clamping springs 7 in the clamping grooves 16. The first seal 5, the second seal 6 and the circlip 7 may be installed in the order before the through-cylinder connector in this embodiment is installed, and the installation steps are not intended to limit the present invention.

In the first embodiment, the step of connecting one end of the second wire 8 as a connecting end with the other end of the terminal 2 after passing through the through hole 13 of the housing 1 and then passing the connecting end of the second wire 8 back into the through hole 13 is included, which mainly corresponds to the other ends of the first wire 3 and the second wire 8 being pre-manufactured with connectors, and the connectors are not convenient to pass through the through hole of the housing, so that the wire form is not limited.

Example two

The present embodiment further provides another method for manufacturing a cylinder penetrating connector, which is used for manufacturing the cylinder penetrating connector of the first embodiment, and the method for manufacturing the cylinder penetrating connector in the present embodiment includes the following steps:

a) one end of the first wire 3 is connected to one end of the terminal 2 as a connection end, and one end of the second wire 8 is connected to the other end of the terminal 2 as a connection end, thereby forming a terminal 2 wire assembly.

b) One of the other end of the first wire 3 and the other end of the second wire 8 is defined as a starting end of a wire assembly of the terminal 2, the starting end is passed through a through hole 13 of the seat body 1, the terminal 2 is positioned in the through hole 13, the connecting end of the first wire 3 falls into the through hole 13, the connecting end of the second wire 8 falls into the through hole 13, and the through hole 13 is arranged along the axial direction of the seat body 1.

c) Dispensing is carried out from one end of the base body 1 to the inside of the through hole 13.

d) After the dispensing is finished, the product with the dispensed glue is placed into the temperature box to enable the glue to be cured quickly, a sealing glue body 4 is formed, and the sealing glue body 4 is filled between the connecting end of the first wire rod 3 and the inner wall of the through hole 13, between the terminal 2 and the inner wall of the through hole 13 and between the connecting end of the second wire rod 8 and the inner wall of the through hole 13 in a sealing mode.

In the second embodiment, the step of passing one end of the second wire 8 through the through hole 13 of the base 1 as the connection end and then connecting the connection end of the second wire 8 to the through hole 13 is not included, which mainly corresponds to the case where both ends of the first wire 3 and the second wire 8 are bare wires, so that the one end of the first wire 3 is used as the connection end and connected to one end of the terminal 2, and the one end of the second wire 8 is used as the connection end and connected to the other end of the terminal 2, thereby forming a terminal 2 wire assembly, which can make the manufacturing process simpler.

The technical principle of the present invention is described above in connection with specific embodiments. The description is made for the purpose of illustrating the principles of the invention and should not be construed in any way as limiting the scope of the invention. Based on the explanations herein, those skilled in the art will be able to conceive of other embodiments of the present invention without inventive effort, which would fall within the scope of the present invention.

Claims (16)

1. A through-cylinder connector, comprising:

the seat body (1), the seat body (1) is provided with a first end (11) and a second end (12), and a through hole (13) penetrating through the first end (11) and the second end (12) is formed in the seat body (1) along the axial direction;

the terminal (2) is arranged in the through hole (13), one end of the terminal (2) extends towards one end of the through hole (13), and the other end of the terminal (2) extends towards the other end of the through hole (13);

the connecting end of the first wire (3) is in conductive connection with one end of the terminal (2), and the connecting end of the first wire (3) falls into the through hole (13);

the connecting end of the second wire (8) is in conductive connection with the other end of the terminal (2), and the connecting end of the second wire (8) falls into the through hole (13); and

sealing colloid (4), sealing colloid (4) seal fill in the link of first wire rod (3) with between the inner wall of through-hole (13), terminal (2) with between the inner wall of through-hole (13) and the link of second wire rod (8) with between the inner wall of through-hole (13).

2. A through-cylinder connector according to claim 1, characterized in that the through-hole (13) is axially divided into a first portion with a larger radial dimension and a second portion with a smaller radial dimension, the terminal (2) being arranged in the first portion, the connecting end of the first wire (3) being arranged in the first portion, the shape of the second portion matching the shape of the second wire (8), the connecting end of the second wire (8) passing through the second portion being conductively connected to the other end of the terminal (2).

3. A through-cylinder connector according to claim 2, characterized in that a stop structure (131) is provided in the first part, the terminal (2) being stopped and positioned at the stop structure (131).

4. A through-cylinder connector according to claim 3, characterized in that the first part is divided into a first sub-part and a second sub-part in the axial direction, the second sub-part is connected between the second part and the first sub-part, a step is formed between the first sub-part and the second sub-part, and the terminal (2) penetrates from the first sub-part and is stopped and positioned at the step.

5. A through-cylinder connector according to claim 4, characterized in that the terminal (2) comprises:

the connecting structure comprises a connecting body (21) and an elastic clamping portion (22), wherein the elastic clamping portion (22) is connected to the connecting body (21), the elastic clamping portion (22) is located at the step in a stopping mode, and the elastic clamping portion (22) is clamped to the inner wall of the first portion; and

two connecting portion (23), two connecting portion (23) connect respectively in connecting body (21), and two connecting portion (23) are located the both ends of elasticity joint portion (22), one connecting portion (23) with first wire rod (3) fixed connection, another connecting portion (23) with second wire rod (8) fixed connection.

6. A through-cylinder connector according to claim 5 wherein one of the connecting portions (23) wraps around and is crimped together with the conductor of the connecting end of the first wire (3) and the other connecting portion (23) wraps around and is crimped together with the conductor of the connecting end of the second wire (8).

7. The through-cylinder connector according to claim 6, characterized in that a first glue filling gap is formed between the position of the connecting part (23) wrapping the first wire (3) and the first sub-part, a second glue filling gap is formed between the position of the connecting part (23) wrapping the second wire (8) and the first part, a third glue filling gap is formed between the connecting body (21) and the elastic clamping part (22), a fourth glue filling gap is formed between the penetrating part of the second wire (8) and the second part, the fourth glue filling gap is 0.05-0.2mm, and the first glue filling gap, the second glue filling gap and the third glue filling gap are all larger than the fourth glue filling gap.

8. Cylinder through connector according to claim 5, characterized in that the terminal (2) further comprises a snap projection (24), the snap projection (24) being provided at the connecting body (21), the snap projection (24) abutting against an inner wall of the first sub-part.

9. A through-cylinder connector according to claim 2, characterized in that the second end (12) is a flared portion, the end of which is provided with a groove (17), the housing (1) is provided with a plurality of said through-holes (13), one terminal (2), one first wire (3) and one second wire (8) are provided for each through-hole (13), and a first portion of each through-hole (13) falls into the groove (17).

10. The cylinder penetrating connector according to claim 9, wherein a first ring groove (14), a second ring groove (15) and a clamping groove (16) are formed in the periphery of the seat body (1) at intervals, the cylinder penetrating connector further comprises a first sealing element (5), a second sealing element (6) and a clamping spring (7), the first ring groove (14) is close to the flaring portion, the first sealing element (5) is sleeved in the first ring groove (14), the second ring groove (15) is located on one side, back to the flaring portion, of the first ring groove (14), the second sealing element (6) is sleeved in the second ring groove (15), the clamping groove (16) is located on one side, back to the first ring groove (14), of the second ring groove (15), and the clamping spring (7) can be clamped in the clamping groove (16).

11. A through-cylinder connector according to claim 10, characterized in that the first seal (5) is a U-ring and the second seal (6) is a W-ring.

12. A manufacturing method of a cylinder penetrating connector is characterized by comprising the following steps:

a) one end of the first wire (3) is used as a connecting end and is connected with one end of a terminal (2);

b) one end of a second wire (8) is used as a connecting end to penetrate through a through hole (13) of a seat body (1) and then is connected with the other end of the terminal (2), then the connecting end of the second wire (8) penetrates back into the through hole (13), the terminal (2) is positioned in the through hole (13), the connecting end of the first wire (3) falls into the through hole (13), the connecting end of the second wire (8) falls into the through hole (13), and the through hole (13) is arranged along the axial direction of the seat body (1);

c) dispensing from one end of the seat body (1) to the inside of the through hole (13);

d) after dispensing is finished, a product which is dispensed with glue is placed into the temperature box to enable glue to be cured quickly, a sealing colloid (4) is formed, and the sealing colloid (4) is hermetically filled between the connecting end of the first wire (3) and the inner wall of the through hole (13), between the terminal (2) and the inner wall of the through hole (13) and between the connecting end of the second wire (8) and the inner wall of the through hole (13).

13. The method for manufacturing a cylinder penetrating connector according to claim 12, wherein one end of the seat body (1) is a flared part, a groove (17) is formed at the end of the flared part, the seat body (1) is provided with a plurality of through holes (13), each through hole (13) falls into the groove (17), and corresponding to each through hole (13), the terminal (2), the first wire (3) and the second wire (8) are firstly configured according to the steps a and b, and then glue is dispensed into the groove (17) of the flared part in the step c.

14. The method of manufacturing a through-cylinder connector according to claim 12 or 13, the periphery of the seat body (1) is provided with a first ring groove (14), a second ring groove (15) and a clamping groove (16) at intervals, the cylinder penetrating connector also comprises a first sealing element (5), a second sealing element (6) and a clamp spring (7), the first ring groove (14) is arranged close to the flaring part, the second ring groove (15) is positioned at one side of the first ring groove (14) back to the flaring part, the clamping groove (16) is positioned on one side of the second ring groove (15) back to the first ring groove (14), the manufacturing method further comprises the steps of assembling the first sealing element (5) in the first ring groove (14), assembling the second sealing element (6) in the second ring groove (15) and assembling the clamp spring (7) in the clamping groove (16).

15. A method of manufacturing a through-cylinder connector according to claim 12 or 13, wherein the through-hole (13) is divided in an axial direction into a first portion having a larger radial dimension and a second portion having a smaller radial dimension, the terminal (2) is provided in the first portion, the connection end of the first wire (3) is provided in the first portion, the shape of the second portion matches the shape of the second wire (8), and the connection end of the second wire (8) is electrically connected to the other end of the terminal (2) after passing through the second portion.

16. A manufacturing method of a cylinder penetrating connector is characterized by comprising the following steps:

a) one end of a first wire (3) is used as a connecting end and is connected with one end of a terminal (2), one end of a second wire (8) is used as a connecting end and is connected with the other end of the terminal (2), and a terminal (2) wire assembly is formed;

b) defining one of the other end of the first wire (3) and the other end of the second wire (8) as a starting end of a wire component of the terminal (2), penetrating the starting end through a through hole (13) of a seat body (1), positioning the terminal (2) in the through hole (13), enabling the connecting end of the first wire (3) to fall into the through hole (13), enabling the connecting end of the second wire (8) to fall into the through hole (13), and enabling the through hole (13) to be arranged along the axial direction of the seat body (1);

c) dispensing from one end of the seat body (1) to the inside of the through hole (13);

d) after dispensing is finished, a product which is dispensed with glue is placed into the temperature box to enable glue to be cured quickly, a sealing colloid (4) is formed, and the sealing colloid (4) is hermetically filled between the connecting end of the first wire (3) and the inner wall of the through hole (13), between the terminal (2) and the inner wall of the through hole (13) and between the connecting end of the second wire (8) and the inner wall of the through hole (13).

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