Hard insulator needle seat
By using the clamp ring and limit ring groove in the hard insulator needle base, the tilt problem caused by the elastic recovery force of the conductor is solved, ensuring that the conductive pin is inserted smoothly and avoiding the welding cup from desoldering from the conductor, which improves the Product quality and production efficiency, and achieve waterproofing effect.
Patent Information
- Application Number
- CN202420843965.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-22
- Publication Date
- 2024-12-06
- Estimated Expiration
- 2034-04-22
AI Technical Summary
The connector pin holder in the prior art causes the conductive pin to tilt due to the elastic restoration force of the wire, and cannot be inserted smoothly into the jack hole, and the welding cup and the wire are easily desoldered, causing product quality problems.
Designed with a hard insulator needle holder, by setting a clamp ring and limit ring groove in the conductive pin, tightening with adhesive silicone, ensuring that the conductive pin effectively jammed in the hard insulator, avoiding tilting, and bending The wires are retained inside the head for easy welding.
It effectively avoids the inclination of the conductive pin and the desoldering of the welding cup and the wire, ensures the smooth insertion of the conductive pin and the hole head connector, improves product quality and production efficiency, and achieves waterproof sealing.
Smart Images
Figure CN222127020U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of needle seats, in particular to a hard insulator needle seat. Background Art
[0002] The connector pin seat in the prior art is as follows Figure 1 As shown, it includes an elbow 1 and a semicircular shell 2, wherein a rubber insulator 21 is provided inside the semicircular shell 2, and a plurality of conductive pins 22 are embedded in the rubber insulator 21. A welding cup 225 is provided at the rear end of the conductive pin 22, and a wire 24 is welded to the welding cup 225. The wire 24 turns inside the elbow 1 and passes through the lower end of the elbow 1. In order to facilitate welding and prevent the wire from being welded off due to pulling, a relatively long section of the wire 24 is retained inside the elbow 1, so that the section of the wire 24 is arched inside the elbow 1 (elastic deformation). Since the outer diameter of the wire 24 is large and the outer skin is thick, the elastic restoring force generated at the arch is very large, so that the end of the wire 24 forms an upward force F on the welding cup 225, and the force F is very large. Since the rubber insulator 21 is a soft material, the force F will push the end where the solder cup 225 is located to tilt upward, while the end where the needle head of the conductive pin 22 is located to tilt downward, resulting in the conductive pin 22 being unable to be smoothly inserted into the socket of the female connector matching the needle holder, thereby causing quality problems for the needle holder product. On the other hand, the upward tilt of the end where the solder cup 225 is located will cause the solder cup 225 and the wire 24 to become desoldered. Utility Model Content
[0003] The utility model aims to provide a hard insulator pin holder, which can prevent the conductive pin from being tilted and deformed due to a large deflection force, thereby avoiding the quality problem that the conductive pin cannot be smoothly inserted into the socket, and can prevent the solder cup from being desoldered from the wire.
[0004] In order to achieve the above purpose, the utility model provides the following technical solutions:
[0005] A hard insulator needle seat comprises an elbow and a semicircular shell, the semicircular shell is detachably matched with one end of the elbow, a hard insulator is fixedly connected in the semicircular shell, a plurality of conductive pins are passed through the hard insulator, the front and rear ends of the conductive pins respectively pass through the front and rear end surfaces of the hard insulator, a plurality of positioning countersunk holes are arranged on the rear end surface of the hard insulator, the conductive pin is in the shape of a stepped shaft, the conductive pin is provided with a middle section and a rear section, the diameter of the rear section is larger than that of the middle section, the rear section is arranged in the positioning countersunk hole, a plurality of glue injection countersunk holes are arranged on the front end surface of the hard insulator, a limiting ring groove is arranged on the outer wall of the middle section, a clamping ring is arranged on the limiting ring groove sleeve, and the clamping ring is arranged in the glue injection countersunk hole.
[0006] Specifically, a rubber gasket is provided on the front end surface of the hard insulator, the conductive pin passes through the rubber gasket, and the space surrounded by the rubber gasket and the glue injection countersunk hole is filled with adhesive silica gel.
[0007] Specifically, the axial thickness of the clamping ring is smaller than the axial thickness of the limiting ring groove, and the clamping ring is in contact with the bottom wall of the glue injection countersunk hole.
[0008] Specifically, the circumferential surface of the middle section is provided with anti-rotation straight lines.
[0009] Specifically, an annular injection notch is provided on the edge of the rear end face of the hard insulator, a shell annular groove is provided on the inner wall of the semicircular shell corresponding to the annular injection notch, an expansion ring is provided in the shell annular groove, and the annular injection notch is filled with adhesive silica gel.
[0010] Specifically, the axial thickness of the expansion ring is smaller than the axial thickness of the housing ring groove, and the expansion ring is in contact with the rear groove wall of the housing ring groove.
[0011] Specifically, the rear section passes through the rear end surface of the hard insulator, and a welding cup is arranged at the end of the rear section.
[0012] Specifically, the elbow includes two parts, a horizontal tube and a vertical tube. The front end of the horizontal tube is detachably matched with the semicircular shell. The front end outer wall of the horizontal tube is provided with a first sealing groove, the first sealing groove is provided with a first rubber sealing ring, and the lower end of the vertical tube is fixedly connected with a mounting seat.
[0013] Specifically, a second sealing groove is provided on the outer wall of the front section of the semicircular shell, and a second rubber sealing ring is provided in the second sealing groove.
[0014] Compared with the prior art, the utility model has the following beneficial effects:
[0015] A solder cup is provided at the rear end of the conductive pin, and a wire is welded to the solder cup. The wire turns inside the elbow and passes through the lower end of the elbow. In order to facilitate welding, a longer section of wire is retained inside the elbow, so that the section of wire is arched inside the elbow (elastic deformation). Due to the large outer diameter of the wire and the thick outer skin, the elastic restoring force generated at the arch is very large, so that the end of the wire forms an upward force F on the solder cup, and the force F is very large (see background technology).
[0016] In order to prevent the conductive pin from tilting due to the force F, the utility model uses a clamp to hold the conductive pin in the hard insulator, ensuring the effective fastening of the conductive pin and the hard insulator. The hard insulator is made of a high-hardness material, and even if the solder cup of the conductive pin is subjected to the force F, the hard insulator will not be deformed. Therefore, the conductive pin is restricted by the hard insulator and will not tilt, so that the conductive pin and the socket of the female connector can be smoothly plugged in, avoiding product quality problems. In addition, the conductive pin will not tilt, which can prevent the solder cup from being desoldered from the wire. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.
[0018] Figure 1 It is a cutaway view of a connector needle seat in the prior art;
[0019] Figure 2 It is a cutaway view of the hard insulator needle seat of the utility model;
[0020] Figure 3 for Figure 2 A partial enlarged view of point A in the middle;
[0021] Figure 4 for Figure 2 A partial view of
[0022] Figure 5 It is a front view of the hard insulator needle seat of the utility model;
[0023] Figure 6 It is a bottom view of the hard insulator needle seat of the utility model.
[0024] In the figure:
[0025] 1. elbow; 11. horizontal pipe; 111. first sealing groove; 12. vertical pipe; 121. mounting seat;
[0026] 2. Semicircular shell; 201. Second sealing groove; 21. Rubber insulator; 22. Conductive pin; 221. Middle section; 2211. Stop straight groove; 222. Limit ring groove; 223. Clamp ring; 224. Rear section; 225. Solder cup; 24. Wire; 25. Hard insulator; 251. Glue injection countersunk hole; 252. Annular glue injection notch; 253. Positioning countersunk hole; 26. Rubber gasket; 27. Adhesive silicone; 28. Shell ring groove; 29. Expansion ring. DETAILED DESCRIPTION
[0027] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.
[0028] See Figures 2 to 6A hard insulator needle holder includes an elbow 1 and a semicircular shell 2, and the semicircular shell 2 is detachably matched with one end of the elbow 1. A hard insulator 25 is fixedly connected in the semicircular shell 2, and a plurality of conductive pins 22 are penetrated through the hard insulator 25. The front and rear ends of the conductive pins 22 respectively penetrate the front and rear end surfaces of the hard insulator 25. The rear end surface of the hard insulator 25 is provided with a plurality of positioning countersunk holes 253.
[0029] The conductive pin 22 is in the shape of a stepped shaft, and is provided with a middle section 221 and a rear section 224. The diameter of the rear section 224 is larger than that of the middle section 221, and the rear section 224 is arranged in the positioning countersunk hole 253. The front end surface of the hard insulator 25 is provided with a plurality of glue injection countersunk holes 251, and the outer wall of the middle section 221 is provided with a limiting ring groove 222, and the limiting ring groove 222 is sleeved with a clamping ring 223, and the clamping ring 223 is located in the glue injection countersunk hole 251.
[0030] Specifically, a rubber gasket 26 is provided on the front end surface of the hard insulator 25 , the conductive pin 22 passes through the rubber gasket 26 , and the space surrounded by the rubber gasket 26 and the glue injection countersunk hole 251 is filled with adhesive silica gel 27 .
[0031] Specifically, the axial thickness of the clamping ring 223 is smaller than the axial thickness of the limiting ring groove 222 , and the clamping ring 223 is in contact with the bottom wall of the glue injection counterbore 251 .
[0032] Specifically, the circumferential surface of the middle section 221 is provided with a straight anti-rotation groove 2211 .
[0033] Specifically, the edge of the rear end face of the hard insulator 25 is provided with an annular injection notch 252 , the inner wall of the semicircular shell 2 corresponding to the annular injection notch 252 is provided with a shell annular groove 28 , a swelling ring 29 is provided in the shell annular groove 28 , and the annular injection notch 252 is filled with adhesive silicone 27 .
[0034] Specifically, the axial thickness of the expansion ring 29 is smaller than the axial thickness of the housing annular groove 28 , and the expansion ring 29 abuts against the rear groove wall of the housing annular groove 28 .
[0035] Specifically, the rear section 224 passes through the rear end surface of the hard insulator 25 , and a welding cup 225 is provided at the end of the rear section 224 .
[0036] Specifically, the elbow 1 includes two parts, a horizontal pipe 11 and a vertical pipe 12. The front end of the horizontal pipe 11 is detachably matched with the semicircular shell 2. The front end outer wall of the horizontal pipe 11 is provided with a first sealing groove 111, and the first sealing groove 111 is provided with a first rubber sealing ring. The lower end of the vertical pipe 12 is fixedly connected with a mounting seat 121.
[0037] Specifically, a second sealing groove 201 is provided on the outer wall of the front section of the semicircular shell 2, and a second rubber sealing ring is provided in the second sealing groove 201.
[0038] The working principle of the hard insulator needle holder of the utility model is as follows:
[0039] When installing the hard insulator pin holder, first insert the conductive pin 22 from right to left into the hard insulator 25, so that the left end surface of the rear section 224 abuts against the bottom wall of the positioning countersunk hole 253 to achieve positioning. At this time, the front end of the middle section 221 penetrates the injection countersunk hole 251. Then, the clamping ring 223 is put on the limiting ring groove 222, so that the conductive pin 22 is installed on the hard insulator 25 to form a combination (such as Figure 4 shown).
[0040] Then, the combination (such as Figure 4 As shown) is placed into the semicircular shell 2, so that the conical annular surface of the outer wall of the hard insulator 25 is close to the conical annular surface of the inner wall of the semicircular shell 2 (the abutment point is Figure 2 Then, the expansion ring 29 is installed in the housing annular groove 28, and the expansion ring 29 abuts against the rear end surface of the hard insulator 25 to achieve axial positioning of the hard insulator 25.
[0041] Then, the adhesive silicone 27 is injected into the annular injection gap 252, and the position of the expansion ring 29 is fixed together with the shell ring groove 28, so that the hard insulator 25 is kept stuck in the semicircular shell 2 through the expansion ring 29 and the conical ring surface of the inner wall of the semicircular shell 2. In addition, the adhesive silicone 27 is injected into the injection counterbore 251 to fix the position of the clamping ring 223, so that the conductive pin 22 is kept stuck in the hard insulator 25 through the clamping ring 223 and the positioning counterbore 253 on the rear end face of the hard insulator. In addition, the rubber gasket 26 is sleeved on the front section of the conductive pin 22, so that the rear wall of the rubber gasket 26 is close to the front wall of the hard insulator 25, and the adhesive silicone 27 in the injection counterbore 251 bonds the rubber gasket 26 and the hard insulator 25 together.
[0042] The installation process of the hard insulator pin holder of the utility model is as above, and the conductive pin 22 and the hard insulator 25 are quickly assembled to form a combination (such as Figure 4 As shown), the assembly is then installed into the semicircular shell 2. The assembly (as shown Figure 4 The assembly process of the assembly (as shown) is simple and convenient, and there is no need to produce the assembly by using the method of using the conductive pin as an insert and positioning it in the injection mold for injection molding, thereby eliminating the step of "using the conductive pin as an insert and positioning it in the injection mold" in the above method, so as to facilitate production and processing, thereby improving production efficiency.
[0043] A solder cup is provided at the rear end of the conductive pin, and a wire is welded to the solder cup. The wire turns inside the elbow and passes through the lower end of the elbow. In order to facilitate welding, a longer section of wire is retained inside the elbow, so that the section of wire is arched inside the elbow (elastic deformation). Due to the large outer diameter of the wire and the thick outer skin, the elastic restoring force generated at the arch is very large, so that the end of the wire forms an upward force F on the solder cup, and the force F is very large (see background technology).
[0044] In order to prevent the conductive pin from tilting due to the force F, the utility model uses a clamp to hold the conductive pin in the hard insulator, ensuring the effective fastening of the conductive pin and the hard insulator. The hard insulator is made of a high-hardness material, and even if the solder cup of the conductive pin is subjected to the force F, the hard insulator will not be deformed. Therefore, the conductive pin is restricted by the hard insulator and will not tilt, so that the conductive pin and the socket of the female connector can be smoothly plugged in, avoiding product quality problems. In addition, the conductive pin will not tilt, which can prevent the solder cup from being desoldered from the wire.
[0045] The adhesive silicone 27 injected into the annular injection gap 252 forms a seal between the circumference of the hard insulator 25 and the inner wall of the semicircular shell 2, and the adhesive silicone 27 injected into the injection countersunk hole 251 forms a seal with the outer wall of the conductive pin 22, so that the product meets the waterproof grade requirements.
[0046] When the plug is inserted into the left end opening of the semicircular shell 2, the end of the plug abuts against the rubber gasket 26, and the rubber gasket 26 plays a buffering role.
[0047] The above are only preferred embodiments of the present invention, and are not intended to limit the present invention in any form. Although the present invention has been disclosed as a preferred embodiment as above, it is not intended to limit the present invention. Any technical personnel in this field can make some changes or modify the technical contents disclosed above into equivalent embodiments without departing from the scope of the technical solution of the present invention. However, any brief modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of the technical solution of the present invention.
Claims
1. A hard insulator needle seat, characterized in that: The invention comprises an elbow (1) and a semicircular shell (2), wherein the semicircular shell (2) is detachably matched with one end of the elbow (1), a hard insulator (25) is fixedly connected inside the semicircular shell (2), a plurality of conductive pins (22) are penetrated through the hard insulator (25), the front and rear ends of the conductive pins (22) respectively penetrate the front and rear end surfaces of the hard insulator (25), a plurality of positioning countersunk holes (253) are provided on the rear end surface of the hard insulator (25), and the conductive pins (22) are in the shape of a stepped shaft. The conductive pin (22) is provided with a middle section (221) and a rear section (224). The diameter of the rear section (224) is larger than that of the middle section (221). The rear section (224) is arranged in a positioning countersunk hole (253). The front end surface of the hard insulator (25) is provided with a plurality of glue injection countersunk holes (251). The outer wall of the middle section (221) is provided with a limiting ring groove (222). The limiting ring groove (222) is sleeved with a clamping ring (223). The clamping ring (223) is located in the glue injection countersunk hole (251).
2. The hard insulator needle seat according to claim 1, characterized in that: A rubber gasket (26) is provided on the front end surface of the hard insulator (25), the conductive pin (22) passes through the rubber gasket (26), and the space enclosed by the rubber gasket (26) and the glue injection countersunk hole (251) is filled with adhesive silica gel (27).
3. The hard insulator needle seat according to claim 1, characterized in that: The axial thickness of the clamping ring (223) is smaller than the axial thickness of the limiting ring groove (222), and the clamping ring (223) is in contact with the bottom wall of the glue injection countersunk hole (251).
4. The hard insulator needle seat according to claim 1, characterized in that: The peripheral surface of the middle section (221) is provided with a straight anti-rotation groove (2211).
5. The hard insulator needle seat according to claim 1, characterized in that: An annular glue injection notch (252) is provided on the edge of the rear end face of the hard insulator (25), a shell annular groove (28) is provided on the inner wall of the semicircular shell (2) corresponding to the annular glue injection notch (252), an expansion ring (29) is provided in the shell annular groove (28), and the annular glue injection notch (252) is filled with adhesive silica gel (27).
6. The hard insulator needle seat according to claim 5, characterized in that: The axial thickness of the expansion ring (29) is smaller than the axial thickness of the housing annular groove (28), and the expansion ring (29) is in contact with the rear groove wall of the housing annular groove (28).
7. The hard insulator needle seat according to claim 1, characterized in that: The rear section (224) passes through the rear end surface of the hard insulator (25), and a welding cup (225) is provided at the end of the rear section (224).
8. The hard insulator needle seat according to claim 1, characterized in that: The elbow (1) comprises two parts, a transverse tube (11) and a vertical tube (12); the front end of the transverse tube (11) is detachably matched with the semicircular shell (2); the front end outer wall of the transverse tube (11) is provided with a first sealing groove (111); the first sealing groove (111) is provided with a first rubber sealing ring; the lower end of the vertical tube (12) is fixedly connected with a mounting seat (121).
9. The hard insulator needle seat according to claim 1, characterized in that: A second sealing groove (201) is provided on the front outer wall of the semicircular shell (2), and a second rubber sealing ring is provided in the second sealing groove (201).