Connector with terminal balancing device
Through the engagement and locking structure of the elastic arm and the clamping hole, the problem of easy falling off and insufficient cleanliness of the limiting plate is solved, and the stable locking and cleanliness are improved.
Patent Information
- Application Number
- CN202421936425.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-09
- Publication Date
- 2025-07-04
- Estimated Expiration
- 2034-08-09
AI Technical Summary
In the prior art, the assembly structure of the limiting plate and the plastic seat is prone to cause plastic particle powder to enter the connector, failing to meet the product cleanliness requirements, and the limiting plate is prone to fall off, resulting in poor product.
The elastic arm and its ends are buckled with the clamp hole of the plastic seat to form a vertical lock. The limiting plate passes through the adjacent terminals through the elastic arm and then extends into the clamp hole to ensure stable locking and use elastic deformation to reduce wear.
The stable locking of the limit plate is achieved, the generation of plastic particles is reduced, the cleanliness and functional requirements are ensured, and the adverse phenomena caused by the limit plate falling off are avoided.
Smart Images
Figure CN223066509U_ABST
Abstract
Description
Technical Field:
[0001] The utility model relates to the technical field of connector products, and particularly refers to a connector with a terminal balancing device. Background Art:
[0002] The main supporting fields of electrical connectors include new energy vehicles, transportation, communication, network, IT, medical, household appliances, military electronic products, etc. The rapid development of the technical level of products in the supporting fields and the rapid growth of their markets strongly drive the development of connector technology. So far, electrical connectors have developed into a series of and specialized products with complete product categories, rich variety specifications, diverse structural forms, detailed professional directions, obvious industry characteristics, and standardized standard systems.
[0003] Refer to Figures 1-2 As shown, there is an automotive connector 1, which includes a plastic seat 11, terminals 12 inserted into the plastic seat 11, and a limiting plate 13 installed on the plastic seat 11 to limit the terminals 12. The limiting plate 13 has a plurality of limiting holes 131, and the pin portions 121 of the terminals 12 pass through the limiting holes 131 and extend out of the end face of the limiting plate 13. Among them, the assembly structure of the limiting plate 13 and the plastic seat 11 is as follows: The plastic seat 11 is provided with two symmetrically distributed step grooves 111, and hooks 112 are formed on the inner walls of the step grooves 111. The limiting plate 13 is pressed into the step grooves 111 from the outside to the inside. Among them, the outer side of the limiting plate 13 needs to squeeze the hooks 112 and cross the hooks 112 before it can enter the step grooves 111, and the hooks 112 latch the limiting plate 13 to form a vertical locking, so as to position the limiting plate 13 on the plastic seat 11. The limiting plate 13 limits the terminals 12 through the limiting holes 131 to ensure the stability of the assembly of the terminals 12.
[0004] However, when the limiting plate 13 is pressed into the step groove 111, the outer side of the limiting plate 13 and the hooks 112 have hard extrusion interference, which easily generates plastic particles / powders, etc., and enters the inner wall of the connector, resulting in failure to meet the product cleanliness requirements; in order to enable the limiting plate 13 to smoothly cross the hooks 112, it is necessary to design the hooks 112 to be relatively thin. As a result, when the limiting plate 13 squeezes and interferes with the hooks 112, the hooks 112 are prone to breakage, that is, the plastic seat 11 is prone to damage, and further, the limiting plate 13 cannot be effectively limited, causing the limiting plate 13 to fall off, resulting in defective products.
[0005] In view of this, the inventor of the present invention proposes the following technical solutions. Content of the Utility Model:
[0006] The purpose of the utility model is to overcome the deficiencies of the prior art and provide a connector with a terminal balancing device.
[0007] To solve the above technical problems, the present utility model adopts the following technical solutions: The connector with a terminal balancing device includes: a plastic base; terminals inserted into the plastic base; and a terminal balancing device including a limiting plate mounted on the plastic base. The limiting plate is provided with a through limiting hole and sleeved around the terminal through the limiting hole to limit the terminal, thereby balancing the terminal. An elastic arm is formed at the lower end of the limiting plate, and an inverted buckle is formed at the end of the elastic arm. A clamping hole is provided at the lower end of the plastic base. During the process of installing the limiting plate into the plastic base, the elastic arm passes through a first gap between two adjacent terminals and extends into the clamping hole, and the inverted buckle is clamped outside the lower port of the clamping hole to form a vertical locking.
[0008] Furthermore, in the above technical solution, the number of the elastic arms is two, which are symmetrically distributed, and a second gap is formed between them to form a harpoon foot structure.
[0009] Furthermore, in the above technical solution, at least one limiting protrusion is formed on the outer side of the limiting plate, and at least one first limiting groove distributed from top to bottom is provided on the plastic base. The limiting protrusion is pressed into the first limiting groove from top to bottom to form a left-right direction limit or a front-back and left-right direction limit.
[0010] Furthermore, in the above technical solution, the limiting protrusion is straight or right-angled, and correspondingly, the first limiting groove is also straight or right-angled.
[0011] Furthermore, in the above technical solution, the terminals include a first terminal and a second terminal distributed at intervals in two rows. The first contact portion of the first terminal and the second contact portion of the second terminal are both inserted into and exposed in the docking groove of the plastic base. The first main body portion and the first pin portion of the first terminal, and the second main body portion and the second pin portion of the second terminal are all exposed outside the rear side of the plastic base. The first pin portion and the second pin portion both pass through the limiting hole of the limiting plate.
[0012] Furthermore, in the above technical solution, a first convex plate protruding backward is formed on the rear side of the plastic base. A step is formed between the upper end surface of the first convex plate and the rear side surface of the plastic base, and the limiting plate is mounted on the step.
[0013] Furthermore, in the above technical solution, a plurality of support bars are formed at the front end of the first convex plate, and the lower end surface of the limiting plate also abuts against the support bars.
[0014] Furthermore, in the above technical solution, a second convex plate protruding backward is formed on the rear side of the plastic base. The second convex plate is located below the first convex plate, and the clamping hole is provided on the second convex plate.
[0015] Furthermore, in the above technical solution, a second limiting groove is also provided at the front end of the first protruding plate, and the first main body is pressed into the second limiting groove; a third limiting groove is also provided at the front end of the second protruding plate, and the second main body is pressed into the third limiting groove, so that a third interval is formed between the second main body and the first main body.
[0016] Furthermore, in the above technical solution, a plurality of fool-proof ribs are provided on the inner wall of the docking groove.
[0017] After adopting the above technical scheme, the utility model has the following beneficial effects compared with the prior art: the limit plate in the utility model adopts the elastic arm and the undercut at the end thereof to engage with the card hole of the plastic seat to form a vertical locking, and its assembly structure is stable, ensuring that the limit plate is firmly locked on the plastic seat and it is not easy to separate; because the elastic arm itself has a certain elastic deformation ability, it is elastic interference when passing through the card hole, and it has less wear and tear, and it is not easy to cause damage to the elastic arm and the plastic seat, and it basically will not / is not easy to cause plastic particle dust to be generated, thereby meeting the product cleanliness and functional requirements. It is worth mentioning that even if a trace amount of plastic particle dust is generated, the elastic arm will first pass through the first interval between the two adjacent terminals during reassembly, and then extend into the card hole, that is, a trace amount of plastic particle dust will not fall between the plastic seat and the terminal, and will not fall into the inside of the connector, and the product cleanliness can also meet the requirements. Description of the drawings:
[0018] Figure 1 It is a stereogram of an automobile connector in the prior art;
[0019] Figure 2 It is a front view of an automobile connector in the prior art;
[0020] Figure 3 It is a stereogram of the utility model from the first viewing angle;
[0021] Figure 4 It is a stereogram of the second viewing angle of the utility model;
[0022] Figure 5 It is a three-dimensional exploded view of the utility model;
[0023] Figure 6 It is a stereogram of the utility model from a third viewing angle;
[0024] Figure 7 It is a stereoscopic diagram of the terminal balancing device in the utility model.
[0025] Description of reference numerals:
[0026] Automotive connector 1 Plastic seat 11 Step groove 111
[0027] Hook 112 Upper terminal 12 Pin portion 121
[0028] Limit plate 13 Limit hole 131 Plastic seat 2
[0029] Docking slot 20 Clamping hole 201 First limiting slot 202
[0030] Step 203 Anti-fouling rib 204 Support bar 211
[0031] Second limiting groove 212 Second convex plate 22 Third limiting groove 221
[0032] Terminal 3 First terminal 31 First contact portion 311
[0033] First body portion 312 First pin portion 313 Second terminal 32
[0034] Second contact portion 321 Second main body portion 322 Second pin portion 323
[0035] Limiting plate 4 Limiting hole 41 Elastic arm 42
[0036] Second spacer 420 Undercut 421 Position limiting convex part 43 Specific implementation method:
[0037] The utility model is further described below in conjunction with specific embodiments and drawings.
[0038] See Figures 3-7 As shown, a connector with a terminal balancing device is also an automotive connector, which includes: a plastic seat 2, a terminal 3, and a terminal balancing device. The terminal 3 is inserted into the plastic seat 2. The terminal balancing device is installed on the plastic seat 2 and limits the terminal 3 to balance the terminal 3, thereby ensuring that the terminal 3 is stably installed on the plastic seat 2 and can ensure the correct position of the terminal 3, thereby ensuring the correct position size requirements of the product.
[0039] Among them, combined Figures 3-5As shown, the terminal balancing device includes a limiting plate 4 mounted on a plastic base 2. The limiting plate 4 is provided with a through limiting hole 41, and is sleeved around the terminal 3 through the limiting hole 41 to limit the terminal 3, thereby balancing the terminal 3. Specifically, the assembly structure of the limiting plate 4 and the plastic base 2 is as follows: an elastic arm 42 is formed at the lower end of the limiting plate 4, and an undercut 421 is formed at the end of the elastic arm 42; a clamping hole 201 is provided at the lower end of the plastic base 2. During the process of inserting the limiting plate 4 into the plastic base 2, the elastic arm 42 passes through the first interval between two adjacent terminals 3 and extends into the clamping hole 201, and the undercut 421 is clamped outside the lower port of the clamping hole 201 to form a vertical locking. That is to say, in the present utility model, the limiting plate 4 uses the elastic arm 42 and the undercut 421 at its end to engage with the clamping hole 201 of the plastic base 2 to form a vertical locking. Its assembly structure is stable, ensuring that the limiting plate 4 is firmly locked on the plastic base 2 and is not easily separated therefrom; because the elastic arm 42 itself has a certain elastic deformation ability, when it passes through the clamping hole 201, it is an elastic interference, with less wear, not easily causing damage to the elastic arm 42 and the plastic base, and basically not generating plastic particle dust, thus meeting the product cleanliness and function requirements. It is worth mentioning that even if a small amount of plastic particle dust is generated, when the elastic arm 42 is assembled, it first passes through the first interval between two adjacent terminals 3 and then extends into the clamping hole 201, that is, even if a small amount of plastic particle dust is generated, it will not fall between the plastic base 2 and the terminal 3, and thus will not fall into the connector, and the product cleanliness can also meet the requirements.
[0040] Among them, as a preferred embodiment of this embodiment, in combination with Figures 3-5 As shown, the number of the elastic arms 42 is two, which are symmetrically distributed, and a second interval 420 is formed between them, forming a trident foot structure, so as to ensure that the structure formed after the limiting plate 4 and the plastic base 2 are assembled is more stable, so as to better realize the function of balancing the terminals.
[0041] In order to further improve the ortho-position degree, the following design is also made:
[0042] In combination with Figure 3 and Figure 5 As shown, at least one limiting protrusion 43 is further formed on the outer side of the limiting plate 4, and at least one first limiting groove 202 distributed from top to bottom is provided on the plastic base 2. The limiting protrusion 43 is pressed into the first limiting groove 202 from top to bottom to form a left-right direction limit or a front-back and left-right direction limit, thereby improving the ortho-position degree.
[0043] Among them, the limiting protrusion 43 is straight, and correspondingly, the first limiting groove 202 is also straight. When the limiting protrusion 43 is pressed into the first limiting groove 202 from top to bottom, it forms a left-right direction limit, thereby improving the ortho-position degree.
[0044] Alternatively, the limiting convex portion 43 is in a right-angled shape. Correspondingly, the first limiting groove 202 is also in a right-angled shape. When the limiting convex portion 43 is pressed into the first limiting groove 202 from top to bottom, it forms a limit in the front-back, left-right directions, thereby improving the centering degree and having a better limiting effect.
[0045] In this embodiment, in combination with Figures 3-6 as shown, the terminal 3 includes a first terminal 31 and a second terminal 32 that are spaced apart in two rows, and both the first terminal 31 and the second terminal 32 are in a bent right-angled shape.
[0046] Among them, the first terminal 31 includes a first main body portion 312 in a right-angled shape, and a first pin portion 313 and a first contact portion 311 that extend and are formed at the upper and lower ends of the first main body portion 312.
[0047] The second terminal 32 includes a second main body portion 322 in a right-angled shape, and a second pin portion 323 and a second contact portion 321 that extend and are formed at the upper and lower ends of the second main body portion 322.
[0048] After the first terminal 31 and the second terminal 32 are assembled with the plastic base 2, their specific structure is as follows: the first contact portion 311 of the first terminal 31 and the second contact portion 321 of the second terminal 32 are both inserted into and exposed in the docking groove 20 of the plastic base 2, and are used for docking and conducting with a mating connector inserted into the docking groove 20. The first main body portion 312 and the first pin portion 313 of the first terminal 31, and the second main body portion 322 and the second pin portion 323 of the second terminal 32 are all exposed outside the rear side of the plastic base 2, and are used for assembling and soldering conduction with the PCB. Among them, the first pin portion 313 and the second pin portion 323 both pass through the limiting holes 41 of the limiting plate 4 and are limited by the limiting plate 4 to achieve the purpose of balance.
[0049] In combination with Figure 5 as shown, a first convex plate 21 protruding backward is formed on the rear side of the plastic base 2. A step 203 is formed between the upper end surface of the first convex plate 21 and the rear side surface of the plastic base 2, and the limiting plate 4 is installed on the step 203.
[0050] In combination with Figure 3 and Figure 5 as shown, a plurality of support bars 211 are further formed at the front end of the first convex plate 21, and the lower end surface of the limiting plate 4 also abuts against the support bars 211, thereby improving the support effect.
[0051] In combination with Figures 3-5As shown, the rear side of the plastic seat 2 is further formed with a second protruding plate 22 protruding backwards, and the second protruding plate 22 is located at the lower side of the first protruding plate 21, and the clamping hole 201 is arranged on the second protruding plate 22. The clamping hole 201 is in a structure of being larger at the top and smaller at the bottom, and has an inclined guide surface in the middle. When the elastic arm 42 and the undercut 421 at the end thereof pass through the clamping hole 201, they contact with the guide surface to ensure that the elastic arm 42 and the undercut 421 at the end thereof can pass through the clamping hole 201 quickly and stably, thereby improving the assembly efficiency, and the guide surface also plays a guiding effect.
[0052] Combination Figures 4-5 As shown, the front end of the first convex plate 21 is also provided with a second limiting groove 212, and the first main body 312 is pressed into the second limiting groove 212, so as to further balance the first terminal and enable the first terminal to be more stably installed on the plastic seat; Figure 3 and Figure 5 As shown, a third limiting groove 221 is further provided at the front end of the second protruding plate 22, and the second main body portion 322 is pressed into the third limiting groove 221. A third interval is formed between the second main body portion 322 and the first main body portion 312, so as to further balance the second terminal and enable the second terminal to be more stably installed on the plastic seat.
[0053] Combination Figure 6 As shown, the inner wall of the docking slot 20 is provided with a plurality of fool-proof ribs 204 , which play a fool-proof role and can effectively prevent the mating connector inserted into the docking slot 20 from being inserted upside down.
[0054] In summary, the limit plate 4 in the utility model adopts the elastic arm 42 and the undercut 421 at the end thereof to engage with the card hole 201 of the plastic seat 2 to form a vertical locking, and its assembly structure is stable, ensuring that the limit plate 4 is firmly locked on the plastic seat 2, and it is not easy to separate therefrom; because the elastic arm 42 itself has a certain elastic deformation ability, it is elastic interference when passing through the card hole 201, and it has less wear and tear, and it is not easy to cause damage to the elastic arm 42 and the plastic seat, and it is basically not / not easy to cause plastic particle dust to be generated, thereby meeting the product cleanliness and functional requirements. It is worth mentioning that even if a trace amount of plastic particle dust is generated, the elastic arm 42 will first pass through the first interval between the two adjacent terminals 3 during reassembly, and then extend into the card hole 201, that is, a trace amount of plastic particle dust will not fall between the plastic seat 2 and the terminal 3, and will not fall into the inside of the connector, and the product cleanliness can also meet the requirements.
[0055] Of course, the above description is only a specific embodiment of the present invention and is not intended to limit the scope of implementation of the present invention. Any equivalent changes or modifications made according to the structure, characteristics and principles described in the patent application scope of the present invention should be included in the patent application scope of the present invention.
Claims
1. A connector with a terminal balancing device, comprising: A plastic housing; Terminals inserted into the plastic housing; A terminal balancing device, which includes a limiting plate installed on the plastic housing. The limiting plate is provided with a through limiting hole and is sleeved around the terminals through the limiting hole to limit the terminals, thereby balancing the terminals; It is characterized in that: an elastic arm is formed at the lower end of the limiting plate, and an inverted buckle is formed at the end of the elastic arm; a clamping hole is provided at the lower end of the plastic housing. During the process of installing the limiting plate into the plastic housing, the elastic arm passes through the first interval between two adjacent terminals and extends into the clamping hole, and the inverted buckle is clamped outside the lower port of the clamping hole to form a vertical locking.
2. The connector with a terminal balancing device according to claim 1, wherein: The number of the elastic arms is two, which are symmetrically distributed, and a second interval is formed between them, forming a harpoon foot structure.
3. The connector with a terminal balancing device according to claim 1, characterized in that: At least one limiting convex portion is further formed on the outer side of the limiting plate, and at least one first limiting groove distributed from top to bottom is provided on the plastic housing. The limiting convex portion is pressed into the first limiting groove from top to bottom to form a left-right direction limit or a front-back and left-right direction limit.
4. The connector with a terminal balancing device according to claim 3, wherein: The limiting convex portion is straight or right-angled, and correspondingly, the first limiting groove is also straight or right-angled.
5. The connector with a terminal balancing device according to any one of claims 1-4, characterized in that: The terminals include first terminals and second terminals arranged in two rows at intervals. The first contact portions of the first terminals and the second contact portions of the second terminals are both inserted into and exposed in the docking groove of the plastic housing. The first main body portions and the first pin portions of the first terminals, and the second main body portions and the second pin portions of the second terminals are all exposed outside the rear side of the plastic housing. The first pin portions and the second pin portions are both passed through the limiting holes of the limiting plate.
6. The connector with a terminal balancing device according to claim 5, wherein: A first convex plate protruding backward is formed on the rear side of the plastic housing. A step is formed between the upper end surface of the first convex plate and the rear side surface of the plastic housing. The limiting plate is installed on this step.
7. The connector with a terminal balancing device according to claim 6, characterized in that: Several support bars are further formed at the front end of the first convex plate, and the lower end surface of the limiting plate also abuts against the support bars.
8. The connector with a terminal balancing device according to claim 6, characterized in that: A second convex plate protruding backward is further formed on the rear side of the plastic housing. The second convex plate is located below the first convex plate, and the clamping hole is provided on this second convex plate.
9. The connector with a terminal balancing device according to claim 8, wherein: A second limiting groove is further provided at the front end of the first convex plate, and the first main body portion is pressed into this second limiting groove; a third limiting groove is further provided at the front end of the second convex plate, and the second main body portion is pressed into this third limiting groove. A third interval is formed between the second main body portion and the first main body portion.
10. The connector with a terminal balancing device according to claim 5, characterized in that: Several anti-fooling convex ribs are provided on the inner wall of the docking groove.