DC power socket

Abstract

The utility model discloses a DC power socket, which relates to the technical field of sockets and comprises a plastic body, a blind hole is formed on the left side of the plastic body, a DC seat center pin is fixedly mounted in the middle of the blind hole, and an elastic sheet pin is arranged on the bottom side of the blind hole. The DC seat center pin is electrically connected and provided with a fixed sheet pin, a plastic plug is arranged between the fixed sheet pin and the elastic sheet pin, a potting groove is formed in the right side of the plastic body, sealant is arranged in the potting groove, and the right sides of the DC seat center pin and the plastic plug and the potting groove are filled with the sealant; compared with the prior art, the stator pin and the spring pin are separated by the plastic plug, the sealant is filled in the potting groove after the installation is completed, and the sealant does not enter the elastic part of the spring pin after the potting is completed, so that the normal work of the spring pin is prevented from being influenced, and the service life of the motor is prolonged. And meanwhile, the effect of further fixing the elastic sheet pin and the fixed sheet pin can be achieved, the service life is ensured, and the waterproof grade of IP68 can be achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of sockets, in particular to a DC power socket. Background Art

[0002] A DC socket is a socket that matches a power supply dedicated to a computer monitor. It is composed of a horizontal socket, a vertical socket, an insulating base, a fork-shaped contact spring, and a directional keyway. Two fork-shaped contact springs are positioned at the center of the base, arranged vertically and horizontally and not connected to each other. One end of the fork-shaped contact spring is a wiring port, exposed on the top surface of the base cylinder, for connecting the input power cord or cable. The other end of the fork-shaped contact spring is composed of two elastic arms interconnected by the base, which are set in the insulating base socket in the direction of DC plug insertion, for the computer monitor to work normally. The existing DC sockets are all produced with an integrated shell structure, which is inconvenient to assemble, and is prone to loosening or poor contact of the negative pole after long-term use, and has poor waterproof effect.

[0003] The prior art (announcement number: CN213692466U, announcement date: 2021.07.13) discloses a waterproof DC socket, which is easy to assemble by splitting the mounting shell into a shell and a back cover, and by providing a slot on the back cover that cooperates with the negative contact spring sheet, the fixed contact spring sheet and the center pin; it is also doubly elastically clamped by the negative contact spring sheet and the fixed contact spring sheet, and the fixed contact spring sheet can also be used as a negative pole, so that the DC socket can be tighter when used and is not easily unusable due to poor contact of the negative pole. By arranging a waterproof ring on the top of the shell, when the DC plug is inserted, the waterproof ring is squeezed around the plug to increase the sealing, and by applying a layer of waterproof glue on the bottom of the shell, liquid cannot enter from the back, thereby achieving a better waterproof effect.

[0004] However, in the above scheme, only a waterproof ring is provided, and the waterproof effect is achieved by extrusion. This waterproof method is prone to loosening when a collision occurs, which will seriously affect its waterproof effect. Moreover, it is difficult to achieve the IP68 waterproof level by only using a waterproof ring.

[0005] In addition, in the prior art, the middle of the DC socket is generally the positive pole of the power supply, and the side inside the DC socket is generally the negative pole of the power supply. When the plug is inserted into the DC socket, the spring pin at the negative pole of the power supply will be deformed, and water seepage will occur at this time. The waterproof scheme in the prior art cannot prevent water seepage at this position. Therefore, it is necessary to design a DC power socket that uses potting and filling to achieve effective waterproofing. Utility Model Content

[0006] In order to overcome the above-mentioned shortcomings, the utility model provides a technical solution that can solve the above-mentioned problems.

[0007] A DC power socket comprises a plastic body, a blind hole is formed on the left side of the plastic body, a DC socket center pin is fixedly installed in the middle of the blind hole, and a spring pin is arranged on the bottom side of the blind hole; a fixed pin is electrically connected and installed on the DC socket center pin, a plastic plug is arranged between the fixed pin and the spring pin, a potting groove is formed on the right side of the plastic body, a sealant is arranged in the potting groove, and the sealant is filled in the DC socket center pin, the right side of the plastic plug and the potting groove.

[0008] Furthermore: a groove is formed on the bottom side of the blind hole, a spring-loaded accommodating cavity is formed in the plastic body, the spring-loaded accommodating cavity is located below the blind hole, the groove is integrally formed and connected between the blind hole and the spring-loaded accommodating cavity, the spring-loaded foot is installed in the spring-loaded accommodating cavity with a clearance, and the plastic plug is plugged in the spring-loaded accommodating cavity.

[0009] Furthermore: a shift plate is formed on the left side of the plastic plug, the shift plate presses the bottom edge of the spring foot into the spring accommodating cavity, and the front and rear ends of the shift plate are plugged into the spring accommodating cavity.

[0010] Furthermore: a potting groove is formed between the bottom side of the plastic plug and the shift plate.

[0011] Further: both the front and rear sides of the spring foot are formed with plugging edges, and both the front and rear sides of the spring accommodating cavity are formed with plugging grooves, and the plugging edges are installed in the plugging grooves with one-to-one corresponding clearances.

[0012] Furthermore: the bottom ends of the spring leg and the fixed leg are bent to form a connection terminal, and the corners of the connection terminal and the spring leg, and the corners of the connection terminal and the fixed leg are respectively integrally formed with a glue injection hole.

[0013] Further: a boss is formed at the right end of the center needle of the DC seat, the left end of the center needle of the DC seat is inserted into the blind hole, a stepped groove is formed on the right side of the potting groove, and the boss is installed in the stepped groove with clearance fit.

[0014] Further: a tight-fitting step is formed between the center needle of the DC seat and the boss, a fixing hole is formed at the top of the fixed piece foot, the fixing hole is sleeved and installed on the center needle of the DC seat, and the fixing hole is tightly installed on the tight-fitting step.

[0015] Furthermore: one or more glue-filled key grooves are formed in the stepped groove.

[0016] Further: the sealant adopts epoxy resin glue.

[0017] Compared with the prior art, the beneficial effects of the utility model are:

[0018] 1. The fixed foot and the spring foot are separated by a plastic plug. After installation, the sealant is used to fill the potting groove. After potting, the sealant will not enter the elastic part of the spring foot, thereby preventing the normal operation of the spring foot from being affected;

[0019] 2. The right side of the plastic body is filled with sealant, which has a very good waterproof effect after the sealant is dried. At the same time, it can further fix the spring foot and the fixed foot to ensure its service life and reach the IP68 waterproof level;

[0020] 3. The waterproof effect will not be affected when the DC seat collides.

[0021] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] 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 labor.

[0023] Figure 1 It is a structural schematic diagram of the utility model;

[0024] Figure 2 This is a schematic diagram of the structure of the utility model before the sealant is poured;

[0025] Figure 3 yes Figure 2 Schematic diagram of the half-section structure;

[0026] Figure 4 yes Figure 3 A schematic diagram of the structure from another perspective;

[0027] Figure 5 It is a schematic diagram of the explosion structure of the utility model;

[0028] Figure 6 It is a schematic diagram of the explosion structure of the utility model from another perspective;

[0029] Figure 7 It is a schematic diagram of the explosion structure of the utility model from another viewing angle.

[0030] As shown in the figure: 1. Plastic body; 2. Blind hole; 3. Center pin of DC socket; 4. Spring clip foot; 5. Fixed piece foot; 6. Plastic plug; 7. Potting groove; 8. Sealant; 9. Slot; 10. Spring clip accommodating cavity; 11. Shift plate; 12. Potting slot; 13. Sharp angle shape; 14. Wiring slot; 15. Plug edge; 16. Plug slot; 17. Wiring terminal; 18. Glue filling hole; 19. Welding hole; 20. Boss; 21. Step groove; 22. Tight fitting step; 23. Fixing hole; 24. Glue filling key slot. DETAILED DESCRIPTION

[0031] The technical solution of the present utility model will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present utility model, rather than all of the embodiments.

[0032] The components of the embodiments of the present invention generally described and shown in the drawings herein can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the present invention.

[0033] Based on the embodiments of the present utility model, all other embodiments obtained by ordinary technicians in the field without making any creative work shall fall within the scope of protection of the present utility model.

[0034] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0035] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0036] like Figure 1-7As shown, a DC power socket of the utility model comprises a plastic body 1, a blind hole 2 is formed on the left side of the plastic body 1, a DC socket center pin 3 is fixedly installed in the middle of the blind hole 2, and a spring pin 4 is arranged on the bottom side of the blind hole 2; a fixed pin 5 is electrically connected and installed on the DC socket center pin 3, a plastic plug 6 is arranged between the fixed pin 5 and the spring pin 4, a potting groove 7 is formed on the right side of the plastic body 1, a sealant 8 is arranged in the potting groove 7, and the sealant 8 is filled in the DC socket center pin 3 and the right side of the plastic plug 6 and the potting groove 7;

[0037] The principle is: the fixed piece foot 5 and the spring piece foot 4 are separated by a plastic plug 6, and after installation, the sealant 8 is used to fill the potting groove 7. After potting, the sealant 8 will not enter the elastic part of the spring piece foot 4, thereby preventing the normal operation of the spring piece foot 4 from being affected. After the positive pole of the power supply and the negative pole of the power supply are connected to the fixed piece foot 5 and the spring piece foot 4 respectively, it can be suitable for connection with a DC power adapter. Since the right side of the plastic body 1 is potted and filled with the sealant 8, it has a very good waterproof effect after the sealant 8 is dried and solidified, and can further fix the spring piece foot 4 and the fixed piece foot 5, thereby ensuring their service life and reaching the waterproof level of IP68.

[0038] Furthermore: a groove 9 is formed on the bottom side of the blind hole 2, and a spring-loaded accommodating cavity 10 is formed in the plastic body 1. The spring-loaded accommodating cavity 10 is located below the blind hole 2. The groove 9 is integrally formed and connected between the blind hole 2 and the spring-loaded accommodating cavity 10. The spring-loaded foot 4 is installed in the spring-loaded accommodating cavity 10 with a clearance fit, and the plastic plug 6 is plugged in the spring-loaded accommodating cavity 10. The plastic plug 6 can block the sealant 8 to prevent the sealant 8 from flowing to the elastic part of the spring-loaded foot 4, thereby ensuring that the elastic foot can work normally.

[0039] Furthermore: a shift plate 11 is formed on the left side of the plastic plug 6, and the shift plate 11 presses the bottom edge of the spring foot 4 into the spring accommodating cavity 10, and the front and rear ends of the shift plate 11 are plugged into the spring accommodating cavity 10; the plastic plug 6 can block the flow of the sealant 8 through the shift plate 11, thereby effectively preventing the sealant 8 from flowing to the elastic part of the spring foot 4 and affecting its normal operation.

[0040] Furthermore, a potting groove 12 is formed between the bottom side of the plastic plug 6 and the shift plate 11; the sealant 8 can fill the bottom of the spring foot 4 through the potting groove 12, thereby achieving an effective waterproof technical effect.

[0041] Furthermore: the left end of the spring leg 4 is bent upward into an acute angle shape 13, and the left end of the spring leg 4 is input into the bottom side of the blind hole 2 through the slot 9; when the plug is inserted into the blind hole 2, the spring leg 4 will abut against the outside of the plug through the elastic part of the acute angle shape 13 to form a stable electrical connection, thereby ensuring the stability of the power supply.

[0042] Furthermore: a wiring groove 14 is formed on the bottom side of the plastic body 1, and the plastic plug 6 is plugged into the spring accommodating cavity 10 and the wiring groove 14; the setting of the wiring groove 14 can facilitate the output of the spring foot 4 and the fixed foot 5, and at the same time, the sealant 8 can effectively fill the matching gaps at various locations after potting, thereby achieving an effective waterproof technical effect.

[0043] Furthermore: both the front and rear sides of the spring foot 4 are formed with plug-in edges 15, and both the front and rear sides of the spring accommodating cavity 10 are formed with plug-in grooves 16, and the plug-in edges 15 are installed in the plug-in grooves 16 with a one-to-one corresponding clearance fit; it can facilitate the installation and fixation of the spring foot 4.

[0044] Furthermore: the bottom ends of the spring leg 4 and the fixed leg 5 are bent to form a terminal 17, and the corners of the terminal 17 and the spring leg 4, and the corners of the terminal 17 and the fixed leg 5 are respectively integrally formed with a glue injection hole 18; when the sealant 8 is injected, the glue injection hole 18 can be used to fill in each matching gap, thereby achieving effective waterproofing and reaching the IP68 waterproof level.

[0045] Furthermore, welding holes 19 are formed on the connection terminals 17 of the stator leg 5 and the spring leg 4 ; the provision of the welding holes 19 can enhance the welding effect of the stator leg 5 and the spring leg 4 .

[0046] Furthermore: a boss 20 is formed at the right end of the center needle 3 of the DC socket, the left end of the center needle 3 of the DC socket is inserted into the blind hole 2, a stepped groove 21 is formed on the right side of the potting groove 7, and the boss 20 is installed in the stepped groove 21 with a clearance fit; when the plug is pulled out of the blind hole 2, the setting of the boss 20 can effectively prevent the center needle 3 of the DC socket from being pulled out of the blind hole 2.

[0047] Furthermore: a tight-fitting step 22 is formed between the center needle 3 of the DC socket and the boss 20, a fixing hole 23 is formed at the top of the stator foot 5, the fixing hole 23 is sleeved and installed on the center needle 3 of the DC socket, and the fixing hole 23 is tightly installed on the tight-fitting step 22; the tight-fitting installation can ensure a stable electrical connection between the center needle 3 of the DC socket and the stator foot 5, and at the same time, when the sealant 8 is poured, it will penetrate into the fitting gap between the stator foot 5 and the center needle 3 of the DC socket through the fixing hole 23, thereby achieving an effective waterproof effect.

[0048] Furthermore, one or more glue-potting key slots 24 are formed in the stepped groove 21 ; the sealant 8 can be filled into the glue-potting key slots 24 , thereby effectively filling the gap between the DC socket center pin 3 and the plastic body 1 , thereby achieving effective waterproofing.

[0049] Furthermore, the sealant 8 is made of epoxy resin glue, and effective potting and filling can be achieved by dispensing.

[0050] This embodiment does not impose any formal restrictions on the shape, material, structure, etc. of the utility model. Any simple modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the utility model are within the protection scope of the technical solution of the utility model.

Claims

1. A DC power socket, comprising a plastic body, a blind hole formed on the left side of the plastic body, a DC socket center pin fixedly installed in the middle of the blind hole, and a spring foot arranged on the bottom side of the blind hole; characterized in that: A fixed pin is electrically connected to the center pin of the DC socket, a plastic plug is arranged between the fixed pin and the spring pin, a potting groove is formed on the right side of the plastic body, and a sealant is arranged in the potting groove. The sealant is filled in the center pin of the DC socket, the right side of the plastic plug and the potting groove.

2. A DC power socket according to claim 1, characterized in that: A groove is formed on the bottom side of the blind hole, and a spring-piece accommodating cavity is formed in the plastic body. The spring-piece accommodating cavity is located below the blind hole. The groove is integrally formed and connected between the blind hole and the spring-piece accommodating cavity. The spring-piece foot is installed in the spring-piece accommodating cavity with a clearance fit, and the plastic plug is plugged in the spring-piece accommodating cavity.

3. A DC power socket according to claim 2, characterized in that: A shift plate is formed on the left side of the plastic plug, and the shift plate presses the bottom edge of the spring foot into the spring accommodating cavity, and the front and rear ends of the shift plate are plugged into the spring accommodating cavity.

4. A DC power socket according to claim 3, characterized in that: A potting groove is formed between the bottom side of the plastic plug and the shift plate.

5. A DC power socket according to claim 2, characterized in that: Both the front and rear sides of the spring foot are formed with plugging edges, and both the front and rear sides of the spring accommodating cavity are formed with plugging grooves, and the plugging edges are installed in the plugging grooves with one-to-one corresponding clearances.

6. A DC power socket according to claim 4, characterized in that: The bottom ends of the spring leg and the fixed leg are bent to form a connection terminal, and the corners of the connection terminal and the spring leg, and the corners of the connection terminal and the fixed leg are respectively integrally formed with glue injection holes.

7. A DC power socket according to claim 1, characterized in that: A boss is formed at the right end of the center needle of the DC seat, and the left end of the center needle of the DC seat is inserted into the blind hole. A stepped groove is formed on the right side of the potting groove, and the boss is installed in the stepped groove with clearance fit.

8. A DC power socket according to claim 7, characterized in that: A tight-fitting step is formed between the center pin of the DC seat and the boss, a fixing hole is formed on the top of the fixed piece foot, the fixing hole is sleeved and installed on the center pin of the DC seat, and the fixing hole is tightly fitted on the tight-fitting step.

9. A DC power socket according to claim 7, characterized in that: One or more glue-filled keyways are formed in the stepped groove.

10. A DC power socket according to any one of claims 1 to 9, characterized in that: The sealant is epoxy resin glue.

Images