CN215379341U

CN215379341U - PCB board carries fuse structure

Info

Publication number: CN215379341U
Application number: CN202120846032.9U
Authority: CN
Inventors: 李强; 沈安虎
Original assignee: Baoxing Intelligent Technology Shanghai Co ltd
Current assignee: Baoxing Intelligent Technology Shanghai Co ltd
Priority date: 2021-04-23
Filing date: 2021-04-23
Publication date: 2021-12-31
Anticipated expiration: 2031-04-23

Abstract

The utility model discloses a PCB board fuse technical field, in particular to a PCB board fuse structure, which adopts the technical scheme that: the PCB protection wire plug-in connector comprises a PCB, a connecting terminal, a wire buckle, an inner hexagonal M5x14 screw, an M gasket, a pressing sheet, a protection wire plug-in component, a PCB small pin, a bottom shell and a flip cover, wherein the bottom shell is inserted in the inner wall of the PCB, the connecting terminal is clamped in the inner wall of the bottom shell, the PCB small pin is arranged on one side of the connecting terminal, the protection wire plug-in component is inserted in the PCB small pin, and the bottom shell is movably connected with the flip cover through a pin shaft, and the PCB protection wire plug-in connector has the beneficial effects that: the installation is carried out by utilizing the clamping mode, the installation and the disassembly are fast, the connection is tight and not easy to loose, the cable is tightly clamped by utilizing the wire buckle and the pressing sheet, the wiring is convenient, the joint is not easy to loose, the safety is enhanced, the small pins of the PCB and the wiring terminals are prevented from being exposed outside, the safety is increased, the flip cover can be conveniently rotated, and the plug-in connection and the pull-out of the protection wire plug-in unit are convenient.

Description

PCB board carries fuse structure

Technical Field

The utility model relates to the technical field of PCB board fuses, in particular to a PCB board fuse structure.

Background

The specifications of the PCB fuse holders are various, the materials are different, and the replacement frequency of the PCB fuse holders in the current market is higher; due to the diversity and complexity of the stations where the fuse wire is located, a PCB fuse wire design model which is generally required to have strong pressure resistance performance and is also called as a current fuse wire is generally adopted by the PCB equipment, and the IEC127 standard defines the PCB fuse wire design model as a fuse link; it mainly plays a role in overload protection; when current flows through the conductor, the conductor will generate heat because of certain resistance of the conductor; and the calorific value follows this formula: q ═ 0.24I2 RT; where Q is the heating value, 0.24 is a constant, I is the current flowing through the conductor, R is the resistance of the conductor, and T is the time for the current to flow through the conductor.

The existing PCB board carries a fuse structure, the wiring is inconvenient, and the wiring is easy to loosen; the fuse position object protection device has the advantages that when a human hand inserts the protection wire plug-in into the PCB small pin, the human hand easily touches the protection wire plug-in or the PCB small pin, and therefore danger occurs.

Therefore, the utility model discloses a PCB board carries fuse structure is very necessary.

SUMMERY OF THE UTILITY MODEL

Therefore, the utility model provides a fuse structure carried by a PCB board, which fixes a wiring by arranging a wire buckle, a pressing sheet and an inner hexagonal M5x14 screw, thereby avoiding the loosening of the wiring; and set up the drain pan and live the parcel of protection silk plug-in components or the little pin of PCB board, through flip that overturns, the plug of convenient protection silk plug-in components has solved current PCB board and has carried the fuse structure, and the inconvenient easy not hard up of wiring, and the staff easily touches protection silk plug-in components or the little pin of PCB board to take place dangerous problem.

In order to achieve the above purpose, the utility model provides the following technical scheme:

the utility model provides a PCB board carries fuse structure, includes the PCB board, the drain pan of pegging graft of PCB inboard wall, drain pan inner wall joint binding post, binding post one side is equipped with the little pin of PCB board, the little pin grafting protection silk plug-in components of PCB board, the drain pan is through round pin axle swing joint flip, binding post inner wall threaded connection allen M5x14 screw, allen M5x14 screw one end is located in binding post's the inner chamber, be equipped with the line in the binding post inner chamber and detain and the preforming, allen M5x14 screw passes the line and detains the back threaded connection preforming, flip top integrated into one piece is equipped with the plugboard, plugboard one end integrated into one piece is equipped with the cutting.

Preferably, the PCB board small pins are provided with two groups, and the PCB board small pins are matched with the protection wire plug-in.

Preferably, a first jack is formed in the PCB, the bottom end of the small pin of the PCB is integrally formed with an inserting column, and the PCB is inserted into the small pin of the PCB through the first jack.

Preferably, an M gasket is sleeved on the outer wall of the inner hexagonal M5x14 screw, the bottom end of the M gasket is abutted to the wiring terminal, and the inner hexagonal M5x14 screw, the wire buckle and the pressing sheet are all made of copper materials.

Preferably, the PCB board is provided with a first jack and a second jack, the bottom end of the wiring terminal is provided with an inserted bar, and the inner wall of the second jack is inserted into the inserted bar.

Preferably, a first clamping groove is formed in the PCB, a first clamping head is arranged at the bottom end of the bottom shell in an integrated forming mode, and the first clamping groove is matched with the first clamping head.

Preferably, two ends of the wiring terminal are provided with a second clamping head, the bottom shell is provided with a second clamping groove, and the second clamping head is matched with the second clamping groove.

Preferably, the bottom shell is provided with an insertion groove and an arc-shaped groove, the size of the insertion groove is larger than that of the protection wire plug-in unit, and two ends of the bottom shell are provided with heat dissipation windows.

Preferably, a third clamping groove is formed in one end of the bottom shell, the third clamping groove is matched with the inserting strip, a first through hole is formed in the bottom shell, an arc-shaped strip is integrally formed in one end of the flip cover, a second through hole is formed in the arc-shaped strip, the first through hole and the second through hole are the same in size, an opening is formed in one end of the bottom shell, and the width of the opening is larger than that of the wire buckle.

Preferably, flip one end integrated into one piece is equipped with the arch, protruding and arc wall's size phase-match.

The utility model has the beneficial effects that:

1. two second jacks, two first clamping grooves and four first jacks are formed in the PCB, and each two first jacks are inserted into an inserting column below one PCB small pin, so that the PCB small pin is installed on the PCB; the two second jacks are respectively spliced with the two insertion rods at the bottom ends of the wiring terminals, so that the wiring terminals are installed on the PCB; the bottom shell is installed on the PCB by utilizing the two groups of first clamping grooves to be clamped with the first clamping heads respectively, and when the first clamping grooves clamp the first clamping heads, the second clamping heads are clamped into the second clamping grooves, so that the bottom shell is installed on the PCB, and meanwhile, the connection terminal is attached to the bottom shell; the utility model has simple structure, is installed by utilizing a clamping mode, has high installation and disassembly speed, is tightly connected and is not easy to loosen;

2. at the moment, under the action of the opening, the wire buckle and the pressing sheet are exposed outside; the flip cover is movably connected with the bottom shell by the first through hole and the second through hole; the cable is peeled and then placed between the wire buckle and the pressing sheet from the opening, and the inner hexagonal M5x14 screw is rotated, so that the pressing sheet is driven to move upwards, the cable is clamped by the wire buckle and the pressing sheet, the connection is convenient, the connector is not easy to loosen, and the safety is enhanced;

3. inserting the protective wire plug-in into the insertion groove until the protective wire plug-in is inserted into the small pins of the PCB; the flip cover is rotated until the insert on the flip cover is inserted into the third clamping groove on the bottom shell, and the protrusion on the flip cover is inserted into the arc-shaped groove of the bottom shell at the moment, so that the flip cover can be used for sealing and wrapping the small pins and the wiring terminals of the PCB, the small pins and the wiring terminals of the PCB are prevented from being exposed outside, the safety is improved, the flip cover can be conveniently rotated, and the plug-in connector of the protection wire is convenient to plug.

Drawings

FIG. 1 is a schematic view of the present invention showing the upper protective cover opened;

FIG. 2 is a schematic diagram of a pull-out fuse according to the present invention;

FIG. 3 is a schematic view of the present invention with the flip cover removed and the bottom case pulled out;

fig. 4 is a schematic structural diagram of the flip cover provided by the present invention.

In the figure: the PCB comprises a PCB 1, a second jack 11, a first clamping groove 12, a first jack 13, a wiring terminal 2, an insertion rod 21, a second clamping head 22, a wire buckle 3, an inner hexagonal M5x14 screw 4, an M5 gasket 5, a pressing sheet 6, a protective wire plug-in 7, a PCB small pin 8, an insertion column 81, a bottom shell 9, a first through hole 91, an insertion groove 92, an arc-shaped groove 93, a second clamping groove 94, a third clamping groove 95, a heat dissipation window 96, a first clamping head 97, an opening 98, a flip cover 10, a protrusion 101, an arc-shaped strip 102, a second through hole 103, an insertion plate 104 and an insertion strip 1041.

Detailed Description

The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are described herein for the purpose of illustration and explanation and not limitation.

Referring to the attached drawings 1-4 of the specification, the fuse structure carried on the PCB board of the embodiment includes a PCB board 1, a bottom case 9 is inserted into an inner wall of the PCB board 1, a wiring terminal 2 is clamped into an inner wall of the bottom case 9, a small pin 8 of the PCB board is arranged on one side of the wiring terminal 2, the small pin 8 of the PCB board is inserted into a protection wire plug-in 7, the bottom case 9 is movably connected with a flip cover 10 through a pin shaft, an inner wall of the wiring terminal 2 is in threaded connection with an inner hexagon M5x14 screw 4, one end of the inner hexagon M5x14 screw 4 is located in an inner cavity of the wiring terminal 2, a wire buckle 3 and a pressing sheet 6 are arranged in the inner cavity of the wiring terminal 2, the inner hexagon M5x14 screw 4 penetrates through the wire buckle 3 and then is in threaded connection with the pressing sheet 6, an inserting board 104 is integrally formed at the top end of the flip cover 10, and an inserting strip 1041 is integrally formed at one end of the inserting board 104.

Furthermore, two groups of PCB small pins 8 are arranged, and the PCB small pins 8 are matched with the protection wire plug-in 7; the two groups of PCB small pins 8 are used for being inserted into the protective wire plug-in unit 7, so that the two groups of PCB small pins 8 are electrically connected; the protective wire plug-in 7 is used for preventing short circuit of the circuit, protecting the circuit and avoiding burning the PCB 1.

Furthermore, a first jack 13 is formed in the PCB 1, an insertion column 81 is integrally formed at the bottom end of the small pin 8 of the PCB, and the PCB 1 is inserted into the small pin 8 of the PCB through the first jack 13; the function of the inserting column 81 is to insert into the inner wall of the first inserting hole 13, so as to mount the small pin 8 of the PCB on the PCB 1.

Furthermore, an M5 gasket 5 is sleeved on the outer wall of the inner hexagon M5x14 screw 4, the bottom end of the M5 gasket 5 abuts against the wiring terminal 2, and the inner hexagon M5x14 screw 4, the wire buckle 3 and the pressing sheet 6 are all made of copper materials; the M5 gasket 5 is used for preventing the inner hexagon M5x14 from loosening and preventing the inner hexagon M5x14 from contacting the wiring terminal 2, so that the insulation protection effect is achieved; the inner hexagonal M5x14 screw 4, the wire button 3 and the pressing sheet 6 are made of copper materials, so that the conductivity is enhanced.

Furthermore, a first jack 13 is formed in the PCB 1, a second jack 11 is formed in the PCB, an insertion rod 21 is arranged at the bottom end of the wiring terminal 2, and the insertion rod 21 is inserted into the inner wall of the second jack 11; the second insertion hole 11 functions to be inserted into the insertion rod 21, thereby mounting the connection terminal 2 to the PCB board 1.

Furthermore, a first clamping groove 12 is formed in the PCB board 1, a first clamping head 97 is integrally formed at the bottom end of the bottom shell 9, and the first clamping groove 12 is matched with the first clamping head 97; the first slot 12 is used for clamping with the first clamp 97, so that the bottom shell 9 is installed on the PCB board 1.

Furthermore, two ends of the wiring terminal 2 are provided with a second clamping head 22, the bottom case 9 is provided with a second clamping groove 94, and the second clamping head 22 is matched with the second clamping groove 94; the second clamping head 22 is used for clamping with the second clamping groove 94, so that the wiring terminal 2 is fixed with the bottom shell 9.

Furthermore, an insertion groove 92 and an arc-shaped groove 93 are formed in the bottom shell 9, the size of the insertion groove 92 is larger than that of the protection wire plug-in unit 7, and heat dissipation windows 96 are formed in two ends of the bottom shell 9; the arc-shaped groove 93 is used for being matched with the bulge 101, so that the flip cover 10 is tightly attached to the bottom shell 9, the PCB small pins 8 and the wiring terminals 2 in the inner cavity of the bottom shell 9 are hermetically wrapped, the safety is enhanced, and the PCB small pins 8 and the wiring terminals are prevented from being exposed.

Furthermore, one end of the bottom shell 9 is provided with a third clamping groove 95, and the third clamping groove 95 is matched with the insert 1041; the third clamping groove 95 is used for clamping with the plug board 104, so that the flip cover 10 clamps the bottom case 9, the small lead pins 8 of the PCB and the wiring terminals 2 in the inner cavity of the bottom case 9 are sealed and wrapped, safety is improved, the small lead pins 8 of the PCB and the wiring terminals are prevented from being exposed, a first through hole 91 is formed in the bottom case 9, the first through hole 91 is used for connecting the bottom case 9 and the flip cover 10 together through a pin shaft, the flip cover 10 has a movable function, an arc-shaped strip 102 is integrally formed at one end of the flip cover 10, a second through hole 103 is formed in the arc-shaped strip 102, the first through hole 91 and the second through hole 103 are the same in size, an opening 98 is formed in one end of the bottom case 9, the opening 98 is used for facilitating wiring, the wire buckle 3 and the pressing sheet 6 are exposed, so that wiring is facilitated, and the width of the opening 98 is larger than the width of the wire buckle 3.

Further, one end of the flip cover 10 is integrally formed with a protrusion 101, and the size of the protrusion 101 is matched with that of the arc-shaped slot 93.

The implementation scenario is specifically as follows: when the PCB pin installing structure is used, two second jacks 11, two clamping grooves I12 and four first jacks 13 are formed in the PCB 1, and each two first jacks 13 are inserted into the inserting column 81 below one PCB pin 8, so that the PCB pin 8 is installed on the PCB 1; the two second jacks 11 are respectively inserted into the two insertion rods 21 at the bottom ends of the wiring terminals 2, so that the wiring terminals 2 are installed on the PCB 1; the two groups of first clamping grooves 12 are respectively clamped with the first clamping heads 97, so that the bottom shell 9 is installed on the PCB 1, when the first clamping grooves 12 clamp the first clamping heads 97, the second clamping heads 22 are clamped into the second clamping grooves 94, the bottom shell 9 is installed on the PCB 1, and meanwhile, the wiring terminals 2 are attached to the bottom shell 9; at this time, under the action of the opening 98, the wire buckle 3 and the pressing sheet 6 are exposed outside; the flip cover 10 is movably connected with the bottom shell 9 by utilizing the first through hole 91 and the second through hole 103; the cable is peeled and then placed between the wire buckle 3 and the pressing sheet 6 from the opening 98, and the inner hexagonal M5x14 screw 4 is rotated, so that the pressing sheet 6 is driven to move upwards, and the cable is clamped by the wire buckle 3 and the pressing sheet 6; inserting the protective wire plug-in unit 7 into the insertion groove 92 until the protective wire plug-in unit is inserted into the PCB small pin 8, so as to communicate the circuit; the flip cover 10 is rotated until the insert 1041 on the flip cover 10 is inserted into the third 95 of the clamping groove on the bottom shell 9, and at this time, the protrusion 101 on the flip cover 10 is inserted into the arc-shaped groove 93 of the bottom shell 9, so that the flip cover 10 can seal and wrap the small pins 8 and the wiring terminals 2 of the PCB.

The above description is only a preferred embodiment of the present invention, and any person skilled in the art may modify the present invention or modify it into an equivalent technical solution by using the technical solution described above. Therefore, any simple modifications or equivalent substitutions made in accordance with the technical solution of the present invention are within the scope of the claims of the present invention.

Claims

1. A PCB board carries fuse structure, includes PCB board (1), its characterized in that: bottom shell (9) are pegged graft to PCB board (1) inner wall, bottom shell (9) inner wall joint binding post (2), binding post (2) one side is equipped with little pin (8) of PCB board, little pin (8) of PCB board are pegged graft protection silk plug-in components (7), bottom shell (9) are through round pin axle swing joint flip (10), hexagonal M5x14 screw (4) in binding post (2) inner wall threaded connection, hexagonal M5x14 screw (4) one end is located in the inner chamber of binding post (2), be equipped with line knot (3) and preforming (6) in binding post (2) inner chamber, hexagonal M5x14 screw (4) pass line knot (3) back threaded connection preforming (6), flip (10) top integrated into one piece is equipped with plugboard (104), plugboard (104) one end integrated into one piece is equipped with cutting strip (1041).

2. A PCB board mounted fuse structure of claim 1, wherein: the PCB board small pins (8) are provided with two groups, and the PCB board small pins (8) are matched with the protection wire plug-in (7).

3. A PCB board mounted fuse structure of claim 1, wherein: first jack (13) have been seted up on PCB board (1), little pin of PCB board (8) bottom integrated into one piece is equipped with inserts post (81), PCB board (1) is pegged graft through first jack (13) little pin of PCB board (8).

4. A PCB board mounted fuse structure of claim 1, wherein: the outer wall of the inner hexagonal M5x14 screw (4) is sleeved with an M5 gasket (5), the bottom end of the M5 gasket (5) is abutted to the wiring terminal (2), and the inner hexagonal M5x14 screw (4), the wire buckle (3) and the pressing sheet (6) are all made of copper materials.

5. A PCB board mounted fuse structure of claim 1, wherein: the PCB is characterized in that a second jack (11) is formed in a first jack (13) formed in the PCB (1), an insertion rod (21) is arranged at the bottom end of the wiring terminal (2), and the inner wall of the second jack (11) is inserted into the insertion rod (21).

6. A PCB board mounted fuse structure of claim 1, wherein: the PCB is characterized in that a first clamping groove (12) is formed in the PCB (1), a first clamping head (97) is integrally formed at the bottom end of the bottom shell (9), and the first clamping groove (12) is matched with the first clamping head (97).

7. A PCB board mounted fuse structure of claim 1, wherein: two ends of the wiring terminal (2) are provided with a second clamping head (22), the bottom shell (9) is provided with a second clamping groove (94), and the second clamping head (22) is matched with the second clamping groove (94).

8. A PCB board mounted fuse structure of claim 1, wherein: an inserting groove (92) and an arc-shaped groove (93) are formed in the bottom shell (9), the size of the inserting groove (92) is larger than that of the protection wire plug-in (7), and heat dissipation windows (96) are formed in two ends of the bottom shell (9).

9. A PCB board mounted fuse structure of claim 1, wherein: joint groove three (95) have been seted up to drain pan (9) one end, joint groove three (95) with cutting (1041) phase-match, through-hole one (91) have been seted up on drain pan (9), flip (10) one end integrated into one piece is equipped with arc strip (102), through-hole two (103) have been seted up on arc strip (102), the size of through-hole one (91) and through-hole two (103) is the same, drain pan (9) one end is equipped with opening (98), the width of opening (98) is greater than the width of line knot (3).

10. A PCB board mounted fuse structure of claim 1, wherein: flip (10) one end integrated into one piece is equipped with arch (101), the size phase-match of arch (101) and arc wall (93).