CN209981076U

CN209981076U - Digital band switch

Info

Publication number: CN209981076U
Application number: CN201921133703.6U
Authority: CN
Inventors: 陈宗旗
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-07-18
Filing date: 2019-07-18
Publication date: 2020-01-21
Anticipated expiration: 2029-07-18

Abstract

The utility model discloses a digital band switch, which comprises a shell, a bottom circuit board arranged at the bottom of the shell, an upper cover arranged on the shell, a rotating shaft which runs through the upper cover and the lower part of which extends into the shell, an upper circuit board which is arranged at the bottom of the rotating shaft and is linked with the rotating shaft, and a group of external contact heads which are fixed on the bottom circuit board and are contacted with the upper circuit board; the upper circuit board is provided with a conductive area and an insulating area, the bottom circuit board is provided with a group of mounting holes, the outer contact heads are arranged in the corresponding mounting holes, the tops of the outer contact heads are elastically connected with electric contact ends, the electric contact ends are in extrusion contact with the upper circuit board under the action of elastic force, and the electric contact ends axially displace; the outer contact is in a conducting output state when the outer contact is in contact with the conductive area, and the outer contact is in a disconnected state when the outer contact is in contact with the insulating area. The utility model discloses can improve the life of electrical apparatus greatly to reduce the maintenance cost of electrical apparatus.

Description

Digital band switch

Technical Field

The utility model relates to a circuit plug-in components technical field, in particular to digital band switch.

Background

A band switch, i.e. a kind of connector element of the circuit. For switching bands or for selecting different circuits. The number of knives, the number of bits and the number of layers of the insulating sheets can be divided according to the specification; according to the structure, the push-pull type, the rotary type, the push-key type, the piano-key type and the like are respectively adopted. The wave band switch is mainly used for various intelligent control devices such as numerical control processing equipment (processing center, lathe, grinding machine, milling machine and combined machine), medical equipment and the like. However, in the existing wave band switch, the blade in contact with the contact blade is easy to be permanently deformed after being used for a long time, so that the blade is separated from the contact blade, the contact blade cannot be conducted and output, the wave band switch needs to be repaired or replaced, and the maintenance cost is high when the wave band switch is used in a large scale.

Therefore, it is necessary to invent a band switch with a long service life to solve the above problems.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a digital band switch to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: a digital band switch comprises a shell, a bottom circuit board arranged at the bottom of the shell, an upper cover arranged on the shell, a rotating shaft penetrating through the upper cover and the lower part of the rotating shaft extending into the shell, an upper circuit board arranged at the bottom end of the rotating shaft and linked with the rotating shaft, and a group of outer contacts fixed on the bottom circuit board and contacted with the upper circuit board; the upper circuit board is provided with a conductive area and an insulating area, the bottom circuit board is provided with a group of mounting holes, the outer contact heads are arranged in the corresponding mounting holes, the tops of the outer contact heads are elastically connected with electric contact ends, the electric contact ends are in extrusion contact with the upper circuit board under the action of elastic force, and the electric contact ends axially displace; the outer contact is in a conducting output state when the outer contact is in contact with the conductive area, and the outer contact is in a disconnected state when the outer contact is in contact with the insulating area.

Preferably, the outer contact is a pogo pin.

Preferably, the external contact comprises a base, a shell installed on the base, a sliding rod arranged in the shell and sliding along the axial direction, and a spring arranged in the base and providing elasticity for the sliding rod, a limiting shoulder is formed between the inner wall of the base and the inner wall of the shell, a clamping ring matched with the limiting shoulder is arranged at the bottom of the sliding rod, the top end of the sliding rod extends out of the shell, and the top end of the sliding rod is an electric contact end; the shell is arranged in the corresponding mounting hole in a penetrating mode, and a limiting ring clamped at the bottom of the bottom circuit board is arranged at the bottom end of the base.

Preferably, the electric contact end of the external contact is round-head-shaped, and a gold plating layer is arranged on the surface of the external contact.

Preferably, the bottom circuit board is provided with a fixing frame for fixing the outer contact head.

Preferably, the group of outer contacts are linearly distributed.

Preferably, the inside gear positioning mechanism that is equipped with of upper cover, gear positioning mechanism include with the screens gear that the pivot linkage set up, form complex screens ball and provide the second spring of elasticity for the screens ball with the screens gear, the upper cover inboard is equipped with the mounting groove, the second spring sets up in the mounting groove, partly setting of screens ball in the mounting groove with second spring extrusion fit, another part setting of screens ball is outside at the mounting groove and cooperatees with the screens ball.

Preferably, the rotating shaft is provided with a supporting plate for fixing the upper circuit board, the edge of the supporting plate is provided with a positioning bulge, and the edge of the upper circuit board is provided with a clamping groove matched with the positioning bulge.

Preferably, the bottom of shell has seted up the ring channel, and the ring channel is embedded to be equipped with the sealing washer, just bottom circuit board and sealing washer extrusion fit when bottom circuit board and shell fixed connection.

The utility model discloses a technological effect and advantage: the utility model discloses the top elastic connection of outer contact head has the electric contact end, and the electric contact end sets up with upper portion circuit board extrusion contact and electric contact end along axial displacement under the spring action because upper portion circuit board and pivot linkage, just can drive the upper portion circuit board when consequently rotating the pivot and change, then the relative position change of conductive area on the circuit board of upper portion and outer contact head takes place to change. When the outer contact contacts with the conductive area on the upper circuit board, the outer contact is in a conducting output state, and when the outer contact contacts with the insulating area on the upper circuit board, the outer contact is in a disconnecting state. The contact head can only move slightly up and down in the using process, the service life of the electric contact end can be greatly prolonged, the service life of an electric appliance is further greatly prolonged, and therefore the maintenance cost of the electric appliance is reduced.

The utility model discloses an external contact is the pogo pin, and the pogo pin has the good characteristics of electric conductivity, can realize the function of circular telegram or switching on to it still has the high and high characteristics of durability of stability.

The utility model discloses external contact electric contact end is the button head shape, and when the upper portion circuit board rotated, external contact was more smooth and easy when sliding on the upper portion circuit board, avoided the card to die. The gold plating layer is arranged on the surface of the outer contact, so that the conductivity of the outer contact can be improved, the durability of the outer contact can be improved, and the service life of the outer contact is prolonged.

The utility model discloses be equipped with the mount that is used for fixed outer contact head on the circuit board of bottom, can prevent that external contact head from taking place to sway, play fixed effect.

The utility model discloses a set of outer contact is the straight line and distributes, and when the upper portion circuit board was rotatory, the condition of the conductive region contact on outer contact and the upper portion circuit board was inequality, and the design that outer contact straight line distributes is favorable to its and the linear change of the quantity of conductive region contact to convenient gear regulation.

The utility model discloses an at inside gear positioning mechanism that sets up of upper cover, gear positioning mechanism include with the pivot linkage set up the screens gear, form complex screens ball and provide the second spring of elasticity for the screens ball with the screens gear, the every angle that rotates a number of teeth of screens gear just changes a gear, and is very convenient to provide elasticity for the screens ball through the second spring, can promote the feeling when rotating the pivot.

The utility model discloses a set up the sealing washer between shell and the bottom circuit board, can prevent that dust, steam etc. from getting into the shell inside and producing the dirt with the contact of upper portion circuit board, and then increase unnecessary electrical impedance in the circuit, can make the circuit produce the trouble and arouse the circuit interrupt even when serious.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention;

fig. 2 is a cross-sectional view of the present invention;

FIG. 3 is an enlarged view of the portion A of FIG. 2 according to the present invention;

FIG. 4 is a schematic structural view of the upper circuit board of the present invention;

FIG. 5 is an exploded view of the whole of the present invention;

fig. 6 is a schematic structural diagram of the external contact of the present invention.

In the figure: 1. a housing; 2. a bottom circuit board; 3. an upper cover; 4. a rotating shaft; 5. a gear positioning mechanism; 6. a blocking gear; 7. a clamping ball; 8. a second spring; 9. mounting grooves; 10. a support plate; 11. an upper circuit board; 12. an outer contact; 13. an annular groove; 14. a seal ring; 15. mounting holes; 16. a limiting ring; 17. positioning the projection; 18. a card slot; 19. a conductive region; 20. an insulating region; 21. an electrical contact end; 22. a base; 23. a housing; 24. a slide bar; 25. a spring; 26. a limiting shoulder; 27. a snap ring; 28. a fixing frame.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

The utility model provides a digital wave band switch as shown in attached figure 1-6, including shell 1, install the bottom circuit board 2 in shell 1 bottom, install upper cover 3 on shell 1, run through upper cover 3 and the lower part and stretch into shell 1 inside pivot 4, set up in 4 bottoms of pivot and with the upper portion circuit board 11 that the 4 linkage of pivot set up and fix a set of outer contact 12 that contacts with upper portion circuit board 11 on bottom circuit board 2, pass through the bolt fastening between bottom circuit board 2 and the shell 1, pass through the bolt fastening between upper cover 3 and the shell 1. The upper circuit board 11 is provided with a conductive area 19 and an insulating area 20, the rotating shaft 4 is provided with a supporting plate 10 for fixing the upper circuit board 11, the edge of the supporting plate 10 is provided with a positioning bulge 17, and the edge of the upper circuit board 11 is provided with a clamping groove 18 matched with the positioning bulge 17; a group of mounting holes 15 are formed in the bottom circuit board 2, the outer contact heads 12 are arranged in the corresponding mounting holes 15, the tops of the outer contact heads 12 are elastically connected with electric contact ends 21, the electric contact ends 21 are in extrusion contact with the upper circuit board 11 under the action of elastic force, and the electric contact ends 21 axially displace; the external contact 12 is in a conducting output state when the external contact 12 is in contact with the conductive area 19, and the external contact 12 is in a disconnecting state when the external contact 12 is in contact with the insulating area 20.

As shown in fig. 2 and 3, the outer contact 12 is a pogo pin, which is a prior art product and is easily available in the market, and the pogo pin has a conducting function, most of which is in contact with the copper wall obliquely downward through the pin head, and the pogo pin spring bears a small amount of gravity, so that the inner wall of the copper sleeve is required to be smooth. Has the characteristics of corrosion resistance, high stability, high durability and the like. The spring needle is a spring type probe formed by using a riveting precision instrument after three parts of a needle shaft, a spring and a needle tube are aligned, and the inner structure of the spring needle is a precise spring structure. The electric contact end 21 of the outer contact head 12 is round-head-shaped, and when the upper circuit board 11 rotates, the outer contact head 12 slides on the upper circuit board 11 more smoothly, so that the clamping is avoided. And the surface of the external contact 12 is provided with a gold plating layer, so that the anti-corrosion function, the mechanical property, the electrical property and the like of the external contact can be better improved. A set of outer contact 12 be the straight line and distribute, when upper portion circuit board 11 rotated, the condition of outer contact 12 and the conductive region 19 on the upper portion circuit board 11 territory contact is inequality, and the design of outer contact 12 straight line distribution does benefit to its quantity linear variation with the conductive region 19 territory contact to conveniently adjust the gear.

As shown in fig. 6, the external contact 12 includes a base 22, a housing 23 mounted on the base 22, a sliding rod 24 disposed inside the housing 23 and sliding along an axial direction, and a spring 25 disposed inside the base 22 and providing an elastic force to the sliding rod 24, wherein a limiting shoulder 26 is formed between an inner wall of the base 22 and an inner wall of the housing 23, a snap ring 27 matched with the limiting shoulder 26 is disposed at the bottom of the sliding rod 24, a top end of the sliding rod 24 extends out of the housing 23, and a top end of the sliding rod 24 is an electrical contact end 21; the shell 23 is arranged in the corresponding mounting hole 15 in a penetrating manner, and the bottom end of the base 22 is provided with a limiting ring 16 clamped at the bottom of the bottom circuit board 2.

The bottom circuit board 2 is provided with a fixing frame 28 for fixing the outer contact 12, so that the outer contact 12 can be prevented from swinging, and a fixing effect is achieved.

As shown in fig. 2, inside gear positioning mechanism 5 that is equipped with of upper cover 3, gear positioning mechanism 5 includes screens gear 6 with 4 linkage settings of pivot, forms complex screens ball 7 and provides the second spring 8 of elasticity for screens ball 7 with

screens gear

6, 3 inboards of upper cover are equipped with mounting groove 9, second spring 8 sets up in mounting groove 9, partly settings of screens ball 7 in mounting groove 9 with second spring 8 extrusion fit, another part setting of screens ball 7 is outside at mounting groove 9 and cooperatees with screens ball 7. The gear position is changed by the angle of one tooth number when the position-clamping gear 6 rotates, which is very convenient. The second spring 8 provides elasticity for the clamping ball 7, so that the hand feeling when the rotating shaft 4 is rotated can be improved.

As shown in fig. 2, an annular groove 13 is formed in the bottom of the housing 1, a sealing ring 14 is embedded in the annular groove 13, and the bottom circuit board 2 is in extrusion fit with the sealing ring 14 when the bottom circuit board 2 is fixedly connected with the housing 1. The electric connector can prevent dust, water vapor and the like from entering the shell 1 to contact with the upper circuit board 11 to generate dirt, thereby increasing unnecessary electrical impedance in the circuit and causing circuit failure or even circuit interruption in serious cases.

This practical theory of operation: the utility model discloses outer contact 12's top elastic connection has electric contact end 21, and electric contact end 21 can follow axial displacement with 11 extrusion contact of upper portion circuit board and electric contact end 21 under the spring action, because upper portion circuit board 11 sets up with the 4 linkages of pivot, just can drive 11 rotations of upper portion circuit board when consequently rotating pivot 4, and then the relative position of conductive area 19 on the circuit board 11 of upper portion and outer contact 12 changes and takes place to change. The external contact 12 is in an on output state when the external contact 12 is in contact with the conductive area 19 on the upper wiring board 11, and the external contact 12 is in an off state when the external contact 12 is in contact with the insulating area 20 on the upper wiring board 11. In the use process, the external contact 12 only moves slightly up and down, so that the service life of the electric contact end 21 can be greatly prolonged, the service life of the electric appliance can be prolonged, and the maintenance cost of the electric appliance can be reduced.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications and variations can be made in the embodiments or in part of the technical features of the embodiments without departing from the spirit and the scope of the invention.

Claims

1. A digital band switch comprises a shell (1), a bottom circuit board (2) arranged at the bottom of the shell (1), an upper cover (3) arranged on the shell (1), a rotating shaft (4) penetrating through the upper cover (3) and extending into the shell (1) from the lower part, an upper circuit board (11) arranged at the bottom end of the rotating shaft (4) and linked with the rotating shaft (4), and a group of outer contact heads (12) fixed on the bottom circuit board (2) and contacted with the upper circuit board (11), wherein a conductive area (19) and an insulating area (20) are arranged on the upper circuit board (11); the method is characterized in that: a group of mounting holes (15) are formed in the bottom circuit board (2), the outer contact heads (12) are arranged in the corresponding mounting holes (15), the tops of the outer contact heads (12) are elastically connected with electric contact ends (21), the electric contact ends (21) are in extrusion contact with the upper circuit board (11) under the action of elastic force, and the electric contact ends (21) axially displace; when the outer contact (12) is in contact with the conductive region (19), the outer contact (12) is in a conduction output state, and when the outer contact (12) is in contact with the insulating region (20), the outer contact (12) is in a disconnection state.

2. A digital band switch according to claim 1, wherein: the outer contact head (12) is a pogo pin.

3. A digital band switch according to claim 1, wherein: the outer contact head (12) comprises a base (22), a shell (23) installed on the base (22), a sliding rod (24) arranged inside the shell (23) and sliding along the axial direction, and a spring (25) arranged inside the base (22) and providing elasticity for the sliding rod (24), wherein a limiting shoulder (26) is formed between the inner wall of the base (22) and the inner wall of the shell (23), a clamping ring (27) matched with the limiting shoulder (26) is arranged at the bottom of the sliding rod (24), the top end of the sliding rod (24) extends out of the shell (23), and the top end of the sliding rod (24) is an electric contact end (21); the shell (23) penetrates through the corresponding mounting hole (15), and a limiting ring (16) clamped at the bottom of the bottom circuit board (2) is arranged at the bottom end of the base (22).

4. A digital band switch according to claim 1, wherein: the electric contact end (21) of the outer contact head (12) is round-head-shaped, and a gold plating layer is arranged on the surface of the outer contact head (12).

5. A digital band switch according to claim 1, wherein: and a fixing frame (28) for fixing the outer contact head (12) is arranged on the bottom circuit board (2).

6. A digital band switch according to claim 1, wherein: the group of outer contact heads (12) are linearly distributed.

7. A digital band switch according to claim 1, wherein: upper cover (3) inside is equipped with gear positioning mechanism (5), gear positioning mechanism (5) include with pivot (4) linkage setting screens gear (6), form complex screens ball (7) and provide second spring (8) of elasticity for screens ball (7) with screens gear (6), upper cover (3) inboard is equipped with mounting groove (9), second spring (8) set up in mounting groove (9), a part setting of screens ball (7) is in mounting groove (9) with second spring (8) extrusion fit, and another part setting of screens ball (7) cooperatees in mounting groove (9) outside and with screens ball (7).

8. A digital band switch according to claim 1, wherein: the improved PCB wiring board fixing device is characterized in that a supporting plate (10) used for fixing an upper circuit board (11) is arranged on the rotating shaft (4), a positioning protrusion (17) is arranged at the edge of the supporting plate (10), and a clamping groove (18) matched with the positioning protrusion (17) is formed in the edge of the upper circuit board (11).

9. A digital band switch according to claim 1, wherein: annular groove (13) have been seted up to the bottom of shell (1), and annular groove (13) are embedded to be equipped with sealing washer (14), just bottom circuit board (2) and sealing washer (14) extrusion fit when bottom circuit board (2) and shell (1) fixed connection.