CN211555715U - Knob type electric appliance control switch - Google Patents

Abstract

The utility model provides a knob type electric appliance control switch, which solves the problems of the control switch such as easy water inlet and short circuit, the switch comprises a switch front cover, wherein the lower part of the switch front cover and a switch rear cover are spliced with each other, a switch PCB is arranged between the switch front cover and the switch rear cover through a connecting mechanism, a pressing type knob assembly is arranged on the switch front cover, a liquid crystal display mechanism is arranged in the switch front cover, the upper end of the switch front cover is covered with a waterproof adhesive film in an attaching manner, the pressing type knob assembly penetrates through the waterproof adhesive film and the switch front cover to be connected with the switch PCB, the lower end of the switch rear cover is connected with a power supply rear cover, a switch bottom box with an upward opening is connected with the lower part of the power supply rear cover, a power supply PCB is arranged in the switch bottom box, the opening is sealed by a power supply PCB cover plate, and, any one of the threading holes communicates the upper part and the lower part of the switch rear cover, and the rest threading holes are sealed by waterproof plugs. The utility model has the advantages of good waterproof performance, stable installation structure and the like.

Description

Knob type electric appliance control switch

Technical Field

The utility model belongs to the technical field of controller switchgear, concretely relates to knob formula electrical apparatus control switch.

Background

In home decoration, the junction box is one of electrical accessories, because the electric wire for decoration passes through the electric wire tube, the junction box is adopted for transition at the joint part of the electric wire (such as longer line or corner of the electric wire tube), the electric wire tube is connected with the junction box, the electric wire in the wire tube is connected in the junction box to play the roles of protecting the electric wire and connecting the electric wire, and the junction box is the junction box. The type 86 junction box is common at present, and a connector lug of the controller is plugged in the type 86 junction box to be connected with a power interface. However, in practical use, a part of the junction box is blocked by the wall or extends out of the wall when the junction box is too close to the edge of the wall, so that the installation applicability is poor. In addition, when the controller works in a humid environment, the sealing performance of the shell of the controller is poor, and the PCB module is easy to enter water and has short-circuit fault, so that potential safety hazard is caused.

In order to solve the defects of the prior art, people have long searched for and put forward various solutions. For example, chinese patent literature discloses a mounting structure [201721643416.0] of a strip-shaped controller, which includes a mounting base plate and a rear housing of the controller, the rear housing and the mounting base plate are both in a strip shape, the mounting base plate is used for mounting on a junction box, the rear housing is mountable on the mounting base plate, the junction box includes a first junction box, wherein the mounting base plate is divided into a first region and a second region along a length direction, the first region is provided with an avoiding hole for a power line to pass through, and a shape of the avoiding hole matches with an opening shape of the first junction box; be provided with wiring hole and the winding displacement recess of inwards sunken on the backshell, the backshell is divided into third region and fourth region along length direction, and the wiring hole sets up on the third region of backshell, and the winding displacement recess uses the wiring hole as the starting point, extends along the length direction of backshell to extend to the fourth region.

The scheme solves the problem of poor installation applicability of the control switch to a certain extent, but the scheme still has a plurality of defects, such as PCB short circuit caused by poor waterproofness.

Disclosure of Invention

The utility model aims at the above-mentioned problem, provide a reasonable in design, knob formula electrical apparatus control switch that waterproof performance is good.

In order to achieve the above purpose, the utility model adopts the following technical proposal: this knob formula electrical apparatus control switch, including the switch protecgulum, the lid splices mutually behind switch protecgulum below and the switch, install switch PCB board through coupling mechanism between the lid behind switch protecgulum and the switch, install pressure formula knob subassembly on the switch protecgulum, it has waterproof pad pasting to install liquid crystal display mechanism and switch protecgulum upper end laminating in the switch protecgulum, pressure formula knob subassembly passes waterproof pad pasting and switch protecgulum and is connected with switch PCB board, lid lower extreme is connected with the power after the switch, the power after is connected with the switch end box that the opening is up in the lid below, it is sealed by power PCB apron to install power PCB and opening part in the switch end box, it has a plurality of through wires holes to cover to open behind the switch, one of them arbitrary through wires hole is with switch after the lid about the intercommunication and all the other through wires holes are sealed by the waterproof stopper. Waterproof pad pasting covers before opening light, and the through wires hole of not working a telephone switchboard in the lid is sealed by the waterproof stopper behind the switch, has avoided water to get into in switch PCB board and the power PCB, has improved holistic waterproof nature.

In foretell knob formula electrical apparatus control switch, pressure formula knob subassembly includes the knob with switch protecgulum relative pivoted, and the knob side distributes has anti-skidding stripe, and the top is opened in the knob has the button mounting groove, and button spliced eye is opened at button mounting groove center. The knob is combined with the key group, and the power can be adjusted while the switch is switched on and off.

In foretell knob formula electrical apparatus control switch, press formula knob subassembly including installing the button group on the knob, press the button including the installation joint press the key in the button mounting groove according to the button group, press key lower extreme center and be connected with according to the button post, according to the button post alternate in the button spliced eye and around arranging a plurality of elasticity about pressing the button post central axis symmetry and compress tightly the strip. The button post is pressed down with switch PCB board contact under the effect of elasticity compressing strip, avoids pressing the button and deviate from in the button mounting groove.

In foretell knob formula electrical apparatus control switch, coupling mechanism includes a plurality of settings and covers inboard connecting seat behind the switch, and open at the connecting seat center has the round hole, and switch protecgulum below is connected with a plurality of cylinders with the round hole one-to-one, and it has the connecting hole with the round hole one-to-one to open on the switch PCB board, and the cylinder passes the connecting hole and pegs graft in the round hole. The switch front cover is used for fixing the switch PCB on the switch rear cover under the action of the connecting mechanism, and the cylindrical inserting round holes in the switch front cover and the switch rear cover are prevented from moving.

In foretell knob formula electrical apparatus control switch, coupling mechanism is equipped with the spacing step with the laminating of pressure formula knob subassembly lower extreme including the roating seat of connection in switch PCB board top in the roating seat middle part, and it has a plurality of joint grooves to open on the roating seat, joint groove and the inboard joint strip joint of pressure formula knob subassembly lower extreme each other. The rotary seat is clamped with the pressing type knob assembly, and water vapor is prevented from entering the switch PCB from the gap of the pressing type knob assembly.

In the knob type electric appliance control switch, the switch bottom box is fixedly connected with the power supply PCB and the power supply PCB cover plate through the positioning and installing mechanism, and the side surface of the switch bottom box is provided with a plurality of wiring holes and heat dissipation strips. The switch bottom box is arranged in the wall body, and a power line passes through the wiring hole and is introduced into the switch bottom box.

In the knob type electric appliance control switch, the positioning installation mechanism comprises a positioning table which is arranged on the inner side surface of the switch bottom box and protrudes inwards, and positioning notches which are clamped with the positioning table are formed in the power supply PCB and the power supply PCB cover plate. The power supply PCB is arranged in the switch bottom box and is provided with the power supply PCB cover plate, so that potential safety hazards caused by strong current contact are avoided

In the knob type electric appliance control switch, one side of the upper end of the power supply PCB is connected with the positioning block, the positioning block is provided with a wiring channel in the vertical direction, and the cover plate of the power supply PCB is provided with the positioning opening correspondingly spliced with the positioning block. The power supply PCB is connected with the switch PCB through the wiring channel, and the positioning block also avoids dislocation of the power supply PCB and the power supply PCB cover plate.

In the knob type electric appliance control switch, the bottom of the switch bottom box is vertically provided with a plurality of positioning columns, the middle part of the positioning table is provided with a positioning step, and the positioning columns and the positioning step are fixedly attached to the power supply PCB. The positioning step and the positioning column leave transformer installation space for the power supply PCB and the bottom of the switch bottom box, and smooth heat exchange of the heat dissipation strip on one side is guaranteed.

In the knob type electric appliance control switch, a plurality of mounting holes are formed in the upper portion of the power supply rear cover, and the mounting holes are arranged along the axial direction of the center above the power supply rear cover. The mounting hole is arranged on the central line of the power supply rear cover, so that the mounting in the left direction and the mounting in the right direction are realized, and the mounting is not limited by the position of the switch bottom box during terminal mounting.

Compared with the prior art, the utility model has the advantages of: the waterproof sticking film and the waterproof plug are waterproof, so that the waterproofness of the switch PCB and the power supply PCB is improved; the connecting mechanism ensures that the switch front cover, the switch PCB and the switch rear cover are stably connected and are not easy to be misplaced; the mounting hole is arranged in the direction of the central axis of the rear cover of the power supply, so that the mounting in the left direction and the mounting in the right direction are realized, and the mounting applicability is improved.

Drawings

Fig. 1 is a schematic structural diagram of the present invention;

fig. 2 is a schematic structural view after the utility model is unfolded;

fig. 3 is a schematic structural diagram of the knob of the present invention;

fig. 4 is a schematic view of another view of the knob of the present invention;

fig. 5 is a schematic structural diagram of the switch front cover of the present invention;

fig. 6 is a schematic structural diagram of the switch bottom case and the power supply rear cover of the present invention;

in the figure, the switch front cover 1, the switch rear cover 2, the connecting mechanism 3, the connecting seat 31, the round hole 32, the cylinder 33, the connecting hole 34, the rotating seat 35, the limit step 36, the clamping groove 37, the clamping strip 38, the switch PCB 4, the press-type knob component 5, the knob 51, the anti-slip strip 52, the key mounting groove 53, the key plugging hole 54, the key group 55, the press key 56, the key column 57, the elastic pressing strip 58, the waterproof adhesive film 6, the power rear cover 7, the threading hole 71, the waterproof plug 72, the mounting hole 73, the switch bottom box 8, the power PCB81, the power PCB cover plate 82, the wiring hole 83, the heat dissipation strip 84, the positioning mounting mechanism 9, the positioning table 91, the positioning notch 92, the positioning block 93, the wiring channel 94, the positioning port 95, the positioning column 96 and the positioning step 97.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.

As shown in fig. 1-6, the knob type electric appliance control switch comprises a switch front cover 1, the lower part of the switch front cover 1 is spliced with a switch rear cover 2, a switch PCB 4 is arranged between the switch front cover 1 and the switch rear cover 2 through a connecting mechanism 3, a pressing knob component 5 is arranged above the switch front cover 1, a liquid crystal display mechanism is arranged in the switch front cover 1, the upper end of the switch front cover 1 is covered with a waterproof adhesive film 6 in a bonding manner, the pressing knob component 5 passes through the waterproof adhesive film 6 and the switch front cover 1 to be connected with the switch PCB 4, the lower end of the switch rear cover 2 is connected with a power supply rear cover 7, a switch bottom box 8 with an upward opening is connected below the power supply rear cover 7, a power supply PCB81 is arranged in the switch bottom box 8, the opening is sealed by a power supply PCB cover plate 82, a plurality of threading holes 71 are arranged on the switch rear cover, any one of the threading holes 71 communicates the upper part and the lower part of the switch rear cover 2, and the rest threading holes 71 are sealed by waterproof plugs 72. During installation, the waterproof film 6 covers the switch front cover 1, an opening for installing the pressing type knob assembly 5 is reserved, a threading hole 71 is reserved on the switch rear cover 2 to connect the power supply PCB81 with the switch PCB 4, and the switch rear cover 2 is clamped with the edge of the power supply rear cover 7, so that the connection and installation are integrated.

Specifically, the press type knob assembly 5 includes a knob 51 rotating relative to the switch front cover 1, anti-slip stripes 52 are distributed on the side edge of the knob 51, a key mounting groove 53 is opened on the upper portion in the knob 51, and a key insertion hole 54 is opened in the center of the key mounting groove 53. The knob 51 is rotatably mounted on the switch front cover 1 and attached to the rotary base 35 above the switch PCB 4.

Further, the press type knob assembly 5 includes a key set 55 installed on the knob 51, the key set 55 includes a press key 56 installed in the key installation groove 53 in a clamping manner, the center of the lower end of the press key 56 is connected with a key column 57, the key column 57 is inserted into the key insertion hole 54, and a plurality of elastic pressing strips 58 symmetrical about the central axis of the key column 57 are arranged around the key column 57. When the key post 57 is inserted into the key insertion hole 54, the elastic pressing strip 58 applies a pressing force to the inner wall of the key insertion hole 54, and the pressing key 56 is inserted into the key installation groove 53 and does not fall off.

Furthermore, the connecting mechanism 3 comprises a plurality of connecting seats 31 arranged on the inner side of the switch rear cover 2, a round hole 32 is formed in the center of each connecting seat 31, a plurality of cylinders 33 which correspond to the round holes 32 one by one are connected below the switch front cover 1, connecting holes 34 which correspond to the round holes 32 one by one are formed in the switch PCB 4, and the cylinders 33 penetrate through the connecting holes 34 and are inserted into the round holes 32. The connecting seats 31 of the switch rear cover 2 are attached to the bottom surface of the column 33, and each connecting seat 31 is close to the edge of the switch rear cover 2, so that the switch front cover 1 and the switch rear cover 2 are hermetically connected while the positioning effect is achieved.

Deeply, coupling mechanism 3 is including connecting the roating seat 35 in switch PCB board 4 top, and roating seat 35 middle part is equipped with the spacing step 36 with the laminating of 5 lower extremes of pressure formula knob subassembly, and roating seat 35 upper end is opened has a plurality of joint grooves 37, joint groove 37 and the inboard joint strip 38 joint of 5 lower extremes of pressure formula knob subassembly of joint each other. Bottom surface laminating under spacing step 36 of roating seat 35 and the knob 51, wherein joint groove 37 upper mouth is the V style of calligraphy, makes things convenient for joint strip 38 to insert in joint groove 37, and under the drive of joint strip 38, roating seat 35 rotates with switch PCB board 4 relatively.

Meanwhile, the switch bottom box 8 is fixedly connected with the power supply PCB81 and the power supply PCB cover plate 82 through the positioning and mounting mechanism 9, and a plurality of wiring holes 83 and heat dissipation strips 84 are formed in the side face of the switch bottom box 8. The switch bottom box 8 is installed in the wall, the electric wire is led into the power supply PCB81 and the voltage transformation component in the switch bottom box 8, the processed current is input into the switch PCB 4, and the switch bottom box 8 can be 172mm multiplied by 86mm which is twice the size of a common 86 switch.

In addition, the positioning and mounting mechanism 9 includes a positioning table 91 provided on the inner side surface of the switch bottom case 8 and protruding inward, and positioning notches 92 engaged with the positioning table 91 are provided on the power PCB81 and the power PCB cover 82. The positioning table 91 is vertically and oppositely arranged on two sides of the inside of the switch bottom box 8, the mounting positions of the power supply PCB81 and the power supply PCB cover plate 82 are fixed by the convex part of the positioning table, and the inside of the switch bottom box 8 is isolated from the upper part of the power supply rear cover 7 by the power supply PCB cover plate 82.

Preferably, one side of the upper end of the power PCB81 is connected with a positioning block 93, the positioning block 93 is provided with a wiring channel 94 in the vertical direction, and the power PCB cover plate 82 is provided with a positioning opening 95 correspondingly inserted with the positioning block 93. The current output by the power supply PCB81 is passed into the switch PCB 4 through the wiring channel 94 and the wiring hole 71 on the switch rear cover 2.

Obviously, a plurality of positioning columns 96 are erected at the bottom of the switch bottom box 8, a positioning step 97 is arranged in the middle of the positioning table 91, and the positioning columns 96 and the positioning step 97 are attached and fixed with the power supply PCB 81. The upper top surfaces of the positioning column 96 and the positioning step 97 are positioned on the same horizontal plane, and the power supply PCB81 is attached to the upper ends of the positioning column 96 and the positioning step 97 and leaves a certain space with the bottom surface of the switch bottom box 8.

As can be seen, a plurality of mounting holes 73 are formed above the power supply rear cover 7, and the mounting holes 73 are arranged along the central axial direction above the power supply rear cover 7. Wherein, the mounting hole 73 can be round or bar-shaped, when the power supply rear cover 7 is mounted on the wall in a fitting manner, the power supply rear cover can be mounted in the left and right directions, and the edge or the corner of the wall is avoided.

In summary, the principle of the present embodiment is: after the switch front cover 1, the switch rear cover 2 and the switch PCB 4 are spliced under the action of the connecting mechanism 3, a waterproof film 6 is plated on the upper end of the switch front cover 1, a plurality of threading holes 71 are formed in the switch rear cover 2, and the threading holes 71 which are not threaded are sealed by waterproof plugs 72.

The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications, additions and substitutions for the specific embodiments described herein may be made by those skilled in the art without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.

Although terms such as the switch front cover 1, the switch rear cover 2, the connection mechanism 3, the connection seat 31, the circular hole 32, the cylinder 33, the connection hole 34, the rotation seat 35, the limit step 36, the clamping groove 37, the clamping strip 38, the switch PCB 4, the press-type knob assembly 5, the knob 51, the anti-slip stripe 52, the key installation groove 53, the key insertion hole 54, the key set 55, the press key 56, the key post 57, the elastic pressing strip 58, the waterproof adhesive film 6, the power rear cover 7, the threading hole 71, the waterproof plug 72, the installation hole 73, the switch bottom box 8, the power PCB81, the power PCB cover 82, the wiring hole 83, the heat dissipation strip 84, the positioning installation mechanism 9, the positioning table 91, the positioning notch 92, the positioning block 93, the wiring channel 94, the positioning port 95, the positioning column 96, the positioning step 97, and the like are used more frequently, the possibility of using other terms is not. These terms are used merely to more conveniently describe and explain the nature of the present invention; they are to be construed in a manner that is inconsistent with the spirit of the invention.

Claims (10)

1. A knob type electric appliance control switch comprises a switch front cover (1), wherein the lower part of the switch front cover (1) is mutually spliced with a switch rear cover (2), a switch PCB (printed circuit board) (4) is installed between the switch front cover (1) and the switch rear cover (2) through a connecting mechanism (3), the knob type electric appliance control switch is characterized in that a pressing type knob component (5) is installed above the switch front cover (1), a liquid crystal display mechanism is installed in the switch front cover (1), a waterproof adhesive film (6) covers the upper end of the switch front cover (1) in an adhering mode, the pressing type knob component (5) penetrates through the waterproof adhesive film (6) and the switch front cover (1) to be connected with the switch PCB (4), the lower end of the switch rear cover (2) is connected with a power supply rear cover (7), a switch bottom box (8) with an upward opening is connected below the power supply rear cover (7), the switch bottom box (8) in install power PCB (81) and the opening part is sealed by power PCB apron (82), switch back lid (2) on open and to have a plurality of through wires hole (71), wherein arbitrary through wires hole (71) with switch back lid (2) upper and lower intercommunication and all the other through wires hole (71) are sealed by waterproof plug (72).

2. The knob type electrical appliance control switch according to claim 1, wherein the press type knob assembly (5) comprises a knob (51) rotating relative to the switch front cover (1), anti-slip stripes (52) are distributed on the side edge of the knob (51), a key mounting groove (53) is arranged on the upper portion in the knob (51), and a key insertion hole (54) is arranged in the center of the key mounting groove (53).

3. The knob type electrical appliance control switch according to claim 2, wherein the press type knob assembly (5) comprises a key group (55) installed on the knob (51), the key group (55) comprises a press key (56) installed and clamped in the key installation groove (53), the center of the lower end of the press key (56) is connected with a key column (57), the key column (57) is inserted in the key insertion hole (54) and a plurality of elastic pressing strips (58) symmetrical about the central axis of the key column (57) are arranged around the key column.

4. The knob type electric appliance control switch according to claim 1, 2 or 3, wherein the connecting mechanism (3) comprises a plurality of connecting seats (31) arranged at the inner side of the switch rear cover (2), a round hole (32) is formed in the center of each connecting seat (31), a plurality of cylinders (33) corresponding to the round holes (32) in a one-to-one manner are connected below the switch front cover (1), connecting holes (34) corresponding to the round holes (32) in a one-to-one manner are formed in the switch PCB (4), and the cylinders (33) penetrate through the connecting holes (34) to be inserted into the round holes (32).

5. The knob type electrical appliance control switch according to claim 4, wherein the connecting mechanism (3) comprises a rotating base (35) connected above the switch PCB (4), a limiting step (36) attached to the lower end of the pressing type knob assembly (5) is arranged in the middle of the rotating base (35), a plurality of clamping grooves (37) are formed in the upper end of the rotating base (35), and the clamping grooves (37) are mutually clamped with clamping strips (38) on the inner side of the lower end of the pressing type knob assembly (5).

6. The knob type electrical appliance control switch according to claim 1, wherein the switch bottom case (8) is fixedly connected with the power supply PCB (81) and the power supply PCB cover plate (82) through a positioning and mounting mechanism (9), and a plurality of wiring holes (83) and heat dissipation strips (84) are formed in the side surface of the switch bottom case (8).

7. The knob type electrical appliance control switch according to claim 6, wherein the positioning and mounting mechanism (9) comprises a positioning platform (91) which is arranged on the inner side surface of the switch bottom box (8) and protrudes inwards, and positioning notches (92) which are clamped with the positioning platform (91) are formed on the power supply PCB (81) and the power supply PCB cover plate (82).

8. The knob type electrical appliance control switch according to claim 7, wherein one side of the upper end of the power supply PCB (81) is connected with a positioning block (93), the positioning block (93) is provided with a wiring channel (94) in the vertical direction, and the power supply PCB cover plate (82) is provided with a positioning opening (95) which is correspondingly inserted with the positioning block (93).

9. The knob type electrical appliance control switch according to claim 7, wherein a plurality of positioning posts (96) are erected at the bottom of the switch bottom box (8), a positioning step (97) is arranged in the middle of the positioning table (91), and the positioning posts (96) and the positioning step (97) are attached and fixed with the power supply PCB (81).

10. The knob type electrical appliance control switch according to claim 1, wherein a plurality of mounting holes (73) are formed above the power supply rear cover (7), and the mounting holes (73) are arranged along the central axial direction above the power supply rear cover (7).

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