CN219677087U - Switch - Google Patents

Abstract

A switch belongs to the technical field of a piezoelectric device. The nut comprises an upper cover assembly and a control module, wherein the upper cover assembly is located above the control module, the control module comprises a housing and a rear cover, a nut cavity with an opening facing the rear cover is formed in the housing, a through hole is formed in the top surface of the housing facing the upper cover assembly, a limit boss is arranged on the rear cover in a extending mode, after the nut is accommodated in the nut cavity, the housing and the rear cover are fastened back and forth, and the limit boss is matched with the opening of the nut cavity to limit the nut at a preassembly position corresponding to the through hole. The advantages are that: the cost can be reduced, the nut can slide along the nut cavity of the housing in a certain range, the precision requirement is low, and the assembly is convenient.

Description

Switch

Technical Field

The utility model belongs to the technical field of piezoelectric devices, and particularly relates to a switch.

Background

The switch in the low voltage power field is used for controlling the opening or closing of a circuit and is generally provided with two user interfaces, namely a user operation interface which is generally arranged at the top of the switch in the height direction, and the interface is provided with an electric mode switching device and a manual mode switching device, an operation locking device, a socket for inserting a user handle during manual operation, a display screen for interaction with a user and the like; the other interface is an interface for user connection, which is generally arranged on the front side of the switch, i.e. is vertically arranged along the height direction of the switch and is vertical to the user operation interface, and the interface is provided with a signal connection terminal, wherein the user can select the terminal connection therein to obtain a switch state signal or input a switch control signal, etc.

A common low voltage electrical switching apparatus, such as an automatic transfer switch, is typically provided with the two user interfaces described above. The automatic transfer switch is mainly used for important power supply places, and is switched to another power supply when one power supply fails to supply power to the load equipment continuously, so that the normal work of the load equipment is ensured. The automatic transfer switch generally comprises a base plate, two module assemblies such as a molded case circuit breaker, an operating mechanism, a controller and the like serving as an executing switch, wherein the controller is installed on the base plate of the automatic transfer switch as an independent module, an interface for wiring of the user is usually arranged, the top of the automatic transfer switch in the height direction serves as an operating interface facing the user, the operating interface is formed on the upper surface of an upper cover assembly, and the upper cover assembly is fastened with the control module up and down. In order to meet the integral assembly requirement, at present, an insert is arranged in a housing of the controller, namely, a nut and the housing are integrally formed during molding, so that the upper cover is fixed, and the defects are that the cost is increased, the precision requirement is high, and the assembly is inconvenient.

In view of the above-mentioned prior art, there is a need for an improvement in the structure of existing switches, for which the inventors have devised advantageously, and the technical solutions described below are created in this context.

Disclosure of Invention

The utility model aims to provide a switch which can reduce the assembly precision requirement, thereby facilitating assembly and reducing cost.

The utility model aims at achieving the purpose, and the switch comprises an upper cover assembly and a control module, wherein the upper cover assembly is positioned above the control module, the control module comprises a housing and a rear cover, a nut cavity with an opening facing the rear cover is formed in the housing, a through hole is formed in the top surface of the housing facing the upper cover assembly, a limit boss extends on the rear cover, after the nut is accommodated in the nut cavity, the housing and the rear cover are fastened back and forth, and the limit boss is matched with the opening of the nut cavity to limit the nut at a preassembled position corresponding to the through hole.

In a specific embodiment of the utility model, the upper cover component is provided with a first user interface for operating a switch, the housing is provided with a second user interface for wiring, the second user interface is arranged perpendicular to the first user interface, four sides are arranged around the surface of the housing, which forms the second user interface, the housing is made to be an open box shape, one side surface facing the upper cover component forms the top surface, and the rear cover is fastened with the housing through a fastener and then covers the opening of the housing; the screw passes through the upper cover component and the through hole in sequence and then is fastened with the nut, so that the upper cover component is fastened on the top surface of the control module.

In another specific embodiment of the present utility model, the control device further comprises a bottom plate, a first execution switch, a second execution switch, an operating mechanism and a top shell, wherein the first execution switch, the second execution switch and the operating mechanism are fixed on the bottom plate, the first execution switch and the second execution switch are respectively arranged on the left side and the right side of the operating mechanism, the upper cover assembly is located above the operating mechanism, the control module is located on the front side of the operating mechanism, and the top shell is covered on the rear side of the operating mechanism.

In still another specific embodiment of the present utility model, a first insulating pad is disposed between the first actuator switch and the base plate, and a second insulating pad is disposed between the second actuator switch and the base plate.

The nut cavity is arranged in the housing of the control module, after the nut is placed in the nut cavity, the housing and the rear cover are fastened back and forth, the limit boss on the rear cover is matched with the opening of the nut cavity to limit the nut at the preassembled position corresponding to the through hole, so that a screw can conveniently pass through the upper cover component and the through hole of the housing in sequence from the upper side of the upper cover component and then is fastened with the nut, the upper cover component is covered on the top surface of the control module, and the upper cover component and the lower cover component are fixed.

Drawings

FIG. 1 is a schematic diagram of the overall structure of the present utility model;

FIG. 2 is an exploded view of FIG. 1;

FIG. 3a is an exploded view of the control module of the present utility model with two circuit boards mounted therein;

FIG. 3b is an exploded view of the control module of the present utility model with a circuit board mounted therein;

FIG. 4a is a front perspective view of the housing of the present utility model;

FIG. 4b is a rear perspective view of the housing of the present utility model;

FIG. 4c is a rear elevational view of the housing of the present utility model;

FIG. 5 is a schematic view of the structure of the rear cover according to the present utility model;

FIG. 6 is a schematic view of a first user interface on the lid assembly of the present utility model;

FIG. 7 is a rear view of the cap assembly of the present utility model;

FIG. 8 is a schematic view of the structure of the upper cover according to the present utility model;

FIG. 9 is a schematic diagram of a routing channel according to the present utility model;

FIG. 10 is a schematic view of a knob mounting groove according to the present utility model;

FIG. 11a is a schematic front view of a knob of the present utility model;

FIG. 11b is a schematic back view of a knob of the present utility model.

In the figure: 1. the device comprises an upper cover assembly, 10, a first user interface, 11, an upper cover, 111, a circuit board mounting area, 112, clamping feet, 113, a knob mounting groove, 1131, internal teeth, 1132, limit protrusions, 114, limit feet, 115, a wiring channel, 12, an upper cover circuit board, 13, a wire harness, 14, a knob, 141, a positioning foot, 142, a boss and 143, a driving boss. 2. Control module, 20, second user interface, 21, housing, 210, nut cavity, 211, top surface, 212, through holes, 213, connector terminal holes, 214, openings, 215, first circuit board mounting posts, 216, rear cover mounting posts, 217, second circuit board mounting posts, 22, rear cover, 221, stop boss, 222, mounting boss, 23, first circuit board, 231, first signal connector terminal, 24, second circuit board, 241, second signal connector terminal, 25, third circuit board. 31. A nut, 32 a screw; 4. a bottom plate; 5. a first execution switch, 51. A first insulating pad; 6. a second actuator switch 61; 7. an operating mechanism; 8. a top shell.

Detailed Description

The following detailed description of specific embodiments of the utility model, while given in connection with the accompanying drawings, is not intended to limit the scope of the utility model, and any changes that may be made in the form of the inventive concepts described herein, without departing from the spirit and scope of the utility model.

In the following description, all concepts related to the directions (or azimuths) of up, down, left, right, front and rear are directed to the position states where the drawings are being described, so as to facilitate public understanding, and thus should not be construed as being particularly limiting to the technical solutions provided by the present utility model.

Referring to fig. 1, the present utility model relates to a switch, which comprises an upper cover assembly 1 and a control module 2, wherein a first user interface 10 is formed on the upper cover assembly 1 for operating the switch, and a second user interface 20 is formed on the control module 2 for wiring. The first user interface 10 and the second user interface 20 are arranged perpendicular to each other. The present utility model is characterized by a fastening structure between the upper cover assembly 1 and the control module 2.

Referring to fig. 2 in conjunction with fig. 1, the switch according to the present utility model adopts a dual-power automatic transfer switch as an embodiment, and further includes a base plate 4, a first executing switch 5, a second executing switch 6, an operating mechanism 7, and a top case 8. With the view direction of fig. 2 as a reference, the first executing switch 5, the second executing switch 6 and the operating mechanism 7 are fixed on the bottom plate 4, the first executing switch 5 and the second executing switch 6 are respectively arranged on the left side and the right side of the operating mechanism 7, the upper cover assembly 1 is fixed above the operating mechanism 7, the control module 2 is fixed on the front side of the operating mechanism 7, and the top shell 8 is covered on the rear side of the operating mechanism 7, so that the operating mechanism 7 is packaged inside the switch through the first executing switch 5 and the second executing switch 6 on the left side and the right side, the front and rear side control module 2, the top shell 8, the upper cover assembly 1 and the bottom plate 4 which are arranged up and down, as shown in fig. 1. The bottom plate 4 is a metal plate, and a first insulating pad 51 is disposed between the first executing switch 5 and the bottom plate 4, and a second insulating pad 61 is disposed between the second executing switch 6 and the bottom plate 4 in order to improve the electrical gap between the first executing switch 5, the second executing switch 6 and the metal bottom plate 4.

With continued reference to fig. 1 and 2, with the above-described structure, the operating mechanism 7 can be borrowed from the housings of the upper cover assembly 1 and the control module 2, i.e., the control module 2 provides a side housing of the operating mechanism 7, and the upper cover assembly 1 provides a top housing of the operating mechanism 7, whereby the control module 2 is arranged substantially vertically in the height direction of the switch, and the upper cover assembly 1 is covered on the top surface 211 of the control module 2 and is fixed vertically to the control module 2. The cover assembly 1 constitutes the first user interface 10 on a top surface and the control module 2 constitutes the second user interface 20 perpendicular to the first user interface 10 on a front side surface.

Referring to fig. 3a to fig. 5, as a technical gist of the present utility model, the control module 2 includes a housing 21 and a rear cover 22, the housing 21 has an open box shape, and includes a surface on which the second user interface 20 is located (a surface facing the rear cover 22 in fig. 3a and 3 b) and four side surfaces surrounding the surface, wherein a side surface facing the upper cover assembly 1 is configured as the top surface 211, and a through hole 212 is formed in the top surface 211 of the housing 21. As shown in fig. 4a, 4b, and 4c, in this embodiment, the nut cavity 210 is located at two corners below the top surface 211, the opening direction of the nut cavity 210 is consistent with that of the housing 21, the rear cover 22 extends toward the housing 21 at a position corresponding to the nut cavity 210 to form a limit boss 221, after the nut 31 is placed in the nut cavity 210 from the opening of the housing 21, the rear cover 22 is fastened to the housing 21 back and forth by a fastener such as a screw, and in the housing 21 and the rear cover 22, the limit boss 221 cooperates with the opening of the nut cavity 210 to limit the nut 31 at a pre-installation position corresponding to the through hole 212, and the limit boss 221 cooperates with the opening of the nut cavity 210: the opening of the nut cavity 210 may be capped by the limiting boss 221, or the head of the limiting boss 221 may be inserted into the opening of the nut cavity 210. The rear cover 22 covers the opening of the housing 21. The screws 32 pass through the upper cover assembly 1 and the through holes 212 in sequence and then are fastened with the fastening nuts 31, so that the upper cover assembly 1 is fastened on the top surface 211 of the control module 2.

Compared with the prior art that the nut 31 is integrally molded with the housing 21 of the control module 2 as an insert, the improvement of the present utility model can reduce the cost, and the nut 31 can slide along the nut cavity 210 of the housing 21 within a certain range, thus having lower precision requirement and being convenient for assembly.

As shown in fig. 4c, the housing 21 is provided with first and second circuit board mounting posts 215 and 217 for mounting the circuit board and a rear cover mounting post 216 for mounting the rear cover 22. Referring to fig. 3a in combination with fig. 4c, the second circuit board mounting posts 217 are located at the bottom of the housing 21 and are arranged in pairs in a center-symmetrical manner. The bottom of the housing 21 referred to here is the face of the housing 21 parallel to the circuit board inserted, with reference to the view direction of fig. 3 a. In the present embodiment, six second circuit board mounting posts 217 are illustrated, and the six second circuit board mounting posts 217 are symmetrically arranged with respect to the center of the housing 21, and are distributed on the bottom of the housing 21 at positions slightly outside in a manner of three on one side. The first circuit board mounting posts 215 are paired and distributed at one diagonal of the housing 21, and the rear cover mounting posts 216 are also paired and distributed at the other diagonal of the housing 21. The first circuit board mounting post 215 and the rear cover mounting post 216 are preferably higher than the second circuit board mounting post 217, but the three may be provided at a nearly same height, and if the height is insufficient in the post-mounting, the post-mounting may be used for connection. The rear cover 22 is provided with a mounting boss 222 corresponding to the rear cover mounting post 216, and the mounting boss 222 and the rear cover mounting post 216 are matched and can fasten the rear cover 22 and the housing 21 by using screws.

The circuit board is provided with one or more circuit boards in the controller, and the circuit boards are matched according to the requirement of a user.

In an embodiment illustrated in fig. 3a, two circuit boards, a first circuit board 23 and a second circuit board 24, are disposed in the controller. The second circuit board 24 is fixed on the corresponding second circuit board mounting post 217 of the housing 21 by a screw; then, the first circuit board 23 is mounted, and the first circuit board 23 is fixed on a pair of first circuit board mounting posts 215 in the housing 21 by two screws in a manner of arranging a pair of diagonals of the housing 21; finally, the rear cover 22 is mounted, and the mounting boss 222 of the rear cover 22 passes through the first circuit board 23 until abutting against the rear cover mounting post 216 in the housing 21, and two screws fix the housing 21 and the rear cover 22 in such a manner that the other diagonal of the housing 21 is arranged.

The first circuit board 23 and the second circuit board 24 are electrically connected through the signal connector terminal. The second circuit board 24 is provided with a plurality of second signal plug terminals 241 on a side facing the second user interface 20, which extend to the outside of the housing 21 through the plug terminal holes 213 formed on the second user interface 20 for the user to wire. The user selectively uses the signal connection terminal 241 to obtain an on-off state signal of the switch or inputs a control signal from the terminal to control the switching operation. The first circuit board 23 is provided with a first signal plug-in terminal 231 on a side facing the top surface 211 of the housing 21, and the first signal plug-in terminal is exposed out of the control module top surface 211 through an opening 214 on the top surface 211.

In another embodiment shown in fig. 3b, there is only one circuit board. When the controller installs only one third circuit board 25, the third circuit board 25 is fixed on the second circuit board mounting post 217 of the housing 21 by screws, then the rear cover 22 is spliced with the housing 21, and the mounting boss 222 on the rear cover 22 abuts against the rear cover mounting post 216 in the housing 21 and is fixed in a diagonally arranged manner by two screws.

Of course, the controller of the present utility model may be configured to mount only the first circuit board 23, the first circuit board 23 being fastened to the second circuit board mounting post 215 of the housing 21 by two screws in a diagonal arrangement, and then the rear cover 22 being mounted.

Referring to fig. 6 and 7, the upper cover assembly 1 includes an upper cover 11, an upper cover circuit board 12, and a wire harness 13, and in the case of installing the first circuit board 23, the upper cover assembly 1 further includes a knob 14 provided on the upper cover 11. Referring to fig. 8, the upper cover 11 is also box-shaped, a circuit board mounting area 111 is provided in the cover cavity, and the upper cover circuit board 12 is mounted in the circuit board mounting area 111 and is clamped by the clamping pins 112. When the upper cover assembly 1 is covered on the top surface 211, the upper cover circuit board 12 in the upper cover assembly 1 is electrically connected through the second signal connection terminal 231 of the control module 2, so as to perform signal transmission. The circuit board mounting area 111 is provided with a knob mounting groove 113, the knob mounting groove 113 is circular, and the bottom is communicated with the outside of the upper cover 11. The knob mounting groove 113 is provided on the circumferential inner side with internal teeth 1131 and a pair of limit protrusions 1132, as shown in fig. 10.

Referring to fig. 11a and 11b, the knob 14 has a cylindrical shape, and is provided with a positioning leg 141 and a boss 142 at a circumferential side portion. The knob 14 is countersunk in the knob mounting groove 113 and is rotatable by a user on the first user interface 10. In the rotation process of the knob 14, the potentiometer in the upper cover circuit board 12 can be driven to synchronously rotate through the driving boss 143, and meanwhile, the positioning pins 141 are matched with the inner teeth 1131 of the upper cover 71, so that the knob 14 can be reliably rotated to the corresponding position. The rotation angle of the knob 14 is defined by the cooperation of the pair of stopper protrusions 1132 and the boss 142.

Referring to fig. 9 in combination with fig. 8, the upper cover 11 is provided with spacing pins 114 along the inner side wall, and the spacing pins 114 cooperate with the inner side wall of the upper cover 11 to form a routing channel 115. The wire harness 13 is connected to the upper cover circuit board 12 and led out along a routing channel 115 of the upper cover 11.

Claims (4)

1. A switch comprising an upper cover assembly (1) and a control module (2), wherein the upper cover assembly (1) is located above the control module (2), and is characterized in that: the control module (2) comprises a housing (21) and a rear cover (22), a nut cavity (210) with an opening facing the rear cover (22) is formed in the housing (21), a through hole (212) is formed in the top surface (211) of the housing (21) facing the upper cover component (1), a limit boss (221) is arranged on the rear cover (22) in an extending mode, after the nut (31) is accommodated in the nut cavity (210), the housing (21) and the rear cover (22) are fastened back and forth, and the limit boss (221) is matched with the opening of the nut cavity (210) to limit the nut (31) at a preassembly position corresponding to the through hole (212).

2. A switch as claimed in claim 1, wherein: the upper cover assembly (1) is provided with a first user interface (10) for operating a switch, the housing (21) is provided with a second user interface (20) which is perpendicular to the first user interface (10) and is used for wiring, four sides are arranged around the surface of the housing (21) forming the second user interface (20), the housing (21) is made to be in an open box shape, one side surface facing the upper cover assembly (1) forms the top surface (211), and the rear cover (22) is fastened with the housing (21) through a fastener to cover the opening of the housing (21); the screw (32) sequentially passes through the upper cover assembly (1) and the through hole (212) and then is fastened with the nut (31), so that the upper cover assembly (1) is fastened on the top surface (211) of the control module (2).

3. A switch as claimed in claim 1, wherein: still include bottom plate (4), first execution switch (5), second execution switch (6), operating device (7) and top shell (8), first execution switch (5), second execution switch (6) and operating device (7) are fixed on bottom plate (4) to first execution switch (5) and second execution switch (6) divide to establish the left and right sides of operating device (7), upper cover subassembly (1) are located the top of operating device (7), control module (2) are located the front side of operating device (7), and top shell (8) then the closing cap is in the rear side of operating device (7).

4. A switch as claimed in claim 3, wherein: a first insulating base plate (51) is arranged between the first executing switch (5) and the bottom plate (4), and a second insulating base plate (61) is arranged between the second executing switch (6) and the bottom plate (4).