CN114665427A

CN114665427A - Electronic door bell

Info

Publication number: CN114665427A
Application number: CN202210288914.7A
Authority: CN
Inventors: 洪晓霞
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-03-22
Filing date: 2022-03-22
Publication date: 2022-06-24

Abstract

The application provides an electronic doorbell belongs to doorbell technical field, electronic doorbell includes casing, circuit module, speaker and baffle. The housing can be placed into a single junction box. A circuit assembly is mounted inside the housing and has a voltage conversion module, the circuit assembly having a first terminal and a second terminal, the first terminal and the second terminal being capable of protruding outside the housing and being distributed at different locations of the housing. The speaker is located inside the housing and electrically connected to the circuit assembly. A diaphragm is attached to the housing and located outside the housing, the diaphragm being located between the first terminal and the second terminal. After the housing and the partition are put into the single junction box, the inner space of the single junction box is divided into at least two compartments by the partition, and the first terminal and the second terminal are located in different compartments. The application provides an electronic doorbell can enough install through single terminal box, satisfies "UL" again about the requirement of high low voltage wiring end separation setting.

Description

Electronic door bell

Technical Field

The application belongs to the technical field of doorbell, concretely relates to electronic doorbell.

Background

Whether the doorbell has the UL mark or not tends to influence the sale amount of the doorbell to a great extent. "UL" is an abbreviation for Underwriters Laboratories Inc. (Underwriters Laboratories, USA). The doorbell has a "UL" flag meaning that the doorbell is assessed as safe and can safeguard the person and property of the user during use. A doorbell that does not have a "UL" flag may not be approved for sale and installed by a qualified contractor or building builder.

The doorbell can be mounted on a wall via a standard junction box. By standard junction box is meant that the junction box complies with a country or region related standard, such as a national standard, an industry standard, or other standard. For doorbells installed via standard junction boxes, manufacturers do not have to spend costs on the junction boxes during the design and production process. The doorbell therefore has a cost advantage over other doorbell products, such that the doorbell can be sold at a lower price and also be more readily selected for use by consumers.

Fig. 1 to 3 show a commercially successful doorbell 101. The doorbell 101 has a "UL" flag and may be mounted via a two-gang dual-voltage wall box (two-gang dual-voltage wall box) 108. The duplex dual voltage box 108 is a standard junction box that conforms to the National Electrical Code (NEC). As shown in fig. 1, the doorbell 101 comprises a panel 102, a speaker 104, a circuit board 105, a transformer 106, and a box 107.

As shown in FIG. 2, the cassette body 107 has a first compartment 127 and a second compartment 128. The transformer 106 is fixed in the first compartment 127 by screws 111; the circuit board 105 is secured in the second compartment 128 by screws 110. The speaker 104 is also located in the first compartment 127 and is electrically connected to the circuit board 105. The box body 107 has a through hole 114 therein. The screw 112 passes through the through hole 114 and is screwed into the panel 102, so that the box 107 is fixedly connected with the panel 102. The box body 107 is matched with the duplex dual-voltage box 108 in shape. After the back of the box body 107 is placed into the duplex dual-voltage box 108, the long screw 103 penetrates through the panel 102 and is screwed into the duplex dual-voltage box 108, and the fixed installation of the doorbell 101 is realized. After the doorbell 101 is installed, the panel 102 is exposed and the rest is inside the wall. The duplex dual voltage box 108 has been pre-fixed in the wall before the doorbell 101 is installed.

The wiring work needs to be completed before the back of the case 107 is put into the duplex dual voltage case 108. The wiring work includes the connection of the doorbell 101 to mains (ac at 120V in the us and 60 Hz) and the connection of the doorbell 101 to the doorbell button 109. As shown in fig. 3, the back of the box body 107 has a mains electrical connection terminal 116 and a doorbell button connection terminal 115. The mains inlet 116 is connected to the transformer 106 and has N, G and L three terminals, which are connected to the neutral, ground and live wires, respectively. The doorbell button terminal 115 is connected to the circuit board 105 and to the doorbell buttons 109 of the front and rear doors by wires. When the doorbell button 109 is pressed, the trigger circuit board 105 operates to drive the speaker 104 to emit sound. The sound travels through the grille in the panel 102 and out to alert the personnel in the room that the guest has visited.

The voltage at the mains input 116 is the mains voltage. The voltage at the doorbell button terminal 115 is the operating voltage of the doorbell 101, which may be 24V, for example. The mains voltage is much higher than the operating voltage of the doorbell 101. In this case, the commercial power input terminal 116 and the doorbell button terminal 115 should be separately provided according to the "UL" specification. When the doorbell 101 is installed through the duplex dual-voltage box 108, after the duplex dual-voltage box 108 is placed in the back of the box body 107, the mains supply access terminal 116 and the doorbell button terminal 115 are respectively located in two different compartments of the duplex dual-voltage box 108, so as to meet the requirement of separate setting.

However, the standard junction box includes not only the duplex dual voltage box 108 but also a single-gang box (single-gang box). The single junction box only has one cavity, and the requirement of UL on the separation arrangement of high and low voltage connection wire ends cannot be met.

Disclosure of Invention

The application provides an electronic doorbell, and this electronic doorbell not only can be installed through single terminal box, satisfies "UL" moreover and separates the requirement that sets up about high low voltage wiring end.

The application provides an electronic doorbell includes casing, circuit assembly, speaker and baffle. The housing can be placed into a single junction box. The circuit assembly is mounted inside the housing and has a voltage conversion module, the circuit assembly having a first terminal and a second terminal, the first terminal and the second terminal being capable of protruding outside the housing and being distributed at different locations of the housing. The speaker is located inside the housing and electrically connected to the circuit assembly. The separator is attached to the housing and located outside of the housing, the separator being located between the first terminal and the second terminal.

After the housing and the partition are put into the single junction box, the internal space of the single junction box is divided into at least two compartments by the partition, and the first terminal and the second terminal are located in different compartments.

Compared with the prior art, the electronic doorbell provided by the application uses the shell capable of being placed into a single junction box on the one hand, and can be installed through the single junction box. In another aspect, the present application provides an electronic doorbell having a diaphragm. After the electronic doorbell is installed, the partition board can separate the inner space of a single junction box into at least two compartments. The first terminal and the second terminal are located in different compartments so as to satisfy the requirement of "UL" regarding the high-low voltage terminal separation arrangement. Synthesize above-mentioned two aspects, the electronic doorbell that this application provided not only can be installed through single terminal box, satisfies the requirement that "UL" set up about high low voltage terminal separation moreover.

Drawings

FIG. 1 is a schematic structural component diagram of a doorbell in the prior art;

FIG. 2 is a schematic diagram of a prior art doorbell in which a transformer and a circuit board are mounted in a box;

fig. 3 is a schematic perspective view (viewed from the back) of a doorbell box in the prior art;

FIG. 4 is a schematic structural diagram of an electronic doorbell and a single junction box in an embodiment of the present application;

FIG. 5 is an exploded view of an electronic doorbell in an embodiment of the present application;

FIG. 6 is a schematic structural diagram of an electronic doorbell viewed from the back in an embodiment of the present application;

FIG. 7 is a front view of an electronic doorbell from the back in an embodiment of the present application;

FIG. 8 is a cross-sectional view taken in plane A-A of the electronic doorbell of FIG. 7 mounted to a single junction box;

FIG. 9 is a schematic structural view of a housing according to an embodiment of the present application;

FIG. 10 is the housing of FIG. 9, looking toward the interior of the housing from the opening of the housing;

FIG. 11 is a schematic diagram of a circuit assembly according to an embodiment of the present application;

fig. 12 is a schematic diagram of the circuit assembly shown in fig. 11 in a back view;

FIG. 13 is a schematic structural view of a panel according to an embodiment of the present application;

FIG. 14 is a schematic view of the panel of FIG. 13 viewed from the back;

FIG. 15 is a schematic illustration of how a faceplate and housing may be connected using a flexible card and card slot in an embodiment of the present application, the faceplate and housing not being connected in FIG. 15;

FIG. 16 is a schematic illustration of how a faceplate and housing may be connected using a flexible card and card slot in an embodiment of the present application, the faceplate and housing of FIG. 16 having been connected;

FIG. 17 is a schematic structural view of an electronic doorbell with an inner panel and an outer panel and a single junction box in an embodiment of the present application;

FIG. 18 is a schematic view of a separator plate according to an embodiment of the present application;

FIG. 19 is a front view of the separator plate shown in FIG. 18;

FIG. 20 is a schematic view of the separator shown in FIG. 18, viewed from the back;

FIG. 21 is a schematic view of a housing and a baffle plate connected by a first structure in an embodiment of the present application;

FIG. 22 is a schematic view of how the housing and the partition are connected by the snap fitting and the connecting hole in the embodiment of the present application, FIG. 22 showing the housing and the partition not connected;

FIG. 23 is a schematic view showing how the housing and the partition are coupled by the snap fitting and the coupling hole in the embodiment of the present application, in FIG. 23, the housing and the partition have been coupled;

fig. 24 is a schematic circuit diagram of a voltage conversion module according to an embodiment of the present application.

Detailed Description

In order to make the technical problems, technical solutions and advantageous effects to be solved by the present application clearer, the present application is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of specific configurations of electronic doorbells provided herein and are not intended to limit the scope of the claims herein.

For better understanding of the structural components of the electronic doorbell provided by the present application, please refer to the attached drawings. In the drawings, like reference numerals refer to like features throughout.

First embodiment

As shown in fig. 4 to 8, in the first embodiment, the electronic doorbell includes a housing 200, a circuit assembly 300, a speaker 400, and a partition 500. As shown in fig. 4 and 8, the housing 200 can be put into a single junction box 600. The circuit assembly 300 is mounted inside the case 200 and has a voltage conversion module. The voltage conversion module is not shown in the figure. Circuit assembly 300 has a first terminal 301 and a second terminal 302. The first terminal 301 and the second terminal 302 can protrude outside the housing 200 and be distributed at different portions of the housing 200. The speaker 400 is located inside the case 200 and electrically connected to the circuit assembly 300. The partition 500 is attached to the case 200 and is located outside the case 200. The spacer 500 is located between the first terminal 301 and the second terminal 302. As shown in fig. 8, after the case 200 and the partition plate 500 are put into the single junction box 600, the inner space of the single junction box 600 is partitioned into at least two compartments by the partition plate 500. The at least two compartments include a first compartment 601 and a second compartment 602. The first terminal 301 is located in the first compartment 601 and the second terminal 302 is located in the second compartment 602.

In the first embodiment, the specific structure of the single junction box 600 is not limited. The individual junction box 600 may be a junction box that conforms to the electrical standards of the united states or may be a junction box that conforms to the corresponding standards of china or other countries. The single junction box 600 may be any box with a single cavity, or may be a box with multiple cavities, any of which has a portion with a single cavity.

In the first embodiment, the specific structural composition of the case 200, the circuit assembly 300, the speaker 400, and the partition board 500 is not limited. Circuit assembly 300 and speaker 400 may be implemented using existing technology and are not described in detail. The voltage conversion module may be a switching power supply module. Fig. 24 is a circuit schematic of the voltage conversion module. The voltage conversion module has an ac input 320 and a dc output 321. The ac input 320 may receive 120V or 220V ac power, among other voltages. The dc output terminal 321 can output dc power with voltage of 5V or 24V and other voltages. The voltage output from the dc output 321 will generally not exceed 24V. The voltage conversion module has a transformer unit 322. The transformer unit 322 is a high frequency transformer and has a small size.

The voltage conversion module is an electronic circuit, and compared with a traditional mechanical transformer, the size of the voltage conversion module is greatly reduced. The voltage conversion module is an integral part of the circuit assembly 300, the circuit assembly 300 being located in the housing 200. The reduced size brought by the voltage conversion module provides the possibility that the housing 200 can be placed into a single junction box with only one cavity, enabling the electronic doorbell to transition from installation using dual voltage boxes to installation using a single junction box. In addition, as electronic circuit's voltage conversion module, can provide more stable voltage output, for camera, the bluetooth device and the intercom power supply of intelligent doorbell to better compatible intelligent doorbell.

It should be noted that fig. 24 only shows one implementation of the voltage conversion module. The voltage conversion module may also be implemented by other circuits known or conventional in the art.

The electronic doorbell shown in fig. 4-8 also includes a panel 700. Illustratively, the housing 200 has a substantially rectangular parallelepiped shape and is open at one side. The panel 700 is detachably connected to the case 200. After the electronic doorbell is installed, the panel 700 is fixedly connected with the shell 200 and blocks the opening of the shell 200, so that the inside of the shell 200 becomes a closed space. The circuit assembly 300 and the speaker 400 can be fixedly installed in the closed space.

Illustratively, fig. 9 and 10 show a specific structure of the case 200, fig. 11 and 12 show a specific structure of the circuit assembly 400, and fig. 13 and 14 show a specific structure of the panel 700.

As shown in fig. 9 and 10, the housing 200 has a first opening 201 and a second opening 202. The first terminal 301 and the second terminal 302 of the circuit assembly 300 can protrude outside the housing 200 from the first opening 201 and the second opening 202, respectively, as shown in fig. 6. The housing 200 also has a first connection portion 204 thereon for mounting the circuit assembly 300. The number of the first connection portions 204 is three. Corresponding to the three first connection portions 204, as shown in fig. 11 and 12, the circuit assembly 300 has three first connection holes 304. After the circuit assembly 300 is placed inside the housing 200, the three first connection portions 204 and the three first connection holes 304 can be aligned one by one, and the first screws 801 pass through the first connection holes 304 and are screwed into the first connection portions 204, so as to achieve the fixed installation of the circuit assembly 300, as shown in fig. 8. The first connection portion 204 has a threaded hole that mates with the first screw 801. In addition, the first connection portion 204 has a supporting function for the circuit assembly 300.

In order to align the first connection portion 204 and the first connection hole 204, the housing 200 further has two positioning pillars 205. Each positioning post 205 is adjacent to one first connection portion 204. Corresponding to the positioning posts 205, the circuit assembly 300 has positioning holes 305. The two positioning posts 205 respectively pass through the two positioning holes 305, so as to ensure that the three first connection portions 204 are aligned with the three first connection holes 304 one by one; it is also possible to ensure that the first terminal 301 and the second terminal 302 are aligned with the first opening 201 and the second opening 202, respectively, and the first terminal 301 and the second terminal 302 can smoothly protrude outside the housing 200.

As shown in fig. 11 and 12, the circuit assembly 300 may include a first circuit board 310 and a second circuit board 311 electrically connected to each other. The first terminal 301 and the second terminal 302 are fixed on the first circuit board 310. The first embodiment does not limit the specific structure of the first terminal 301 and the second terminal 302. The first terminal 301 and the second terminal 302 may be implemented in other structures than those shown in fig. 11 and 12. For example, the first terminal 301 and the second terminal 302 are fixed to the housing 200 and electrically connected to the circuit assembly 300 by wires, respectively.

The first embodiment does not limit several connection points per terminal. For example, as shown in fig. 6 and 12, the first terminal 301 has two connection points, namely, a connection point N and a connection point L (respectively connected to the neutral line and the live line of the commercial power source 901), and the second terminal 302 has four connection points. In addition to the connection points shown in fig. 6 and 12, the first terminal 301 may also have a G connection point (ground connected to the mains supply); the second terminal 302 may also have more connection points (more than four). Two doorbell buttons 902 may be connected when the second terminal 302 has four connection points. When the second terminal 302 has more connecting points, the electronic doorbell can be connected with another electronic doorbell to form a Daisy Chain (Daisy Chain), so that interconnection of a plurality of electronic doorbells is realized. The circuit assembly 300 may support an electronic doorbell with interconnect functionality.

The electronic doorbell can also be provided with other functions by the circuit assembly 300. For example, the doorbell button 902 may be a wireless button. The electronic doorbell can be provided with a pairing button. When the pairing button and the doorbell button 902 are pressed in the same time period, the electronic doorbell can be paired with the doorbell button 902. For another example, by designing the circuit component 300, a situation that a wrong wiring leads to a continuous ringing can be avoided, a situation that a wrong ringing occurs when a video is turned on can be avoided, and a risk of damage to an electronic doorbell caused by continuously pressing the doorbell button 902 can be avoided. Through circuit component 300, electronic doorbell can compatible thing networking doorbell, for the direct power supply of the camera of thing networking doorbell.

The first embodiment does not limit the number of terminals, i.e., the electronic doorbell may have more than two terminals. The terminals connected to the commercial power supply 901 are high voltage terminals, and the remaining terminals are low voltage terminals. The high voltage terminal and the low voltage terminal are located on both sides of the spacer 500. When the electronic doorbell is mounted to a single junction box 600, the high voltage terminal and the low voltage terminal are located in different compartments separated by the partition 500. Typically, the high voltage terminal and the low voltage terminal are a minimum of 6.4 millimeters (0.250 inches) apart.

As shown in fig. 14, the inner side of the panel 700 has a mounting ring 702 matching the size of the speaker 400. Speaker 400 may be placed in mounting ring 702 as shown in fig. 6. Screw holes are provided in the mounting ring 702 in the circumferential direction. Speaker 400 may be secured by screws after being placed into collar 702. Speaker 400 is mounted adjacent to grill 701. The sound emitted from the speaker 400 can be effectively transmitted to the outside through the grill 701.

The inner side of the panel 700 also has four resilient tabs 708 for attachment to the housing 200. The inner side of the housing 200 has four card slots 208 corresponding to the resilient tabs 708. It can be seen from fig. 15 and 16 how the resilient tabs 708 and slots 208 are used to connect the housing 200 to the faceplate 700. Fig. 15 shows a state before connection, and fig. 16 shows a state after connection is completed. As shown in fig. 15, when the panel 700 is brought close to the housing 200, the elastic card 708 is inserted into the housing 200 in the X direction. The resilient tab 708 has a beveled end 703. When the resilient tab 708 moves in the X direction, the beveled end 703 contacts the housing 200. The elastic clip 708 is bent in the M direction by the compression of the housing 200. As shown in fig. 16, after the elastic latch 708 completely enters the interior of the housing 200, the elastic latch 708 is restored to its original shape by its own elasticity and is not bent. The beveled end 703 is located in the card slot 208, and the card slot 208 blocks the movement of the beveled end 703 to realize the clamping.

As shown in fig. 13 and 14, the panel 700 has two second connection holes 707 for connecting the single junction box 600. The housing 200 has a third connection hole 207 (shown in fig. 9 and 10) corresponding to the second connection hole 707, and the single junction box 600 has a fourth connection hole 607 (shown in fig. 4). After the circuit assembly 300 has been fixedly mounted to the inside of the case 200 and the speaker 400 has also been fixedly mounted on the inner side of the panel 700, the case 200 and the partition 500 may be fixedly mounted in the single junction box 600 using the second screw 800. When the junction box is mounted, the second screw 800 passes through the second connection hole 707 of the panel 700 and the third connection hole 207 of the housing 200 and is screwed into the fourth connection hole 607 of the single junction box 600. The fourth connection hole 607 is a threaded hole matched with the second screw 800. Prior to installation, it is necessary to connect the mains power supply 901 to the first terminal 301 and the doorbell button 902 to the second terminal 302, as shown in fig. 5. Before installation, the single junction box 600 is fixedly installed in a wall body, and one end of a wire connected to the commercial power supply 901 and the doorbell button 902 is reserved in the single junction box 600. The reserved end is respectively connected with the first terminal 301 and the second terminal 302, so that the connection of the electronic doorbell with the mains supply 901 and the doorbell button 902 can be realized.

The electronic doorbell shown in fig. 4 and 5 is mounted to the single junction box 600 with the head of the second screw 800 exposed. This may be perceived by some users as aesthetically disturbing. To solve this problem, in the first embodiment, the electronic doorbell may also have a structure shown in fig. 17. The electronic doorbell of fig. 17 comprises a housing 200, a partition 500, an inner panel 710 and an outer panel 711. The inner panel 710 functions the same as the panel 700 in fig. 4 and 5. The inner panel 710 can fixedly connect the housing 200 and the single junction box 600. The outer panel 711 is located at an outer side of the inner panel 710, and is exposed to the outside. The outer panel 711 can cover the inner panel 710, so that the exposed surface is flat and beautiful. Outer panel 711 can be fixedly snapped into inner panel 710 using a structure similar to that shown in fig. 15 and 16. The inner panel 710 has card holes 712 at four corners. An elastic clip (not shown) is provided on the inner surface of the outer panel 711 corresponding to the clip hole 712. After the inclined end of the elastic card passes through the card hole 712, the elastic card can be clamped in the card hole 712, so as to realize clamping.

In the first embodiment, the electronic doorbell may not include the panel 700, the inner panel 710, and the outer panel 711. For the electronic doorbell, whether the panel is arranged or not does not influence the realization of the function of the electronic doorbell. The electronic doorbell with the panel is more attractive. When the electronic doorbell does not have a panel, the second screw 800 is directly threaded into the fourth connecting hole 607 on the single junction box 600 through the third connecting hole 207 on the housing 200, so that the electronic doorbell is fixedly mounted. When the electronic doorbell does not have a faceplate, the housing 200 may be a complete, closed shell structure with a removable side panel. For example, the case 200 may be a rectangular parallelepiped case structure. One side plate constituting the shell structure is detachable to form an opening. Through which the circuit assembly 300 and speaker 400 may be placed and mounted to the interior of the housing structure. After the circuit assembly 300 and speaker 400 are installed, the disassembled side panels are installed back to restore the complete, closed shell structure. A grill is provided on either side of the housing structure and sound emitted by the speaker 400 can be emitted from the grill. The partition 500 may be installed on a side plate opposite to the side plate provided with the grill.

Second embodiment

The second embodiment is an improvement of the separator 500 based on the first embodiment. As shown in fig. 18, the partition 500 is provided with breaking grooves 501. The breaking-off grooves 501 are used to change the dimension of the partition 501 in the depth direction. In fig. 4 to 8 and fig. 17 and 18, the directions are indicated by letters X, Y and Z. Where X denotes a depth direction of the individual junction box 600, Y denotes a direction perpendicular to the above depth direction, and Z denotes a thickness direction of the partition board 500. Changing the size of the partition 501 in the depth direction enables the electronic doorbell to accommodate a single junction box 600 of different depths. As shown in fig. 8, the letters below the figure indicate the size. Where S denotes the depth dimension of the individual junction box 600, T denotes the dimension of the partition plate 500 in the depth direction, and R denotes the dimension of the housing 200 in the depth direction. As can be seen from fig. 8, the dimension S is approximately equal to the sum of the dimension T and the dimension R. When the dimension S is changed, the change in the dimension S can be accommodated by changing the dimension T.

The number of the breaking-off grooves 501 may be one, two, or more. In fig. 18, there are five breaking grooves 501. The user can use any one of the breaking-off grooves 501 to remove a portion of the spacer 500 so that the dimension T of the spacer 500 reaches a desired value. For example, in fig. 18, the user may remove a portion T1 of the partition board 500 using one of the five breaking grooves 502 of the five breaking grooves 501 so that the value of the dimension T of the partition board 500 becomes T2. By using the breaking-off groove 501, a user can break off a part of the partition 500 by hand at an installation site without using other tools, which is very convenient. The breaking grooves 501 enhance the adaptability of the electronic doorbell, so that the electronic doorbell can adapt to single junction boxes 600 with different depths.

It should be noted that due to manufacturing and installation tolerances, the edges of the partition 500 adjacent to the inner wall of the housing 200 are generally not properly aligned. The gap between the rim and the inner wall of the housing 200 can be controlled to within 1.6 mm (0.063 inch).

The breaking-off grooves 501 are provided to allow a user to easily remove a portion of the spacer 500, thereby changing the original size T of the spacer 500. The second embodiment does not limit the specific structure of the breaking-off grooves, and any groove structure that can achieve the above object can be regarded as the breaking-off grooves.

Illustratively, as shown in fig. 18, the breaking-off grooves 501 may be formed by: the material forming the separator 500 is partially removed in the thickness direction (Z direction) of the separator 500 from the upper surface of the separator 500. The removal depth is greater than half the thickness dimension of the separator 500. Illustratively, in fig. 18, the breaking grooves 501 formed in the above manner have a triangular cross section. The edge of the breaking-off groove 501 is in transition connection with the upper surface of the partition plate 500 through a rounded corner structure.

Illustratively, as shown in fig. 18, the breaking grooves 501 may penetrate the partition 500 in the Y direction. This can ensure that the fracture is neat when breaking off. Illustratively, as shown in fig. 18, the breaking grooves 501 are linear (straight line in the Y direction) as a whole, and the different breaking grooves 501 are parallel to each other.

Illustratively, as shown in fig. 19, each breaking groove 501 has a corresponding depth mark 505. Depth markings 505 are provided on the surface of septum 500 and are used to indicate the fitting depth of septum 500. The fitting depth, as shown in fig. 18, refers to the size of the T1 portion of the partition board 500 broken by the breaking groove 502, and the remaining T2 portion, i.e., the value indicated by T2. The depth mark 505 enables a user to clearly see the corresponding adaptation depth of each breaking-off groove 501, so that the required adaptation depth can be conveniently selected.

Third embodiment

The third embodiment is based on the first embodiment, and improves the connection manner of the partition plate 500 and the case 200. The septum 500 can be removably coupled to the housing 200 via a first configuration. The first structure includes a fifth connecting hole 203 and a clamping joint 503 respectively arranged on the housing 200 and the partition 500, as shown in fig. 21.

When the partition board 500 and the housing 200 are in a state of being separated from each other as shown in fig. 22, the snap fitting 503 can be inserted into the connection hole 203, achieving a fixed connection of the partition board 500 and the housing 200 (as shown in fig. 23). When the partition 500 and the housing 200 are in the fixed connection state as shown in fig. 23, the snap-fit joint 503 can be pulled out of the connection hole 203, and the partition 500 and the housing 200 are separated from each other (as shown in fig. 22).

The third embodiment does not limit the specific structures of the coupling hole 203 and the card connector 503. By way of example, they may be the structures shown in fig. 20-23. As shown in fig. 21, the connection hole 203 may be a cylindrical hole. The connection holes 203 can also be seen in fig. 9 and 10. As shown in fig. 22, the card connector 503 includes a cylinder 506 that can be inserted into the connection hole 203. The right end of the cylinder 506 is a fixed end and the left end is an extended end. The left end of the cylinder 506 has a radial protrusion 507. The length U of the perpendicular line of the end of the radial protrusion 507 far away from the central line of the cylinder 506 and the central line of the cylinder 506 is larger than the length of the connecting hole 203. Therefore, when in the fixed connection state as shown in fig. 23, the radial protrusion 507 can prevent the housing 200 and the partition 500 from separating from each other in the direction D, and the two are clamped.

The left end of the cylinder 506 also has an axial cut 508. An axial cutting operation 508 separates the portion of the cylinder 506 near the left end into two opposing moving portions. The two opposite movable portions have elasticity. Therefore, as shown in fig. 22, when the housing 200 and the partition plate 500 approach each other in the direction D, the radial protrusion 507 first comes into contact with the edge of the connection hole 203. Under the compression of the edge (then the inner wall) of the connection hole 203, the two movable portions approach each other in the direction N so that the radial protrusion 507 can pass through the connection hole 203. After the radial protrusion 507 completely passes through the connection hole 203, the two movable portions restore to their original shapes under the action of their own elasticity, so as to realize the clamping connection between the housing 200 and the partition board 500, as shown in fig. 23.

The above paragraph describes the process of inserting the card connector 503 into the connection hole 203. The process of pulling the card connector 503 out of the connection hole 203 is the same. As shown in fig. 23, when the card connector 503 is pulled out of the connection hole 203, the housing 200 and the partition 500 are separated from each other in the direction D. The radial protrusions 507 approach each other in the direction N under the squeezing of the edge of the connection hole 203 and the hole wall, so that the radial protrusions 507 can pass through the connection hole 203, and the separation of the housing 200 from the partition board 500 is achieved.

Illustratively, as shown in fig. 18-21, the separator 500 has support ribs 504. The support ribs 504 are plate-shaped and perpendicular to the main body of the separator 500. The support rib 504 is located between the two card connectors 503. When housing 200 and partition 500 are in a fixed connection state, support rib 504 contacts with the outer wall of housing 200, and can support partition 500, preventing partition 500 from shaking.

Fourth embodiment

The fourth embodiment is based on the first embodiment, and the material and thickness of the separator 500 are defined so as to satisfy the relevant regulations of "UL". Septum 500 may be made of a metallic material where septum 500 is at least 0.4 millimeters (0.016 inches) thick and septum 500 should be grounded. Separator 500 can also be made of vulcanized fiber, where separator 500 has a thickness of at least 0.7 mm (0.028 inches). Septum 500 may also be made from a molded polymeric material where septum 500 has a thickness of at least 0.7 millimeters (0.028 inches) and the temperature rating of septum 500 should be matched to the temperature of interest.

In addition to the material and thickness of the separator 500 satisfying the "UL" specification, the separator 500 also has a Withstand Voltage Test (Dielectric Voltage Test) of "UL" and has a Withstand Voltage capability specified by "UL".

Fifth embodiment

The fifth embodiment is based on the first embodiment, and the material and thickness of the case body 200 and the panel 700 are defined to satisfy the relevant regulation of "UL". "UL 94" and "UL 746" provide test specifications and classifications that can be applied to plastics.

The "UL 746" test may determine the Relative Temperature Index (RTI) rating of the material. The RTI of a material is the maximum use temperature of the material. At this use temperature, some key properties of the material are not unacceptably compromised by chemical degradation. Key properties of the material include electrical insulation properties, mechanical impact properties and strength properties. Correspondingly, the RTI grade is divided into an RTI electrical grade, an RTI mechanical impact grade and an RTI strength grade. By way of example, a material has an RTI electrical rating of 80 deg.C, indicating that the material does not suffer unacceptable deterioration of electrical insulation properties at a temperature of 80 deg.C.

"UL 94" divides the material into 12 flame retardant ratings based on the flame test results. These ratings may characterize the combustion characteristics of the material after exposure of a sample of the material to a specified test flame under controlled experimental conditions. 6 of the 12 flame retardant ratings are associated with common materials of construction of housings, structural components and insulators for consumer electronics, 5VA, 5VB, V-0, V-1, V-2 and HB, respectively. They are arranged in order of decreasing flame retardant properties, i.e. the material rated 5VA is the best flame retardant property, 5VB is the second flame retardant property, and by analogy HB is the worst flame retardant property.

The housing 200 and the faceplate 700 may be formed of acrylonitrile butadiene styrene, in which case the thickness of the housing 200 and the faceplate 700 is at least 2.2 millimeters. A1.5 mm thick acrylonitrile butadiene styrene material has at least a V-0 flame retardant rating as defined by "UL 94," an RTI electrical rating as defined by "UL 746" of at least 80 ℃, "an RTI mechanical impact rating as defined by" UL746 "of at least 80 ℃, and an RTI strength rating as defined by" UL746 "of at least 80 ℃.

The housing 200 and the faceplate 700 may be made of a polycarbonate/acrylonitrile butadiene styrene alloy material, with the thickness of the housing 200 and the faceplate 700 being at least 2.2 mm. A1.7 mm thick polycarbonate/acrylonitrile butadiene styrene alloy material having at least a V-2 flame retardant rating of "UL 94," an RTI electrical rating of at least 60 ℃ of "UL 746," an RTI mechanical impact rating of at least 60 ℃ of "UL 746," and an RTI strength rating of at least 60 ℃ of "UL 746.

In fig. 4 to 24, some drawings have cross-sectional symbols. These section symbols are only used to distinguish different elements and do not represent the material of the elements.

The above description is only exemplary of the present application and should not be taken as limiting the present application, as any modification, equivalent replacement, or improvement made within the spirit and principle of the present application should be included in the protection scope of the present application.

Claims

1. Electronic doorbell, its characterized in that includes:

a housing capable of being placed in a single junction box;

a circuit assembly mounted inside the housing and having a voltage conversion module, the circuit assembly having a first terminal and a second terminal, the first terminal and the second terminal being capable of protruding outside the housing and being distributed at different locations of the housing;

a speaker located inside the housing and electrically connected to the circuit assembly; and

a separator plate attached to the housing and located outside the housing, the separator plate being located between the first terminal and the second terminal;

wherein, after the housing and the partition are put into the single junction box, the inner space of the single junction box is divided into at least two compartments by the partition, and the first terminal and the second terminal are located in different compartments.

2. The electronic doorbell of claim 1, wherein the single junction box is placed in the housing and the partition along a depth direction of the single junction box, and the partition is provided with breaking grooves for changing a dimension of the partition along the depth direction to accommodate the single junction boxes of different depths.

3. The electronic doorbell of claim 2 wherein the severing groove partially removes material forming the partition in a thickness direction of the partition starting from one surface of the partition.

4. The electronic doorbell of claim 2 or 3 wherein the severing slot extends through the partition in a direction perpendicular to the depth direction.

5. The electronic doorbell of claim 2 or 3, wherein the severing grooves are rectilinear and are at least two and parallel to each other.

6. The electronic doorbell of claim 5 wherein each severing groove has a corresponding depth marking disposed on a surface of the partition, the depth marking indicating a mating depth of the partition, the mating depth being a dimension in the depth direction of a remainder of the partition after a portion of the partition has been severed using one severing groove.

7. The electronic doorbell of claim 1 wherein the partition is removably connected to the housing.

8. The electronic doorbell of claim 7 wherein the partition is removably connected to the housing by a first structure, the first structure comprising a connection hole and a snap-fit joint disposed on the housing and the partition, respectively; wherein:

when the partition plate and the shell are in a mutually separated state, the clamping head can be inserted into the connecting hole to realize the fixed connection of the partition plate and the shell;

when the partition plate and the shell are in a fixed connection state, the clamping head can be pulled out of the connecting hole, and the partition plate and the shell are separated from each other.

9. The electronic doorbell of claim 8 wherein said snap connector comprises a cylinder insertable into said connection hole, said cylinder having a first end that is a fixed end and a second end that is an extended end; wherein:

the extension end is provided with a radial bulge, one end of the radial bulge, which is far away from the cylinder, and the length of a vertical connecting line of the radial bulge and the center line of the cylinder is greater than the radius of the connecting hole;

the extending end is provided with an axial cutting groove, the part of the cylinder close to the extending end is divided into two opposite movable parts by the axial cutting groove, and the movable parts have elasticity.

10. The electronic doorbell of claim 1 wherein the housing has an opening, the electronic doorbell further comprising a faceplate removably attached to the housing, the faceplate being attached to the housing to close the opening.