Integrated emergency switch

Abstract

The utility model discloses an integrated emergency switch, which comprises a shell, a key switch, a timer, an electronic circuit board assembly and an alternating current contactor, the shell comprises an upper shell and a lower shell which are mutually buckled and connected in a combined manner, the key switch and the timer are arranged in the upper shell, and the electronic circuit board assembly is arranged in the lower shell. The electronic circuit board assembly and the alternating current contactor are arranged in the lower shell, the key switch and the timer are respectively and electrically connected with the electronic circuit board assembly, and the electronic circuit board assembly is electrically connected with the alternating current contactor. According to the utility model, the key switch, the timer and the alternating current contactor are integrated in the same switch shell at the same time, mutual linkage control is realized through the electronic circuit board assembly, the arrangement of multiple independent modules in the traditional design is replaced, and the integration level and the use portability are improved.

Description

Technical Field

[0001] This utility model belongs to the field of emergency switches and relates to an integrated emergency switch. Background Technology

[0002] Currently, common emergency switchgear on the market typically adopts a discrete layout for the integration of independent functional modules such as key switches, timers, and AC contactors at the system architecture design level. These modules are dispersed and deployed in distribution boxes or larger control units. This non-integrated design requires redundant wiring between components to achieve electrical connections, which not only significantly increases the risk of poor contact and reduces the overall reliability of the system, but also increases the cost of wiring. The discrete architecture also requires multiple spaces for equipment installation, resulting in significant space utilization losses in miniaturized power distribution scenarios. In addition, the installation of multiple modules requires the configuration of dedicated isolation brackets, further increasing installation costs. Utility Model Content

[0003] In order to overcome the shortcomings of the prior art, this utility model provides an integrated emergency switch.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] An integrated emergency switch includes a housing, a key switch, a timer, an electronic circuit board assembly, and an AC contactor. The housing includes an upper shell and a lower shell that are interlocked. The key switch and the timer are installed in the upper shell, and the electronic circuit board assembly and the AC contactor are disposed in the lower shell. The key switch and the timer are electrically connected to the electronic circuit board assembly, and the electronic circuit board assembly is electrically connected to the AC contactor.

[0006] Furthermore, the lower housing is provided with a first chamber for accommodating the electronic circuit board assembly and a second chamber for accommodating the AC contactor, and a partition is provided between the first chamber and the second chamber.

[0007] Furthermore, a first connecting line and a second connecting line are provided between the electronic circuit board assembly and the AC contactor for transmitting key switch electrical signals and timer electrical signals, respectively.

[0008] Furthermore, the key switch and the timer are installed inside the upper housing, and a keyhole and a timer adjustment knob are respectively formed on the outside of the upper housing.

[0009] Furthermore, the AC contactor is provided with an A1 coil terminal and an A2 coil terminal for cascading external contactors.

[0010] Furthermore, the lower shell is provided with shoulder buckles on both sides for mounting multiple terminals, and the shoulder buckles are fixed to the lower shell by a snap-fit ​​connection.

[0011] Furthermore, the outer end face of the shoulder buckle is provided with multiple grooves.

[0012] Furthermore, a baffle is also provided inside the lower shell. The baffle is inserted and fixed to the lower shell. The baffle protrudes from the opening of the lower shell at a set height. A protruding part is provided on the inner side of the baffle that protrudes laterally into the lower shell.

[0013] Furthermore, the baffle is disposed on the inner wall of the first chamber, and there are two baffles arranged opposite each other, with the protrusion located above the electronic circuit board assembly.

[0014] In summary, the advantages of this utility model are as follows:

[0015] This utility model integrates a key switch, a timer, and an AC contactor into the same switch housing, and achieves mutual linkage control through electronic circuit board components, replacing the multiple independent modules in the traditional design, thus improving integration and portability.

[0016] By integrating all functions into the same switch housing, the housing structure, installation structure, and wiring structure are simplified, the space occupied by each module is reduced, making it suitable for applications with limited space. It also reduces the complexity of installation and operation, improves the user experience, reduces the possibility of failure, and improves the stability and reliability of the system.

[0017] By setting up expandable terminals for connecting additional contactors, multiple AC contactors can be cascaded, improving practicality and scalability. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the external structure of the emergency switch of this utility model.

[0019] Figure 2 for Figure 1 A schematic diagram of the internal structure of the emergency switch.

[0020] Figure 3 for Figure 2 A structural diagram from another perspective.

[0021] Figure 4 for Figure 2 An exploded view of the internal structure of the emergency switch.

[0022] Figure 5 for Figure 4 Center view.

[0023] Figure 6 This is a structural diagram of the key switch, timer, AC contactor, and electronic circuit board assembly.

[0024] The diagram is labeled as follows: 11. Upper shell; 12. Lower shell; 13. Shoulder buckle; 14. Baffle; 2. Electronic circuit board assembly; 21. Key switch; 22. Timer; 23. Terminal; 231. A1 coil terminal; 232. A2 coil terminal; 3. AC contactor. Detailed Implementation

[0025] The following specific examples illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification. This utility model can also be implemented or applied through other different specific embodiments, and various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of this utility model. It should be noted that, unless otherwise specified, the following embodiments and features described therein can be combined with each other.

[0026] It should be noted that the illustrations provided in the following embodiments are only schematic representations of the basic concept of the present invention. Therefore, the drawings only show the components related to the present invention and are not drawn according to the number, shape and size of the components in actual implementation. In actual implementation, the form, quantity and proportion of each component can be arbitrarily changed, and the layout of the components may also be more complex.

[0027] In this embodiment of the invention, all directional indicators (such as up, down, left, right, front, back, horizontal, vertical, etc.) are only used to explain the relative positional relationship and movement of the components in a specific state. If the specific state changes, the directional indicator will also change accordingly.

[0028] Due to installation errors and other reasons, the parallel relationship referred to in the embodiments of this utility model may actually be an approximate parallel relationship, and the perpendicular relationship may actually be an approximate perpendicular relationship.

[0029] This utility model provides an integrated emergency switch, including an emergency switch housing, a key switch 21, a timer 22, and an AC contactor 3. The key switch 21, timer 22, and AC contactor 3 are all integrated into the housing, making the emergency switch multifunctional, small in size, easy to install, and safe to use.

[0030] Reference Figures 1 to 3As shown, the outer shell includes a lower shell 12 and an upper shell 11. The lower shell 12 has a cavity for accommodating the electronic circuit board assembly 2 and the AC contactor 3. The upper shell 11 has a cavity for accommodating the key switch 21 and the timer 22. The upper shell 11 and the lower shell 12 are connected by a snap-fit ​​assembly to seal the internal cavity.

[0031] The lower shell 12 includes a first chamber for installing the electronic circuit board assembly 2 and a second chamber for installing the AC contactor 3. A partition is provided between the first chamber and the second chamber to separate the AC contactor 3 from the electronic circuit board assembly 2, increase the creepage distance, and make the components more compatible with the corresponding chambers, resulting in better stability and higher space utilization.

[0032] The key switch 21 and the timer 22 are fixedly installed inside the upper shell 11, and keyhole positions and timer adjustment knobs are respectively provided on the outer surface of the upper shell 11. Inside the shell, the key switch 21 and the timer 22 are connected to the electronic circuit board assembly 2 through corresponding connectors.

[0033] The keyhole includes rotary positions for "TEST" and "RESET", used for engaging and disengaging the contactor, respectively; the timer 22's timing adjustment knob adopts a three-position cam structure, corresponding to timing intervals of 60min / 90min / 120min.

[0034] The electronic circuit board assembly 2 includes a circuit board and a microcontroller. It collects electrical signals from the key switch 21 and the timer 22. The circuit board is connected to the AC contactor 3 through a first connection line and a second connection line. It transmits the electrical signals triggered by the key switch 21 and the timer 22 to the AC contactor 3 through the first connection line and the second connection line, respectively, to control the operation of the AC contactor 3 to turn it on, off, and reset, and to control the test operation time of the AC contactor 3.

[0035] Reference Figure 4 and Figure 6 As shown, the outer side of the lower shell 12 is provided with multiple terminals 23 that are respectively led out from the circuit board and the AC contactor 3. The two sides of the lower shell 12 are provided with shoulder buckles 13, which are fixedly installed with the lower shell 12 by a snap-fit ​​connection. The shoulder buckles 13 are provided with multiple rows of mounting slots for fixing the multiple terminals 23 and cables to prevent loosening. The outer end face of the shoulder buckles 13 is provided with multiple grooves to increase the outer surface area of ​​the shoulder buckles 13, effectively improve heat dissipation efficiency, and increase the friction when holding them.

[0036] Furthermore, the AC contactor 3 is also provided with A1 coil terminal 231 and A2 coil terminal 232 for cascading one or more additional contactors to increase expandability. A1 coil terminal 231 and A2 coil terminal 232 are connected to the circuit board via wires.

[0037] Inside the cavity of the lower shell 12, especially in the first chamber, a baffle 14 is also provided, as shown in the reference. Figure 4 and Figure 5 As shown, baffle 14 is disposed on the inner side of the first chamber and is inserted and fixed downward along the inner wall of the first chamber. Preferably, two baffles 14 are disposed and are arranged opposite each other. The top of the baffle 14 protrudes from the opening of the first chamber by a set height. The increased height increases the creepage distance between the electronic circuit board assembly 2 and the external wiring, forming high-voltage isolation protection. The inner side of the baffle 14 is provided with a protruding part that protrudes laterally. The protruding part is located above the circuit board and forms a certain obstruction to ensure the stability of the inner circuit board and prevent loosening and accidental contact.

[0038] Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without inventive effort should fall within the protection scope of this utility model.

Claims

1. An integrated emergency switch, characterized in that, The device includes a housing, a key switch (21), a timer (22), an electronic circuit board assembly (2), and an AC contactor (3). The housing includes an upper shell (11) and a lower shell (12) that are connected by a snap-fit ​​assembly. The key switch (21) and the timer (22) are installed in the upper shell (11). The electronic circuit board assembly (2) and the AC contactor (3) are disposed in the lower shell (12). The key switch (21) and the timer (22) are electrically connected to the electronic circuit board assembly (2) respectively. The electronic circuit board assembly (2) is electrically connected to the AC contactor (3).

2. The integrated emergency switch according to claim 1, characterized in that, The lower housing (12) is provided with a first chamber for accommodating the electronic circuit board assembly (2) and a second chamber for accommodating the AC contactor (3), and a partition is provided between the first chamber and the second chamber.

3. An integrated emergency switch according to claim 2, characterized in that, The electronic circuit board assembly (2) and the AC contactor (3) are provided with a first connecting line and a second connecting line for transmitting the electrical signal of the key switch (21) and the electrical signal of the timer (22), respectively.

4. An integrated emergency switch according to claim 1, characterized in that, The key switch (21) and the timer (22) are installed inside the upper shell (11), and a keyhole and a timer adjustment knob are respectively formed on the outside of the upper shell (11).

5. An integrated emergency switch according to claim 1, characterized in that, The AC contactor (3) is provided with an A1 coil terminal (231) and an A2 coil terminal (232) for cascading external contactors.

6. An integrated emergency switch according to claim 1, characterized in that, The lower shell (12) is provided with shoulder buckles (13) on both sides for mounting multiple terminals (23), and the shoulder buckles (13) are fixed to the lower shell (12) by a snap-fit ​​connection.

7. An integrated emergency switch according to claim 6, characterized in that, The outer end face of the shoulder buckle (13) is provided with multiple grooves.

8. An integrated emergency switch according to claim 2, characterized in that, A baffle (14) is also provided inside the lower shell (12). The baffle (14) is inserted and fixed to the lower shell (12). The baffle (14) protrudes from the opening of the lower shell (12) at a set height. The inner side of the baffle (14) is provided with a protrusion that protrudes laterally into the lower shell (12).

9. An integrated emergency switch according to claim 8, characterized in that, The baffle (14) is disposed on the inner wall of the first chamber. There are two baffles (14) arranged opposite to each other. The protrusion is located above the electronic circuit board assembly (2).

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