Intelligent display mosquito-killing liquid heater and control circuit thereof

Abstract

The utility model relates to the technical field of mosquito eradication liquid heaters, in particular to an intelligent display mosquito eradication liquid heater and a control circuit thereof, and the intelligent display mosquito eradication liquid heater comprises a shell and a digital display module; the digital display module is arranged in the shell, and the digital display module emits light and displays through a projection display screen of the shell; the digital display module is integrated with at least one digital-bit nixie tube and at least one mode lamp; the problem that the display cost of the timing mode and the working state thereof is high is solved.

Description

Technical Field

[0001] This utility model relates to the field of mosquito repellent liquid heater technology, and in particular to a smart mosquito repellent liquid heater and its control circuit. Background Technology

[0002] Currently, mosquito repellent heaters have limited functionality (only heating and vaporizing mosquito repellent) and few control modes (only multiple timer modes are available). In order to reduce manufacturing costs, indicator lights are usually used to show users the current timer setting of the mosquito repellent heater. For example, the outer casing of the mosquito repellent heater is engraved with text indicating multiple timer settings (such as four-hour timer, eight-hour timer, etc.), and there is a corresponding indicator light next to the text. The indicator light that is lit indicates the current timer setting.

[0003] However, this timer setting means users cannot know how long the timer has been running or the remaining time of the mosquito repellent heater, hindering their ability to perform subsequent actions (such as canceling the timer or turning off the heater). This results in a poor user experience. Furthermore, adding displays such as LCD, LED, or OLED screens to show the timer mode and its operating status (countdown) would significantly increase manufacturing costs. For a product like a mosquito repellent heater with limited functionality and control modes, increased manufacturing costs would lead to higher selling prices, weakening its competitiveness and ultimately proving counterproductive. Utility Model Content

[0004] To address the aforementioned shortcomings, the purpose of this invention is to propose an intelligent mosquito repellent liquid heater and its control circuit, which solves the problem of high cost in implementing a timer mode and displaying its working status.

[0005] To achieve this objective, the present invention adopts the following technical solution:

[0006] A smart mosquito repellent heater includes a housing and a digital display module; the digital display module is disposed inside the housing, and the digital display module emits light through the projection screen of the housing to display a signal;

[0007] The digital display module integrates at least one digital tube with at least one digit and at least one mode light.

[0008] Furthermore, the interior of the housing is provided with a module mounting section, which divides the internal space of the housing into a display area and a heating area;

[0009] The housing has a display opening in the display area, the digital display module is fixedly installed in the display area on the module mounting part, the projection display screen is closed and covered by the display opening, and the display surface of the digital display module faces the projection display screen.

[0010] Furthermore, the outer surface of the housing is curved, and the projection display screen is curved or the projection display screen is tilted and covers the display opening;

[0011] The display opening occupies at least one-fifth of the surface area of ​​the housing.

[0012] Furthermore, the housing includes an upper housing and a lower housing; a heating element is provided in the center of the lower housing, the module mounting element is disposed on the lower housing against the heating element, a lower display notch is provided on the front of the lower housing corresponding to the module mounting element, and an upper display notch is provided on the upper housing corresponding to the lower display notch;

[0013] The upper housing and the lower housing are fastened together, and the upper display notch and the lower display notch together form the display opening; the top of the module mounting part abuts against the inner top surface of the upper housing, the upper housing and the lower housing relative to the front side of the module mounting part form the display area, and the upper housing and the lower housing relative to the rear side of the module mounting part form the heating area.

[0014] Furthermore, the lower housing is provided with a plurality of lower connecting posts along the outer side of the heating part, and the upper housing is provided with upper connecting posts corresponding to the lower connecting posts. The upper connecting posts and the lower connecting posts are fixedly connected in a one-to-one correspondence.

[0015] The module mounting section includes a back plate and two slide rails; one of the lower connecting posts is located at the upper left corner of the heating section, and the other connecting post opposite to this connecting post is located at the upper right corner of the heating section. The back plate is fixedly connected between the two lower connecting posts, and the upper part of the back plate extends along the upper connecting post to the inner top surface of the upper housing; the two slide rails are respectively located on the two lower connecting posts, and the slide tracks of the two slide rails are opposite to and parallel to the back plate.

[0016] Furthermore, the digital display module includes an electronic control board and a digital display device; the digital display device is integrated on the front of the electronic control board, the left and right sides of the electronic control board are respectively inserted into the bottom of the lower housing along the slide rail, the rear of the electronic control board abuts or is close to the front of the back plate, and the display surface of the digital display device faces the projection display screen.

[0017] Furthermore, the digital display module also includes a light-emitting device; the light-emitting device is integrated at the bottom of the electronic control board, and a limiting seat is provided on the bottom surface of the lower housing corresponding to the light-emitting device. The limiting seat has a through hole leading to the outside of the housing, and the light-emitting device is limited and installed on the limiting seat, with the light source part of the light-emitting device limited within the through hole.

[0018] Furthermore, the housing also includes a power connector; the upper housing and the lower housing are respectively provided with an upper rotating mounting position and a lower rotating mounting position corresponding to the mounting portion of the power connector; the upper rotating mounting position and the lower rotating mounting position together form a rotating mounting position, and the mounting portion of the power connector is rotatably mounted within the rotating mounting position;

[0019] The lower rotating mounting position is provided with a heat insulation baffle to separate the heating part and the mounting part of the power connector.

[0020] Furthermore, the bottom surface of the lower housing has at least one heat dissipation window corresponding to the heating part, which connects the heating part and the outside of the housing.

[0021] Furthermore, the housing also includes a control button; the operating part of the control button moves through the lower housing and is located below the lower display notch; the contact part of the control button is close to the button trigger position of the electronic control board.

[0022] A control circuit for a smart mosquito repellent heater is provided, which is applied to the aforementioned smart mosquito repellent heater. It includes a button circuit, a digital tube scanning circuit, a heating circuit, a light circuit, and a microcontroller. The button circuit, the digital tube scanning circuit, the heating circuit, and the light circuit are all electrically connected to the microcontroller.

[0023] When the button circuit inputs a light signal to the microcontroller, the microcontroller controls the light circuit to drive the light to emit light;

[0024] When the button circuit inputs different countdown level heating signals to the microcontroller, the microcontroller controls the heating circuit to drive heating according to the preset heating time corresponding to the countdown level, and controls the digital tube scanning circuit to scan and display the countdown level and the preset heating time.

[0025] The technical solution provided by this utility model can include the following beneficial effects:

[0026] To achieve intelligent display effects at a low cost, a low-cost digital display module (usually integrated with components such as digital tubes and digitizers, which are technologically mature, provide stable display, and are low in cost) is used. Then, the display light from the digital display module is diffused through a projection screen to enhance the display effect and approximate the display effect of an LCD screen. At the same time, a digit-based digitizer and at least one mode LED are used to display the timing mode and its working status (i.e., the countdown process). Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the structure of a smart mosquito repellent liquid heater according to one embodiment of this utility model. Figure 1 .

[0028] Figure 2 Is it like this? Figure 1 The diagram shows an assembly drawing of a smart mosquito repellent heater.

[0029] Figure 3 Is it like this? Figure 2 The diagram shows the structure of the lower shell.

[0030] Figure 4 Is it like this? Figure 2 The diagram shows the structure of the upper shell.

[0031] Figure 5 Is it like this? Figure 1 The diagram shows the structure of a smart mosquito repellent liquid heater. Figure 2 .

[0032] Figure 6 This is a schematic diagram of the control circuit of a smart mosquito repellent heater according to one embodiment of this utility model.

[0033] The components include: housing 1, digital display module 2, projection display screen 3, display opening 4, module mounting part 5, display area 6, heating area 7, upper housing 11, lower housing 12, heating part 121, lower display notch 122, upper display notch 111, lower connecting column 123, upper connecting column 112, back plate 51, slide rail 52, electronic control board 21, digital display device 22, light-emitting device 23, limit seat 124, power connector 14, upper rotating mounting position 113, lower rotating mounting position 125, heat insulation baffle 1251, heat dissipation window 126, control button 13, button circuit 10, digital tube scanning circuit 20, heating circuit 30, lighting circuit 40, and microcontroller 50. Detailed Implementation

[0034] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0035] In the description of this utility model, it should be understood that the terms "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description. They do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on this utility model. Furthermore, features defined with "first" and "second" may explicitly or implicitly include one or more of these features, used to distinguish and describe features, without any order or emphasis.

[0036] In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0037] In the description of the embodiments of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of this utility model according to the specific circumstances.

[0038] The following is combined Figures 1 to 6 This invention describes an intelligent mosquito repellent liquid heater and its control circuit according to an embodiment of the present invention.

[0039] Example 1

[0040] A smart mosquito repellent heater includes a housing 1 and a digital display module 2; the digital display module 2 is disposed inside the housing 1, and the digital display module 2 emits light through the projection display screen 3 of the housing 1 to display the information.

[0041] The digital display module 2 integrates at least one digital tube with at least one digit and at least one mode light.

[0042] This utility model proposes a preferred embodiment of a smart mosquito repellent liquid heater, such as... Figure 1 and 2 As shown, to achieve intelligent display effects at a low cost, a low-cost digital display module 2 (usually integrated from components such as digital tubes and seven-segment displays, with mature technology, stable display, and low cost) is used. Then, the display light from the digital display module 2 is diffused through the projection display screen 3 to enhance the display effect, approaching the display effect of an LCD screen. Simultaneously, a seven-segment display with at least one digit (such as a seven-segment display) is used... Figure 2The digital display module 2 has two digits (enabling a two-digit countdown) and at least one mode indicator (such as...). Figure 2 The digital display module 2 has three mode lights below the digital digits, which can display three modes, such as four-hour timer, eight-hour timer and twelve-hour timer, to realize the display of the timer mode and its working status (i.e. countdown process).

[0043] Furthermore, the interior of the housing 1 is provided with a module mounting section 5, and the module mounting section 5 divides the interior space of the housing 1 to form a display area 6 and a heating area 7;

[0044] The housing 1 has a display opening 4 in the display area 6, the digital display module 2 is fixedly installed in the module mounting part 5 in the display area 6, and the projection display screen 3 is closed and covered by the display opening 4, with the display surface of the digital display module 2 facing the projection display screen 3.

[0045] After the mosquito repellent liquid heater is installed on the mosquito repellent liquid bottle, the evaporation rod of the mosquito repellent liquid bottle needs to be heated to make the mosquito repellent liquid evaporate and achieve the purpose of killing mosquitoes. If a display screen is added, the display screen will be easily damaged by heat.

[0046] In this embodiment, to prevent the digital display module 2 from being damaged by heat, a module mounting part 5 is added for mounting the digital display module 2. Simultaneously, the module mounting part 5 divides the internal space of the housing 1 to form a display area 6 and a heating area 7. Figure 2 (The red dotted line in the middle is the dividing line). Then, the digital display module 2 is installed in the display area 6 to isolate the heat conduction of the heating area 7 by using the module mounting part 5.

[0047] Furthermore, the outer surface of the housing 1 is curved, and the projection display screen 3 is curved or the projection display screen 3 is tilted and covered on the display opening 4;

[0048] The opening 4 occupies at least one-fifth of the surface area of ​​the shell 1.

[0049] In this embodiment, the curved housing and the compatible curved or tilted projection display screen, along with a sufficiently large display opening area, allow the projection display screen 3 to diffuse the light from the digital display module 2, thus expanding the display angle (i.e., not limited to viewing directly to see the content clearly). This makes the information more eye-catching and easier to observe, further enhancing the user experience. Simultaneously, the curved design aligns with modern product aesthetic trends, improving the product's visual appeal.

[0050] Furthermore, the housing 1 includes an upper housing 11 and a lower housing 12; a heating part 121 is provided in the center of the lower housing 12, and the module mounting part 5 is disposed on the lower housing 12 with its back against the heating part 121. The lower housing 12 is provided with a lower display notch 122 in front of the module mounting part 5, and the upper housing 11 is provided with an upper display notch 111 in front of the lower display notch 122.

[0051] The upper housing 11 and the lower housing 12 are fastened together, and the upper display notch 111 and the lower display notch 122 together form a display opening 4; the top of the module mounting part 5 abuts against the inner top surface of the upper housing 11, the upper housing 11 and the lower housing 12 relative to the front side of the module mounting part 5 form a display area 6, and the upper housing 11 and the lower housing 12 relative to the rear side of the module mounting part 5 form a heating area 7.

[0052] In this embodiment, in order to make the digital display module 2 avoid the heating zone 7, the housing 1 adopts a split design of upper housing 11 and lower housing 12 for easy assembly and maintenance. The module mounting part 5 is placed on the lower housing 12 with its back against the heating part 121. After the upper housing 11 and lower housing 12 are fastened together, the top of the module mounting part 5 abuts against the inner top surface of the upper housing 11, thus forming a reasonable layout of the display area 6 and the heating zone 7, making the structure of the intelligent mosquito repellent heater more compact and reasonable, while being compatible with display and heating functions.

[0053] Furthermore, the lower housing 12 is provided with a plurality of lower connecting posts 123 along the outer side of the heating part 121, and the upper housing 11 is provided with an upper connecting post 112 corresponding to the lower connecting posts 123. The upper connecting post 112 and the lower connecting post 123 are fixedly connected in a one-to-one correspondence.

[0054] The module mounting section 5 includes a back plate 51 and two slide rails 52; one lower connecting post 123 is located at the upper left corner of the heating section 121, and the other connecting post 123 opposite to this connecting post 123 is located at the upper right corner of the heating section 121. The back plate 51 is fixedly connected between the two lower connecting posts 123, and the upper part of the back plate 51 extends along the upper connecting post 112 to the inner top surface of the upper housing 11; the two slide rails 52 are respectively located on the two lower connecting posts 123, and the slides of the two slide rails 52 are opposite to and parallel to the back plate 51.

[0055] In this embodiment, as Figure 2 and 3 As shown, by cleverly utilizing the positional relationship between the lower connecting post 123 and the upper connecting post 112 and the heating part 121 after the upper housing 11 and lower housing 12 are fastened together, the backing plate 51 and the slide rail 52 are set up in this way, providing a stable and reliable support structure for the fixed installation of the digital display module 2, while also providing a sufficiently large isolation barrier for the digital display module 2. More importantly, this design of the module mounting part 5 also facilitates the disassembly and maintenance of the digital display module 2, reducing the product's maintenance costs.

[0056] Furthermore, the digital display module 2 includes an electronic control board 21 and a digital display device 22; the digital display device 22 is integrated on the front of the electronic control board 21, and the left and right sides of the electronic control board 21 are respectively inserted into the bottom of the lower housing 12 along the slide rail 52. The rear of the electronic control board 21 abuts or is close to the front of the backing plate 51, and the display surface of the digital display device 22 faces the projection display screen 3.

[0057] In this embodiment, a digital display module 2 is formed by integrating a digital display device 22 into an electronic control board 21. The plate-like structure of the electronic control board 21 can be used to connect to the lower housing 12 via a slide rail 52, making the installation of the digital display module more stable and reliable. At the same time, the rear of the electronic control board 21 abuts or is close to the backing plate 51, further enhancing the stability of the digital display module. More importantly, the integration of the digital display device 22 at the front of the electronic control board 21 allows the display surface of the digital display device 22 to face the projection display screen 3, ensuring that the displayed information is clearly visible.

[0058] Furthermore, the digital display module 2 also includes a light-emitting device 23; the light-emitting device 23 is integrated at the bottom of the electronic control board 21, and a limiting seat 124 is provided on the bottom surface of the lower housing 12 corresponding to the light-emitting device 23. The limiting seat 124 is provided with a through hole leading to the outside of the housing, and the light-emitting device 23 is limited and installed in the limiting seat 124, with the light source part of the light-emitting device 23 limited within the through hole.

[0059] In this embodiment, since the digital display module 2 is located in the display area 6, its working stability is greatly improved. A light-emitting device 23 can be added to provide illumination through the through hole of the limiting seat 124, thereby expanding the general lighting function or night light function of the intelligent mosquito repellent heater (since the intelligent mosquito repellent heater is usually plugged into a socket or night light socket for mosquito repellent, this position is convenient for general lighting or night light illumination). At the same time, after the light-emitting device 23 is limited and installed in the limiting seat 124, the limiting seat 124 can play a certain limiting and supporting role for the electronic control board 21, making the installation stability of the digital display module 2 higher.

[0060] Furthermore, the housing 1 also includes a power connector 14; the upper housing 11 and the lower housing 12 are respectively provided with an upper rotating mounting position 113 and a lower rotating mounting position 125 corresponding to the mounting part of the power connector 14; the upper rotating mounting position 113 and the lower rotating mounting position 125 together form a rotating mounting position, and the mounting part of the power connector 14 is rotatably mounted in the rotating mounting position.

[0061] The lower rotating mounting position 125 is provided with a heat insulation baffle 1251 to separate the mounting part of the heating part 121 and the mounting part of the power connector 14.

[0062] In this embodiment, as Figure 3 and 4 As shown, in order to allow the smart mosquito repellent heater to adjust its angle for evaporating mosquito repellent or providing lighting after being plugged into the socket, its power connector 14 is preferably rotatable; at the same time, in order to prevent the power connector 14 from being damaged by heat, a heat insulation baffle 1251 is provided at the lower rotating mounting position 125 to separate the heating part 121 and the mounting part of the power connector 14.

[0063] Furthermore, the bottom surface of the lower housing 12 has at least one heat dissipation window 126 that connects the heating part 121 and the outside of the housing.

[0064] In this embodiment, as Figure 5 As shown, in order to extend the service life of the intelligent mosquito repellent heater and further reduce the impact of the heat generated by the heating part 121 on the display area 6, at least one heat dissipation window 126 is provided on the bottom surface of the lower housing 12 corresponding to the heating part 121 to connect the heating part 121 and the outside of the housing, thereby improving the heat dissipation efficiency of the heating part 121.

[0065] Furthermore, the housing 1 also includes a control button 13; the operating part of the control button 13 moves through the lower housing 12, and the operating part of the control button 13 is located below the lower display notch 122; the contact part of the control button 13 is close to the button trigger position of the electronic control board 21.

[0066] In this embodiment, based on the installation position of the electronic control board 21, the control button 13 is designed in such a way that it can ensure the accuracy and sensitivity of the electrical triggering of the electronic control board 21.

[0067] Example 2

[0068] A control circuit for a smart mosquito repellent heater is provided, which is applied to the aforementioned smart mosquito repellent heater. It includes a button circuit 10, a digital tube scanning circuit 20, a heating circuit 30, a light circuit 40, and a microcontroller 50. The button circuit 10, the digital tube scanning circuit 20, the heating circuit 30, and the light circuit 40 are electrically connected to the microcontroller 50, respectively.

[0069] When the button circuit 10 inputs a light signal to the microcontroller 50, the microcontroller 50 controls the light circuit 40 to drive the light to shine.

[0070] When the button circuit 10 inputs different countdown level heating signals to the microcontroller 50, the microcontroller 50 controls the heating circuit 30 to drive heating according to the preset heating time corresponding to the countdown level, and controls the digital tube scanning circuit 20 to scan and display the countdown of the countdown level and the preset heating time.

[0071] In this embodiment, a preferred embodiment of the control circuit for a smart mosquito repellent liquid heater is also proposed, such as... Figure 6 As shown, by adding a digital display module 2 to the intelligent mosquito repellent heater, the intelligent mosquito repellent heater can have richer control modes and display functions, thereby improving the product's intelligence level and user experience.

[0072] It should be noted that the button circuit 10 can be a conventional application circuit for various types of buttons; the digital tube scanning circuit 20 can be a conventional application circuit for various digital tubes; the heating circuit 30 can be a PTC heating circuit controlled by a silicon controlled rectifier; and the light circuit 40 can be a conventional light-emitting diode control circuit. The specific circuit structure of each circuit is not limited here, as long as the above control logic can be implemented.

[0073] Other components and operations of the intelligent mosquito repellent liquid heater and its control circuit according to the embodiments of this utility model are known to those skilled in the art and will not be described in detail here.

[0074] In the description of this specification, references to terms such as "embodiment," "example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0075] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A smart mosquito repellent liquid heater, characterized in that: The display module is integrated with at least one digital tube of a digital bit and at least one mode lamp. The inside of the shell is provided with a module mounting portion, and the module mounting portion divides the inside space of the shell into a display area and a heating area.

2. The smart mosquito liquid heater according to claim 1, wherein: The shell is provided with a display opening in the display area, the display module is fixedly installed on the module mounting portion in the display area, the projection display screen cover is arranged on the display opening, and the display surface of the display module faces the projection display screen. The outer surface of the shell is curved, the projection display screen is curved, or the projection display screen cover is arranged on the display opening.

3. The smart mosquito liquid heater according to claim 2, wherein: The display opening occupies at least one sixth of the surface area of the shell. The shell comprises an upper shell and a lower shell, the central part of the lower shell is provided with a heating portion, the module mounting portion is arranged on the lower shell and back to the heating portion, the front side of the lower shell corresponding to the module mounting portion is provided with a lower display gap, and the upper shell is provided with an upper display gap corresponding to the lower display gap.

4. The smart mosquito liquid heater according to claim 2, wherein: The upper shell and the lower shell are fixed by clamping, the upper display gap and the lower display gap form the display opening, the top end of the module mounting portion and the inner top surface of the upper shell are in abutment, and the upper shell and the lower shell relative to the front side part of the module mounting portion constitute the display area, and the upper shell and the lower shell relative to the rear side part of the module mounting portion constitute the heating area. The lower shell is provided with a plurality of lower connecting columns along the outer side of the heating portion, the upper shell is provided with upper connecting columns corresponding to the lower connecting columns, and the upper connecting columns and the lower connecting columns are fixedly connected one by one.

5. The smart mosquito liquid heater according to claim 4, wherein: The module mounting portion comprises a backboard and two slide rails, one of the lower connecting columns is arranged at the upper left corner of the heating portion, the other connecting column opposite to the connecting column is arranged at the upper right corner of the heating portion, the backboard is fixedly connected between the two lower connecting columns, and the upper part of the backboard extends to the inner top surface of the upper shell along the upper connecting column, and two slide rails are arranged on the two lower connecting columns respectively, and the slide tracks of the two slide rails are opposite and parallel to the backboard. The display module comprises an electric control board and a digital display device, the digital display device is integrated on the front side of the electric control board, the left and right side edges of the electric control board are respectively inserted into the bottom of the lower shell along the slide rails, the back of the electric control board abuts or is close to the front of the backboard, and the display surface of the digital display device faces the projection display screen.

6. The smart mosquito liquid heater according to claim 5, wherein: The display module further comprises a light emitting device, the light emitting device is integrated on the bottom end of the electric control board, the bottom surface of the lower shell is provided with a limiting seat corresponding to the light emitting device, the limiting seat is provided with a through hole leading to the outside of the shell, the light emitting device is limitingly installed on the limiting seat, and the light source part of the light emitting device is limited in the through hole.

7. The smart mosquito liquid heater according to claim 6, wherein: ​ 8. The smart mosquito liquid heater according to claim 4, wherein: The shell further comprises a power connector; the upper shell and the lower shell are respectively provided with an upper rotary mounting position and a lower rotary mounting position corresponding to a mounting portion of the power connector; the upper rotary mounting position and the lower rotary mounting position jointly form a rotary mounting position, and the mounting portion of the power connector is rotatably mounted in the rotary mounting position; The lower rotary mounting position is provided with a heat insulation baffle for separating the heating portion and the mounting portion of the power connector.

9. The smart mosquito liquid heater according to claim 4, wherein: The bottom surface of the lower shell is provided with at least one heat dissipation window corresponding to the heating portion, which is in communication with the heating portion and the outside of the shell.

10. The smart mosquito liquid heater according to claim 6, wherein: The shell further comprises a control button; an operation portion of the control button is movably arranged through the lower shell, and the operation portion of the control button is located below the lower display gap; a contact portion of the control button is close to a key trigger position of the electric control board.

11. A control circuit for a smart display mosquito killer liquid heater, characterized in that: The application is applied to the mosquito-killing liquid heater according to any one of claims 1 to 10; the mosquito-killing liquid heater comprises a key circuit, a Nixie tube scanning circuit, a heating circuit, a light circuit and a microcontroller; the key circuit, the Nixie tube scanning circuit, the heating circuit and the light circuit are electrically connected with the microcontroller respectively; When the key circuit inputs a light signal to the microcontroller, the microcontroller controls the light circuit to drive light emission; When the key circuit inputs different countdown gear heating signals to the microcontroller, the microcontroller controls the heating circuit to drive heating according to preset heating time corresponding to the countdown gear, and controls the Nixie tube scanning circuit to scan and display countdown of the countdown gear and the preset heating time.

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