Touch display module of heating table

Abstract

The utility model discloses a touch display module of a heating table. The touch display module comprises a shell and a printed circuit board (PCB) arranged in the shell. Wherein the shell comprises an upper shell and a lower shell, a surface film is arranged on the upper side of the upper shell, clamping grooves are symmetrically formed in the two outer sides of the upper shell, clamping protrusions are symmetrically arranged on the two outer sides of the lower shell, and the clamping grooves correspond to the clamping protrusions in position. A positioning piece is arranged on one side of the PCB, a positioning hole is formed in the upper shell, and the positioning piece penetrates through the positioning hole, so that the PCB and the upper shell are relatively fixed; a positioning bolt is arranged on the inner side of the lower shell; and the PCB and the positioning bolt are mutually limited. According to the utility model, through the cooperation of the clamping grooves and the clamping protrusions and the accurate butt joint of the positioning pieces on the PCB and the positioning holes of the upper shell, the simple and stable assembly of the internal elements of the module is realized. The overall structure of the module is simplified, the assembling complexity and difficulty are greatly reduced, the production efficiency is improved, and the production cost is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of touch panels for heating tables, in particular to a touch display module for a heating table. Background Art

[0002] In the traditional design of heating tables, the control panel often uses mechanical buttons or knobs, which not only take up a lot of space, but are also prone to wear and tear and failure after long-term use, affecting the user experience. With the advancement of technology and the improvement of people's quality of life, touch screen technology has gradually penetrated into various household appliances, including heating tables.

[0003] However, in the design and development process of the heating table touch display module, how to achieve accurate positioning and stable installation of the internal components of the module, and how to ensure good sealing between the module and the external environment have become technical problems that need to be solved urgently. In the existing technical solutions, some modules have problems such as complex structure and difficult assembly, which not only increases production costs, but also affects the market competitiveness of products. Summary of the invention

[0004] The following is a summary of the subject matter described in detail herein. This summary is not intended to limit the scope of the claims.

[0005] The utility model provides a touch display module for a heating table, which can realize accurate positioning and stable installation of internal components of the module by optimizing the module structure.

[0006] The utility model provides a touch display module for a heating table, comprising a shell and a PCB board, wherein the PCB board is built into the shell; the shell comprises an upper shell and a lower shell, a mask is provided on the upper side of the upper shell, positioning grooves are symmetrically provided on both sides of the outer side of the upper shell, positioning protrusions are symmetrically provided on both sides of the outer side of the lower shell, and the positions of the positioning grooves correspond to the positions of the positioning protrusions; a positioning piece is provided on one side of the PCB board, and a positioning hole is provided on the upper shell, and the positioning piece is passed through the positioning hole to fix the PCB board relatively to the upper shell; a positioning pin is provided on the inner side of the lower shell, and the PCB board and the positioning pin limit each other.

[0007] In an embodiment of the present invention, symmetrical concave areas are provided on both sides of the exterior of the upper shell, and the concave areas are embedded with latching fasteners.

[0008] In an embodiment of the present invention, an elastic element is provided on the locking fastener.

[0009] In an embodiment of the utility model, a prismatic groove is provided at the outer end of the locking protrusion.

[0010] In an embodiment of the present utility model, symmetrical clamping grooves are provided on both outer sides of the lower shell, and the positions of the clamping grooves correspond to the positions of the clamping fasteners.

[0011] In an embodiment of the present utility model, positioning elements are provided on the PCB board, through holes are provided on the lower shell, and the positioning elements are relatively fixed to the through holes.

[0012] In an embodiment of the present utility model, a touch sensing circuit is arranged on the PCB board; a touch sensor and a sensing control circuit are arranged on the touch sensing circuit, and the touch sensor is connected to the sensing control circuit.

[0013] In an embodiment of the present utility model, a voltage stabilizing integrated circuit and a constant current driving integrated circuit are integrated on the sensing control circuit.

[0014] In an embodiment of the present utility model, the lower shell includes a built-in speaker assembly.

[0015] In an embodiment of the present utility model, a sealing structure is provided at the joint between the upper shell and the lower shell, and the sealing structure is used to prevent moisture or dust from entering the interior of the module.

[0016] The beneficial effects of the present utility model are as follows:

[0017] 1. By using the cooperation of the clamping groove and the clamping protrusion, and the precise docking of the positioning parts on the PCB board and the positioning holes on the upper shell, the display module of the present utility model realizes the simple and stable assembly of the internal components of the module. It not only simplifies the overall structure of the module, but also greatly reduces the complexity and difficulty of assembly, thereby improving production efficiency and reducing production costs.

[0018] 2. The PCB board is tightly fitted with the positioning holes of the upper shell through the positioning parts, and at the same time, the positioning pins on the inner side of the lower shell and the PCB board limit each other. This double positioning mechanism ensures the precise position of the PCB board in the shell body, effectively preventing loosening or displacement caused by vibration or external force, and improving the overall stability and durability of the module. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is an exploded view of the overall structure of the touch display module of the heating table provided by the present utility model;

[0020] Figure 2 is a schematic diagram of the overall structure of the touch display module of the heating table provided by the present utility model;

[0021] Figure 3 is a schematic diagram of a partial structure of the touch display module provided by the present utility model;

[0022] Figure 4It is a schematic diagram of a touch sensing circuit structure provided by the present utility model;

[0023] Figure 5 It is a schematic diagram of a voltage stabilizing integrated circuit structure provided by the present utility model;

[0024] Reference numerals: housing 110; PCB board 120; upper shell 210; lower shell 220; face mask 230; clamping groove 211; clamping protrusion 221; positioning member 121; positioning hole 212; positioning pin 222; clamping fastener 213; clamping groove 223; first positioning element 310; second positioning element 320; first through hole 330; second through hole 340; LED lamp 122; speaker assembly 224. Specific embodiments

[0025] In order to make the objectives, technical solutions and advantages of the present utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present utility model and are not used to limit the present utility model.

[0026] It should be noted that although the logical order is shown in the flowchart, in some cases, the steps shown or described may be executed in a different order than that in the flowchart. Terms such as "first" and "second" in the description, claims and the above-mentioned drawings are used to distinguish similar objects and do not necessarily need to describe a specific order or sequence. It should be noted that the structures, ratios, sizes, etc. shown in the drawings of this specification are only used to cooperate with the content disclosed in the specification for those skilled in this technology to understand and read, and are not used to limit the limited conditions under which the present invention can be implemented. Therefore, they do not have a technical essence. Any modification of the structure, change of the proportional relationship or adjustment of the size, without affecting the effects that the present invention can produce and the objectives that can be achieved, should still fall within the scope covered by the technical content disclosed in the present invention. At the same time, terms such as "upper", "lower", "left", "right", "middle" and "one" cited in this specification are only for the convenience of clear narration and are not used to limit the scope within which the present invention can be implemented. The change or adjustment of their relative relationships, without substantial change in the technical content, should also be regarded as the scope within which the present invention can be implemented.

[0027] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the technical field to which the present utility model belongs. The terms used herein are only for the purpose of describing the present utility model and are not intended to limit the present utility model.

[0028] In the design of traditional heating tables, the control panel often uses mechanical buttons or knobs. These designs not only take up a large amount of space but also are prone to wear and failure after long-term use, affecting the user experience. With the progress of technology and the improvement of people's requirements for the quality of life, touch screen technology has gradually penetrated into various household appliances, including heating tables. However, in the design and development process of the touch display module of the heating table, how to achieve the precise positioning and stable installation of the internal components of the module, and how to ensure the good sealing performance of the module with the external environment have become technical problems that need to be solved urgently. In the existing technical solutions, some modules have problems such as complex structures and difficult assembly, which not only increase the production cost but also affect the market competitiveness of the products.

[0029] In view of this, the utility model provides a touch display module for a heating table, which includes a housing and a PCB board built in the housing. Among them, the housing includes an upper shell and a lower shell. On both sides of the outside of the upper shell, clamping grooves are symmetrically arranged, and on both sides of the outside of the lower shell, clamping protrusions are symmetrically arranged, and the positions of the clamping grooves correspond to the positions of the clamping protrusions. By using the cooperation of the clamping grooves and the clamping protrusions, and the precise docking of the positioning parts on the PCB board and the positioning holes on the upper shell, the simple and stable assembly of the internal components of the module is realized. It not only simplifies the overall structure of the module but also greatly reduces the complexity and difficulty of assembly, thereby improving the production efficiency and reducing the production cost. In addition, a positioning part is arranged on one side of the PCB board, and a positioning hole is arranged on the upper shell, and the positioning part passes through the positioning hole to relatively fix the PCB board and the upper shell; a positioning pin is arranged on the inner side of the lower shell, and the PCB board and the positioning pin limit each other. This double positioning mechanism ensures the precise position of the PCB board in the housing, effectively preventing loosening or displacement caused by vibration or external force, and improving the overall stability and durability of the module.

[0030] The following further clarifies the utility model in conjunction with the attached drawings and specific embodiments.

[0031] See Figure 1 and Figure 2, the display module includes a housing 110 and a PCB board 120. Among them, the PCB board 120 is built into the housing 110. Specifically, the housing 110 includes an upper shell 210 and a lower shell 220. A face mask 230 is provided on the upper side of the upper shell 210. On both outer sides of the upper shell 210, clamping grooves 211 are symmetrically provided. On both outer sides of the lower shell 220, clamping protrusions 221 are symmetrically provided. The positions of the clamping grooves 211 correspond to the positions of the clamping protrusions 221, so that the clamping grooves 211 and the clamping protrusions 221 can be seamlessly snapped together to achieve precise docking and stable connection between the upper and lower shells 220. In addition, a positioning member 121 is provided on one side of the PCB board 120, and a positioning hole 212 is provided on the upper shell 210. The positioning member 121 passes through the positioning hole 212 to relatively fix the PCB board 120 and the upper shell 210. In addition, a plurality of positioning pins 222 are provided on the inner side of the lower shell 220. These pins and the PCB board 120 are mutually limited, further enhancing the stability of the internal structure of the module, preventing the PCB board 120 from shifting or loosening during use, and ensuring the overall performance and lifespan of the module.

[0032] In a feasible embodiment, as Figure 1 shown, on both outer sides of the upper shell 210, concave areas are symmetrically provided, in which clamping fasteners 213 are arranged. These fasteners are located on one side of the clamping grooves 211, adding convenience and stability to the installation process. Further, elastic elements can be integrated on the clamping fasteners 213. At the same time, on both sides of the lower shell 220, concave clamping grooves 223 are symmetrically provided, and their positions precisely correspond to the clamping fasteners 213 on the upper shell 210. The clamping grooves 223 and the clamping fasteners 213 together form a precise installation groove. This design allows the entire touch display module of the heating table to smoothly slide onto the pre-drilled aluminum material. When installing the display module, through simple and efficient operations, the clamping fasteners 213 are tightly snapped with the holes on the aluminum material, and the elastic force of the elastic elements is used to achieve a stable locking effect. This process not only simplifies the installation steps but also greatly improves the fixing stability of the module on the aluminum material, ensuring that the touch display module of the heating table can maintain the best performance and durability during use.

[0033] In a feasible embodiment, a rhombic groove body is provided at the outer end of the clamping protrusion 221, so that the clamping protrusion 221 and the clamping groove 211 at the corresponding position on the upper shell 210 can be seamlessly snapped together, ensuring precise docking and firm connection between the upper and lower shells. This design not only improves the overall structural strength of the module but also brings a more reliable user experience.

[0034] In a feasible embodiment, as Figure 1As shown, a speaker component 224 is provided inside the lower shell 220, which is connected to the microcontroller chip, greatly enhancing the user's interaction experience with the device. When the user operates on the touch interface of the facial mask 230, the speaker component 224 can immediately emit functional sound notifications to feedback the operation results or status changes, enabling the user to accurately understand the device's response without constantly staring at the screen. Similarly, in the voice interaction mode, the speaker component 224 also makes functional sound notifications according to instructions or system prompts to ensure that the user can smoothly communicate and control the device through voice.

[0035] In a feasible embodiment, positioning elements are provided on the PCB board 120, and the positioning elements are relatively fixed with the through holes of the lower shell 220, ensuring the stability and accuracy of the display module structure. Specifically, as Figure 3 shown, the positioning elements include a first positioning element 310 and a second positioning element 320. The lower shell 220 is provided with a first through hole 330 and a second through hole 340. The position of the first positioning element 310 corresponds to the position of the first through hole 330, and the position of the second positioning element 320 corresponds to the position of the second through hole 340. This one-to-one matching and fixing method not only strengthens the precise positioning of the positioning elements in three-dimensional space but also promotes the tight connection and relative fixation between the PCB board 120 and the lower shell 220.

[0036] In a feasible embodiment, a touch sensing circuit is arranged on the PCB board 120. The touch sensing circuit integrates a highly sensitive touch sensor and an induction control circuit, and the two are interconnected to achieve functional cooperation. Specifically, the touch sensor is responsible for capturing signals generated by the user through non-direct contact methods (such as finger sliding in the air), and the induction control circuit quickly responds to these signals and converts them into corresponding operation instructions. This design not only improves the user's operation experience and realizes a more smooth and natural interaction method but also ensures that the heating table can operate stably and reliably in various environments.

[0037] In a feasible embodiment, as Figure 3 shown, an LED lamp 122 is provided on the touch sensing circuit to provide a convenient interaction experience for the user through non-direct contact (i.e., air operation). However, traditional chip direct drive LED or single constant voltage drive integrated circuit solutions are difficult to effectively adapt to this interaction mode, and thus may cause unnecessary interference to the LED lamp when receiving signals due to improper signal processing, resulting in a flashing phenomenon and affecting the stability and operation efficiency of the entire display module. For this reason, a constant current drive integrated circuit is integrated in the induction control circuit. By using the constant current drive integrated circuit to drive the LED lamp 122, the LED lamp flashing phenomenon and its resulting interference can be effectively reduced, thereby greatly improving the overall stability and anti-interference ability of the display module. See Figure 4, this figure is a schematic diagram of a touch sensing circuit structure provided by the present utility model. The circuit selects a microcontroller chip with the model number IC-SC95F8573, and the chip integrates an LED lamp 122, achieving a high degree of functional integration. The chip is connected to a constant current drive integrated circuit, thereby introducing a constant current drive technology to drive the LED lamp 122. By adopting a constant current drive integrated circuit, it is ensured that when the LED lamp 122 receives a signal generated by the user's air operation, it can stably emit light with a constant and appropriate current. This improvement not only significantly extends the service life of the LED lamp 122, but also greatly improves the smoothness and accuracy of touch sensing.

[0038] In a feasible embodiment, the microcontroller chip may be vulnerable to voltage fluctuations that affect touch, thereby affecting its touch performance. In view of this, the induction control circuit not only integrates a constant current drive integrated circuit to optimize the LED drive effect, but also introduces a voltage stabilizing integrated circuit protection to protect the microcontroller chip from voltage instability. As Figure 5 shown in the structure diagram of the voltage stabilizing integrated circuit, a linear voltage regulator chip with the model number HT7544 is adopted, which is embedded in the voltage stabilizing integrated circuit and placed at the front end of the chip power supply link. With its excellent voltage stabilizing performance and reliability, HT7544 can ensure that regardless of how the external power supply fluctuates, the voltage supplied to the microcontroller chip can be stably maintained within a preset ideal range. This measure fundamentally protects the chip from voltage instability, effectively preventing the problem of decreased touch performance caused by voltage fluctuations, thereby significantly improving the stability and reliability of the entire system.

[0039] It should be noted that the model numbers of the microcontroller chip and the linear voltage regulator chip mentioned in the above embodiments are only for illustrative purposes, aiming to illustrate the feasibility of the design concept and technical solution. In actual applications, the specific chip model adopted can be flexibly selected and adjusted according to various factors such as project requirements, and no restrictive conditions are set here.

[0040] In a feasible embodiment, a sealing structure is provided at the joint between the upper shell 210 and the lower shell 220, aiming to build an effective barrier to prevent external impurities such as moisture or dust from invading the inside of the module. The sealing structure is usually made of materials with high elasticity and aging resistance, such as double-sided adhesive tapes, silicone rubber gaskets or rubber pads, etc. These materials can closely fit the joint surface of the upper shell 210 and the lower shell 220. When the module is assembled, the sealing structure is compressed between the upper shell 210 and the lower shell 220. Through its excellent resilience and sealing performance, it ensures that there are no gaps at the joint, thereby effectively isolating the potential threats of the external environment to the internal electronic components of the module. Such a design not only improves the durability and reliability of the module, but also extends its service life, providing a strong guarantee for the stable operation of the device.

[0041] The above are only the preferred embodiments of the present utility model. It should be noted that for those of ordinary skill in the art, several improvements can be made without departing from the principle of the present utility model, and these improvements should also be regarded as the protection scope of the present utility model.

Claims

1. A heating table touch display module, characterized in that: It includes a shell and a PCB board, and the PCB board is built into the shell; the shell includes an upper shell and a lower shell, the upper side of the upper shell is provided with a mask, the outer sides of the upper shell are symmetrically provided with locking grooves, and the outer sides of the lower shell are symmetrically provided with locking protrusions, and the positions of the locking grooves correspond to the positions of the locking protrusions; a positioning piece is provided on one side of the PCB board, and the upper shell is provided with a positioning hole, and the positioning piece is passed through the positioning hole to fix the PCB board relatively to the upper shell; a positioning pin is provided on the inner side of the lower shell, and the PCB board and the positioning pin limit each other.

2. A heating table touch display module according to claim 1, characterized in that: Symmetrical concave areas are provided on both sides of the exterior of the upper shell, and snap fasteners are embedded in the concave areas.

3. The heating table touch display module according to claim 2, characterized in that: The locking fastener is provided with an elastic element.

4. The heating table touch display module according to claim 1, characterized in that: The outer end of the locking protrusion is provided with a prismatic groove body.

5. The heating table touch display module according to claim 2, characterized in that: Symmetrical clamping grooves are provided on both sides of the exterior of the lower shell, and the positions of the clamping grooves correspond to the positions of the locking fasteners.

6. A heating table touch display module according to claim 1, characterized in that: The PCB board is provided with a positioning element, the lower shell is provided with a through hole, and the positioning element is relatively fixed to the through hole.

7. A heating table touch display module according to claim 1, characterized in that: A touch sensing circuit is arranged on the PCB board; a touch sensor and a sensing control circuit are arranged on the touch sensing circuit, and the touch sensor is connected to the sensing control circuit.

8. A heating table touch display module according to claim 7, characterized in that: The induction control circuit is integrated with a voltage stabilizing integrated circuit and a constant current driving integrated circuit.

9. A heating table touch display module according to claim 1, characterized in that: The lower housing includes a built-in speaker assembly.

10. The heating table touch display module according to claim 1, characterized in that: A sealing structure is provided at the joint between the upper shell and the lower shell, and the sealing structure is used to prevent moisture or dust from entering the interior of the module.

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