Steamed product display cabinet controller

Abstract

The utility model discloses a steamed product display cabinet controller, which belongs to the technical field of controllers, and comprises a first shell and a second shell which are spliced to form an outer shell, two through holes are formed in the side wall, far away from the second shell, of the first shell, the two through holes are arranged up and down, a mounting cavity is formed in the spliced first shell and second shell, and the mounting cavity is communicated with the first shell and the second shell. A circuit board is arranged in the mounting cavity; the working state of the heating disc can be accurately controlled according to the water level of the water tank in the steaming product display cabinet, compared with the prior art, the water level condition of the water tank in the steaming product display cabinet can be fully considered, the condition of dry burning of the heating disc is avoided, the service life of the steaming product display cabinet is prolonged, and the practicability is high. Meanwhile, the heating quantity of the heating disc can be accurately controlled according to the state that a user presses the waterproof and dustproof key, the heating efficiency is improved, the working state of the heating disc can be accurately judged according to the indicator lamp, the control precision is improved, and the quality of steamed products is guaranteed.

Description

Technical Field

[0001] This utility model belongs to the field of controller technology, specifically relating to a controller for a steamed food display cabinet. Background Technology

[0002] Steamed food display cases are professional equipment used to display and sell steamed foods, and are widely used in convenience stores, restaurants and shopping malls.

[0003] The controller is one of the key components of a steamed food display cabinet. Its main function is to precisely control various operating parameters of the steamed food display cabinet to ensure the quality of the steamed food.

[0004] Current controllers for steamed food display cabinets generally control various operating parameters based on temperature monitoring. This method does not take into account the water level in the water tank inside the steamed food display cabinet. If the water level in the water tank is lower than the preset minimum water level but the user does not notice and does not replenish it in time, it can easily damage the heating plate of the steamed food display cabinet and shorten its service life.

[0005] Therefore, a controller for a steamed food display cabinet is designed to solve the above problems. Utility Model Content

[0006] To address the problems mentioned in the background section, this invention provides a controller for a steamed food display cabinet. This controller fully considers the water level in the water tank inside the cabinet, preventing the heating plate from burning dry and extending the lifespan of the steamed food display cabinet.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a controller for a steamed food display cabinet, comprising: a first shell and a second shell joined together to form an outer shell; the first shell has two openings on its side wall away from the second shell, the two openings being arranged vertically; an installation cavity is formed inside the joined first and second shells; a circuit board is disposed inside the installation cavity; the circuit board, near the side wall of the first shell, is sequentially connected from top to bottom to a plurality of relays arranged in parallel, a plurality of indicator lights arranged in parallel, a plurality of waterproof and dustproof buttons arranged in parallel, a water level sensor, and a transformer; the indicator lights and waterproof and dustproof buttons extend through the two openings to the outside of the first shell, and the number of indicator lights is greater than that of the relays. The device is equipped with one more waterproof and dustproof button, the same number as the relay. The transformer is electrically connected to the relay, indicator light, waterproof and dustproof button, and water level sensor. The circuit board is connected to the CPU controller away from the side wall of the first housing. The transformer is electrically connected to the CPU controller. The CPU controller is electrically connected to the relay, indicator light, waterproof and dustproof button, and water level sensor. The second housing is provided with through holes at the input and output ends of the relay, water level sensor, and transformer respectively, away from the side wall of the first housing. The input and output ends of the relay, water level sensor, and transformer extend out of the second housing through the corresponding through holes. Two mounting blocks with threaded holes are symmetrically fixed to the outer side wall of the second housing.

[0008] Furthermore, threaded connecting blocks are fixedly connected to the four corners of the first housing near the side wall of the second housing and the four corners of the second housing near the side wall of the first housing, and connecting screws are threaded between the two threaded connecting blocks at corresponding positions.

[0009] Furthermore, two positioning blocks are symmetrically fixed to the side wall of the circuit board. Positioning grooves are respectively opened on the side walls of the first and second housings corresponding to the positions of the positioning blocks. The two positioning grooves at corresponding positions on the first and second housings are spliced ​​together to form a rectangular opening. The positioning blocks pass through the rectangular opening and are fixed in position by the squeezing force of the splicing of the first and second housings.

[0010] Furthermore, sealing gaskets are fixed to the inner walls of the through-hole, positioning groove, and through hole respectively.

[0011] Furthermore, the four corners of the first and second housings, as well as the outer corners of the threaded mounting block and the threaded connecting block, are respectively made of arc shape.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] 1. This utility model can accurately control the working status of the heating plate according to the water level in the water tank inside the steaming display cabinet. Compared with the prior art, it can fully consider the water level in the water tank inside the steaming display cabinet, avoid the heating plate from burning dry, and extend the service life of the steaming display cabinet. At the same time, it can accurately control the heating quantity of the heating plate according to the user's pressing of the waterproof and dustproof button, improve heating efficiency, and accurately judge the working status of the heating plate according to the indicator light, so as to improve the control precision and ensure the quality of steamed food.

[0014] 2. The first and second housings of this utility model are detachable, and the circuit board is also detachable from the first and second housings, which facilitates maintenance or repair of the internal structure.

[0015] 3. The present invention is equipped with a sealing gasket, which can improve the sealing performance of the controller, prevent steam from entering the interior of the steamed food display cabinet and affecting its structure, and extend its service life. Attached Figure Description

[0016] Figure 1 This is a perspective view of the present utility model;

[0017] Figure 2 This is an exploded view of the present invention;

[0018] Figure 3 This is another perspective view of the circuit board of this utility model;

[0019] In the diagram: 1. First housing; 2. Second housing; 3. Mounting block with threaded hole; 4. Transformer; 5. Circuit board; 6. Relay; 7. Through hole; 8. Indicator light; 9. Waterproof and dustproof button; 10. Water level sensor; 11. Port; 12. CPU controller;

[0020] 101. Connecting block with threaded hole; 102. Connecting screw;

[0021] 201. Positioning groove; 202. Positioning block;

[0022] 301. Sealing gasket. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] Example 1

[0025] This utility model provides the following technical solution: a controller for a steamed food display cabinet, comprising: a first shell 1 and a second shell 2 joined together to form an outer shell. The first shell 1 has two openings 11 on its side wall away from the second shell 2, arranged vertically. An installation cavity is formed inside the joined first shell 1 and second shell 2. A circuit board 5 is installed inside the installation cavity. A plurality of parallel relays 6, a plurality of parallel indicator lights 8, a plurality of parallel waterproof and dustproof buttons 9, a water level sensor 10, and a transformer 4 are connected sequentially from top to bottom on the circuit board 5 near the side wall of the first shell 1. The number of parallel relays 6 is the same as the number of heating plates inside the steamed food display cabinet, and they need to be electrically connected one-to-one. The plurality of indicator lights 8 and waterproof and dustproof buttons 9 extend through the two openings 11 to the outside of the first shell 1. The number of indicator lights 8 is one more than the number of relays 6; the extra indicator light 8 is a power indicator. The lamps are all heating plate indicator lights, and each one corresponds to the working status of the heating plate. The number of waterproof and dustproof buttons 9 is the same as that of relays 6, so as to control the operation of several heating plates. Transformer 4 is electrically connected to relays 6, indicator lights 8, waterproof and dustproof buttons 9 and water level sensor 10. Circuit board 5 is connected to CPU controller 12 on the side wall away from the first housing 1. Transformer 4 is electrically connected to CPU controller 12. CPU controller 12 is electrically connected to relays 6, indicator lights 8, waterproof and dustproof buttons 9 and water level sensor 10. The second housing 2 is provided with through holes 7 on the side wall away from the first housing 1, corresponding to the input and output ends of relays 6, water level sensor 10 and transformer 4. The input and output ends of relays 6, water level sensor 10 and transformer 4 extend out of the second housing 2 through the corresponding through holes 7. Two mounting blocks 3 with threaded holes are symmetrically fixed to the outer side wall of the second housing 2.

[0026] In this embodiment, please refer to the appendix. Figure 1-3 When installing the steamed food display cabinet controller, install the two threaded mounting blocks 3 on the matching positions of the steamed food display cabinet with screws, connect the power supply of the steamed food display cabinet to the wiring terminals of the transformer 4 (i.e., the input and output terminals), connect the water level needle of the steamed food display cabinet to the wiring terminals of the water level sensor 10 (i.e., the input and output terminals), and connect the heating plates of the steamed food display cabinet to the wiring terminals of the relays 6 (i.e., the input and output terminals) one by one to complete the installation.

[0027] When the steamed food display cabinet controller is in operation, the water level in the water tank inside the steamed food display cabinet is monitored by a water level needle and transmitted to the water level sensor 10. When the water level in the water tank inside the steamed food display cabinet is lower than the preset minimum water level, the water level needle is not conductive, and the water level sensor 10 transmits the water level information to the CPU controller 12. The CPU controller 12 controls several relays 6 to disconnect, and several heating plates stop working. When the water level in the water tank inside the steamed food display cabinet is higher than the preset minimum water level, the water level needle is conductive, and the water level sensor 10 transmits the water level information to the CPU controller 12. The CPU controller 12 controls the power indicator light 8 to light up. When the user presses the waterproof and dustproof button 9, the CPU controller 12 controls the corresponding heating plate to work, and the corresponding heating plate indicator light 8 lights up; otherwise, it turns off.

[0028] The different heating plates can be controlled by pressing different waterproof and dustproof buttons 9. Any heating plate can work at once, or several can work at the same time.

[0029] Example 2

[0030] The difference between this embodiment and Embodiment 1 is that:

[0031] Specifically, threaded connecting blocks 101 are fixedly connected to the four corners of the side wall of the first housing 1 near the second housing 2 and the four corners of the side wall of the second housing 2 near the first housing 1, and connecting screws 102 are threadedly connected between the two threaded connecting blocks 101 at corresponding positions.

[0032] In this embodiment, please refer to the appendix. Figure 2 By removing the four connecting screws 102, the first housing 1 and the second housing 2 can be separated, making it convenient to maintain or repair the internal structure.

[0033] Example 3

[0034] The difference between this embodiment and embodiment two is that:

[0035] Specifically, two positioning blocks 202 are symmetrically fixed to the side wall of the circuit board 5. Positioning grooves 201 are respectively opened on the side wall of the first housing 1 and the second housing 2 at the positions of the positioning blocks 202. The two positioning grooves 201 at the corresponding positions on the first housing 1 and the second housing 2 are spliced ​​together to form a rectangular opening. The positioning blocks 202 pass through the rectangular opening and are fixed in position by the squeezing force of the splicing of the first housing 1 and the second housing 2.

[0036] In this embodiment, please refer to the appendix. Figure 2 After removing the four connecting screws 102 and separating the first housing 1 and the second housing 2, the two positioning blocks 202 can be removed, that is, the circuit board 5 can be removed, which facilitates the maintenance or repair of the structure.

[0037] Example 4

[0038] The difference between this embodiment and Embodiment 3 is that:

[0039] Specifically, sealing gaskets 301 are fixed to the inner walls of the through opening 11, the positioning groove 201, and the through hole 7, respectively.

[0040] In this embodiment, please refer to the appendix. Figure 2 The sealing gasket 301 can improve the sealing performance and prevent the steam in the steam display cabinet from affecting the internal structure.

[0041] Specifically, the four corners of the first housing 1 and the second housing 2, as well as the outer corners of the threaded mounting block 3 and the threaded connecting block 101, are respectively made of arc shape.

[0042] In this embodiment, please refer to the appendix. Figure 1 and 2 To avoid contact that could cause injury and improve safety during use.

[0043] The working principle of this utility model:

[0044] When installing the steamed food display cabinet controller, install the two threaded mounting blocks 3 into the matching positions of the steamed food display cabinet using screws. Connect the power supply of the steamed food display cabinet to the terminals of the transformer 4, i.e., the input and output terminals. Connect the water level needle of the steamed food display cabinet to the terminals of the water level sensor 10, i.e., the input and output terminals. Connect the heating plates of the steamed food display cabinet to the terminals of the relays 6, i.e., the input and output terminals, one by one. The installation is then complete.

[0045] When the steamed food display cabinet controller is in operation, the water level in the water tank inside the steamed food display cabinet is monitored by a water level needle and transmitted to the water level sensor 10. When the water level in the water tank inside the steamed food display cabinet is lower than the preset minimum water level, the water level needle is not conductive, and the water level sensor 10 transmits the water level information to the CPU controller 12. The CPU controller 12 controls several relays 6 to disconnect, and several heating plates stop working. When the water level in the water tank inside the steamed food display cabinet is higher than the preset minimum water level, the water level needle is conductive, and the water level sensor 10 transmits the water level information to the CPU controller 12. The CPU controller 12 controls the power indicator light 8 to light up. When the user presses the waterproof and dustproof button 9, the CPU controller 12 controls the corresponding heating plate to work, and the corresponding heating plate indicator light 8 lights up; otherwise, it turns off.

[0046] For example: If the user presses the first waterproof and dustproof button 9, the CPU controller 12 controls the compatible heating plate to work, and the indicator light 8 of the compatible heating plate lights up. If the user presses the first and second waterproof and dustproof buttons 9 at the same time, the CPU controller 12 controls the compatible heating plate to work at the same time, and the indicator light 8 of the compatible heating plate lights up at the same time, and so on.

[0047] If maintenance or repair of the internal structure is required, remove the four connecting screws 102, take off the first housing 1, remove the two positioning blocks 202, and then remove the circuit board 5. At this time, the structure can be maintained or repaired, which is convenient and quick.

[0048] Transformer 4, circuit board 5, relay 6, indicator light 8, waterproof and dustproof button 9, water level sensor 10, and CPU controller 12 are all conventional instruments. Their working principles, dimensions, and models are irrelevant to the function of this application, so they will not be described in detail. The control method of this utility model is controlled by the CPU controller 12. The control circuit of the CPU controller 12 can be implemented by those skilled in the art through simple programming. The power supply is also common knowledge in the art. Furthermore, this utility model is mainly used to protect mechanical devices, so the control method and circuit connection will not be explained in detail.

[0049] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art 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 appended claims and their equivalents.

Claims

1. A controller for a steamed food display cabinet, characterized in that, include: A first housing (1) and a second housing (2) are assembled to form an outer shell. The first housing (1) has two openings (11) on its side wall away from the second housing (2). The two openings (11) are arranged vertically. The first housing (1) and the second housing (2) are assembled to form an installation cavity. A circuit board (5) is installed inside the installation cavity. The circuit board (5) is connected from top to bottom to several relays (6), several indicator lights (8), several waterproof and dustproof buttons (9), a water level sensor (10), and a transformer (4) in parallel. Several indicator lights (8) and waterproof and dustproof buttons (9) extend out of the first housing (1) through the two openings (11). The number of indicator lights (8) is one more than the number of relays (6), the number of waterproof and dustproof buttons (9) is the same as the number of relays (6), and the number of transformers (4) is the same as the number of water level sensors (10). The relay (6), indicator light (8), waterproof and dustproof button (9) and water level sensor (10) are electrically connected. The circuit board (5) is connected to the side wall away from the first housing (1) by a CPU controller (12). The transformer (4) is electrically connected to the CPU controller (12). The CPU controller (12) is electrically connected to the relay (6), indicator light (8), waterproof and dustproof button (9) and water level sensor (10). The second housing (2) is provided with through holes (7) on the side wall away from the first housing (1) corresponding to the input and output terminals of the relay (6), water level sensor (10) and transformer (4). The input and output terminals of the relay (6), water level sensor (10) and transformer (4) extend out of the second housing (2) through the corresponding through holes (7). Two mounting blocks (3) with threaded holes are symmetrically fixed to the outer side wall of the second housing (2).

2. The controller for a steamed food display cabinet according to claim 1, characterized in that: The first housing (1) is fixed with threaded hole connecting blocks (101) at the four corners of the side wall near the second housing (2) and the second housing (2) is fixed with threaded hole connecting blocks (101) at the four corners of the side wall near the first housing (1). The two threaded hole connecting blocks (101) at corresponding positions are threadedly connected with connecting screws (102).

3. The controller for a steamed food display cabinet according to claim 1, characterized in that: Two positioning blocks (202) are symmetrically fixed to the side wall of the circuit board (5). Positioning grooves (201) are respectively opened on the side wall of the first housing (1) and the second housing (2) corresponding to the positions of the positioning blocks (202). The two positioning grooves (201) at corresponding positions on the first housing (1) and the second housing (2) are spliced ​​to form a rectangular opening. The positioning block (202) passes through the rectangular opening and is fixed in position by the squeezing force of the splicing of the first housing (1) and the second housing (2).

4. A controller for a steamed food display cabinet according to claim 3, characterized in that: Sealing gaskets (301) are fixed to the inner walls of the through opening (11), positioning groove (201) and through hole (7).

5. A controller for a steamed food display cabinet according to claim 2, characterized in that: The four corners of the first housing (1) and the second housing (2), as well as the outer corners of the threaded mounting block (3) and the threaded connecting block (101), are respectively made into arc shapes.

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