Voltage doubling rectifying device with integrated heat dissipation structure and high-power electric flame stove

Abstract

The utility model discloses a voltage-multiplying rectifying device with an integrated heat dissipation structure, which is used for a high-power electric flame stove and comprises a plurality of PCBs (printed circuit boards) and bolt studs, the PCBs are sequentially arranged in a layered manner from top to bottom, and the bolt studs are arranged among the PCBs. Gaps for heat dissipation are reserved between the layers of PCBs, and meanwhile, the blank of each PCB is hollowed out. According to the utility model, the plurality of PCBs are sequentially arranged in a layered manner from top to bottom, so that the voltage doubling rectifier module is integrated, the occupied space is saved, and the centralized heat dissipation is simple; in addition, gaps for heat dissipation are reserved between the PCBs, and the blank of each PCB is hollowed out, so that the LED lamp is good in ventilation and ideal in heat dissipation effect. Compared with the prior art, a radiator does not need to be installed, and the heat dissipation effect is better than that of the prior art.

Description

Technical Field

[0001] The utility model relates to an electric flame stove, in particular to a voltage doubling rectification device for a high-power electric flame stove. Background Art

[0002] Commercial electric flame stoves are widely used in commercial kitchens. High-power commercial electric flame stoves are 20KW, and usually use more than 120 plasma torches as heat energy supply sources. Each plasma torch requires high voltage when working. A voltage doubling rectification circuit that can supply high voltage to so many plasma torches at the same time will generate more heat. At the same time, the space of the stove body is limited. Therefore, the problem of heat dissipation of the voltage doubling rectification circuit is a difficult problem that needs to be solved urgently by R & D personnel in this field. Summary of the Utility Model

[0003] The utility model aims to provide a technical solution to solve the above problems in order to overcome the above deficiencies.

[0004] A voltage doubling rectification device with an integrated heat dissipation structure for a commercial electric flame stove, including a plurality of PCB boards arranged in layers from top to bottom in sequence and bolt columns between each layer of PCB boards; there is also a heat dissipation gap left between each layer of the PCB boards, and at the same time, the blank areas of a single PCB board are hollowed out; each layer of PCB boards is not electrically connected to each other, and a single PCB board is independently electrically connected to a transformer in the stove body; a single PCB board is provided with N groups of voltage doubling rectification units, and a single group of voltage doubling rectification units includes a plurality of diodes and a plurality of capacitors, where N is an integer greater than 16;

[0005] Preferably, the voltage doubling rectification unit is covered with sealant, and the thickness of the sealant is less than 1mm;

[0006] Preferably, the voltage doubling rectification unit is provided with an independent anode connection end, and the anode connection end is electrically connected to the corresponding plasma torch of the burner head;

[0007] Preferably, the voltage output by the voltage doubling rectification unit is twice the voltage doubling rectification voltage;

[0008] Preferably, the bolt column is provided with a male end and a female end, and the male end of the lower bolt column passes through the screw hole on the PCB board to connect the female end of the upper bolt column.

[0009] A high-power electric flame stove is also proposed, including the voltage doubling rectification device with the integrated heat dissipation structure as described in any one of the above.

[0010] The advantages of the present utility model are as follows: By arranging multiple PCB boards in layers from top to bottom in sequence, the voltage multiplier rectification module is integrated, saving occupied space and having simple centralized heat dissipation; meanwhile, there are heat dissipation gaps left between the PCB boards of each layer, and the blank areas of a single PCB board are hollowed out, enabling better ventilation of the present utility model and achieving an ideal heat dissipation effect; compared with the prior art, the present utility model does not need to install a radiator and has a better heat dissipation effect than the prior art.

[0011] Additional aspects and advantages of the present utility model will be given in part in the following description, become apparent in part from the following description, or be learned through the practice of the present utility model. Brief Description of the Drawings

[0012] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0013] Figure 1 is a structural schematic diagram of the present utility model.

[0014] Figure 2 is a partial enlarged view of the present utility model.

[0015] Figure 3 is a structural schematic diagram of the bolt column.

[0016] In the figure: 1, PCB board; 2, voltage multiplier rectification unit; 21, diode; 22, capacitor; 3, anode connection end; 4, bolt column; 41, male end; 42, female end. Detailed Embodiments

[0017] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, rather than 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 efforts belong to the scope of protection of the present utility model.

[0018] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present utility model.

[0019] In addition, in the description of the present utility model, unless otherwise clearly specified and defined, the terms "installation", "connection", "connection", etc. should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can also be the communication inside two elements. It can be a wireless connection or a wired connection. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0020] In addition, the technical features involved in different embodiments of the present utility model described subsequently can be combined with each other as long as they do not conflict with each other.

[0021] Please refer to Figures 1 - 2 , in the embodiment of the present utility model, a voltage multiplier rectification device with an integrated heat dissipation structure is used for a commercial electric flame stove. It includes a plurality of PCB boards 1 arranged in layers from top to bottom in sequence and bolt columns 4 between each layer of PCB boards 1. Stacking the plurality of PCB boards 1 in sequence makes the voltage multiplier rectification device modular, reduces the occupied space in the stove body, and is convenient for heat dissipation at the same time. Using a single heat dissipation fan in the stove body can achieve a good heat dissipation purpose for the voltage multiplier rectification device.

[0022] There is also a heat dissipation gap left between each layer of PCB boards 1. At the same time, the blank areas of a single PCB board 1 are hollowed out, so that the present utility model has better ventilation, and the airflow can take away the heat generated by the electronic components in time.

[0023] Each layer of PCB boards 1 is not electrically connected to each other, and a single PCB board 1 is independently electrically connected to the transformer in the stove body. In this embodiment, the stove body is provided with a plurality of transformers independently corresponding to each layer of PCB boards 1, which reduces the load of the transformers and ensures the stability of high-voltage electricity.

[0024] In one embodiment, a single PCB board 1 is provided with N groups of voltage multiplier rectifier units 2. Each group of voltage multiplier rectifier units 2 includes a plurality of diodes 21 and a plurality of capacitors 22, where N is an integer greater than 16. The voltage multiplier rectifier units 2 are provided with independent anode connection terminals 3, and the anode connection terminals 3 are electrically connected to the plasma torches corresponding to the stove heads. In this embodiment, a single PCB board 1 is provided with 16 - 18 groups of voltage multiplier rectifier units 2. Each single voltage multiplier rectifier unit 2 individually provides a voltage multiplier voltage for the corresponding plasma torch through the anode connection terminal 3. This design ensures the normal operation of the commercial electric stove. If a single voltage multiplier rectifier unit 2 fails, the other voltage multiplier rectifier units 2 can still work normally, thus not affecting the normal cooking progress of the users in the commercial kitchen.

[0025] In another embodiment, the voltage multiplier rectifier units 2 are covered with encapsulation glue, and the thickness of the encapsulation glue is less than 1 mm. The encapsulation glue plays an insulating role for the electronic components. The electronic components, especially the diodes 21, will generate heat. If the encapsulation glue is too thick, it will affect the heat dissipation of the electronic components. Therefore, it needs to be controlled between 0.5 mm and 1 mm, which can not only play an insulating role but also enable the heat to be transferred to the outer surface of the encapsulation glue in time. In this embodiment, there is no need to add a metal radiator, avoiding the risk of arcing between the electronic components and saving costs.

[0026] In another embodiment, the voltage output by the voltage multiplier rectifier unit 2 is twice the voltage multiplier rectification voltage. The twice voltage multiplier rectification voltage can enable the plasma torch to obtain a continuous and stable arc. At the same time, compared with the three - times voltage multiplier rectification in the prior art, the present utility model saves electrical energy.

[0027] As Figure 3 shown, in another embodiment, the bolt post 4 is provided with a male end 41 and a female end 42. The male end 41 of the lower - layer bolt post 4 passes through the screw hole on the PCB board 1 to connect the female end 42 of the upper - layer bolt post 4. In this embodiment, the connection method using the bolt posts 4 between the PCB boards 1 of each layer is the simplest and has the lowest cost.

[0028] For those skilled in the art, it is obvious that the present utility model is not limited to the details of the above - mentioned exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or basic characteristics of the present utility model. Therefore, in any aspect, the embodiments should be regarded as exemplary and non - restrictive. The scope of the present utility model is defined by the appended claims rather than the above description. Therefore, it is intended to include all changes falling within the meaning and scope of the equivalent elements of the claims in the present utility model.

Claims

1. A voltage doubler rectifier device with an integrated heat dissipation structure, comprising a plurality of PCB boards arranged in layers from top to bottom and bolt columns between the PCB boards; Features: There are gaps for heat dissipation between the PCB boards in each layer, and the blank spaces of a single PCB board are hollowed out; Each layer of PCB boards is not electrically connected to each other, and a single PCB board is independently electrically connected to the transformer in the stove body; A single PCB board is provided with N groups of voltage doubler rectifying units, and a single group of voltage doubler rectifying units includes a plurality of diodes and a plurality of capacitors, wherein N is an integer greater than 16.

2. The voltage doubler rectifier device with an integrated heat dissipation structure according to claim 1, characterized in that: The voltage doubler rectifying unit is provided with an independent anode connecting terminal, and the anode connecting terminal is electrically connected to the plasma torch corresponding to the furnace head.

3. The voltage doubler rectifier device with integrated heat dissipation structure according to claim 2, characterized in that: The voltage doubler rectifying unit is covered with a sealing glue, and the thickness of the sealing glue is less than 1 mm.

4. The voltage doubler rectifier device with integrated heat dissipation structure according to claim 3, characterized in that: The voltage output by the voltage doubler rectifier unit is twice the voltage doubler rectifier voltage.

5. The voltage doubler rectifier device with integrated heat dissipation structure according to claim 1, characterized in that: The bolt column is provided with a male end and a female end, and the male end of the lower bolt column passes through the screw hole on the PCB board to connect with the female end of the upper bolt column.

6. A high-power electric flame cooker, characterized in that: A voltage doubler rectifier device comprising an integrated heat dissipation structure according to any one of claims 1 to 5.

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