Control cabinet with double-layer heat preservation and heating functions

Abstract

The utility model discloses a control cabinet with double-layer heat preservation and heating functions, which comprises a cabinet body and a cabinet door, a heating device, a temperature sensor and a heat dissipation device are arranged in the cabinet body, the cabinet door is hinged with the cabinet body, the cabinet body further comprises two side plates arranged oppositely, a back plate connected between the two side plates, a top plate and a bottom plate, the side plates, the back plate and the cabinet door respectively comprise an outer panel and an inner panel, a supporting seat is fixed on the inner wall of the outer panel, the inner panel is screwed on the supporting seat through a screw, so that an interlayer is formed between the outer panel and the inner panel, and heat preservation cotton is filled in the interlayer. The control cabinet can be prevented from being affected by outdoor high temperature or low temperature to cause normal operation failure, and normal outdoor operation of the control cabinet can be guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of control cabinets, in particular to a control cabinet with double-layer heat preservation and heating functions. Background Art

[0002] A control cabinet is an electrical cabinet that can control motors and switches. It has protection functions such as overload, short circuit, and phase loss protection. It has the advantages of compact structure, stable operation, and complete functions. The control cabinet can be combined according to the actual control scale. It can realize single cabinet automatic control or multiple cabinets through industrial Ethernet or industrial field bus network to form a distributed control system. The control cabinet can adapt to various industrial automation control occasions of different sizes and is widely used in industries such as power, metallurgy, chemical industry, papermaking, environmental protection and sewage treatment.

[0003] Some components inside the control cabinet have usage conditions, and their normal working conditions are specified accordingly: the upper limit of the ambient air temperature does not exceed 40°C; the average value of the ambient air temperature of 24 degrees Celsius does not exceed 35°C; the lower limit of the ambient air temperature is not lower than -25°C. Whether the temperature is too high or too low, exceeding this temperature limit will directly affect the operation of the control cabinet. Many manufacturers' control cabinets are operated outdoors. Not only are they directly exposed to sunlight and generate high temperatures, but they also generate heat during operation. Therefore, in the hot summer season, the temperature inside the control cabinet box will reach above 60°C. The temperature at this time greatly exceeds the ambient temperature specified by the low-voltage control cabinet, which will cause the electrical components in the control cabinet box to overheat and malfunction; in the cold northern regions in winter, when the temperature is extremely cold and below -25°C, the electrical components in the control cabinet box will also malfunction. Utility Model Content

[0004] In order to overcome the above-mentioned deficiencies in the prior art, the purpose of the utility model is to provide a control cabinet with double-layer thermal insulation and heating functions.

[0005] The utility model is realized through the following technical scheme: a control cabinet with double-layer thermal insulation and heating function, comprising a cabinet body and a cabinet door, wherein a heating device, a temperature sensor and a heat dissipation device are arranged inside the cabinet body, and the cabinet door is hinged to the cabinet body, wherein the cabinet body also comprises two side panels arranged opposite to each other, a back panel connected between the two side panels, a top panel and a bottom panel, wherein the side panels, the back panel and the cabinet door all comprise an outer panel and an inner panel, a support seat is fixed to the inner wall of the outer panel, and the inner panel is tightened on the support seat by screws to form a sandwich layer between the outer panel and the inner panel, and thermal insulation cotton is filled in the sandwich layer.

[0006] Preferably, the four sides of the outer panel of the utility model are folded into the cabinet body to form a first frame, and the four sides of the inner panel are folded away from the cabinet body to form a second frame. When the inner panel and the outer panel are installed, the second frame is tightly attached to the inner wall of the outer panel to form the interlayer between the outer panel and the inner panel.

[0007] Preferably, the heating device of the utility model comprises a heater installed at the bottom of the cabinet, the heater is provided with a protective cover, and the protective cover is provided with a plurality of heat dissipation holes.

[0008] Preferably, the bottom of the cabinet of the utility model is provided with a base for fixing the heater, and the protective cover is tightened on the base by screws.

[0009] Preferably, at least one air outlet is provided on the top of the cabinet of the utility model, and the heat dissipation device is installed at the air outlet.

[0010] Preferably, the heat dissipation device of the present invention is an exhaust fan.

[0011] Preferably, the temperature sensors of the utility model are provided in plurality and are arranged at equal intervals on the inner wall of the cabinet, the heat dissipation device and the heating device are respectively connected to temperature controllers, and the temperature controller is connected to the temperature sensor.

[0012] Compared with the prior art, the utility model has the following advantages and beneficial effects:

[0013] 1. In the utility model, in the outdoor summer, when the upper limit of the ambient air temperature of the control cabinet exceeds 40°C, the high temperature is converted into an output signal through the temperature sensor and transmitted to the temperature controller, and the temperature controller starts the exhaust fan to discharge the heat in the control cabinet from the air outlet to cool down, so that the temperature of the control cabinet is maintained within the standard range, avoiding malfunctions caused by overheating of electrical components in the control cabinet; in winter, if it is extremely cold and the temperature is lower than -25°C, the low temperature is converted into an output signal through the temperature sensor and transmitted to the temperature controller, and the temperature controller starts the heater to start working, and the heater heats up to restore the temperature in the electric cabinet body to a normal level, avoiding malfunctions caused by electrical components in the control cabinet being affected by low temperature.

[0014] 3. The utility model fills the interlayer between the inner and outer panels with heat-insulating cotton. When the temperature in the control cabinet is too low, the heater is started to reduce the heat loss in the control cabinet and save energy waste.

[0015] 2. The utility model is reasonably designed, efficient and practical, and can prevent the control cabinet from being affected by high or low temperatures outdoors, which may cause it to be unable to operate normally, and is conducive to ensuring that the control cabinet works normally outdoors. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Other features, objects and advantages of the present invention will become more apparent by reading the detailed description of non-limiting embodiments with reference to the following drawings:

[0017] Figure 1 It is a schematic diagram of the structure of the utility model;

[0018] Figure 2 for Figure 1 AA section structure diagram;

[0019] Figure 3 for Figure 1 BB section structure diagram;

[0020] Figure 4 for Figure 2 A is a schematic diagram of the structure of the enlarged view;

[0021] Figure 5 for Figure 2 A schematic diagram of the structure of the enlarged view of B;

[0022] Figure 6 for Figure 3 Schematic diagram of the structure of the C enlarged image;

[0023] in:

[0024] 1—cabinet body, 2—cabinet door, 3—side panel, 4—back panel, 5—top panel, 6—bottom panel, 7—outer panel, 8—inner panel, 9—support seat, 10—interlayer, 11—first frame, 12—second frame, 13—heater, 14—protective cover, 15—heat dissipation hole, 16—base, 17—air outlet, 18—exhaust fan. DETAILED DESCRIPTION

[0025] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0026] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention 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, and therefore cannot be understood as a limitation on the present invention. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0027] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" 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 a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0028] Reference Figures 1 to 6 As shown, a control cabinet with double-layer thermal insulation and heating function includes a cabinet body 1 and a cabinet door 2. A heating device, a temperature sensor and a heat dissipation device are arranged inside the cabinet body 1. The cabinet door 2 is hinged to the cabinet body 1, wherein the cabinet body 1 also includes two side panels 3 arranged opposite to each other, a back panel 4 connected between the two side panels 3, a top panel 5 and a bottom panel 6. The side panels 3, the back panel 4 and the cabinet door 2 all include an outer panel 7 and an inner panel 8. A support seat 9 is fixed to the inner wall of the outer panel 7. The inner panel 8 is tightened on the support seat 9 by screws to form an interlayer 10 between the outer panel 7 and the inner panel 8. Insulation cotton is filled in the interlayer 10. Through the setting of the insulation cotton, when the temperature of the control cabinet is too low, the heating device is started to work, which can reduce the heat loss in the control cabinet and save energy waste.

[0029] Specifically, the four sides of the outer panel 7 are folded inwardly of the cabinet body 1 to form a first frame 11, and the four sides of the inner panel 8 are folded away from the cabinet body 1 to form a second frame 12. When the inner panel 8 and the outer panel 7 are installed, the second frame 12 is tightly attached to the inner wall of the outer panel 7 to form the interlayer 10 between the outer panel 7 and the inner panel 8, and the thermal insulation cotton is then filled in the interlayer, thereby being able to play a role in insulating the control cabinet to prevent heat loss.

[0030] In addition, the heating device of the utility model includes a heater 13 installed at the bottom of the cabinet 1, a protective cover 14 is provided on the heater 13, and a plurality of heat dissipation holes 15 are provided on the protective cover 14. The protective cover 14 can protect the heater 13 to prevent the staff from colliding with the heater 13 and damaging it when installing electronic components or repairing them in the control cabinet.

[0031] In order to facilitate the fixing of the heater, a base 16 for fixing the heater is provided at the bottom of the cabinet 1, and the protective cover 14 is screwed onto the base 16, so that the heater can be easily disassembled and assembled.

[0032] It should be noted that two air outlets 17 are provided on the top of the cabinet 1, and the heat dissipation device is installed at each air outlet 17. When the temperature in the control cabinet is too high, the exhaust fan in the heat dissipation device is started to discharge the heat of the control cabinet from the air outlet so that the temperature in the control cabinet reaches a normal range.

[0033] The heat dissipation device of the present invention is an exhaust fan 18. Of course, the heat dissipation device may also be other prior art devices, such as an exhaust fan.

[0034] It should also be noted that there are a number of temperature sensors which are arranged at equal intervals on the inner wall of the cabinet 1 , the heat dissipation device and the heating device are respectively connected to temperature controllers, and the temperature controllers are connected to the temperature sensors.

[0035] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A control cabinet with double-layer heat preservation and heating functions, comprising a cabinet body (1) and a cabinet door (2), wherein a heating device, a temperature sensor and a heat dissipation device are arranged inside the cabinet body (1), and the cabinet door (2) is hinged to the cabinet body (1), wherein the cabinet body (1) further comprises two side panels (3) arranged opposite to each other, a back panel (4) connected between the two side panels (3), a top panel (5) and a bottom panel (6), characterized in that: The side panels (3), back panel (4) and cabinet door (2) all include an outer panel (7) and an inner panel (8); a support seat (9) is fixed to the inner wall of the outer panel (7); the inner panel (8) is screwed onto the support seat (9) to form a sandwich (10) between the outer panel (7) and the inner panel (8); and thermal insulation cotton is filled in the sandwich (10).

2. A control cabinet with double-layer heat preservation and heating function according to claim 1, characterized in that: The four sides of the outer panel (7) are folded inwardly of the cabinet body (1) to form a first frame (11), and the four sides of the inner panel (8) are folded away from the cabinet body (1) to form a second frame (12). When the inner panel (8) and the outer panel (7) are installed, the second frame (12) is tightly attached to the inner wall of the outer panel (7) to form the interlayer (10) between the outer panel (7) and the inner panel (8).

3. A control cabinet with double-layer heat preservation and heating function according to claim 1, characterized in that: The heating device comprises a heater (13) installed at the bottom of the cabinet (1); a protective cover (14) is provided on the heater (13); and a plurality of heat dissipation holes (15) are provided on the protective cover (14).

4. A control cabinet with double-layer heat preservation and heating function according to claim 3, characterized in that: The bottom of the cabinet (1) is provided with a base (16) for fixing the heater, and the protective cover (14) is screwed onto the base (16) by means of screws.

5. A control cabinet with double-layer heat preservation and heating function according to claim 4, characterized in that: At least one air outlet (17) is provided on the top of the cabinet (1), and the heat dissipation device is installed at the air outlet (17).

6. A control cabinet with double-layer heat preservation and heating function according to claim 5, characterized in that: The heat dissipation device is an exhaust fan (18).

7. A control cabinet with double-layer heat preservation and heating function according to claim 1, characterized in that: A plurality of temperature sensors are provided and are arranged at equal intervals on the inner wall of the cabinet (1); the heat dissipation device and the heating device are respectively connected to a temperature controller, and the temperature controller is connected to the temperature sensor.

Images