Plate-shaped heater capable of heating uniformly

Abstract

The utility model relates to a plate-shaped heater capable of heating uniformly, and belongs to the field of plate-shaped heaters. The heater comprises: a bottom plate having a first clamping groove and a groove; the panel is detachably connected to the surface of the bottom plate; the heating wire is clamped in the first clamping groove, the free end of the heating wire is clamped in the groove, the heating wire comprises a first-layer heating wire and a second-layer heating wire, and the first-layer heating wire and the second-layer heating wire are perpendicular to each other; the positioning head sleeves the free end of the heating wire and is clamped in the groove; when the heating wire is clamped in the first clamping groove and the panel is installed on the surface of the bottom plate, a heat preservation cavity is formed between the bottom plate and the panel. According to the plate-shaped heater, the first layer of heating wires and the second layer of heating wires are arranged in the heat preservation cavity, so that the temperature in the heat preservation cavity compensates for the temperature of the portion, not attached to the heating wires, of the panel, and therefore the temperature of the whole panel is evenly distributed, and even heating in the using process is facilitated.

Description

Technical Field

[0001] The utility model relates to a plate-shaped heater, in particular to a plate-shaped heater with uniform heating. Background Art

[0002] The core function of a heater is to convert electrical energy into thermal energy for increasing the temperature. Heaters are typically small in size, have high heating power, intelligent control modes, and high temperature control accuracy. They can be connected to a computer network and have a wide range of applications, including electromagnetic heating, infrared heating, and resistance heating. Heaters are widely used, such as oil tank heaters, which play an important role in industrial production, family life, and other fields. Traditional plate heaters usually heat by adding a heating wire between two layers of panels. Since the two layers of panels are tightly fitted with the heating wire, the temperature of the part that is in contact with the heating wire is higher than that of the part that is not, which leads to uneven heating of the panel. Therefore, it needs to be improved. Utility Model Content

[0003] Based on this, it is necessary to provide a plate heater with uniform heating, which is aimed at the problem that traditional plate heaters usually use a heating wire between two layers of panels for heating. Since the two layers of panels are tightly fitted with the heating wire, the temperature of the part that is in contact with the heating wire is higher than the temperature of the part that is not in contact, which leads to uneven heating of the panel.

[0004] The utility model provides a plate-shaped heater with uniform heating, comprising:

[0005] A bottom plate having a first slot and a groove;

[0006] a panel detachably connected to the surface of the base plate;

[0007] A heating wire is clamped in the first clamping slot, and its free end is clamped in the groove, and includes a first layer of heating wire and a second layer of heating wire, wherein the first layer of heating wire and the second layer of heating wire are perpendicular to each other;

[0008] The positioning head is sleeved on the free end of the heating wire and is clamped in the groove;

[0009] When the heating wire is clamped in the first clamping groove and the panel is installed on the surface of the bottom plate, a heat preservation cavity is formed between the bottom plate and the panel.

[0010] In one embodiment, the first layer of heating wires and the second layer of heating wires each include a bending portion and a connecting portion, the bending portion and the connecting portion are arranged at intervals, the bending portion is connected to an adjacent connecting portion, and the bending directions of adjacent bending portions are opposite.

[0011] In one embodiment, a thermal conductive component is fixedly connected to the surface of the bottom plate, a second slot is provided on the surface of the thermal conductive component, and the second layer of heating wire is clipped into the second slot.

[0012] In one embodiment, a sealing groove is provided on both the bottom plate and the panel, a sealing ring is clamped in the sealing groove, and the sealing ring surrounds the heating wire.

[0013] In one embodiment, a gasket is provided between the positioning head and the base plate.

[0014] In one embodiment, a temperature sensor is installed on the panel, and a temperature sensing element of the temperature sensor is located in the heat preservation cavity.

[0015] In one embodiment, a clamping block is fixedly connected to the panel, a third clamping slot is provided on the base plate for interference fit with the clamping block, both the clamping block and the base plate have mounting holes, and screws are threadedly connected to the mounting holes.

[0016] In one embodiment, two cooling pipes are fixedly connected to the bottom plate, and the free ends of the cooling pipes are threadedly connected to sealing covers. The two cooling pipes are located on the diagonal lines of the bottom plate, and the cooling pipes are connected to the insulation cavity.

[0017] The above-mentioned plate-shaped heater with uniform heating, by arranging the first layer of heating wire and the second layer of heating wire in the insulation cavity, makes the temperature in the insulation cavity compensate for the temperature of the part of the panel that is not in contact with the heating wire, thereby making the temperature distribution of the entire panel uniform, and thus facilitating uniform heating during use. At the same time, the bottom plate and the panel are detachably connected, which is convenient for inspection and replacement of the heating wire. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the present invention or the prior art, a brief introduction will be given below to the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0019] Figure 1 Schematic diagram of a plate-shaped heater structure with uniform heating in one embodiment;

[0020] Figure 2 Schematic diagram of the bottom plate structure in one embodiment;

[0021] Figure 3 Schematic diagram of the heating wire structure in one embodiment;

[0022] Figure 4Schematic diagram of the structure of a plate-shaped heater with uniform heating in one embodiment.

[0023] Reference numerals:

[0024] 100. Bottom plate; 110. Insulation cavity; 120. First card slot; 130. Groove; 140. Thermal conductor; 150. Second card slot; 160. Gasket; 170. Third card slot; 180. Cooling pipe; 190. Sealing cover; 200. Panel; 210. Sealing groove; 220. Sealing ring; 230. Temperature sensor; 240. Block; 250. Mounting hole; 260. Screw; 300. Heating wire; 310. First layer heating wire; 320. Second layer heating wire; 330. Bending portion; 340. Connecting portion; 400. Positioning head. DETAILED DESCRIPTION

[0025] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts shall fall within the scope of protection of the present invention.

[0026] It should be noted that when a component is referred to as being "fixed to" or "disposed on" another component, it may be directly on the other component or there may be a central component. When a component is considered to be "connected to" another component, it may be directly connected to the other component or there may be a central component at the same time. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used in the specification of this utility model are for illustrative purposes only and do not represent the only implementation method.

[0027] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature specified as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of this utility model, "plurality" means at least two, such as two, three, etc., unless otherwise specifically defined.

[0028] In the present invention, unless otherwise expressly specified or limited, when a first feature is "above" or "below" a second feature, it can mean that the first feature is directly in contact with the second feature, or the first feature and the second feature are indirectly in contact through an intermediary. Furthermore, when a first feature is "above," "above," or "above" a second feature, it can mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is higher in level than the second feature. When a first feature is "below," "below," or "below" a second feature, it can mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature is lower in level than the second feature.

[0029] Unless otherwise defined, all technical and scientific terms used in the specification of this utility model have the same meanings as those commonly understood by those skilled in the art to which this utility model belongs. The terms used in the specification of this utility model are only for the purpose of describing specific embodiments and are not intended to limit the utility model. The term "and / or" used in the specification of this utility model includes any and all combinations of one or more of the relevant listed items.

[0030] The following combination Figures 1-4 The utility model is described as a plate-shaped heater with uniform heating.

[0031] like Figure 1 and Figure 2 As shown, in one embodiment, a plate-shaped heater with uniform heating includes a base plate 100 , a panel 200 , a heating wire 300 and a positioning head 400 .

[0032] The base plate 100 has a first latching slot 120 and a groove 130 .

[0033] The panel 200 is detachably connected to the surface of the base plate 100 .

[0034] The heating wire 300 is clamped in the first clamping slot 120, and the free end of the heating wire 300 is clamped in the groove 130. The heating wire 300 includes a first layer of heating wire 310 and a second layer of heating wire 320, which are perpendicular to each other.

[0035] The positioning head 400 is sleeved on the free end of the heating wire 300 , and the positioning head 400 is engaged in the groove 130 .

[0036] When the heating wire 300 is clamped in the first clamping groove 120 and the panel 200 is installed on the surface of the bottom plate 100 , a heat preservation chamber 110 is formed between the bottom plate 100 and the panel 200 .

[0037] The plate-shaped heater with uniform heating, by arranging a first layer of heating wires 310 and a second layer of heating wires 320 in the heat preservation chamber 110, makes the temperature in the heat preservation chamber 110 compensate for the temperature of the portion of the panel 200 that is not in contact with the heating wires 300, thereby making the temperature distribution of the entire panel 200 uniform, thereby facilitating uniform heating during use. At the same time, the base plate 100 and the panel 200 are detachably connected, which facilitates the inspection and replacement of the heating wires 300.

[0038] In this embodiment, Figure 3 The first layer of heating wire 310 and the second layer of heating wire 320 both include a bending portion 330 and a connecting portion 340 . The bending portion 330 and the connecting portion 340 are arranged at intervals. The bending portion 330 is connected to the adjacent connecting portion 340 , and the bending directions of the adjacent bending portions 330 are opposite.

[0039] By designing the shape of the heating wire 300 , the heating wire 300 can be conveniently distributed throughout the entire heat preservation cavity 110 , so that the panel 200 is heated quickly, thereby improving the heating efficiency.

[0040] In this embodiment, a thermal conductor 140 is fixedly connected to the surface of the base plate 100, and a second slot 150 is provided on the surface of the thermal conductor 140. The second layer of heating wire 320 is clamped in the second slot 150. The thermal conductor 140 can support the second layer of heating wire 320 and facilitate heat conduction between the base plate 100 and the panel 200, thereby improving the heating efficiency.

[0041] In this embodiment, a sealing groove 210 is provided on the base plate 100 and the panel 200, and a sealing ring 220 is clamped in the sealing groove 210. The sealing ring 220 surrounds the heating wire 300, and a gasket 160 is provided between the positioning head 400 and the base plate 100. By designing the sealing ring 220 and the gasket 160, the sealing effect of the plate heater can be conveniently improved.

[0042] In this embodiment, a temperature sensor 230 is installed on the panel 200, and the temperature sensing element of the temperature sensor 230 is located in the heat preservation chamber 110, so as to facilitate monitoring the temperature in the heat preservation chamber 110 and further facilitate controlling the temperature as needed.

[0043] In this embodiment, a clamping block 240 is fixedly connected to the panel 200, and a third clamping groove 170 is provided on the base plate 100 for interference fit with the clamping block 240. Both the clamping block 240 and the base plate 100 have mounting holes 250, and a screw 260 is connected to the inner thread of the mounting hole 250.

[0044] During assembly, first put the gasket 160 and the positioning head 400 on the free end of the heating wire 300, and then clamp the first layer of heating wire 310 into the first slot 120. At this time, the second layer of heating wire 320 is just clamped into the second slot 150, and the gasket 160 and the positioning head 400 are both clamped into the groove 130. A part of the sealing ring 220 is clamped into the sealing groove 210 of the base plate 100. At this time, the other part of the sealing ring 220 is exposed. Clamp the block 240 into the third slot 170. At this time, the exposed part of the sealing ring 220 is just clamped into the sealing groove 210 on the panel 200. Finally, tighten the screw 260 into the mounting hole 250 to complete the assembly of the plate heater. It is simple to operate and easy to use. At the same time, it is convenient to repair and replace the heating wire 300.

[0045] In this embodiment, see Figure 4 Two cooling pipes 180 are fixedly connected to the bottom plate 100 , and the free ends of the cooling pipes 180 are threadedly connected to the sealing covers 190 . The two cooling pipes 180 are located on the diagonal lines of the bottom plate 100 , and the cooling pipes 180 are connected to the insulation chamber 110 .

[0046] After the plate-shaped heater is used, the sealing cover 190 is opened, and cooling gas is filled into one of the cooling tubes 180 so that the airflow flows out from the other cooling tube 180, thereby facilitating rapid cooling of the plate-shaped heater.

[0047] The technical features of the above-mentioned embodiments can be combined arbitrarily. In order to make the description concise, not all possible combinations of the technical features in the above-mentioned embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0048] The above-described embodiments merely represent several implementations of the present invention. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that variations and improvements are possible within the scope of the present invention, as would be apparent to one skilled in the art. These variations and improvements fall within the scope of the present invention. Therefore, the scope of the present invention shall be determined by the appended claims.

Claims

1. A plate-shaped heater with uniform heating, characterized in that: include: A bottom plate having a first slot and a groove; a panel detachably connected to the surface of the base plate; A heating wire is clamped in the first clamping slot, and its free end is clamped in the groove, and includes a first layer of heating wire and a second layer of heating wire, wherein the first layer of heating wire and the second layer of heating wire are perpendicular to each other; The positioning head is sleeved on the free end of the heating wire and is clamped in the groove; When the heating wire is clamped in the first clamping groove and the panel is installed on the surface of the bottom plate, a heat preservation cavity is formed between the bottom plate and the panel.

2. The plate-shaped heater with uniform heating according to claim 1, characterized in that: The first layer of heating wires and the second layer of heating wires each include a bending portion and a connecting portion. The bending portion and the connecting portion are arranged at intervals. The bending portion is connected to an adjacent connecting portion, and the bending directions of adjacent bending portions are opposite.

3. The plate-shaped heater with uniform heating according to claim 2, characterized in that: A heat conducting component is fixedly connected to the surface of the bottom plate. A second slot is provided on the surface of the heat conducting component. The second layer of heating wire is clipped into the second slot.

4. The plate-shaped heater with uniform heating according to claim 1, characterized in that: The bottom plate and the panel are both provided with sealing grooves, a sealing ring is clamped in the sealing groove, and the sealing ring surrounds the heating wire.

5. The plate-shaped heater with uniform heating according to claim 4, characterized in that: A gasket is provided between the positioning head and the base plate.

6. The plate-shaped heater with uniform heating according to any one of claims 1 to 5, characterized in that: A temperature sensor is installed on the panel, and a temperature sensing element of the temperature sensor is located in the heat preservation cavity.

7. The plate-shaped heater with uniform heating according to claim 6, characterized in that: A clamping block is fixedly connected to the panel, a third clamping slot is provided on the bottom plate and is interference-fitted with the clamping block, both the clamping block and the bottom plate have mounting holes, and screws are threadedly connected to the mounting holes.

8. The plate-shaped heater with uniform heating according to claim 7, characterized in that: Two cooling pipes are fixedly connected to the bottom plate, and the free ends of the cooling pipes are threadedly connected to sealing covers. The two cooling pipes are located on the diagonal lines of the bottom plate, and the cooling pipes are communicated with the heat preservation cavity.

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