Mistaken touch prevention type temperature controller fixing plate structure

Abstract

The utility model relates to the technical field of air energy water heaters, and discloses a mistaken touch prevention type temperature controller fixing plate structure, four outward folded edges and four fixing holes are additionally arranged on a fixing plate body, and a cover plate can be supported structurally, so that the cover plate cannot be in contact with a terminal of a temperature controller, and the temperature controller is prevented from being touched by mistaken touch. A ground wire, a temperature sensing head wire and a temperature controller terminal wire are led to the water heater lining plate, at the moment, the water heater lining plate can serve as an electric insulation layer to prevent electric leakage and electric shock accidents, a steel pipe is welded between the cover plate button and the temperature controller switch button, the cover plate presses the steel pipe and the temperature controller switch tightly, and the outer diameter of the temperature controller switch is larger than the inner diameter of the steel pipe. And short circuit caused by inclined contact of the steel pipe with the temperature controller terminal when the steel pipe deviates from the axis of the temperature controller switch is prevented.

Description

Technical Field

[0001] The utility model relates to the technical field of air energy water heaters, in particular to a mis-touch-proof thermostat fixing plate structure. Background Art

[0002] Household air-energy water heaters usually realize their functions by inner tank, heat pump system and auxiliary electric heating. The start and stop of the heat pump system is controlled by the main control program through the temperature of the upper and lower temperature sensing heads. To ensure that the system will not be damaged by overheating, the upper temperature sensing head is also equipped with a mechanical jump thermostat to cut off the power supply of the whole machine under abnormal circumstances. However, since the thermostat terminal involves strong electricity, there is a safety hazard of electric shock if the user touches it by mistake.

[0003] like Figure 7 The existing thermostat shown uses a piece of unfolded sheet metal as a fixing plate, and the thermostat is coated with thermal grease and installed on the fixing plate. The fixing plate is then pressed directly onto the inner tank, and four nails are fixed on the inner tank of the water heater. An electric heating cover is then provided on the outside for overall waterproofing or electric shock prevention. However, when the thermostat is disconnected for some reason and needs to be reset, the user needs to remove the electric heating cover first. At this time, the thermostat will be directly exposed to the air, and its terminals and power cord will be in contact, increasing the risk of accidental electric shock to the user. To avoid such situations, users usually need to cut off the power supply of the entire machine before removing the cover and resetting it. However, this process is rather cumbersome, requiring not only the user to cut off the power supply, but also to cut off the power supply again when the user powers on again to verify that the entire machine is working after resetting to complete the entire installation process. Utility Model Content

[0004] The purpose of the utility model is to provide a thermostat fixing plate structure that prevents accidental touch, so as to solve the problem in the above background technology that when the thermostat is reset, its terminals and the power cord will be in a contactable state, increasing the risk of electric shock to the user due to accidental touch.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A thermostat fixing plate structure with an anti-mistouch function comprises a fixing plate body, a thermostat is installed in the middle of the fixing plate body, four fixing holes are arranged on the outer sides of the four corners of the thermostat, and the fixing holes are connected to the inner tank of the water heater through fixing plate nails; an inverted trapezoidal groove is provided at the upper end of the fixing plate body, and a semicircular slot hole is provided at the relative position on the left and right sides thereof, and the two slot holes respectively divide the two sides of the fixing plate body into four edges, and the four edges are respectively folded outward to form four corresponding folded edges, and the folded edges extend obliquely upward and are folded inward at the top to form four first connecting pieces, each of the first connecting pieces is provided with a first connecting hole, and the first connecting hole is connected to a cover plate.

[0007] Furthermore, ground wire spikes are respectively installed on the inner tank outside the two semicircular slots of the fixing plate, and the ground wire spikes are respectively connected to ground wires. One side of the ground wire is led to the water heater lining in direction A, and the other side of the ground wire is led to the water heater tank color plate in direction B.

[0008] Furthermore, a temperature sensing head seeding nail is installed on the inner tank inside the inverted trapezoidal groove of the fixing plate, and the temperature sensing head seeding nail is connected with a temperature sensing head wire, and the temperature sensing head wire is led to the water heater lining plate in the A direction.

[0009] Furthermore, a switch is provided in the middle of the thermostat, and four temperature control terminals are evenly arranged around the thermostat. The thermostat terminals are connected with thermostat terminal wires, and the thermostat terminal wires are led to the water heater lining in direction A.

[0010] Furthermore, the cover plate is in the shape of a square box, and the fixed plate, thermostat, ground wire pins, and temperature sensor pins are covered inside the cover plate. The left and right sides of the cover plate are completely sealed, and second connecting plates are respectively provided at positions on the upper and lower sides corresponding to the four first connecting plates. Each of the second connecting plates is provided with a second connecting hole, and the cover plate is connected to the fixed plate through the first and second connecting holes.

[0011] Furthermore, the upper and lower sides are preset with wire passages, and the ground wire, temperature sensing head wire, and thermostat terminal wire are led to corresponding positions after passing through the wire passages.

[0012] Furthermore, a button is provided on the cover plate at a position corresponding to the thermostat switch, a section of steel pipe is welded between the cover plate button and the thermostat switch button, and the cover plate presses the steel pipe and the thermostat switch to prevent the cover plate from contacting the thermostat terminal and causing a short circuit.

[0013] Furthermore, the outer diameter of the thermostat switch is larger than the inner diameter of the steel pipe.

[0014] Furthermore, the fixing plate structure is used to connect the thermostat with the inner tank of the water heater.

[0015] Compared with the prior art, the beneficial effects of the utility model are:

[0016] The utility model further optimizes the existing fixing plate on the original basis, adds four outward folded edges and four fixing holes, and can structurally support the cover plate so that the cover plate does not contact the terminals of the thermostat.

[0017] The ground wire is led from the outside of the fixing plate to the water heater lining and the water tank color plate; the temperature sensor and thermostat terminal wiring is led from the inside of the fixing plate to the water heater lining. All wires are inside the cover. Except for the upper and lower wire positions, the cover and the inner tank are sealed structures, and users cannot directly touch the terminals. The ground wire, temperature sensor wire, and thermostat terminal wire are led to the water heater lining. At this time, the water heater lining can serve as an electrical insulation layer to prevent leakage and electric shock accidents.

[0018] The colored plate of the water heater is connected to the ground wire. When leakage occurs, the current flows to the ground through the ground wire and will not pass through the human body, thus ensuring the safety of the user. At the same time, when an electrical problem occurs inside the water heater, the ground wire can quickly introduce the fault current into the ground, preventing the fault current from damaging the electrical components inside the water heater, thereby ensuring the normal operation of the water heater.

[0019] A section of steel pipe is welded between the cover button and the thermostat switch button. The cover presses the steel pipe and the thermostat switch tightly. The outer diameter of the thermostat switch is larger than the inner diameter of the steel pipe to prevent the steel pipe from tilting and contacting the thermostat terminal when the axis of the steel pipe and the thermostat switch is offset, causing a short circuit.

[0020] The thermostat fixing plate structure of the utility model provides protection for the thermostat of the water heater, and the user cannot touch the terminals with strong electricity from here, thus avoiding the problem of electric shock caused by accidental touch, improving the safety quality of the product, and increasing the convenience of subsequent installation for the user. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is the front view of the thermostat fixing plate structure of the utility model;

[0022] Figure 2 This is a left view of the thermostat fixing plate structure of the utility model;

[0023] Figure 3 This is the front view of the cover plate structure of the utility model;

[0024] Figure 4 This is a left view of the cover structure of the utility model;

[0025] Figure 5 This is a wiring diagram of the utility model;

[0026] Figure 6 This is a top view of the thermostat fixing plate structure of the utility model;

[0027] Figure 7 This is the front view of the utility model air energy water heater;

[0028] Figure 8 This is a front view of the fixing plate of the prior art of the utility model;

[0029] In the figure: 100-inner tank, 110-temperature sensor pin, 120-ground wire pin, 200-fixing plate body, 210-thermostat, 211-switch, 212-terminal, 220-folded edge, 221-first connecting piece, 222-first connecting hole, 230-fixing hole, 300-cover plate, 310-button, 320-second connecting piece, 321-second connecting hole, 330-steel pipe, 400-existing fixing plate, 410-existing thermostat, 411-existing terminal, 420-existing fixing hole, 430-existing ground wire pin, A-water heater lining direction, B-water heater tank color plate direction. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0031] like Figure 1 and 2 As shown, a thermostat fixing plate structure with an anti-mistouch type includes a fixing plate body 200, a thermostat 210 is installed in the middle of the fixing plate body 200, and four fixing holes 230 are arranged on the outer sides of the four corners of the thermostat 210, and the fixing holes 230 are connected to the water heater tank 100 through fixing plate nails; an inverted trapezoidal groove is opened at the upper end of the fixing plate body 200, and a semicircular slot hole is opened at the relative position of the left and right sides, and the two slot holes respectively divide the two sides of the fixing plate body 200 into four edges, and the four edges are folded outward to form four corresponding folding edges 220, and the folding edges 220 extend obliquely upward and fold inward at the top to form four first connecting pieces 221, and each of the first connecting pieces 221 is provided with a first connecting hole 222, and the first connecting hole 222 is connected to the cover plate 300. The design of the folding edge 220 inclined upward can support the cover plate 300 in structure, so that the cover plate 300 cannot contact the terminal 212 of the thermostat 210.

[0032] like Figure 5 As shown, ground wire spikes 120 are respectively installed on the inner tank 100 outside the two semicircular slots of the fixing plate, and the ground wire spikes 120 are respectively connected to ground wires. One side of the ground wire is led to the water heater liner (not shown in the figure) in direction A, and the other side of the ground wire is led to the water heater tank color plate in direction B.

[0033] like Figure 5As shown, a temperature sensing head spike 110 is installed on the inner tank 100 inside the inverted trapezoidal groove of the fixing plate, and the temperature sensing head spike 110 is connected with a temperature sensing head wire, and the temperature sensing head wire is led to the water heater lining plate in the A direction.

[0034] like Figure 5 As shown, a switch 211 is provided in the middle of the thermostat 210 , and four temperature control terminals 212 are evenly arranged around it. The thermostat 210 terminal 212 is connected with a thermostat 210 terminal 212 wire, and the thermostat 210 terminal 212 wire is led to the water heater lining in direction A.

[0035] In actual use, the water heater lining is generally installed inside the water heater cylinder or the inner tank 100, which can isolate the direct contact between water and the water heater inner tank 100, reduce the deposition of scale and the occurrence of corrosion, thereby extending the service life of the water heater; it can also optimize the flow and heating effect of hot water and improve the thermal efficiency of the water heater; at the same time, it helps to reduce heat loss, improve the heating speed and insulation effect of hot water; it can also help maintain the structural stability of the water heater and prevent safety accidents such as explosions caused by excessive internal pressure. In addition, the ground wire, the temperature sensing head wire, and the thermostat 210 terminal 212 wire are led to the water heater lining. At this time, the water heater lining can be used as an electrical insulation layer to prevent leakage and electric shock accidents.

[0036] In actual use, the water heater color plate is a water heater shell made of a composite material, which is mainly made by coating an organic coating or film on the surface of a substrate. The substrate mainly includes a galvanized substrate, an aluminum-zinc-coated substrate, a cold-rolled substrate, an electro-galvanized substrate, etc. The coating layer mainly includes fluorocarbon (PVDF), silicon-modified polyester (SMP), high weather-resistant polyester (HDP), ordinary polyester (PE), etc.

[0037] In actual use, the colored plate of the water heater serves as the outer shell of the water heater. When it is connected to the ground wire, once leakage occurs inside the water heater, the leakage current will quickly flow to the ground through the ground wire instead of through the human body, thus ensuring the safety of the user; at the same time, when an electrical problem occurs inside the water heater, the ground wire can quickly introduce the fault current into the ground, preventing the fault current from damaging the electrical components inside the water heater, thereby ensuring the normal operation of the water heater.

[0038] like Figure 3 and 4 As shown, the cover plate 300 is in the shape of a square box, and the fixed plate 2, the thermostat 210, the ground wire seeding nail 120, and the temperature sensing head seeding nail 110 are covered inside the cover plate 300. The left and right sides of the cover plate 300 are completely sealed, and the upper and lower sides thereof are respectively provided with second connecting pieces 320 at positions corresponding to the four first connecting pieces 221, and each of the second connecting pieces 320 is provided with a second connecting hole 321, and the cover plate 300 is connected to the fixed plate through the first and second connecting holes 321.

[0039] like Figure 5 and 6 As shown, the upper and lower sides are preset with wire passages, and the ground wire, the temperature sensing head wire, and the temperature controller 210 terminal 212 wire pass through the wire passages and are led to corresponding positions.

[0040] like Figure 6 As shown, a button 310 is provided on the cover plate 300 at a position corresponding to the switch 211 of the thermostat 210, and a section of steel pipe 330 is welded between the button 310 of the cover plate 300 and the switch 211 of the thermostat 210. The cover plate 300 presses the steel pipe 330 and the switch 211 of the thermostat 210 to prevent the cover plate 300 from contacting the terminal 212 of the thermostat 210 and causing a short circuit.

[0041] In actual use, the outer diameter of the switch 211 of the thermostat 210 is larger than the inner diameter of the steel pipe 330 to prevent the steel pipe 330 from tilting and contacting the terminal 212 of the thermostat 210 and causing a short circuit when the axis of the steel pipe 330 and the switch 211 of the thermostat 210 are offset.

[0042] like Figure 7 As shown, the fixing plate structure is used to connect the thermostat 210 with the water heater inner tank 100 .

[0043] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art 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 appended claims and their equivalents.

Claims

1. A thermostat fixing plate structure for preventing accidental touch, characterized in that: It includes a fixing plate body, a thermostat is installed in the middle of the fixing plate body, four fixing holes are arranged on the outer sides of the four corners of the thermostat, and the fixing holes are connected to the inner tank of the water heater through the fixing plate nails; an inverted trapezoidal groove is opened on the upper end of the fixing plate body, and a semicircular slot hole is opened at the relative position on the left and right sides, and the two slot holes respectively divide the two sides of the fixing plate body into four edges, and the four edges are folded outwards to form four corresponding folded edges, and the folded edges extend obliquely upward and are folded inwards at the top to form four first connecting pieces, each of the first connecting pieces is provided with a first connecting hole, and the first connecting hole is connected to the cover plate.

2. The anti-mistake-touch thermostat fixing plate structure according to claim 1, characterized in that: Ground wire spikes are respectively installed on the inner shells outside the two semicircular slots of the fixing plate, and the ground wire spikes are respectively connected to ground wires. One side of the ground wire is led to the water heater lining plate in direction A, and the other side of the ground wire is led to the water heater tank color plate in direction B.

3. The anti-mistake-touch thermostat fixing plate structure according to claim 1, characterized in that: A temperature sensing head seeding nail is installed on the inner tank inside the inverted trapezoidal groove of the fixing plate, and the temperature sensing head seeding nail is connected with a temperature sensing head wire, and the temperature sensing head wire is led to the water heater lining plate in the A direction.

4. The anti-mistouch thermostat fixing plate structure according to claim 1, characterized in that: A switch is arranged in the middle of the thermostat, and four temperature control terminals are evenly arranged around it. The thermostat terminals are connected with thermostat terminal wires, and the thermostat terminal wires are led to the water heater lining in direction A.

5. The anti-mistake-touch thermostat fixing plate structure according to claim 4, characterized in that: The cover plate is in the shape of a square box, and the fixing plate, thermostat, ground wire pins, and temperature sensor pins are covered inside the cover plate. The left and right sides of the cover plate are completely sealed, and second connecting plates are respectively provided on the upper and lower sides at positions corresponding to the four first connecting plates. Each of the second connecting plates is provided with a second connecting hole, and the cover plate is connected to the fixing plate through the first and second connecting holes.

6. The anti-mistouch thermostat fixing plate structure according to claim 5, characterized in that: The upper and lower sides are preset with wire passages, and the ground wire, temperature sensing head wire, and thermostat terminal wire are led to corresponding positions after passing through the wire passages.

7. The anti-mistaken-touch thermostat fixing plate structure according to claim 6, characterized in that: A button is arranged on the cover plate at a position corresponding to the thermostat switch, a section of steel pipe is welded between the cover plate button and the thermostat switch button, and the cover plate presses the steel pipe and the thermostat switch tightly to prevent the cover plate from contacting the thermostat terminal and causing a short circuit.

8. The anti-mistake-touch thermostat fixing plate structure according to claim 7, characterized in that: The outer diameter of the thermostat switch is greater than the inner diameter of the steel pipe.

9. The anti-mistouch thermostat fixing plate structure according to any one of claims 1 to 8, characterized in that: The fixing plate structure is used for connecting the thermostat with the inner tank of the water heater.

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