CN107644780B

CN107644780B - Temperature controller capable of switching voltage

Info

Publication number: CN107644780B
Application number: CN201610580094.3A
Authority: CN
Inventors: 蒋仙保
Original assignee: Individual
Current assignee: Individual
Priority date: 2016-07-22
Filing date: 2016-07-22
Publication date: 2020-04-14
Anticipated expiration: 2036-07-22
Also published as: CN107644780A

Abstract

The invention relates to a temperature controller capable of switching voltage, which comprises a plastic shell, a central support, an L pole inserting piece, an N pole inserting piece, a D1 pole elastic piece, a D2 pole elastic piece, a D3 pole elastic piece, an N pole elastic piece, a cover plate, an iron plate, a temperature sensing piece, an upper guide pillar and a lower guide pillar, wherein the central support is assembled at the center of the plastic shell, the central support is provided with the upper guide pillar and the lower guide pillar which are staggered into 90 degrees and do not intersect, the outer side of the central support is respectively provided with the D1 pole elastic piece, the D2 pole elastic piece, the D3 pole elastic piece, the N pole elastic piece, the L pole inserting piece and the N pole inserting piece, the top of the plastic shell is provided with the cover plate.

Description

Temperature controller capable of switching voltage

Technical Field

The invention relates to a temperature sensitive controller capable of switching different voltages for use, and belongs to the field of household appliances.

Background

With the continuous improvement of the requirement of residents on living quality, products which are innovative in function, healthy, energy-saving, fashionable, convenient to use and fast are further accepted by the market, heating devices such as electric kettles, electric cookers and electric stewpots are widely applied to families, but manufacturers of the existing products such as the electric kettles and the electric cookers limit the rated voltage of normal work when leaving factories, the equipment cannot work normally under the condition of different voltages, and health and environmental protection are advocated along with the improvement of living standard. Therefore, when people go out to different countries or regions, the equipment cannot be used due to different voltages, so that the life is inconvenient and quick, and social resources are wasted.

Disclosure of Invention

The invention aims to adjust different circuits on the temperature controller according to different voltages so that the sum voltage is matched, the electric appliance cannot be damaged due to voltage, the temperature control and protection effect can be realized during the working process of the electric appliance, and the temperature controller with the voltage switching function, which is simple in structure, convenient to install, stable and reliable in contact and long in service life, is provided.

The technical scheme of the switchable voltage temperature controller is as follows: a central pillar is arranged in the middle of a plastic shell, two staggered upper and lower conductors forming an angle of 90 degrees are arranged on the central pillar, an N pole elastic sheet, a D1 pole elastic sheet, a D2 pole elastic sheet, a D3 pole elastic sheet, an L pole insertion sheet and an N pole insertion sheet are respectively arranged in the plastic shell by taking the central pillar as the center, a plastic cover plate is arranged above the shell, two ceramic rods are arranged on the plastic cover plate, an iron frame is arranged above the plastic cover plate, and two temperature sensing sheets are respectively arranged on the iron frame.

The temperature controller capable of switching voltage of the invention is characterized in that a round hole is arranged at the bottom of a plastic shell, a limit block is arranged on the edge of the round hole at the bottom, one end of a central strut is assembled on the plastic shell through the round hole, the limit block is matched with a step on the central strut and is used for limiting the rotation angle of the central strut, different circuits in the temperature controller are adjusted to realize the switching function under different voltages, two staggered upper and lower round holes which are not intersected at 90 degrees are respectively arranged on the central strut, an upper guide pillar and a lower guide pillar are respectively assembled on the upper and lower round holes, a D1 pole elastic sheet is arranged on the left side of the central strut, one end of a D1 pole elastic sheet extends out two upper and lower copper sheets, the upper and lower copper sheets respectively press the surface of the central strut and the lower guide pillar assembled on the central strut, the other end of the D1 pole elastic sheet is connected with an L pole inserting sheet through a, the D3 utmost point shell fragment contacts the lower guide pillar of assembly on the center pillar respectively, and the center pillar outside, the back of center pillar, be equipped with a N utmost point shell fragment, N utmost point shell fragment one end stretch out have two shell fragments about, paste respectively and assemble the upper guide pillar and the center pillar outside surface on the center pillar, the other end of N utmost point shell fragment then links to each other through a set of normally closed contact with the N utmost point inserted sheet, the front of center pillar, be equipped with D2 utmost point shell fragment respectively, and D3 utmost point shell fragment, the upper guide pillar of assembling on the center pillar is being sticis being pressed to D2 utmost point shell fragment, the shell surface of center pillar is being pressed to D3 utmost point shell fragment.

The mutual connection of the central pillar, the D1 pole spring plate, the D2 pole spring plate, the D3 pole spring plate and the N pole spring plate is characterized in that under the condition of low voltage, the D1 pole spring plate is connected with the D3 pole spring plate through the lower guide pillar, the D2 pole spring plate is connected with the N pole spring plate through the upper guide pillar, and under the condition of high voltage, the central pillar is required to be rotated by 90 degrees, so that the D1 pole spring plate is separated from the lower guide pillar, the D1 pole spring plate is not connected with the D3 pole spring plate, meanwhile, the D2 pole spring plate is separated from the upper guide pillar in a contact mode, the D2 pole spring plate is not connected with the N pole spring plate, and the D3 pole spring plate is connected with the N pole spring plate through the lower guide pillar.

Plastic casing upper portion be equipped with a apron, there is and central pillar complex circular slot at the apron center, there is the porcelain rod hole that is used for assembling the porcelain rod on the apron main part plane, its downthehole porcelain rod that is equipped with respectively, be used for the normally closed contact of the utmost point inserted sheet of disconnect L and the utmost point shell fragment of D1 respectively, the normally closed contact that links to each other between the utmost point inserted sheet of N and the utmost point shell fragment, the top of apron is equipped with an iron plate, be equipped with two temperature-sensing pieces in the corresponding place in two porcelain rod holes of apron in the iron plate main part, the iron plate side has the hole site that is used for the location respectively, and be used for fastening the screw hole of iron stand, the iron.

The temperature sensing piece passes through under certain temperature condition, is used for the normally closed contact and the normally closed contact between N utmost point inserted sheet, the N utmost point shell fragment of disconnection L utmost point inserted sheet, D1 utmost point shell fragment respectively through the porcelain rod.

The temperature controller of the changeable voltage of this technical scheme, it is convenient to switch the circuit under the different voltage circumstances, and the good reliability, and can play the effect of temperature protection at the during operation.

Drawings

Fig. 1 is a perspective view of a switchable voltage thermostat.

Fig. 2 is a schematic top view of the internal structure of the switchable voltage thermostat.

Fig. 3 is a sectional view in the direction a-a of fig. 2.

Fig. 4 is a schematic diagram of the internal structure of the switchable voltage thermostat and the mating external load connection.

Detailed Description

The invention discloses a voltage switchable temperature controller, which is a schematic overall three-dimensional view of the voltage switchable temperature controller shown in fig. 1 and comprises a main body 101 and an iron frame 106.

Fig. 2 is a schematic top view of an internal structure of a switchable voltage thermostat, fig. 3 is a cross-sectional view of fig. 2 in a direction of a-a, the main body 101 is composed of a plastic casing 202, a cover plate 103, a central pillar 204, an upper guide pillar 205, a lower guide pillar 201, an N-pole insert 211, an L-pole insert 212, an N-pole insert 208, a D1-pole insert 203, a D2-pole insert 206, and a D3-pole insert 207, the main body of the plastic casing 202 is similar to an uncovered square box, the bottom of the plastic casing 202 has a circular hole 302, a limit block 209 is arranged on the edge of the circular hole, one end of the central pillar 204 is assembled on the plastic casing 202 through the circular hole 302, the limit block 209 is matched with a step 301 on the central pillar 204 to limit the rotation angle of the central pillar 204, and is used to adjust different circuits in the thermostat to realize a switching function at different voltages, the main body, the main body is respectively provided with two round holes staggered up and down to form 90-degree non-intersection, the upper round hole and the lower round hole are respectively provided with an upper guide post 205 and a lower guide post 201, the left side of a central pillar 204 is provided with a D1 pole elastic sheet 203 which is assembled on a plastic shell 202 through a clamping groove on the plastic shell 202, one end of the D1 pole elastic sheet 203 extends out of an upper copper sheet and a lower copper sheet, the lower copper sheet 401 is tightly pressed on the lower guide post 201 assembled on the central pillar 204, the upper copper sheet 402 is attached to the outer surface of the central pillar 204, and the other end of the D1 pole elastic sheet 203 is connected with an L pole inserting sheet 212 through a group; the right side of the central pillar 204 is located on the same horizontal position of the lower guide pillar 201, there is a D3 pole spring 207, which is fixed on the plastic shell 202 through the slot on the plastic shell 202, one end of the D3 pole spring 207 presses the lower guide pillar 201 mounted on the central pillar 204, which is connected with the D1 pole spring 203 through the lower guide pillar 201 on the central pillar 204, the other end 403 of the D3 pole spring 207 is located in front of the central pillar 204, which is in the same plane with the lower guide pillar 201 mounted on the central pillar 204, and presses the outer surface of the central pillar 204, the central pillar 204 is rotated under different voltages, so that the D3 pole spring 207 and the D1 pole spring 203, which are originally in a connected state, are disconnected to form another circuit, the back of the central pillar 204, there is an N pole spring 208, and the N pole spring 208 is fixed on the plastic shell 202 through the slot of the plastic shell 202, one end of the N pole elastic sheet 208 extends out of an upper elastic sheet and a lower elastic sheet, the upper elastic sheet 404 is pressed against an upper guide post 205 assembled on the central support 204, the lower elastic sheet 405 is adhered to the outer surface of the central support 204, the other end of the N pole elastic sheet 208 is connected with the N pole inserting sheet 211 through a group of normally closed contacts 210, in front of the central support 204, at the level of the upper guide column 205, there is a D2 pole spring 206, which is fixed on the plastic shell 202 through a slot on the plastic shell 202, the D2 pole spring 206 presses the upper guide post 205 assembled on the center pillar 204, which is connected with the N-pole spring plate 208 through the upper guide post 205, rotates the center pillar 204 at different voltages, the D2 pole spring 206 and the N pole spring 08 which are originally in the connection state are disconnected to form another circuit, the L pole inserting piece 212 and the N pole inserting piece 211 are respectively assembled in the corresponding clamping grooves of the plastic shell.

In a specific embodiment, as shown in fig. 4, which is a schematic diagram of the connection between the internal structure of the switchable voltage temperature controller and the external load, the external loads R1 and R2 are elements such as a heating tube and a resistor connected to the temperature controller, and it is first required that two loads R1 and R2 are provided outside, the two loads R1 and R2 are connected in series, one wire is respectively led out from one open end of the two loads R1 and R2, which are respectively D1-1 and D3-1, and one wire is also led out from the center of the series connection of the two loads R1 and R2, which is D2-1, the leads D1-1, D2-1 and D3-1 are respectively connected with the D1 pole spring 203, D2 pole spring 206 and D3 pole spring 207 on the temperature controller, for example, in a 110V voltage state, the L pole insert sheet and the N pole insert sheet 211 are respectively connected to the positive pole and the negative pole of 110V, and the circuit loop is that current flows into the L pole insert sheet 212 and D1, the current flows into one end R1-1 of a load R1 through a lead D1-1 connected with a D1 pole elastic sheet 203, and simultaneously a part of current flows into a D3 pole elastic sheet 207 through a lower guide post 201 connected with the D1 pole elastic sheet 203 and then flows into one end R2-1 of the load R2 through a lead D3-1 line, so that one end R1-1 of a load R1 and one end R2-1 of the load R2 are at the same potential, the current flows into R1-1 and R2-2 through respective loads R1 and R2 at the same time and flows out from the common end of the two loads R1 and R2, so that the two loads R1 and R2 are in a parallel state, flows into a D2 pole insertion sheet 206 through the lead D2-1, flows into an N pole elastic sheet 208 through an upper guide post 205 on a central support 204, and then is connected with the negative pole of a power supply through an N pole insertion sheet 208 to form a closed loop; if the voltage of 220V is connected, after ninety degrees of the central strut 204 needs to be rotated, the L pole inserting piece 212 and the N pole inserting piece 211 are respectively connected with the positive pole and the negative pole of 220V, the circuit loop is that current flows into the D1 pole elastic piece 203 through the L pole inserting piece 212 and flows into one end R1-1 of a load R1 through a lead D1-1 connected with the D1 pole elastic piece 203, the D1 pole elastic piece 203 is separated from the lower guide pillar 201 after the central strut 204 rotates 90 degrees, so that the D3 pole elastic piece 207 cannot be communicated with the D3538 pole elastic piece, the current flows into one end R1-1 of the load R1 through the lead D1-1 and flows into one end R2-2 of the other load R2 through the other end R1-2 of the load R1 and flows out from the other end R2-1 of the load R2, so that the two loads R1 and R2 are in a serial state, flows into the D3 pole elastic piece 207 through the lead D3-1 and is assembled on the central strut 204, and finally connected with the negative pole of the 220V power supply through the N pole plug-in sheet 208 to form a closed loop.

The cover plate 103 is assembled on the upper part of the plastic shell 202, a circular groove matched with the central support 204 is arranged in the center of the cover plate 103, two porcelain rod holes for assembling porcelain rods are arranged on the main body plane of the cover plate 103, and the first porcelain rod 104 and the second porcelain rod 109 are respectively assembled in the porcelain rod holes.

The iron frame 106 comprises an iron plate 110, a first temperature sensing piece 105 and a second temperature sensing piece 108, the main body of the iron plate 110 is a square plate,

hole sites

107 and 102 used for positioning and screw holes used for fastening the iron frame are arranged on two sides of the iron plate, the iron frame 106 is fastened on the plastic shell 202 through screws, the first temperature sensing piece 105 and the second temperature sensing piece 108 are assembled on the iron plate, the lower parts of the first temperature sensing piece 105 and the second temperature sensing piece 108 face the first porcelain rod 104 and the second porcelain rod 109 respectively, under a certain temperature condition, the first temperature sensing piece 105 is disconnected through the first porcelain rod 104 after being deformed and is connected with a normally closed contact 213 on an L pole inserting piece 212 and a D1 pole elastic piece 203, and the second temperature sensing piece 108 is disconnected through the second porcelain rod 109 and is connected with the normally closed contact 210 on the N pole inserting piece 211 and the N pole elastic piece 208, so that a protection function is achieved and the device is prevented from being damaged.

Claims

1. The switchable voltage temperature controller comprises a plastic shell (202), a central support (204), an L pole inserting sheet (212), an N pole inserting sheet (211), a D1 pole elastic sheet (203), a D2 pole elastic sheet (206), a D3 pole elastic sheet (207), an N pole elastic sheet (208) and a cover plate (103), the temperature sensing device comprises an iron plate (110), a temperature sensing piece (105), an upper guide post (205) and a lower guide post (201), wherein a central support (204) is assembled at the center of a plastic shell (202), the upper guide post and the lower guide post are assembled on the central support (204), a D1 pole elastic sheet (203), a D2 pole elastic sheet (206), a D3 pole elastic sheet (207), an N pole elastic sheet (208), an L pole insertion sheet (212) and an N pole insertion sheet (211) are respectively assembled on the outer side of the central support (204), a cover plate (103) is assembled at the top of the plastic shell (202), the iron plate (110) is assembled above the cover plate (103), and a first temperature sensing piece (105) and a second temperature sensing piece (108) are; the central pillar (204) is provided with an upper guide post and a lower guide post, the upper guide post (205) and the lower guide post (201) are arranged in a non-intersecting up-and-down manner and are staggered by 90 degrees; the outer sides of the central support (204) are respectively provided with a D1 pole spring plate (203), a D2 pole spring plate (206), a D3 pole spring plate (207) and an N pole spring plate (208), when the high-voltage work is carried out, the D1 pole spring plate (203) is communicated with the D3 pole spring plate (207) through a lower guide post (201) assembled on the central support, the N pole spring plate (208) is communicated with a D2 pole spring plate (206) through an upper guide post (205) assembled on the central support (204), when the low-voltage work is carried out, the central support (204) is rotated by 90 degrees, the D1 pole spring plate (203) is separated from the lower guide post (201) assembled on the central support (204), so that the D1 pole spring plate (203) is disconnected from the D3 pole spring plate (207), and the N pole spring plate (208) is separated from the upper guide post (205) assembled on the central support (204), so that the D2 pole spring plate (206) is disconnected from the N pole spring plate (208), meanwhile, the D3 pole spring plate (207) is communicated with the lower guide post (201), so that the D3 pole spring plate (207) is communicated with the N pole spring plate (208) through the lower guide post (201); switching between high and low voltage operation requires rotation of the center post (204) by 90 degrees.

2. The switchable voltage thermostat of claim 1, wherein the first temperature sensing piece (105) and the second temperature sensing piece (108) are mounted on the iron plate (110), and under a certain temperature condition, the first temperature sensing piece (105) can be used for disconnecting a set of normally closed contacts (213) connected with the L-pole insert piece (212) and the D1-pole spring piece (203) through a first ceramic rod (104) mounted on the cover plate (103), and the second temperature sensing piece (108) can be used for disconnecting a set of normally closed contacts (210) connected with the N-pole insert piece (211) and the N-pole spring piece (208) through a second ceramic rod (109) mounted on the cover plate (103).