A temperature controller with magnetic blowing

Abstract

The present invention relates to the technical field of temperature controllers, in particular to a temperature controller with magnetic blowing, comprising a shell, a temperature threshold adjustment mechanism, a power-off mechanism, a magnetic blowing mechanism and a power-on mechanism, wherein the power-on mechanism is provided with a contact group; a temperature sensing part of the power-off mechanism is connected to a regulating part of the temperature threshold adjustment mechanism, and an action end of the power-off mechanism is movably connected to the contact group; the power-off mechanism is used to disconnect the contact group when the sensed temperature exceeds a preset temperature; the magnetic blowing mechanism is arranged at the periphery of the contact group, and the magnetic field magnetic flux lines generated by the magnetic blowing mechanism straightly pass through the contact contact surface of the contact group and are parallel to the contact contact surface; the shell is provided with an arc absorbing part in a vertical direction of the magnetic field magnetic flux lines, and the arc absorbing part is located at the periphery of the contact group and encloses the contact group; the problem that the magnetic blowing arc in the temperature controller cannot effectively extinguish the high-temperature arc and also causes damage to surrounding components is solved.

Description

Technical Field

[0001] The invention relates to the technical field of temperature controllers, in particular to a temperature controller with magnetic blowing. Background Art

[0002] Thermostats are widely used in household appliances, industrial equipment and various occasions that require precise temperature control and power off. Their core function is to control the on and off of the circuit by opening and closing the internal contact group according to the change of ambient temperature, and the power-off temperature of the contact group can be adjusted by the temperature threshold adjustment mechanism inside the thermostat. Therefore, the two extended pins of the contact group can be connected in series in the power-on circuit of various devices that require temperature control and power off, so that the equipment installed with the thermostat has safety protection capabilities and improves reliability and safety.

[0003] However, during the disconnection operation of the contact group, a high-temperature arc is often generated due to the instantaneous cutting off of the current. This high-temperature arc not only causes the contact surface to melt or evaporate, but also causes thermal damage to the surrounding insulating materials. In severe cases, it may even cause the entire thermostat to burn out, greatly affecting the reliability and service life of the thermostat. Summary of the invention

[0004] In view of the above defects, the purpose of the present invention is to provide a temperature controller with magnetic blowing, which solves the problem that the magnetic blowing arc in the temperature controller cannot effectively extinguish the high-temperature arc and also causes damage to surrounding components.

[0005] To achieve this object, the present invention adopts the following technical solutions:

[0006] A temperature controller with magnetic blowing, comprising a shell, a temperature threshold adjustment mechanism, a power-off mechanism, a magnetic blowing mechanism and a power-on mechanism, wherein the power-on mechanism is provided with a contact group; the temperature threshold adjustment mechanism, the power-off mechanism and the power-on mechanism are all arranged in the shell, the preset temperature adjustment member of the temperature threshold adjustment mechanism extends to the outside of the shell, the input end and the output end of the power-on mechanism both extend to the outside of the shell, the temperature sensing part of the power-off mechanism extends to the outside of the shell and is arranged at the target temperature sensing part of the equipment where the temperature limiter is installed;

[0007] The temperature sensing part of the power-off mechanism is connected to the regulating part of the temperature threshold regulating mechanism, and the action end of the power-off mechanism is movably connected to the contact group; the power-off mechanism is used to disconnect the connection of the contact group when the sensed temperature exceeds the preset temperature;

[0008] The magnetic blowing mechanism is arranged on the periphery of the contact group, and the magnetic field magnetic flux lines generated by the magnetic blowing mechanism pass straight through the contact contact surface of the contact group and are parallel to the contact contact surface; the shell is provided with an arc absorbing portion in the vertical direction of the magnetic field magnetic flux lines, and the arc absorbing portion is located on the periphery of the contact group and encloses the contact group.

[0009] Further, the power-on mechanism includes an input contact, an output contact and a moving contact; the input contact, the output contact and the moving contact are all arranged at the front of the shell, the front of the input contact and the output contact are extended outside the shell, the rear of the input contact is connected to the right of the moving contact, the action end of the power-off mechanism is transmission-connected to the moving contact, and the left end of the moving contact is against or separated from the rear of the output contact;

[0010] The left end of the moving contact and the rear part of the output contact form the contact point group; when the left end of the moving contact and the rear part of the output contact abut against each other, the abutting surfaces of the left end of the moving contact and the rear part of the output contact are both the contact point contact surfaces;

[0011] The magnetic blowing mechanism is arranged on the left and right sides of the contact group, a magnetic field is formed between the left and right sides of the contact group, and the arc absorbing part is arranged on the front and rear sides of the contact group.

[0012] Furthermore, the magnetic blowing mechanism includes a magnetic blowing mounting piece and two magnets; the top of the shell is provided with receiving slot placement notches corresponding to the left and right sides of the rear part of the output contact, and the magnetic blowing mounting piece is provided with two receiving slots;

[0013] The magnetic blowing mounting piece is installed on the top of the shell, the two receiving grooves are respectively placed in the two receiving groove placement notches, and the two receiving grooves are respectively placed on the left and right sides of the rear part of the output contact, and the two magnets are respectively placed in the two receiving grooves.

[0014] Furthermore, the housing comprises an upper housing and a lower housing; the upper housing is provided with an adjustment hole corresponding to the preset temperature adjustment member, the arc absorbing portion is arranged in the front shell of the lower housing, and the receiving groove placement notch is arranged in the front of the upper housing;

[0015] The upper shell and the lower shell are snap-fitted to install the temperature threshold adjustment mechanism, the power-off mechanism and the power-on mechanism in the shell, the preset temperature adjustment member passes through the adjustment hole, the front end of the upper shell and the front end of the lower shell clamp and fix the input contact and the output contact, and the magnetic blow mounting member is installed on the top of the upper shell.

[0016] Further, the arc absorbing part includes a first arc absorbing member and a second arc absorbing member; an arc absorbing member fixing groove is provided in the shell of the lower shell corresponding to the rear side of the left end of the moving contact member, and the bottom end of the first arc absorbing member is fixed in the arc absorbing member fixing groove;

[0017] The front of the first arc-absorbing member encloses the rear side of the left end of the moving contact and the rear side of the output contact;

[0018] The front panel of the lower shell is replaced by the second arc-absorbing member, the front end of the lower shell is provided with an arc-absorbing member installation slide groove, and the second arc-absorbing member is inserted and installed at the front end of the lower shell along the arc-absorbing member installation slide groove;

[0019] The top end of the second arc-absorbing member abuts against the bottom surfaces of the input contact and the output contact, and the rear surface of the second arc-absorbing member surrounds the front side of the left end of the moving contact.

[0020] Furthermore, the power supply mechanism further includes an elastic stopper; the rear portion of the input contact, the right portion of the elastic stopper and the right portion of the moving contact are fixedly connected in sequence from top to bottom, and an elastic member is provided between the bottom surface of the left portion of the elastic stopper and the top surface of the right portion of the moving contact;

[0021] The action end of the power-off mechanism presses upward against the bottom surface of the elastic member corresponding to the right part of the movable contact; when the power-off mechanism senses that the temperature exceeds the preset temperature, the action end of the power-off mechanism moves downward;

[0022] The middle part of the movable contact piece is concave corresponding to the accommodating groove, and is provided with a hook piece which is movably buckled and connected with the left end of the elastic limiting piece.

[0023] Furthermore, the top of the first arc-absorbing member is set as a step structure, the step platform of the first arc-absorbing member is located below the left end of the moving contact, and the step back plate of the first arc-absorbing member is located on the rear side of the left end of the moving contact and the rear side of the output contact.

[0024] Furthermore, the first arc-absorbing member and the second arc-absorbing member are both made of ceramic materials; the input contact, the output contact and the moving contact are all made of non-magnetic conductive materials.

[0025] Furthermore, the power-off mechanism includes a temperature-sensing package, a temperature-sensing capillary and a pressure plate; the top surface of the temperature-sensing package is fixedly connected to the bottom of the adjusting part, the temperature-sensing capillary is connected to the inside of the temperature-sensing package, the other end of the temperature-sensing capillary extends outside the shell and is arranged at the target temperature-sensing part of the device installed with the temperature controller, the rear end of the pressure plate is fixedly connected to the top of the inner shell of the upper shell, the deformable bottom surface of the temperature-sensing package is located above the middle top surface of the pressure plate, the front end of the pressure plate bypasses the lower concave position in the middle of the moving contact, and presses upward against the bottom surface of the elastic member corresponding to the right part of the moving contact;

[0026] When the temperature sensed by the temperature-sensing capillary tube exceeds the preset temperature, the deformable bottom surface of the temperature-sensing package pushes the pressure plate to move downward.

[0027] Furthermore, the temperature threshold adjustment mechanism also includes a fixed bracket; the top of the fixed bracket is fixedly connected to the top of the upper shell, the top of the fixed bracket is sleeved on the outside of the bottom of the preset temperature adjustment member, the bottom bracket of the fixed bracket passes through the outside of the temperature sensing package and is connected to the bottom of the lower shell, the bottom of the preset temperature adjustment member is transmission-connected to the top of the adjustment part, and the bottom of the adjustment part is transmission-connected to the top of the temperature sensing package;

[0028] When the preset temperature is increased, the distance between the deformable bottom surface of the temperature-sensing bag and the middle top surface of the pressure plate increases; when the preset temperature is decreased, the distance between the deformable bottom surface of the temperature-sensing bag and the middle top surface of the pressure plate decreases.

[0029] The technical solution provided by the present invention may include the following beneficial effects: a temperature threshold adjustment mechanism, a power-off mechanism and a power-on mechanism are all arranged in a shell to form the main body of a temperature controller; a preset temperature adjustment member of the temperature threshold adjustment mechanism extends outside the shell for a user to operate and adjust the preset temperature; an input end and an output end of the power-on mechanism are both extended outside the shell and are respectively connected to conductive members of the electrical equipment, so as to install the temperature controller in series on a power-on circuit of the electrical equipment; a temperature sensing portion of the power-off mechanism extends outside the shell and is arranged at a target temperature sensing portion of the equipment where the temperature limiter is installed, so as to sense temperature changes at the target temperature sensing portion.

[0030] Inside the shell, the temperature sensing part of the power-off mechanism is connected to the adjusting part of the temperature threshold adjusting mechanism, so that the temperature threshold adjusting mechanism can adjust the triggering moment of the temperature sensing part of the power-off mechanism, thereby achieving the purpose of adjusting the preset temperature; the action end of the power-off mechanism and the contact group are movably connected, so that when the sensed temperature does not exceed the preset temperature, the action end of the power-off mechanism keeps the contacts of the contact group connected, and when the sensed temperature exceeds the preset temperature, the action end of the power-off mechanism disconnects the contacts of the contact group, thereby realizing overheating protection of the electrical equipment.

[0031] On this basis, the magnetic blowing mechanism is arranged on the periphery of the contact group, so that the magnetic field lines of flux generated by the magnetic blowing mechanism pass through the contact surface of the contact group in a straight line and are parallel to the contact surface. Therefore, when the contacts are disconnected, the direction of the high-temperature arc current generated is always perpendicular to the magnetic lines of flux, so that the arc drawing direction is also always perpendicular to the magnetic lines of flux, thereby realizing directional arc drawing. Therefore, the shell is provided with an arc absorbing portion in the vertical direction of the magnetic field lines of flux, and the arc absorbing portion is located on the periphery of the contact group and encloses the contact group, so as to absorb the high-temperature arc coming from the directional arc drawing, effectively extinguish the high-temperature arc, and avoid the arc drawing from causing damage to the surrounding components inside the shell. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 It is a structural schematic diagram of a temperature controller with magnetic blowing according to one embodiment of the present invention.

[0033] Figure 2 Yes Figure 1 The assembly of a temperature controller with magnetic blowout Figure 1 .

[0034] Figure 3 Yes Figure 1 The assembly of a temperature controller with magnetic blowout Figure 2 .

[0035] Figure 4 Yes Figure 1 A schematic diagram of the partial structure of a temperature controller with magnetic blowing is shown.

[0036] Among them: shell 1, temperature threshold adjustment mechanism 2, power-off mechanism 3, magnetic blowing mechanism 4, power-on mechanism 5, preset temperature adjustment member 21, adjustment part 22, contact group 51, contact contact surface 52, arc absorption part 11, input contact 53, output contact 54, moving contact 55, magnetic blowing mounting member 41, magnet 42, accommodating groove placement notch 12, accommodating groove 411, upper shell 13, lower shell 14, adjustment hole 131, first arc absorption member 111, second arc absorption member 112, arc absorption member fixing groove 141, arc absorption member installation slide groove 142, elastic limit member 56, elastic member 57, temperature sensing package 31, temperature sensing capillary 32, pressure plate 33, fixed bracket 23. DETAILED DESCRIPTION

[0037] Embodiments of the present invention are described in detail below, examples of which 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.

[0038] In the description of the present invention, it is necessary to understand that the terms "longitudinal", "transverse", "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 accompanying 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 addition, features defined as "first" or "second" may explicitly or implicitly include one or more of the features, and are used to distinguish and describe features, without distinction of order or importance.

[0039] In the description of the present invention, unless otherwise specified, "plurality" means two or more.

[0040] In the description of the embodiments of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" 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 directly connected or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the embodiments of the present invention can be understood according to specific circumstances.

[0041] Combine the following Figures 1 to 4 , describing a temperature controller with magnetic blowing according to an embodiment of the present invention.

[0042] A temperature controller with magnetic blowing, comprising a housing 1, a temperature threshold adjustment mechanism 2, a power-off mechanism 3, a magnetic blowing mechanism 4 and a power-on mechanism 5, wherein the power-on mechanism 5 is provided with a contact group 51; the temperature threshold adjustment mechanism 2, the power-off mechanism 3 and the power-on mechanism 5 are all arranged in the housing 1, the preset temperature adjustment member 21 of the temperature threshold adjustment mechanism 2 extends to the outside of the housing 1, the input end and the output end of the power-on mechanism 5 both extend to the outside of the housing 1, and the temperature sensing part of the power-off mechanism 3 extends to the outside of the housing 1 and is arranged at the target temperature sensing part of the equipment where the temperature limiter is installed;

[0043] The temperature sensing part of the power-off mechanism 3 is connected to the regulating part 22 of the temperature threshold regulating mechanism 2, and the action end of the power-off mechanism 3 is movably connected to the contact group 51; the power-off mechanism 3 is used to disconnect the contact group 2 when the sensed temperature exceeds the preset temperature;

[0044] The magnetic blowing mechanism 4 is arranged on the periphery of the contact group 51, and the magnetic field magnetic flux lines generated by the magnetic blowing mechanism 4 pass straight through the contact contact surface 52 of the contact group 51 and are parallel to the contact contact surface 52; the shell 1 is provided with an arc absorbing portion 11 in the vertical direction of the magnetic field magnetic flux lines, and the arc absorbing portion 11 is located on the periphery of the contact group 51 and encloses the contact group 51.

[0045] Specifically, the contact group of the thermostat is often surrounded by various components, such as the outer casing, temperature threshold adjustment mechanism, temperature sensing mechanism and fixing screws. The existence of these components limits the arcing space of the magnetic arc blowing, and since the arcing direction and arc extinction distance of the magnetic arc blowing are uncontrollable, the magnetic arc blowing may hit the surrounding components, causing the components to melt, resulting in various unpredictable consequences. For example, the temperature threshold adjustment mechanism is melted and cannot be adjusted, the thermostat will lose its precise temperature control ability, and then the thermostat will fail, and the thermostat installation equipment will be short-circuited or open-circuited.

[0046] Therefore, how to ensure that the magnetic arc blowing can effectively extinguish the high-temperature arc while avoiding the arc blowing from damaging the surrounding components has become a technical problem that needs to be solved urgently in the current temperature controller design.

[0047] The present invention proposes a preferred embodiment of a temperature controller with magnetic blowing, such as Figures 1 to 4 As shown, the temperature threshold adjustment mechanism 2, the power-off mechanism 3 and the power-on mechanism 5 are all arranged in the shell 1 to form the main body of the temperature controller; the preset temperature adjustment member 21 of the temperature threshold adjustment mechanism 2 extends to the outside of the shell 1, so that the user can operate to adjust the preset temperature; the input end and the output end of the power-on mechanism 5 are extended to the outside of the shell 1, and are respectively connected to the conductive parts (wires, electric sheets, etc.) of the electrical equipment, so as to install the thermostat in series on the power-on circuit of the electrical equipment; the temperature sensing part of the power-off mechanism 3 extends to the outside of the shell 1, and is arranged at the target temperature sensing part of the equipment where the temperature limiter is installed, so as to sense the temperature change of the target temperature sensing part.

[0048] Inside the shell 1, the temperature sensing part of the power-off mechanism 3 is connected to the adjustment part 22 of the temperature threshold adjustment mechanism 2, so that the temperature threshold adjustment mechanism 2 can adjust the triggering moment of the temperature sensing part of the power-off mechanism 3 to achieve the purpose of adjusting the preset temperature; the action end of the power-off mechanism 3 and the contact group 51 are movably connected, that is, when the sensed temperature does not exceed the preset temperature, the action end of the power-off mechanism 3 keeps the contacts of the contact group 51 connected, and when the sensed temperature exceeds the preset temperature, the action end of the power-off mechanism 3 disconnects the contacts of the contact group 51, thereby realizing overheating protection of the electrical equipment.

[0049] On this basis, the magnetic blowing mechanism 4 is arranged on the periphery of the contact group 51 so that the magnetic field magnetic flux lines generated by the magnetic blowing mechanism 4 are straight (such as Figure 4 The contact contact surface 52 (shown as the large-spaced dashed line) of the contact group 51 passes through the contact contact surface 52 (as shown in FIG. Figure 4 ), and is parallel to the contact surface 52 of the contact, so that when the contact is disconnected, the direction of the high-temperature arc current generated is always perpendicular to the magnetic flux lines (because the arc is generated from one contact to another contact), so that the arc drawing direction is always perpendicular to the magnetic flux lines (derived from the direction of the Lorentz force determined by the left-hand rule), and directional arc drawing is achieved; therefore, the housing 1 is provided with an arc absorbing portion 11 in the vertical direction of the magnetic flux lines, and the arc absorbing portion 11 is located on the periphery of the contact group 51 and encloses the contact group 51 (that is, as shown in FIG. Figure 4 The upper, lower, front and rear peripheries of the contact group 51 shown in the figure can absorb the high-temperature arc coming from the directional arc, effectively extinguish the high-temperature arc, and prevent the arc from damaging the surrounding components inside the shell 1.

[0050] Furthermore, the power-on mechanism 5 includes an input contact 53, an output contact 54 and a moving contact 55; the input contact 53, the output contact 54 and the moving contact 55 are all arranged at the front of the housing 1, the front of the input contact 53 and the output contact 54 are extended outside the housing 1, the rear of the input contact 53 is connected to the right of the moving contact 55, the action end of the power-off mechanism 3 is transmission-connected to the moving contact 55, and the left end of the moving contact 55 is abutted against or separated from the rear of the output contact 54;

[0051] The left end of the movable contact 55 and the rear of the output contact 54 form a contact group 51; when the left end of the movable contact 55 and the rear of the output contact 54 abut against each other, the abutting surfaces of the left end of the movable contact 55 and the rear of the output contact 54 are both contact contact surfaces 52;

[0052] The magnetic blowing mechanism 4 is disposed on the left and right sides of the contact group 51 to form a magnetic field between the left and right sides of the contact group 51 , and the arc absorbing portion 11 is disposed on the front and rear sides of the contact group 51 .

[0053] In this embodiment, based on the fact that both the input and output ends of the power-on mechanism 5 need to extend outside the shell 1, in order to reduce the power-on path, the power-on mechanism 5 of the temperature controller is composed of an input contact 53, an output contact 54 and a moving contact 55, and all are arranged at the front of the shell 1, wherein the front parts of the input contact 53 and the output contact 54 extend outside the shell 1, and are used to install the thermostat in series on the power-on circuit of the electrical equipment, the rear part of the input contact 53 and the right part of the moving contact 55 are connected, and the action end of the power-off mechanism 3 and the moving contact 55 are transmission-connected, so that through the mutual transmission between the action end of the power-off mechanism 3 and the moving contact 55, the left end of the moving contact 55 and the rear part of the output contact 54 are driven to separate when the contact group 51 is disconnected, and to offset each other when the contact group 51 is connected.

[0054] Based on the structure of the above-mentioned power-on mechanism 5, when the left end of the moving contact 55 and the rear of the output contact 54 abut against each other, the abutting surfaces of the left end of the moving contact 55 and the rear of the output contact 54 are both contact contact surfaces 52. At this time, if they are separated, an arc will be generated from the left end of the moving contact 55 to the rear of the output contact 54, or from the rear of the output contact 54 to the left end of the moving contact 55; based on this, the magnetic blowing mechanism 4 is arranged on the left and right sides of the contact group 51, and a magnetic field is formed between the left and right sides of the contact group 51, so that the magnetic flux lines of the magnetic field can be made parallel to the contact contact surface 52. Based on the arc flow direction being upward or downward, the arc drawing direction can only be forward or backward (derived from the direction of the Lorentz force determined by the left-hand rule). Therefore, the arc absorbing portion 11 is arranged on the front and rear sides of the contact group 51, which can absorb the high-temperature arc drawn in a directional manner, effectively extinguish the high-temperature arc, and avoid the arc drawing from damaging the surrounding components inside the shell 1.

[0055] Furthermore, the magnetic blowing mechanism 4 includes a magnetic blowing mounting member 41 and two magnets 42; the top of the housing 1 is provided with receiving slot placement notches 12 on the left and right sides corresponding to the rear of the output contact 54, and the magnetic blowing mounting member 41 is provided with two receiving slots 411;

[0056] The magnetic blowing mounting member 41 is installed on the top of the shell 1, and the two receiving grooves 411 are respectively placed in the two receiving groove placement notches 12, and the two receiving grooves 411 are respectively placed on the left and right sides of the rear of the output contact 54, and the two magnets 42 are respectively placed in the two receiving grooves 411.

[0057] In this embodiment, in order to form a magnetic field with horizontal straight magnetic flux lines between the left and right sides of the contact group 51 (i.e., parallel to the contact surface 52), the magnetic blowing mechanism 4 is provided with receiving groove placement notches 12 on the top of the shell 1 corresponding to the left and right sides of the rear of the output contact 54, and two receiving grooves 411 are provided in the magnetic blowing mounting member 41 for placing the magnets 42. Then, the magnetic blowing mounting member 41 with the magnets 42 placed is installed on the top of the shell 1, and the two receiving grooves 411 are respectively placed in the two receiving groove placement notches 12, so that the two receiving grooves 411 are respectively placed on the left and right sides of the rear of the output contact 54, and the magnets 42 placed in the two receiving grooves 411 attract each other, thereby forming a magnetic field with horizontal straight magnetic flux lines between the left and right sides of the contact group 51.

[0058] Furthermore, the housing 1 includes an upper housing 13 and a lower housing 14; the upper housing 13 is provided with an adjustment hole 131 corresponding to the preset temperature adjustment member 21, the arc absorbing portion 11 is arranged in the front shell of the lower housing 14, and the receiving groove placement notch 12 is arranged in the front of the upper housing 13;

[0059] The upper shell 13 and the lower shell 14 are snap-fitted to install the temperature threshold adjustment mechanism 2, the power-off mechanism 3 and the power-on mechanism 5 in the shell, the preset temperature adjustment component 21 passes through the adjustment hole 131, the front end of the upper shell 13 and the front end of the lower shell 14 clamp and fix the input contact 53 and the output contact 54, and the magnetic blow mounting component 41 is installed on the top of the upper shell 13.

[0060] In this embodiment, in order to facilitate the installation of internal components of the temperature controller, the shell 1 is composed of an upper shell 13 and a lower shell 14, wherein the upper shell 13 has an adjustment hole 131 corresponding to the preset temperature adjustment member 21, the accommodating groove placement notch 12 is arranged at the front of the upper shell 13, and the arc absorption portion 11 is arranged in the front shell of the lower shell 14, so that when the upper shell 13 and the lower shell 14 are buckled to install the temperature threshold adjustment mechanism 2, the power-off mechanism 3 and the power-on mechanism 5 in the shell, the preset temperature adjustment member 21 can extend to the outside of the shell 1 through the adjustment hole 131, the front end of the upper shell 13 and the front end of the lower shell 14 can clamp and fix the input contact 53 and the output contact 54, the arc absorption portion 11 can be arranged from bottom to top on the front and rear sides of the contact group 51, and after the magnetic blowing mounting member 41 is installed on the top of the upper shell 13, the accommodating groove 411 can be arranged from top to bottom on the left and right sides of the contact group 51 through the accommodating groove placement notch 12.

[0061] Furthermore, the arc absorbing part 11 includes a first arc absorbing member 111 and a second arc absorbing member 112; an arc absorbing member fixing groove 141 is provided at the rear side of the left end of the movable contact member 55 in the shell of the lower shell 14, and the bottom end of the first arc absorbing member 111 is fixed in the arc absorbing member fixing groove 141;

[0062] The front of the first arc-absorbing member 111 encloses the rear side of the left end of the moving contact 55 and the rear side of the output contact 54;

[0063] The front panel of the lower housing 14 is replaced by the second arc-absorbing member 112. The front end of the lower housing 14 is provided with an arc-absorbing member installation slide groove 142. The second arc-absorbing member 112 is inserted and installed at the front end of the lower housing 14 along the arc-absorbing member installation slide groove 142.

[0064] The top end of the second arc-absorbing member 112 abuts against the bottom surfaces of the input contact 53 and the output contact 54 , and the rear surface of the second arc-absorbing member 112 encloses the front side of the left end of the moving contact 55 .

[0065] In this embodiment, considering that arc absorption is required at the front and rear sides of the contact group 51 and it needs to be installed in the lower shell 14, the arc absorption part 11 is selected to be composed of a first arc absorption member 111 and a second arc absorption member 112, wherein an arc absorption member fixing groove 141 is provided in the shell of the lower shell 14 corresponding to the rear side of the left end of the moving contact 55, and the bottom end of the first arc absorption member 111 is fixed in the arc absorption member fixing groove 141. When the upper shell 13 and the lower shell 14 are buckled and installed, the front of the first arc absorption member 111 can enclose the rear side of the left end of the moving contact 55 and the rear side of the output contact 54, so as to realize The rear side of the contact group 51 is now enclosed; the front panel of the lower shell 14 is replaced by the second arc-absorbing component 112, and an arc-absorbing component mounting groove 142 is provided at the front end of the lower shell 14. The second arc-absorbing component 112 is inserted and installed at the front end of the lower shell 14 along the arc-absorbing component mounting groove 142. When the upper shell 13 and the lower shell 14 are snap-fitted and installed, the top end of the second arc-absorbing component 112 can be made to abut against the bottom surfaces of the input contact 53 and the output contact 54, and the back of the second arc-absorbing component 112 can enclose the front side of the left end of the moving contact 55, thereby enclosing the front side of the contact group 51.

[0066] More importantly, based on the installation structure of the first arc-absorbing member 111 and the second arc-absorbing member 112, when the first arc-absorbing member 111 and the second arc-absorbing member 112 are damaged after multiple arc-absorbing operations, they are easier to disassemble and replace.

[0067] Furthermore, the power supply mechanism 5 further includes an elastic stopper 56; the rear portion of the input contact 53, the right portion of the elastic stopper 56 and the right portion of the movable contact 55 are fixedly connected in sequence from top to bottom, and an elastic member 57 is provided between the bottom surface of the left portion of the elastic stopper 56 and the top surface of the right portion of the movable contact 55;

[0068] The action end of the power-off mechanism 3 presses upward against the bottom surface of the elastic member 57 corresponding to the right part of the moving contact 55; when the power-off mechanism 3 senses that the temperature exceeds the preset temperature, the action end of the power-off mechanism 3 moves downward;

[0069] The middle part of the movable contact member 55 is concave corresponding to the receiving groove 411 and is provided with a hook member and the left end of the elastic limiting member 56 for movable buckling connection.

[0070] In this embodiment, in order to enable the power-on mechanism 5 to cooperate more simply with the power-off mechanism 3 and reduce the structural complexity of the power-off mechanism 3, the power-on mechanism 5 also includes an elastic limiter 56, which fixes and connects the rear part of the input contact 53, the right part of the elastic limiter 56 and the right part of the moving contact 55 in sequence from top to bottom, and an elastic member 57 (such as a spring) is provided between the bottom surface of the left part of the elastic limiter 56 and the top surface of the right part of the moving contact 55, and the action end of the power-off mechanism 3 presses upward against the bottom surface of the elastic member 57 corresponding to the right part of the moving contact 55, so that the left part of the moving contact 55 and the rear part of the output contact 54 are pressed against each other, and the contact group 51 remains connected; when the power-off mechanism 3 senses that the temperature exceeds the preset temperature, the action end of the power-off mechanism 3 moves downward, and the left part of the moving contact 55 and the rear part of the output contact 54 are separated, and the contact group 51 is disconnected, so that the control logic of the power-off mechanism 3 is simple.

[0071] On this basis, in order to enable the accommodating groove 411 to be set on the left side of the moving contact 55 and the right side of the rear part of the output contact 54, the middle part of the moving contact 55 is recessed corresponding to the accommodating groove 411; and because the moving contact 55 has been bent and has poor stability, a hook and an elastic limit member 56 are provided in the middle part of the moving contact 55, and the left end of the hook and the elastic limit member 56 are movably fastened and connected, so that the moving contact 55 can be pushed upward by the power-off mechanism 3 while preventing the moving contact 55 from moving downward excessively when it is reset under the action of the elastic member 57.

[0072] Furthermore, the top of the first arc-absorbing member 111 is set as a step structure, the step platform of the first arc-absorbing member 111 is located below the left end of the moving contact 55, and the step back plate of the first arc-absorbing member 111 is located on the rear side of the left end of the moving contact 55 and the rear side of the output contact 54.

[0073] In the present embodiment, in order to prevent the left end of the moving contact 55 from moving downward too much (such as the moving contact 55 moves downward under the action of the elastic member 57) when the left end of the moving contact 55 and the rear part of the output contact 54 are separated under the transmission of the power-off mechanism 3, resulting in the subsequent inability to reset, the top of the first arc-absorbing member 111 is set to a step structure, and the step platform of the first arc-absorbing member 111 is located below the left end of the moving contact 55 to limit the left end of the moving contact 55 from moving downward, and the step back plate of the first arc-absorbing member 111 is located on the rear side of the left end of the moving contact 55 and the rear side of the output contact 54, and is used for arc absorption on the rear side of the contact group 51.

[0074] Furthermore, the first arc-absorbing member 111 and the second arc-absorbing member 112 are both made of ceramic materials; the input contact 53, the output contact 54 and the moving contact 55 are all made of non-magnetic conductive materials.

[0075] In this embodiment, based on the excellent insulation and high temperature resistance of ceramic materials, the first arc-absorbing member 111 and the second arc-absorbing member 112 are both made of ceramic materials and are not easily damaged by electric arcs, thereby greatly extending their service life.

[0076] Because the input contact 53, the output contact 54 and the moving contact 55 are all covered by the magnetic field, in order to avoid being attracted by the magnetic field and causing malfunction, the input contact 53, the output contact 54 and the moving contact 55 are preferably made of non-magnetic conductive materials, such as copper, and alloys of copper and non-magnetic or weakly magnetic metals.

[0077] Furthermore, the power-off mechanism 3 includes a temperature-sensing package 31, a temperature-sensing capillary 32 and a pressure plate 33; the top surface of the temperature-sensing package 31 is fixedly connected to the bottom of the adjusting portion 22, the temperature-sensing capillary 32 is connected to the inside of the temperature-sensing package 31, the other end of the temperature-sensing capillary 32 extends out of the housing 1 and is arranged at the target temperature-sensing position of the device where the thermostat is installed, the rear end of the pressure plate 33 is fixedly connected to the inner shell top of the upper housing 13, the deformable bottom surface of the temperature-sensing package 31 is located above the middle top surface of the pressure plate 33, the front end of the pressure plate 33 bypasses the middle lower concave position of the moving contact 55, and presses upward against the bottom surface of the elastic member 57 corresponding to the right part of the moving contact 55;

[0078] When the temperature sensed by the temperature-sensing capillary tube 32 exceeds a preset temperature, the deformable bottom surface of the temperature-sensing package 31 pushes the pressure plate 33 to move downward.

[0079] In this embodiment, the action mechanism of the power-off mechanism 3 is as follows: when the temperature-sensing capillary 32 senses that the temperature of the target temperature-sensing part exceeds the preset temperature, the temperature-sensing medium in the temperature-sensing bag 31 expands, causing the deformable bottom surface of the temperature-sensing bag 31 to bulge downward, thereby pushing the pressure plate 33 to move downward, causing the front part of the pressure plate 33 to release the right part of the moving contact 55, and the right part of the moving contact 55 moves downward under the action of the elastic member 57, and then the left part of the moving contact 55 and the rear part of the output contact 54 are separated, and the power is cut off to achieve overheating protection.

[0080] Furthermore, the temperature threshold adjustment mechanism 2 also includes a fixed bracket 23; the top of the fixed bracket 23 is fixedly connected to the top of the upper shell 13, the top of the fixed bracket 23 is sleeved on the outside of the bottom of the preset temperature adjustment member 21, the bottom bracket of the fixed bracket 23 passes through the outside of the temperature sensing package 31, and is connected to the bottom of the lower shell 14, the bottom of the preset temperature adjustment member 21 is transmission-connected to the top of the adjustment part 22, and the bottom of the adjustment part 22 is transmission-connected to the top of the temperature sensing package 31;

[0081] When the preset temperature is adjusted to a higher value, the distance between the deformable bottom surface of the temperature-sensing package 31 and the middle top surface of the pressure plate 33 increases; when the preset temperature is adjusted to a lower value, the distance between the deformable bottom surface of the temperature-sensing package 31 and the middle top surface of the pressure plate 33 decreases.

[0082] In this embodiment, the fixed bracket 23 enables the preset temperature adjustment member 21, the adjustment part 22 and the temperature-sensing package 31 to be arranged above the pressure plate 33, so that under the transmission of the preset temperature adjustment member 21, the adjustment part 22 can drive the temperature-sensing package 31 to move up and down, and freely adjust the distance between the deformable bottom surface of the temperature-sensing package 31 and the middle top surface of the pressure plate 33, so as to achieve the preset temperature adjustment. Specifically, the lower part of the preset temperature adjustment member 21 is a threaded rod, the adjustment part 22 is provided with a threaded channel, and the top of the temperature-sensing package 31 is provided with a threaded interface. The threaded rod passes through the threaded channel and is connected to the threaded interface to achieve the function of adjusting the distance between the deformable bottom surface of the temperature-sensing package 31 and the middle top surface of the pressure plate 33.

[0083] It should be noted that a small distance between the deformable bottom surface of the temperature-sensing bag 31 and the middle top surface of the pressure plate 33 means that a relatively low temperature can cause the temperature-sensing bag 31 to expand slightly to achieve power off, while a large distance means that a relatively high temperature is required to cause the temperature-sensing bag 31 to expand to push the pressure plate 33 downward to achieve power off.

[0084] Other structures and operations of a temperature controller with magnetic blowing according to an embodiment of the present invention are known to those skilled in the art and will not be described in detail here.

[0085] In the description of this specification, the description with reference to the terms "embodiment", "example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0086] 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 claims and their equivalents.

Claims

1. A temperature controller with magnetic blowing, characterized in that: It comprises a shell, a temperature threshold adjustment mechanism, a power-off mechanism, a magnetic blowing mechanism and a power-on mechanism, wherein the power-on mechanism is provided with a contact group; the temperature threshold adjustment mechanism, the power-off mechanism and the power-on mechanism are all arranged in the shell, the preset temperature adjustment member of the temperature threshold adjustment mechanism extends to the outside of the shell, the input end and the output end of the power-on mechanism both extend to the outside of the shell, the temperature sensing part of the power-off mechanism extends to the outside of the shell and is arranged at the target temperature sensing part of the equipment where the temperature limiter is installed; The temperature sensing part of the power-off mechanism is connected to the regulating part of the temperature threshold regulating mechanism, and the action end of the power-off mechanism is movably connected to the contact group; the power-off mechanism is used to disconnect the connection of the contact group when the sensed temperature exceeds the preset temperature; The magnetic blowing mechanism is arranged at the periphery of the contact group, and the magnetic field lines of flux generated by the magnetic blowing mechanism pass through the contact contact surface of the contact group in a straight line and are parallel to the contact contact surface; the shell is provided with an arc absorbing portion in a vertical direction of the magnetic field lines of flux, and the arc absorbing portion is located at the periphery of the contact group and encloses the contact group; The energizing mechanism comprises an input contact, an output contact and a moving contact; the input contact, the output contact and the moving contact are all arranged at the front of the housing, and the front of the input contact and the output contact extend outside the housing; The magnetic blowing mechanism includes a magnetic blowing mounting piece and two magnets; the top of the shell is provided with receiving slot placement notches on the left and right sides corresponding to the rear of the output contact, and the magnetic blowing mounting piece is provided with two receiving slots; The magnetic blow mounting member is installed on the top of the housing, the two receiving slots are respectively placed in the two receiving slot placement notches, and the two receiving slots are respectively placed on the left and right sides of the rear part of the output contact, and the two magnets are respectively placed in the two receiving slots; The housing comprises an upper housing and a lower housing; the arc absorbing part comprises a first arc absorbing member and a second arc absorbing member; an arc absorbing member fixing groove is provided in the lower housing at the rear side corresponding to the left end of the moving contact member, and the bottom end of the first arc absorbing member is fixed in the arc absorbing member fixing groove; The front of the first arc-absorbing member encloses the rear side of the left end of the moving contact and the rear side of the output contact; The front panel of the lower shell is replaced by the second arc-absorbing member, the front end of the lower shell is provided with an arc-absorbing member installation slide groove, and the second arc-absorbing member is inserted and installed at the front end of the lower shell along the arc-absorbing member installation slide groove; The top end of the second arc-absorbing member abuts against the bottom surfaces of the input contact and the output contact, and the rear surface of the second arc-absorbing member surrounds the front side of the left end of the moving contact.

2. A temperature controller with magnetic blowing according to claim 1, characterized in that: The rear part of the input contact is connected to the right part of the moving contact, the action end of the power-off mechanism is in transmission connection with the moving contact, and the left end of the moving contact is against or separated from the rear part of the output contact; The left end of the moving contact and the rear part of the output contact form the contact point group; when the left end of the moving contact and the rear part of the output contact abut against each other, the abutting surfaces of the left end of the moving contact and the rear part of the output contact are both the contact point contact surfaces; The magnetic blowing mechanism is arranged on the left and right sides of the contact group, a magnetic field is formed between the left and right sides of the contact group, and the arc absorbing part is arranged on the front and rear sides of the contact group.

3. A temperature controller with magnetic blowing according to claim 1, characterized in that: The upper shell is provided with an adjustment hole corresponding to the preset temperature adjustment member, the arc absorbing portion is arranged in the front shell of the lower shell, and the receiving groove placement notch is arranged in the front of the upper shell; The upper shell and the lower shell are snap-fitted to install the temperature threshold adjustment mechanism, the power-off mechanism and the power-on mechanism in the shell, the preset temperature adjustment member passes through the adjustment hole, the front end of the upper shell and the front end of the lower shell clamp and fix the input contact and the output contact, and the magnetic blow mounting member is installed on the top of the upper shell.

4. A temperature controller with magnetic blowing according to claim 3, characterized in that: The power supply mechanism also includes an elastic limiter; the rear portion of the input contact, the right portion of the elastic limiter and the right portion of the moving contact are fixedly connected in sequence from top to bottom, and an elastic member is provided between the bottom surface of the left portion of the elastic limiter and the top surface of the right portion of the moving contact; The action end of the power-off mechanism presses upward against the bottom surface of the elastic member corresponding to the right part of the movable contact; when the power-off mechanism senses that the temperature exceeds the preset temperature, the action end of the power-off mechanism moves downward; The middle part of the movable contact piece is concave corresponding to the accommodating groove, and is provided with a hook piece which is movably buckled and connected with the left end of the elastic limiting piece.

5. A temperature controller with magnetic blowing according to claim 1, characterized in that: The top of the first arc-absorbing member is set as a step structure, the step platform of the first arc-absorbing member is located below the left end of the moving contact, and the step back plate of the first arc-absorbing member is located at the rear side of the left end of the moving contact and the rear side of the output contact.

6. A temperature controller with magnetic blowing according to claim 1, characterized in that: The first arc-absorbing member and the second arc-absorbing member are both made of ceramic material; the input contact, the output contact and the moving contact are all made of non-magnetic conductive material.

7. A temperature controller with magnetic blowing according to claim 4, characterized in that: The power-off mechanism includes a temperature-sensing package, a temperature-sensing capillary and a pressure plate; the top surface of the temperature-sensing package is fixedly connected to the bottom of the adjusting part, one end of the temperature-sensing capillary is connected to the inside of the temperature-sensing package, the other end of the temperature-sensing capillary extends out of the shell and is arranged at the target temperature-sensing position of the device on which the temperature controller is installed, the rear end of the pressure plate is fixedly connected to the top of the inner shell of the upper shell, the deformable bottom surface of the temperature-sensing package is located above the middle top surface of the pressure plate, the front end of the pressure plate bypasses the middle lower concave position of the moving contact, and presses upward against the bottom surface of the elastic member corresponding to the right part of the moving contact; When the temperature sensed by the temperature-sensing capillary tube exceeds the preset temperature, the deformable bottom surface of the temperature-sensing package pushes the pressure plate to move downward.

8. A temperature controller with magnetic blowing according to claim 7, characterized in that: The temperature threshold adjustment mechanism also includes a fixed bracket; the top of the fixed bracket is fixedly connected to the top of the upper shell, the top of the fixed bracket is sleeved on the outside of the bottom of the preset temperature adjustment member, the bottom bracket of the fixed bracket passes through the outside of the temperature sensing package and is connected to the bottom of the lower shell, the bottom of the preset temperature adjustment member is transmission-connected to the top of the adjustment part, and the bottom of the adjustment part is transmission-connected to the top of the temperature sensing package; When the preset temperature is increased, the distance between the deformable bottom surface of the temperature-sensing bag and the middle top surface of the pressure plate increases; when the preset temperature is decreased, the distance between the deformable bottom surface of the temperature-sensing bag and the middle top surface of the pressure plate decreases.

Images