Temperature controller

Abstract

The utility model relates to the technical field of temperature control, in particular to a temperature controller. A temperature controller comprises a shell, the inner end of the shell is hollow, a base is clamped into the shell, a metal sheet and a diaphragm are sequentially installed in the space between the upper end of the base and the inner end of the shell from top to bottom, terminals are clamped into the four corners of the lower end of the base, a reed capable of being riveted is placed on the terminals, and the upper end of the reed makes contact with a push rod. The top end of the push rod makes contact with the lower edge of the diaphragm, and a cover plate for blocking is arranged at the lower end of the base. A metal sheet and a diaphragm are sequentially installed between the upper end of the base and an inner cavity of a shell from top to bottom, terminals are clamped into the four corners of the lower end of the base, a reed capable of being riveted is placed on each terminal, the upper ends of the reeds make contact with a push rod, the top end of the push rod abuts against the lower edge of the diaphragm, and the bottom of the base is blocked through a cover plate. And an integrated structure in which the metal sheet thermally deforms to drive the push rod and the push rod is linked with the reed to control the on-off of the contact is formed.

Description

TECHNICAL FIELD

[0001] The utility model relates to temperature control technical field especially a temperature controller. BACKGROUND

[0002] The structure design of traditional temperature controller has significant defects, mainly embodied in low installation efficiency, poor reed stability and insufficient contact control precision. In early scheme, the abutment efficiency between the terminal and the reed is poor, and the contact is prone to break, and at the same time, the reed is deformed by heat in the use process, and the use stability is poor, the fixing mode of screw or rivet between the terminal and the base is adopted in the existing market, and the labor cost is high.

[0003] In view of the above defects, the designer actively researches and innovates, in order to create a temperature controller, so that it has more industrial utilization value. INVENTION CONTENTS

[0004] To solve the above technical problems, the purpose of the utility model is to provide a temperature controller.

[0005] The utility model relates to a temperature controller, including the shell, the inside end of shell is hollow, the shell is clamped into the base, the upper end of base and the inside end space of shell are installed with metal sheet and diaphragm from top to bottom in proper order, the lower end of base is clamped into the terminal in four corners, the terminal is equipped with the reed that can rivet, the upper end of reed is in contact with push rod, the top end of push rod is in contact with the lower edge of diaphragm, the lower end of base has the cover plate for plugging.

[0006] The temperature controller is hollow and clamped into the base, the metal sheet and the diaphragm are installed between the upper end of the base and the inner cavity of the shell from top to bottom, the terminals are clamped into the base at four corners, the reeds that can be riveted are placed on each terminal, the upper end of the reed is in contact with the push rod, the top end of the push rod is in contact with the lower edge of the diaphragm, the bottom of the base is plugged by the cover plate, forming an integrated structure driven by the diaphragm thermal deformation, the push rod and the reed are linked to control the on-off of the contact.

[0007] Further, the inner cavity of the base has a step for supporting the diaphragm, the middle part of the base has a through hole for the upper end of the push rod to pass through, and the two ends of the base have clamping grooves for the tail ends of the terminals to insert.

[0008] The inner cavity of the base is provided with a step for supporting the diaphragm, a through hole is formed in the middle part for the upper end of the push rod to pass through, and clamping grooves are formed at both ends for the tail ends of the terminals to insert, the step forms a limiting support for the diaphragm, the through hole guides the axial movement of the push rod, and the clamping grooves fix the tail ends of the terminals, realizing the integrated positioning function of the base for the diaphragm, the push rod and the terminals.

[0009] Further, the bottom of the base has an inner recessed mounting groove, and the cover plate has mounting blocks clamped and mounted at both ends.

[0010] The base bottom is provided with an inner recessed mounting groove, the cover plate extends out mounting blocks matched with the mounting groove, the mounting blocks are embedded into the mounting groove of the base bottom to realize quick clamping and fixing of the cover plate, to form sealing plugging of the lower end of the base, and to ensure stable contact relationship of the reed and the terminal under the limitation of the cover plate.

[0011] Further, the two terminals on the same side are a group, one of the terminals has a plurality of protruding limiting columns below, the limiting columns are matched with the limiting holes on one side of the reed, the other terminal has a static contact fixed on the upper end, the through hole on the other side of the reed is fixedly connected with the movable contact, and the initial state of the static contact and the movable contact is in contact.

[0012] The two terminals on the same side are a group, one of the terminals has a plurality of protruding limiting columns below, the limiting columns are matched with the limiting holes on one side of the reed, the other terminal has a static contact fixed on the upper end, the through hole on the other side of the reed is fixedly connected with the movable contact, and the initial state of the static contact and the movable contact is in contact.

[0013] Further, the middle part of the push rod has an outward protruding stop block, and the upper surface of the reed has an upward protruding arc-shaped contact block, and the arc-shaped contact block is in contact with the lower edge of the stop block.

[0014] The middle part of the push rod has an outward protruding stop block, and the upper surface of the reed has an upward protruding arc-shaped contact block, and the arc-shaped contact block is in contact with the lower edge of the stop block.

[0015] Further, there is a gap between the initial state of the reed and the cover plate.

[0016] The initial state of the reed and the cover plate is kept apart, so that the reed has sufficient moving space when being pushed by the push rod, and the lower end of the reed is limited by the cover plate through the clamping cooperation of the mounting block and the mounting groove of the base, so that the movable contact and the static contact are accurately separated or contacted under the driving of the reed deformation, and the reliable action of the contact of the temperature controller and the circuit on-off control are realized.

[0017] Further, the two sides of the shell have outwardly extending mounting plates, and the mounting plates have through holes for fixing.

[0018] The two sides of the shell are provided with outwardly extending mounting plates, and the mounting plates are distributed with through holes for fixing, so that the shell can be stably installed to a specified position through the through holes penetrated by bolts or screws, and the overall structure of the temperature controller is stable.

[0019] By the above scheme, the application has at least the following advantages: the mounting plates extending outwardly from both sides of the shell and the through holes thereof, combined with bolt or screw fixation, ensure stable installation of the temperature controller and facilitate disassembly and maintenance; the initial gap structure between the reed and the cover plate not only retains the movement space of the reed, but also realizes limiting protection through the clamping cooperation of the mounting block and the base, avoiding action interference; the precise cooperation of the push rod stop block and the reed arc-shaped contact block drives the movable contact and the static contact to respond quickly, improving the reliability and sensitivity of on-off control; the compact overall structure significantly enhances the vibration resistance, impact resistance and environmental adaptability of the coordinated action of various components, while reducing processing and maintenance costs and prolonging the service life.

[0020] Meanwhile, the connection between the reed and the terminal adopts a three-group convex riveting connection mode, which greatly increases the reliability of the connection between the reed and the movable contact piece, reduces heating caused by unreliable riveting of parts during product use, and makes product use more stable.

[0021] The terminal is directly riveted and fixed on the base, and the terminal installation is limited in the base, increasing the plugging torque after riveting of the terminal. Compared with the existing market fixing mode using screws or rivets, the application reduces labor cost and reduces material cost.

[0022] The above description is only a summary of the technical scheme of the application, in order to more clearly understand the technical means of the application, and the content of the specification can be implemented, the following will be described in detail with the preferred embodiment of the application and the accompanying drawings. BRIEF DESCRIPTION OF DRAWINGS

[0023] In order to more clearly illustrate the technical scheme of the embodiments of the application, the following will briefly introduce the drawings needed to be used in the embodiments, it should be understood that the following drawings only show one embodiment of the application, therefore should not be regarded as a limitation, for those skilled in the art, without creative labor, other related drawings can also be obtained from these drawings.

[0024] Figure 1 is a structural schematic diagram of the application;

[0025] Figure 2 is an explosion schematic diagram of the application Figure 1 ;

[0026] Figure 3 is an explosion schematic diagram of the application Figure 2 ;

[0027] Figure 4 is a base structure schematic diagram of the application;

[0028] Figure 5 is aFigure 4 Another perspective illustration;

[0029] Figure 6 This is a schematic diagram of the assembly of the terminal, spring, and push rod of this utility model;

[0030] Figure 7 This is a schematic diagram of the terminal structure of this utility model;

[0031] Figure 8 This is a schematic diagram of the reed structure of this utility model;

[0032] In the diagram: 1. Outer shell, 2. Base, 3. Metal sheet, 4. Diaphragm, 5. Terminal, 6. Spring, 7. Push rod, 8. Cover plate, 9. Step, 10. Slot, 11. Mounting block, 12. Limiting post, 13. Stationary contact, 14. Moving contact, 15. Stop block, 16. Arc-shaped contact block. Detailed Implementation

[0033] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate this utility model, but are not intended to limit its scope.

[0034] See Figures 1-3 This thermostat adopts a modular structure design. The outer shell 1 is embedded with a base 2. The upper end of the base 2 is equipped with a metal sheet 3 and a diaphragm 4. The four corners of the lower end are connected to the terminals 5 by snap-fit ​​and are engaged with riveted springs 6. The push rod 7 links the diaphragm 4 and the springs 6 to realize the contact action control. The components are connected by snap-fit ​​and layered installation to realize quick assembly and maintenance. The riveted design of the springs 6 and terminals 5 facilitates replacement and maintenance. The linkage structure of the push rod 7 and the diaphragm 4 ensures sensitive transmission of temperature changes and accurate on / off switching. The closed layout of the cover plate 8 and the base 2 effectively protects the internal components. The overall structure is compact, highly reliable and highly adaptable to the environment.

[0035] When the metal sheet 3 is heated, it jumps, causing the diaphragm 4 to flip. The diaphragm 4 then pushes the push rod 7 to move, disengaging the spring 6 from the terminal 5, thus disconnecting the switch. After cooling, the push rod 7 can be manually pressed to reset the thermostat switch.

[0036] See Figures 2-5The base 2 adopts an integrated functional structure design. Its inner cavity has a step 9 to support the edge of the diaphragm 4, ensuring uniform force and stable movement when the diaphragm deforms due to heat. The through hole in the middle provides a precise guide channel for the upper end of the push rod 7, avoiding offset friction and ensuring the sensitivity of the push rod's vertical movement. The symmetrically arranged slots 10 at both ends of the base 2 are tightly engaged with the tail end of the terminal 5, realizing quick positioning and electrical connection fixation of the terminal. Through the coordinated design of the step, through hole and slot, the accuracy of diaphragm deformation transmission is ensured, and the stability of terminal assembly is enhanced. The modular structure simplifies the production process, reduces component matching errors, and facilitates later maintenance or replacement of key components.

[0037] The base 2 has a recessed mounting groove at its bottom. The two ends of the cover plate 8 are precisely inserted into the mounting groove of the base 2 by molding mounting blocks 11, forming a closed and fixed structure. The snap-fit ​​between the mounting blocks 11 and the base 2 can achieve quick positioning and stable installation of the cover plate 8 without additional fasteners, greatly simplifying the assembly process. The recessed mounting groove provides mechanical restraint on the lateral displacement of the cover plate 8, effectively preventing the risk of loosening caused by vibration or impact. The tight fit between the cover plate 8 and the base 2 ensures the sealing and protection of the internal components. At the same time, the detachable design facilitates non-destructive disassembly and assembly during maintenance, taking into account both structural reliability and maintenance convenience.

[0038] See Figures 6-8 This temperature controller adopts a dual-terminal 5 side-mounted design. One side terminal 5 is connected to the limiting hole of the spring 6 through the bottom limiting post 12, which precisely constrains the horizontal displacement of the spring 6. The upper end of the other side terminal 5 is fixed with a stationary contact 13. The corresponding side of the spring 6 forms an initial closed state with the stationary contact 13 through the moving contact 14. The hole shaft cooperation between the limiting post 12 and the spring 6 ensures the alignment accuracy of the moving contact 14 and the stationary contact 13, avoiding poor contact caused by movement deviation. The split contact design makes it easy to replace the contact individually after contact wear, reducing maintenance costs. The initial contact state of the stationary contact 13 and the moving contact 14 ensures the stability of circuit conduction, and the contact can quickly separate to respond to the temperature control signal when the spring 6 is deformed. The modular terminal group structure simplifies the assembly process and improves production efficiency and product consistency.

[0039] The push rod 7 has an outwardly protruding stop 15 in the middle. The upper surface of the spring 6 forms a contact fit with the lower edge of the stop 15 through the arc-shaped contact block 16. The convex design of the arc-shaped contact block 16 can adapt to the displacement trajectory of the push rod 7, ensuring that the pressure distribution is uniform when the stop 15 contacts the spring 6, reducing local wear. The limiting function of the stop 15 can accurately control the stroke range of the push rod 7, avoiding overshoot and plastic deformation of the spring 6. At the same time, the linear contact mode between the contact block 16 and the stop 15 improves the force transmission efficiency, enabling the spring 6 to respond quickly when the temperature control action is triggered, enhancing the sensitivity and consistency of the contact point disconnection. The overall structure is compact and reliable, and is suitable for high-frequency action scenarios.

[0040] An initial gap is reserved between the reed 6 and the cover plate 8 to form a non-contact buffer space, the gap allows the reed 6 to move in parallel in the temperature control action, avoids mechanical interference of the cover plate 8 to its displacement track, guarantees the action sensitivity and the stroke integrity; at the same time, the non-contact state of the reed 6 and the cover plate 8 can eliminate the friction loss, prolong the fatigue life of the reed 6; in addition, the gap provides a redundant tolerance space for the thermal expansion or vibration fluctuation of the reed 6, prevents stress concentration or abnormal contact of the contact due to material deformation, and improves the stability and reliability of the temperature controller under complex working conditions.

[0041] The temperature controller shell 1 is designed with an integral mounting plate extending outward on both sides, and the mounting plate is uniformly distributed with through holes as fixing interfaces, and the outwardly expanded mounting plate forms multi-point dispersed support through extension force arm, reduces the risk of local load concentration of the mounting surface, and avoids deformation of the shell 1 due to fastening pressure; the through hole is adapted to a standardized fastener, and is compatible with screws, rivets or buckles and various fixing modes.

[0042] Finally, it should be pointed out that: first, in the description of the present application, it should be pointed out that, unless otherwise specified and limited, the terms "mounting", "connection", "connection" should be understood broadly, which can be mechanical connection or electrical connection, or the communication between two elements, or direct connection, "up", "down", "left", "right" and the like are only used to indicate the relative positional relationship, when the absolute position of the described object changes, the relative positional relationship may change;

[0043] Secondly: the utility model discloses the embodiment of the drawings, only relate to the structure involved in the embodiment of the present disclosure, other structures can refer to the usual design, under the condition of no conflict, the same embodiment and different embodiments of the utility model can be combined with each other;

[0044] Finally: the above-mentioned is only the preferred embodiment of the utility model, and is not used for limiting the utility model, it should be pointed out that, for ordinary skilled person in the art, on the premise of not departing from the technical principle of the present application, can make a number of improvements and modifications, these improvements and modifications should be regarded as the protection scope of the utility model.

Claims

1. A thermostat, comprising a housing (1), characterized in that: The inner end of the outer shell (1) is hollow. The base (2) is inserted into the outer shell (1). Metal sheet (3) and diaphragm (4) are installed from top to bottom in the space between the upper end of the base (2) and the inner end of the outer shell (1). Terminals (5) are inserted into the four corners of the lower end of the base (2). Riveted springs (6) are placed on the terminals (5). The upper end of the springs (6) contacts the push rod (7). The top of the push rod (7) contacts the lower edge of the diaphragm (4). The lower end of the base (2) has a cover plate (8) for sealing.

2. A temperature controller according to claim 1, characterized in that: The base (2) has a step (9) inside the inner cavity for supporting the diaphragm (4), a through hole in the middle of the base (2) for the upper end of the push rod (7) to pass through, and slots (10) at both ends of the base (2) for the insertion of the tail end of the terminal (5).

3. A temperature controller according to claim 2, characterized in that: The base (2) has a recessed mounting groove at the bottom, and the cover plate (8) has mounting blocks (11) at both ends for snapping in.

4. A temperature controller according to claim 1, characterized in that: Two terminals (5) on the same side are a group. There are multiple protruding limiting posts (12) below one of the terminals (5). The limiting posts (12) cooperate with the limiting holes on one side of the spring (6). The upper end of the other terminal (5) is fixed with a stationary contact (13). The through hole on the other side of the spring (6) is fixedly connected to the moving contact (14). The stationary contact (13) and the moving contact (14) are in contact in the initial state.

5. A temperature controller according to claim 4, characterized in that: The push rod (7) has an outward protruding stop (15) in the middle, and the upper surface of the spring (6) has an upward protruding arc-shaped contact block (16), which contacts the lower edge of the stop (15).

6. A temperature controller according to claim 5, characterized in that: There is a gap between the spring (6) and the cover plate (8) in the initial state.

7. A temperature controller according to claim 6, characterized in that: The outer casing (1) has outwardly extending mounting plates on both sides, with through holes for fixing.

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