Kick type temperature controller

Abstract

The utility model discloses a kick type temperature controller, and relates to the technical field of temperature controllers. The utility model comprises a shell and also comprises flat feet arranged on two sides of the bottom of the shell, a sealing cover is arranged at the top end outside the shell, a fixing ring is arranged at the bottom outside the sealing cover, and short rivets are arranged between one side inside the shell and the flat feet in a penetrating manner. According to the utility model, the limiting and stabilizing assembly is arranged at the bottom of one side in the shell, two ends of the limiting sheet are clamped into the positioning clamping grooves during use, the limiting grooves are nested outside the movable contact support, and the movable contact support is limited through the limiting grooves during operation of the temperature controller, so that the temperature controller is prevented from being damaged. Deflection of the movable contact support with the short rivet as the circle center due to impact on the temperature controller is prevented, it is ensured that the movable contact support is normally pushed to descend by the ceramic actuating rod and normally ascends after pressure is eliminated, and the situation that the movable contact and the static contact are staggered due to deflection of the movable contact support and normal connection of a circuit is affected is avoided. Therefore, the stable operation of the kick type temperature controller is further ensured.

Description

TECHNICAL FIELD

[0001] The utility model belongs to temperature controller technical field, especially, relate to a kind of sudden jump type temperature controller. BACKGROUND

[0002] The sudden jump type temperature controller is a kind of automatic control element using bimetallic strip as temperature sensing component to prevent equipment or component from being damaged due to overheating, which is widely used in various electrical equipment such as air conditioner, water heater, fan, etc. due to its high-precision temperature control and fast response.

[0003] As the utility model discloses a kind of sudden jump type temperature controller disclosed in authorized announcement No.CN205582822U, including top cover, bimetallic strip, guide frame and shell, guide frame is located in shell, shell is equipped with annular support table, the edge of bimetallic strip is located on annular support table, top cover is sleeved in shell, the top surface of top cover has annular recess, shell top is sleeved outside annular recess, the side surface of top cover is pressed together with the side surface of shell.The sudden jump type temperature controller adopts annular pressed top cover, bimetallic strip and shell, so that the cooperation of bimetallic strip and annular support table is more closely, the edge of bimetallic strip can completely lie on annular support table, the stability of bimetallic strip is enhanced, and the bimetallic strip will not appear clamping piece when rotating packaging top cover and shell, effectively improve the qualified rate of product.However, the technical scheme in the application process of the moving contact support is connected with the temperature controller main body through short rivet, and the moving contact support is easy to deflect due to loosening of short rivet during long-term use of temperature controller, so that the temperature controller circuit is normally turned on, and there is a technical problem that the moving contact support cannot be limited and stabilized to ensure that the moving contact and the static contact are always corresponding to ensure that the circuit is normally turned on. UTILITY MODEL CONTENTS

[0004] In view of the above-mentioned shortcomings of the prior art, the utility model provides a sudden jump type temperature controller, which can effectively solve the problems of the prior art.

[0005] To solve the above technical problems, the utility model is realized by the following technical solutions:

[0006] The utility model discloses a kind of sudden jump type temperature controller, including shell, further include: the bottom of the shell both sides is provided with flat foot, the top of the shell outside is provided with cover, the bottom of the cover outside is provided with fixed ring, short rivet is arranged between the inside of the shell and flat foot, long rivet is arranged between the other side of the inside of the shell and flat foot, short rivet outside the bottom end side of the inside of the shell is provided with movable contact support, the side of the movable contact support top is provided with movable contact, long rivet outside the other side of the bottom end of the inside of the shell is provided with static contact fixed sheet, the side of the static contact fixed sheet bottom is provided with static contact, the cover in the top of the shell is provided with guide frame, ceramic action rod is arranged at the middle position of the inside of the guide frame, bimetallic strip is provided at the top between the inside of the guide frame, the side of the bottom end of the inside of the shell is provided with limiting sheet, limiting groove is arranged at the middle position of the side of the limiting sheet, positioning clamping groove is provided at the side of the inside of the shell and the side of the bottom, sealing assembly is arranged between the bottom of the fixed ring and the outside of the shell.

[0007] Further, the limiting sheet is in "L" shape, and the side and bottom of the limiting sheet are clamped into the inside of the positioning clamping groove.

[0008] Further, the limiting groove is in "U" shape, and the limiting groove is nested outside the movable contact support, and the width of the movable contact support is less than the width of the limiting groove.

[0009] Further, the movable contact corresponds to the static contact, and the ceramic action rod can be lifted and moved at the middle position of the inside of the guide frame.

[0010] Further, the sealing assembly comprises a connecting sleeve, the connecting sleeve is fixedly connected to the bottom of the fixed ring, the outside of the shell is provided with a plug near the middle position, the top of the plug is provided with a sealing strip, and the outside of the plug is provided with a fastening sleeve.

[0011] Further, the plug and the sealing strip are annular, the outer diameter of the plug is less than the inner diameter of the connecting sleeve, the fastening sleeve is in "L" shape in vertical section, the outside of the connecting sleeve is provided with external threads, and the inside of the fastening sleeve is provided with internal threads matched with the external threads.

[0012] The utility model has the following beneficial effects:

[0013] 1. This utility model provides a limiting and stabilizing component at the bottom of one side inside the housing. During the assembly of the thermostat, the two ends of the limiting plate are snapped into the inside of the positioning slot, and the limiting slot is nested outside the moving contact bracket. When the thermostat is working, the limiting slot limits the moving contact bracket, preventing the moving contact bracket from deflecting around the short rivet when the thermostat is impacted. This ensures that the moving contact bracket can be normally pushed down by the ceramic actuating rod and rise normally after the pressure is released. It also avoids the moving contact bracket from deflecting and causing the moving contact to misalign with the stationary contact, thus affecting the normal circuit connection. This further ensures the stable operation of the snap-action thermostat and is highly feasible.

[0014] 2. This utility model provides a sealing component between the bottom of the fixing ring and the outer side of the housing. When assembling the thermostat and sealing the cover on the top of the housing, the gaps at the connection are sealed by the plug and sealing strip. The fastening sleeve is tightened and fixed to the outside of the connecting sleeve by the threaded connection, thereby ensuring the sealing effect and preventing water and dust from entering the thermostat during use, which may cause poor contact between the moving and stationary contacts. At the same time, it further improves the structural stability of the thermostat. Attached Figure Description

[0015] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0017] Figure 2 This is a partially exploded view of the present invention from below;

[0018] Figure 3 This is a frontal cross-sectional view of the present invention.

[0019] Figure 4 For the present utility model Figure 3 Enlarged structural diagram at point A in the middle.

[0020] The attached diagram lists the components represented by each number as follows:

[0021] 1. Housing; 2. Fastening sleeve; 3. Flat foot; 4. Fixing ring; 5. Cover; 6. Short rivet; 7. Long rivet; 8. Connecting sleeve; 9. Moving contact bracket; 10. Limiting groove; 11. Moving contact; 12. Stationary contact; 13. Stationary contact fixing piece; 14. Guide frame; 15. Bimetallic strip; 16. Ceramic actuating rod; 17. Limiting piece; 18. Sealing strip; 19. Plug; 20. Positioning slot. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the utility model will be described clearly and completely below with reference to the drawings in the embodiments of the utility model.

[0023] Please refer to Figures 1-4 The utility model discloses a kind of sudden jump temperature controller, including shell 1, further include: the bottom of shell 1 both sides is provided with flat foot 3, the top of shell 1 outside is provided with cover 5, the bottom of cover 5 outside is provided with fixed ring 4, short rivet 6 is arranged between the inside of shell 1 and flat foot 3, long rivet 7 is arranged between the other side of shell 1 inside and flat foot 3, short rivet 6 outside the bottom end side of shell 1 inside is provided with moving contact support 9, the side of the top of moving contact support 9 is provided with moving contact 11, long rivet 7 outside the other side of the bottom end of shell 1 inside is provided with static contact fixed sheet 13, the side of the bottom of static contact fixed sheet 13 is provided with static contact 12, moving contact 11 and static contact 12 correspond, cover 5 in the top of shell 1 is provided with guide frame 14, ceramic action rod 16 is arranged at the middle position of guide frame 14 inside, ceramic action rod 16 can be lifted and moved at the middle position of guide frame 14 inside, the top between the inside of guide frame 14 is provided with bimetallic strip 15, when the temperature of product main part increases or reduces when equipment works, the heat generated is transferred to bimetallic strip 15, and it produces sudden jump action instantaneously, the action is transferred to moving contact support 9 by ceramic action rod 16, after moving contact support 9 is pushed by ceramic action rod 16, moving contact 11 and static contact 12 are separated, to make circuit disconnect.When the temperature of bimetallic strip 15 restores to temperature, bimetallic strip 15 restores original shape instantaneously, the pressure on ceramic action rod 16 is eliminated, moving contact 11 and static contact 12 restore to connect, to make circuit communication.

[0024] As a further embodiment of the present embodiment, as Figure 1 , Figure 3 and Figure 4As shown, the bottom end of the housing 1 is provided with a "L" shaped limiting piece 17, the side and bottom of the housing 1 is provided with a positioning slot 20, the side and bottom of the limiting piece 17 is clamped into the inside of the positioning slot 20, so that the limiting piece 17 is positioned and stably installed in the housing 1, the middle position of the side of the limiting piece 17 is provided with a "U" shaped limiting groove 10, the limiting groove 10 is nested on the outside of the movable contact support 9, the width of the movable contact support 9 is less than the width of the limiting groove 10, the movable contact support 9 is limited by the limiting groove 10 when the thermostat is working, so as to prevent the movable contact support 9 from being deflected with the short rivet 6 as the center due to the impact of the thermostat, thereby avoiding the deflection of the movable contact support 9 causing the movable contact 11 and the static contact 12 to be misaligned and affecting the normal connection of the circuit, and ensuring that the movable contact support 9 can be normally pushed down by the ceramic action rod 16 and normally rise after the pressure is eliminated, thereby further ensuring the stable working of the snap type thermostat;

[0025] When used, the two ends of the limiting piece 17 are clamped into the inside of the positioning slot 20, and the limiting groove 10 is nested on the outside of the movable contact support 9, the movable contact support 9 is limited by the limiting groove 10 when the thermostat is working, so as to ensure that the movable contact support 9 can be normally pushed down by the ceramic action rod 16 and normally rise after the pressure is eliminated, and avoid the deflection of the movable contact support 9 causing the movable contact 11 and the static contact 12 to be misaligned;

[0026] As a further embodiment of the present embodiment, as shown in Figures 1-4 As shown, the bottom of the fixed ring 4 and the outside of the housing 1 are provided with a sealing assembly, the sealing assembly includes a connecting sleeve 8, the connecting sleeve 8 is fixedly connected to the bottom of the fixed ring 4, the outside of the housing 1 is provided with a ring shaped blocking piece 19 near the middle position, the outer diameter of the blocking piece 19 is less than the inner diameter of the connecting sleeve 8, the top of the blocking piece 19 is provided with a ring shaped sealing strip 18, the connecting sleeve 8 is clamped into the inside of the positioning slot 20, so that the limiting piece 17 is positioned and stably installed in the housing 1, the middle position of the side of the limiting piece 17 is provided with a "U" shaped limiting groove 10, the limiting groove 10 is nested on the outside of the movable contact support 9, the width of the movable contact support 9 is less than the width of the limiting groove 10, the movable contact support 9 is limited by the limiting groove 10 when the thermostat is working, so as to prevent the movable contact support 9 from being deflected with the short rivet 6 as the center due to the impact of the thermostat, thereby avoiding the deflection of the movable contact support 9 causing the movable contact 11 and the static contact 12 to be misaligned and affecting the normal connection of the circuit, and ensuring that the movable contact support 9 can be normally pushed down by the ceramic action rod 16 and normally rise after the pressure is eliminated, thereby further ensuring the stable working of the snap type thermostat;

[0027] Working principle: when using the jump type temperature controller, the cover 5 is packaged at the top of the shell 1, the joint gap is sealed by the sealing strip 18 and the sealing piece 19, the fastening sleeve 2 is screwed and fixed outside the connecting sleeve 8, the limiting piece 17 is clamped into the inside of the positioning slot 20, and the limiting groove 10 is nested outside the moving contact support 9. When the temperature controller works, the heat generated by the increase or decrease of the temperature of the product main part is transferred to the bimetallic strip 15, which produces a jump action, which is transmitted to the moving contact support 9 by the ceramic action rod 16. After the moving contact support 9 is pushed by the ceramic action rod 16, the moving contact 11 and the static contact 12 are separated, so that the circuit is disconnected. When the temperature decreases and the bimetallic strip 15 returns to the original temperature, the bimetallic strip 15 instantaneously restores the original shape, the pressure on the ceramic action rod 16 is eliminated, the moving contact 11 and the static contact 12 are restored to be connected, so that the circuit is connected, and the moving contact support 9 moves up and down through the limiting groove 10, which ensures that the moving contact support 9 can be normally pushed down by the ceramic action rod 16 and normally rise after the pressure is eliminated, and avoids the deflection of the moving contact support 9, which causes the moving contact 11 and the static contact 12 to be misaligned, so as to ensure the normal and stable work of the jump type temperature controller.

[0028] The above is only the preferred embodiment of the present application, and does not limit the present application. Any modification, equivalent replacement, improvement of any modification, equivalent replacement, improvement of the technical solutions described in the foregoing embodiments, all belong to the protection scope of the present application.

Claims

1. A snap-action thermostat comprising a housing (1), characterized in that Also include: The bottom of the shell (1) is provided with flat feet (3), the top of the shell (1) is provided with a cover (5), the bottom of the cover (5) is provided with a fixed ring (4), the inside of the shell (1) is provided with a short rivet (6) between one side and the flat feet (3), the inside of the shell (1) is provided with a long rivet (7) between the other side and the flat feet (3), the short rivet (6) outside the bottom of the shell (1) is provided with a moving contact support (9), one side of the top of the moving contact support (9) is provided with a moving contact (11), the long rivet (7) outside the other side of the bottom of the shell (1) is provided with a static contact fixed sheet (13), one side of the bottom of the static contact fixed sheet (13) is provided with a static contact (12), the cover (5) of the top of the shell (1) is provided with a guide frame (14), the inside of the guide frame (14) is provided with a ceramic action rod (16) at the middle position, the top of the inside of the guide frame (14) is provided with a bimetallic strip (15), the inside of the shell (1) is provided with a limiting sheet (17) at the bottom, the limiting sheet (17) is provided with a limiting groove (10) at the middle position of one side, the inside of one side and the bottom of the shell (1) is provided with a positioning clamping groove (20), the bottom of the fixed ring (4) and the outside of the shell (1) are provided with a sealing assembly.

2. A snap-action temperature controller according to claim 1, wherein The limiting sheet (17) is "L" shaped, and the limiting sheet (17) is clamped into the inside of the positioning clamping groove (20) on one side and the bottom.

3. A snap-action temperature controller according to claim 1, wherein The limiting groove (10) is "U" shaped, and the limiting groove (10) is nested on the outside of the moving contact support (9), and the width of the moving contact support (9) is smaller than the width of the limiting groove (10).

4. A snap-action temperature controller according to claim 1, wherein The moving contact (11) corresponds to the static contact (12), and the ceramic action rod (16) can move up and down at the middle position inside the guide frame (14).

5. The snap-action temperature controller of claim 1, wherein: The sealing assembly comprises a connecting sleeve (8) fixedly connected to the bottom of the fixed ring (4), a plug sheet (19) provided on the outside of the shell (1) near the middle position, a sealing strip (18) provided on the top of the plug sheet (19), and a fastening sleeve (2) provided on the outside of the plug sheet (19).

6. A snap-action temperature controller according to claim 5, wherein The plug sheet (19) and the sealing strip (18) are annular, the outer diameter of the plug sheet (19) is smaller than the inner diameter of the connecting sleeve (8), the vertical section of the fastening sleeve (2) is "L" shaped, the outside of the connecting sleeve (8) is provided with external threads, and the inside of the fastening sleeve (2) is provided with internal threads matched with the external threads.

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