A waterproof sealing structure of a thermostat

Abstract

The utility model discloses a waterproof sealing structure of temperature controller belongs to the technical field of the sudden jump type temperature controller, including the main part, the both sides of the bottom of main part are connected with the pin frame, the main part includes the shell frame, the top outer wall all around of shell frame is established with the clamping slot, the top outer wall all around of shell frame is embedded with the rubber ring, the outer wall all around of rubber ring is closely combined with stainless steel cover. This waterproof sealing structure of temperature controller is composed of the stainless steel cover of shell frame and the clamping slot of top, and after the stainless steel cover all around buckling surface and the clamping slot buckle, cooperate the rubber ring and can keep the all around sealing property after buckling, and at the same time, the outer wall all around of stainless steel cover is combined with the annular sleeve, and the double -layer sealing structure is formed with stainless steel cover combination, cooperate the sealing rubber sleeve protection bottom surface sealing of bottom, can when being affected by water stain, the maximum degree avoids water stain and enters temperature controller casing inside, promotes use security and stability.

Description

Technical Field

[0001] This utility model relates to the field of snap-action thermostat technology, specifically a waterproof sealing structure for a thermostat. Background Technology

[0002] A snap-action thermostat is a temperature control device based on the principle of bimetallic strip deformation under heat. It achieves circuit switching through a momentary mechanical action and is widely used in overheat protection and precise temperature control scenarios for household appliances and industrial equipment. When the temperature of the main component of the product increases or decreases, the heat generated is transferred to the bimetallic disc. When the set operating temperature is reached, the thermostat quickly activates, causing the contacts to open or close through the mechanism, thereby connecting or disconnecting the circuit and controlling the circuit. When used as overheat protection for motors, snap-action thermostats are connected in series with the motor. They can effectively prevent the burning out of the motor's heating elements and the resulting fire accidents. They have a very wide range of applications. However, in humid environments, if the thermostat comes into contact with water, it can easily affect normal temperature control. Therefore, the waterproof performance of the thermostat also needs to be considered.

[0003] The top of the aforementioned snap-action thermostat mainly consists of a bimetallic disc and an external stainless steel thermally conductive cover. The bimetallic disc is made of two metals with different coefficients of thermal expansion pressed together. When heated, it bends due to the difference in deformation and snaps instantly after reaching the set temperature. The stainless steel thermally conductive cover is mostly made of stainless steel and covers the surface of the bimetallic disc, directly contacting the heating element to transfer heat. It also serves to protect the surface of the thermostat. However, the stainless steel thermally conductive cover of this type of thermostat is only fastened to the top surface of the thermostat around the perimeter, and its waterproofness is limited. In humid and water-stained environments, it is difficult to keep the inside from being affected by water stains, thus affecting the normal use of the thermostat. Therefore, we propose a waterproof sealing structure for thermostats. Utility Model Content

[0004] The summary section of this application is intended to provide a brief overview of the concepts, which will be described in detail in the detailed description section below. This summary section is not intended to identify key or essential features of the claimed technical solutions, nor is it intended to limit the scope of the claimed technical solutions.

[0005] The purpose of this invention is to provide a waterproof sealing structure for a thermostat to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a waterproof sealing structure for a thermostat, comprising a main body, pin holders connected to both sides of the bottom end of the main body, the main body including a housing frame, slots formed around the top outer wall of the housing frame, rubber rings embedded around the top outer wall of the housing frame, a stainless steel cap tightly fitted around the outer wall of the rubber rings, a sandwich frame arranged around the top inner wall of the stainless steel cap, an annular sleeve fitted around the outer wall of the stainless steel cap, a mounting bracket fixed to the top surface of the annular sleeve, mounting holes formed at both ends of the mounting bracket, a bimetallic butterfly plate placed on the top surface of the housing frame, a contact rod attached to the center of the bottom surface of the bimetallic butterfly plate, a spring attached to the bottom end of the contact rod, a contact point connected to one end of the spring, and a sealing sleeve fitted around the bottom end of the housing frame.

[0007] Furthermore, the stainless steel cover is fastened to the top perimeter of the outer casing frame via a slot, and the rubber ring is evenly attached to the perimeter of the outer wall of the outer casing frame and the perimeter of the inner wall of the stainless steel cover.

[0008] Furthermore, the annular sleeve is evenly fitted around the outer wall of the stainless steel cover, and the annular sleeve is fixedly connected to the outer casing frame.

[0009] Furthermore, the stainless steel cap is fastened to the bimetallic butterfly plate around the perimeter via a sandwich frame, and a gap is maintained between the bottom surface of the stainless steel cap and the top surface of the bimetallic butterfly plate.

[0010] Furthermore, the sealing sleeve is evenly fitted around the bottom of the outer casing frame, and the sealing sleeve is made of rubber.

[0011] Furthermore, the pin frame includes a pin plate, one end of which has a wiring hole, the other end of which is fitted with a connecting post, and a sealing sleeve is fitted in the middle of the pin plate, with the sealing sleeve embedded in both sides of the bottom of the outer casing.

[0012] Furthermore, the pin plate is fixedly connected to the connecting post, and the pin plate is tightly fitted to both sides of the bottom of the housing frame through the sealing sleeve.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] The waterproof sealing structure of this thermostat consists of an outer frame and a stainless steel cover that snaps into the top. After the stainless steel cover snaps into the slot, the rubber rings help to maintain the seal around the perimeter. At the same time, an annular sleeve is attached to the outer wall of the stainless steel cover, forming a double-layer sealing structure. Combined with the sealing sleeve at the bottom to protect the bottom seal, this structure can minimize the risk of water entering the thermostat housing when affected by water, thus improving safety and stability.

[0015] The thermostat has a waterproof sealing structure with a gap between the top surface of the bimetallic disc and the stainless steel cover. The sandwich frame with a ring of cloth around the top and bottom of the stainless steel cover supports the edges of the top surface of the bimetallic disc, ensuring that the gap is stable and does not affect the normal deformation process of the bimetallic disc. This allows the contact rod on the bottom surface of the bimetallic disc to be triggered normally, further improving the stability of the thermostat.

[0016] The waterproof sealing structure of this thermostat has correspondingly sized sealing sleeves embedded at the pin lead-out positions on both sides of the bottom of the housing frame. These sealing sleeves are also made of rubber, which ensures that water stains cannot easily seep in from the sides, thereby maintaining the stability of the internal structure. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the three-dimensional structure of the main body of this utility model;

[0018] Figure 2 This is a front view of the internal structure of the outer shell frame of this utility model;

[0019] Figure 3 This is a side view of the internal structure of the outer shell frame of this utility model;

[0020] Figure 4 This is a three-dimensional structural diagram of the pin holder of this utility model.

[0021] In the diagram: 1. Main body; 101. Outer shell frame; 102. Card slot; 103. Rubber ring; 104. Stainless steel cover; 105. Mezzanine frame; 106. Ring sleeve; 107. Mounting bracket; 108. Mounting hole; 109. Bimetallic butterfly plate; 110. Contact rod; 111. Spring; 112. Contact position; 113. Sealing sleeve; 2. Pin holder; 201. Pin plate; 202. Wiring hole; 203. Connecting post; 204. Sealing sleeve. Detailed Implementation

[0022] Embodiments of this disclosure will now be described in more detail with reference to the accompanying drawings. While some embodiments of this disclosure are shown in the drawings, it should be understood that this disclosure can be implemented in various forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of this disclosure. It should be understood that the accompanying drawings and embodiments of this disclosure are for illustrative purposes only and are not intended to limit the scope of protection of this disclosure.

[0023] It should also be noted that, for ease of description, only the parts relevant to the utility model are shown in the accompanying drawings. Unless otherwise specified, the embodiments and features described in this disclosure can be combined with each other.

[0024] It should be noted that the concepts of "first" and "second" mentioned in this disclosure are used only to distinguish different devices, modules, or units, and are not used to limit the order of functions performed by these devices, modules, or units or their interdependencies.

[0025] It should be noted that the terms "a" and "a plurality of" used in this disclosure are illustrative rather than restrictive, and those skilled in the art should understand that, unless otherwise expressly indicated in the context, they should be understood as "one or more".

[0026] This disclosure will now be described in detail with reference to the accompanying drawings and embodiments.

[0027] This utility model provides, for example Figure 1-4 The illustrated waterproof sealing structure for a thermostat includes a main body 1. Pin holders 2 are connected to both sides of the bottom of the main body 1. The main body 1 includes a housing frame 101. The top outer wall of the housing frame 101 has slots 102 around its perimeter. Rubber rings 103 are embedded around the top outer wall of the housing frame 101. A stainless steel cover 104 is tightly fitted around the perimeter of the rubber rings 103. A layered frame 105 is arranged around the top inner wall of the stainless steel cover 104. An annular sleeve 106 is fitted around the outer wall. A mounting bracket 107 is fixed on the top surface of the annular sleeve 106. Mounting holes 108 are opened at both ends of the mounting bracket 107. A bimetallic butterfly plate 109 is placed on the top surface of the outer shell frame 101. A contact rod 110 is attached to the center of the bottom surface of the bimetallic butterfly plate 109. A spring 111 is attached to the bottom end of the contact rod 110. One end of the spring 111 is connected to a contact point 112. A sealing rubber sleeve 113 is fitted around the bottom end of the outer shell frame 101.

[0028] To ensure stable temperature control and safety in humid and water-damaged environments, such as... Figure 1-3 As shown, the waterproof sealing structure of this thermostat consists of an outer shell frame 101 and a stainless steel cover 104 that is fastened to the top of the slot 102. After the four fastening surfaces of the stainless steel cover 104 are fastened to the slot 102, the rubber ring 103 can maintain the sealing of the four sides after fastening. At the same time, an annular sleeve 106 is attached to the outer wall of the stainless steel cover 104, which together with the stainless steel cover 104 forms a double-layer sealing structure. With the sealing sleeve 113 at the bottom to protect the bottom sealing, it can minimize the entry of water stains into the thermostat housing when affected by water stains, thereby improving the safety and stability of use.

[0029] A gap is maintained between the top surface of the bimetallic disc 109 and the stainless steel cover 104. The sandwich frame 105, which is wrapped around the top and bottom surfaces of the stainless steel cover 104, supports the edges of the top surface of the bimetallic disc 109. This ensures that the gap is stable and does not affect the normal deformation process of the bimetallic disc 109. As a result, the contact rod 110 on the bottom surface of the bimetallic disc 109 can be triggered normally, further improving the stability of the temperature controller.

[0030] like Figure 1-4 As shown, the pin frame 2 includes a pin piece 201. One end of the pin piece 201 is provided with a wiring hole 202, and the other end of the pin piece 201 is sleeved with a connecting post 203. A sealing sleeve 204 is sleeved in the middle of the pin piece 201, and the sealing sleeve 204 is embedded in the bottom sides of the outer casing frame 101.

[0031] To improve the bottom's water resistance, such as Figure 1-4 As shown, the waterproof sealing structure of this thermostat has a sealing sleeve 204 of corresponding size embedded at the lead-out position of the pin piece 201 on both sides of the bottom of the housing frame 101. This sealing sleeve 204 is also made of rubber, which can ensure that water stains are difficult to seep in from the side, thereby maintaining the stability of the internal structure.

[0032] In summary, when using this waterproof sealing structure, the user can first place the thermostat using the mounting bracket 107 fixed on the top surface of the annular sleeve 106 and the mounting holes 108 at both ends. The thermostat can be fixed to the equipment using fasteners, while ensuring that the top surface of the stainless steel cover 104 is close to the heat source. During normal use, external water stains and moisture are protected by the annular sleeve 106. If some water stains enter the gap between the annular sleeve 106 and the stainless steel cover 104, they will also be protected by the closure and the rubber ring 103, thus preventing water stains. When the temperature reaches the threshold, its bimetallic disc 109 deforms and presses down in the center, pressing down the contact rod 110. The pressed contact rod 110 drives the spring 111 to press down synchronously. The contact point 112 on one side of the spring 111 disconnects synchronously with the pressure, completing the disconnection process.

[0033] The above description is merely a selection of preferred embodiments of this disclosure and an explanation of the technical principles employed. Those skilled in the art should understand that the scope of the utility model involved in the embodiments of this disclosure is not limited to the technical solutions formed by specific combinations of the above-described technical features, but should also cover other technical solutions formed by arbitrary combinations of the above-described technical features or their equivalents without departing from the above-described inventive concept. For example, technical solutions formed by substituting the above features with (but not limited to) technical features with similar functions disclosed in the embodiments of this disclosure.

Claims

1. A waterproof sealing structure for a thermostat, comprising a main body (1), characterized in that, The bottom two sides of the main body (1) are connected to pin brackets (2). The main body (1) includes a housing frame (101). The outer wall of the housing frame (101) is provided with slots (102) around its top. The outer wall of the housing frame (101) is embedded with rubber rings (103). The outer wall of the rubber rings (103) is tightly fitted with stainless steel caps (104). The inner wall of the top of the stainless steel caps (104) is arranged with interlayer frames (105). The outer wall of the stainless steel caps (104) is fitted with annular sleeves (105). 6) A mounting bracket (107) is fixed on the top surface of the annular sleeve (106). The mounting bracket (107) has mounting holes (108) at both ends. A bimetallic butterfly plate (109) is placed on the top surface of the outer shell frame (101). A contact rod (110) is attached to the center of the bottom surface of the bimetallic butterfly plate (109). A spring (111) is attached to the bottom end of the contact rod (110). One end of the spring (111) is connected to a contact point (112). A sealing rubber sleeve (113) is fitted around the bottom end of the outer shell frame (101).

2. The waterproof sealing structure for a thermostat according to claim 1, characterized in that, The stainless steel cover (104) is fastened to the top periphery of the outer casing (101) through the slot (102), and the rubber ring (103) is evenly attached to the periphery of the outer wall of the outer casing (101) and the periphery of the inner wall of the stainless steel cover (104).

3. The waterproof sealing structure for a thermostat according to claim 1, characterized in that, The annular sleeve (106) fits evenly around the outer wall of the stainless steel cover (104), and the annular sleeve (106) is fixedly connected to the outer frame (101) around the perimeter.

4. The waterproof sealing structure for a thermostat according to claim 1, characterized in that, The stainless steel cap (104) is fastened to the bimetallic butterfly plate (109) around the perimeter by the interlayer frame (105), and a gap is maintained between the bottom surface of the stainless steel cap (104) and the top surface of the bimetallic butterfly plate (109).

5. The waterproof sealing structure for a thermostat according to claim 1, characterized in that, The sealing sleeve (113) is evenly fitted around the bottom of the outer casing (101), and the sealing sleeve (113) is made of rubber.

6. The waterproof sealing structure for a thermostat according to claim 1, characterized in that, The pin frame (2) includes a pin piece (201), one end of which is provided with a wiring hole (202), the other end of which is fitted with a connecting post (203), and a sealing sleeve (204) is fitted in the middle of the pin piece (201), and the sealing sleeve (204) is embedded in the bottom sides of the outer casing frame (101).

7. The waterproof sealing structure for a thermostat according to claim 6, characterized in that, The pin piece (201) is fixedly connected to the connecting post (203), and the pin piece (201) is tightly fitted to both sides of the bottom of the outer casing (101) through the sealing sleeve (204).

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