Waterproof temperature controller

Abstract

The utility model relates to the technical field of thermal protectors, in particular to a waterproof temperature controller, a shell of the waterproof temperature controller is composed of three layers of structures including an outer layer shell, an inner support sleeve and an inner layer shell which are nested layer by layer to form a plurality of waterproof barriers, a protection space is provided for internal electrical elements, and external water vapor is effectively isolated; and the ports of the inner layer shell, the inner support sleeve and the outer layer shell are all provided with glue seals, so that the invasion of water vapor and dust is effectively prevented, and the waterproof performance and the sealing performance of the temperature controller are improved. The temperature sensing element is located in a first mounting groove of the mounting seat, and a first convex surface is formed on one side, opposite to the first mounting groove, of the mounting seat and is tightly attached to the inner wall of the bottom of the inner-layer shell, so that the heat transfer efficiency of the inner-layer shell to the temperature sensing element in the first mounting groove is improved; the outer layer shell is made of copper materials, and the opening is formed in the bottom face of the inner supporting sleeve, so that the environment temperature can be rapidly transmitted to the temperature sensing element of the installation base through the outer layer shell, the opening of the inner supporting sleeve and the inner layer shell, and the heat transmission path is optimized.

Description

Technical Field

[0001] The utility model relates to the technical field of thermal protectors, in particular to a waterproof temperature controller. Background Art

[0002] In air conditioning systems, thermostats, as key control components, not only monitor and regulate indoor temperature but also directly impact the system's operating efficiency and user experience. In air conditioning duct systems, in particular, thermostats operate in a complex and dynamic environment, often exposed to adverse factors such as moisture, humidity, and condensation.

[0003] If a thermostat is exposed to high humidity for extended periods, water may enter its internal temperature sensing mechanism. This moisture and humidity can accelerate the aging and corrosion of the thermostat's internal components, reducing their service life and causing inaccurate temperature measurements. There's also the possibility of leakage, which increases the risk of electric shock. Failures caused by poor waterproofing are often more serious and require time and effort to repair.

[0004] Because traditional thermostats often overlook the importance of waterproofing in their designs, they are susceptible to corrosion from moisture during use, leading to short circuits, malfunctions, and even safety incidents. This not only affects the normal operation of the air conditioning system but can also pose a threat to the user's property safety. Utility Model Content

[0005] The purpose of the present invention is to provide a waterproof thermostat to address the defects in the prior art.

[0006] In order to achieve the above-mentioned purpose, the technical solution adopted by the utility model is:

[0007] A waterproof thermostat, comprising: a housing and a fixing plate, an insulating plate, and a mounting seat disposed therein, wherein the insulating plate is disposed between the fixing plate and the mounting seat, and a first pin and a second pin are disposed on the fixing plate and the mounting seat, respectively;

[0008] A static contact and a moving contact are respectively provided on the fixing plate and the mounting base, and a temperature sensing element is further provided in the mounting base, and the moving contact is provided on the temperature sensing element corresponding to the static contact;

[0009] The outer shell includes an outer shell, an inner support sleeve and an inner shell. The inner support sleeve is sleeved on the inner shell, the outer shell is sleeved on the inner support sleeve, the inner shell is sleeved on the mounting seat, and the fixing plate is arranged on the mounting seat through the insulating plate.

[0010] Furthermore, a first mounting groove is provided on the mounting seat, and the temperature sensing element includes a bimetallic strip provided in the first mounting groove;

[0011] A first convex surface is correspondingly formed on a side of the mounting seat facing away from the first mounting groove, and the first convex surface is in contact with the bottom inner wall of the inner shell.

[0012] Furthermore, a boss and a mounting platform are provided in the first mounting groove, one end of the bimetallic strip is fixed to the mounting platform by a pin, and the boss is provided corresponding to the middle portion of the bimetallic strip.

[0013] Furthermore, the inner shell is fitted with the inner wall of the inner support sleeve, and an opening is provided on the bottom surface of the inner support sleeve at a position corresponding to the first raised surface;

[0014] The top of the inner support sleeve is in contact with the inner wall of the outer shell through a support block, and the open end of the inner support sleeve is engaged with the inner wall of the outer shell.

[0015] Furthermore, the length of the mounting seat is smaller than the internal depth of the inner shell, the length of the inner shell is smaller than the internal depth of the inner support sleeve, the length of the inner support sleeve is smaller than the internal depth of the outer shell, and glue seals are provided at the ports of the inner shell, the inner support sleeve and the outer shell.

[0016] Furthermore, the inner support sleeve is set to be an insulating material, and the outer shell is set to be copper.

[0017] Furthermore, a second mounting groove is provided on the fixing plate, and the static contact is provided in the second mounting groove;

[0018] A through opening is provided on the insulating plate corresponding to the bimetallic strip, and the first mounting groove cooperates with the through opening and the second mounting groove to form a working cavity.

[0019] Furthermore, limiting plates are relatively arranged on both sides of the length of the insulating plate, and the limiting plates include vertical plates and horizontal plates that fit with the edges of the fixing plates;

[0020] Limiting folds are relatively arranged on both sides of the length of the mounting seat, and the limiting folds are engaged with the length edges of both sides of the insulating plate.

[0021] Furthermore, a second raised surface is formed on the side of the fixed plate facing away from the second mounting groove, and the horizontal plate includes a first horizontal portion and a second horizontal portion arranged in parallel, and the first horizontal portion and the second horizontal portion are respectively in contact with the fixed plate and the second raised surface thereon.

[0022] Furthermore, the mounting seat is engaged with the inner wall of the inner shell to form a limiting hole between the two second horizontal portions, and a limiting block is provided on the inner wall of the inner shell corresponding to the limiting hole.

[0023] The beneficial effects of the utility model are:

[0024] In this application, the thermostat shell consists of a three-layer structure consisting of an outer shell, an inner support sleeve and an inner shell. The layers are nested to form multiple waterproof barriers, providing a protective space for the internal electrical components and effectively isolating external water vapor; glue seals are provided at the ports of the inner shell, inner support sleeve and outer shell, which effectively prevent the intrusion of water vapor and dust, and improve the waterproof performance and sealing of the thermostat.

[0025] A first raised surface is formed on the side of the mounting seat facing away from the first mounting groove, and is tightly fitted with the bottom inner wall of the inner shell, further improving the heat transfer quality from the inner shell to the temperature sensing element in the first mounting groove; the outer shell is set to copper material, and an opening is provided on the bottom surface of the inner support sleeve at a position corresponding to the first raised surface, so that the ambient temperature can be transferred to the temperature sensing element of the mounting seat more quickly through the outer shell, the opening of the inner support sleeve and the inner shell, thereby optimizing the heat transfer path and improving the heat transfer quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0027] Figure 1 This is a schematic diagram of the structure of the waterproof thermostat in the utility model;

[0028] Figure 2 This is a schematic diagram of the explosion of the waterproof thermostat in the utility model;

[0029] Figure 3 This is a schematic diagram of the installation of the inner shell and the inner support sleeve in the utility model;

[0030] Figure 4 This is a schematic diagram of the explosion of the internal components of the inner shell of the utility model;

[0031] Figure 5 This is a schematic diagram of the connection between the temperature sensing element and the mounting base in the utility model;

[0032] Figure 6 This is a schematic diagram of the structure of the internal components of the inner shell of the utility model;

[0033] Figure 7 This is a schematic diagram of the installation of the fixing plate, insulating plate and mounting base in the present invention;

[0034] Figure 8 This is a schematic diagram of the cross-sectional structure of the housing in the present utility model;

[0035] Figure 9 This is a schematic cross-sectional view of the internal components of the inner shell of the present invention.

[0036] Figure markings: 1. outer shell; 11. outer shell; 12. inner support sleeve; 121. opening; 122. support block; 13. inner shell; 131. limit block; 2. fixing plate; 21. second mounting groove; 22. static contact; 23. second raised surface; 24. first pin; 3. insulating plate; 31. through-port; 32. limit plate; 321. vertical plate; 322. horizontal plate; 322a. first horizontal portion; 322b. second horizontal portion; 323. limit hole; 4. mounting seat; 41. first mounting groove; 411. boss; 412. mounting platform; 413. pin; 42. first raised surface; 43. moving contact; 44. temperature sensing element; 441. bimetallic strip; 45. second pin; 46. limit folding edge; 5. working chamber. DETAILED DESCRIPTION

[0037] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0038] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly attached to the other element or there may be an intermediate element. When an element is referred to as being "connected to" another element, it may be directly connected to the other element or there may be an intermediate element. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only implementation methods.

[0039] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art to which this invention pertains. The terms used herein in the specification of this invention are intended only to describe specific embodiments and are not intended to limit the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0040] With the increasing popularity and widespread application of air conditioning systems, thermostats serve as a critical bridge between user needs and system responses. Their performance stability and reliability are directly related to the system's operational efficiency and user experience. However, traditional thermostats often suffer from water vapor corrosion due to their insufficient waterproofing in complex and changing operating environments, especially those with high humidity. This can lead to inaccurate temperature measurement, accelerated component aging, and even electrical leakage, seriously compromising the normal operation of air conditioning systems and the safety of users' property.

[0041] In response to the above technical problems, the present invention proposes a waterproof thermostat, which solves the problem of poor waterproof performance of traditional thermostats through the precise coordination of the multi-layer shell structure, providing strong guarantee for the efficient and stable operation of the air-conditioning system.

[0042] The present invention discloses a waterproof thermostat, such as Figures 1 to 9 As shown, it includes an outer shell 1 and a fixed plate 2, an insulating plate 3 and a mounting seat 4 arranged therein, the insulating plate 3 is arranged between the fixed plate 2 and the mounting seat 4, and a first pin 24 and a second pin 45 are respectively provided on the fixed plate 2 and the mounting seat 4; a static contact 22 and a moving contact 43 are respectively provided on the fixed plate 2 and the mounting seat 4, and a temperature sensing element 44 is also provided in the mounting seat 4, and the moving contact 43 is arranged on the temperature sensing element 44 corresponding to the static contact 22; the outer shell 1 includes an outer shell 11, an inner support sleeve 12 and an inner shell 13, the inner support sleeve 12 is sleeved on the inner shell 13, the outer shell 11 is sleeved on the inner support sleeve 12, the inner shell 13 is sleeved on the mounting seat 4, and the fixed plate 2 is arranged on the mounting seat 4 through the insulating plate 3.

[0043] In the thermostat structure of the present invention, the outer shell 1 comprises a three-layer structure: an outer shell 11, an inner support sleeve 12, and an inner shell 13. These layers are nested together, enhancing the overall structural strength while forming multiple waterproof barriers. The inner shell 13 tightly wraps around the mounting base 4, providing a preliminary protective space for the internal electrical components. The inner support sleeve 12, acting as an intermediate layer, not only further isolates the outer shell from external moisture but also, through its precise coordination with the inner shell 13 and outer shell 11, ensures the sealing of the entire outer shell 1, enhancing the waterproof performance and stability of the thermostat.

[0044] Inside the thermostat, the fixed plate 2 and mounting base 4 are separated by an insulating plate 3, preventing short circuits and providing a stable foundation for the installation of the first pin 24 and the second pin 45. The first pin 24 and the second pin 45, respectively located on the fixed plate 2 and mounting base 4, serve as connection points between the thermostat and the external circuit, ensuring reliable and convenient electrical connection. Furthermore, the static contact 22 is fixed to the fixed plate 2, while the moving contact 43 is connected to the temperature-sensing element 44. As the temperature changes, it abuts or separates from the static contact 22, triggering the thermostat's switching action.

[0045] In this embodiment, if Figures 4 to 6 As shown, a first mounting groove 41 is provided on the mounting seat 4, and the temperature sensing element 44 includes a bimetallic strip 441 provided in the first mounting groove 41; a first raised surface 42 is correspondingly formed on the side of the mounting seat 4 facing away from the first mounting groove 41, and the first raised surface 42 is in contact with the bottom inner wall of the inner shell 13.

[0046] Furthermore, a boss 411 and a mounting platform 412 are provided in the first mounting groove 41 . One end of the bimetallic strip 441 is fixed to the mounting platform 412 via a pin 413 . The boss 411 is provided corresponding to the middle portion of the bimetallic strip 441 .

[0047] During the specific implementation process, a first raised surface 42 is formed on the side of the mounting seat 4 facing away from the first mounting groove 41, and is tightly fitted with the bottom inner wall of the inner shell 13, which not only enhances the stability of the mounting seat 4 in the inner shell 13, but also further improves the heat transfer quality from the inner shell 13 to the temperature sensing element 44 in the first mounting groove 41.

[0048] One end of the bimetallic strip 441 in the first mounting groove 41 is firmly fixed to the mounting platform 412 via a pin 413, ensuring the stability of the bimetallic strip 441 during operation of the thermostat. The boss 411 is arranged corresponding to the middle part of the bimetallic strip 441, providing a stable support point for the bimetallic strip 441. At room temperature, the bimetallic strip 441 remains straight under the support of the boss 411, so that the moving contact 43 on it is in close contact with the static contact 22, and the thermostat is in the closed state. When the temperature rises, the bimetallic strip 441 bends due to the heat, causing the moving contact 43 to separate from the static contact 22, thereby triggering the power-off action of the thermostat and achieving precise temperature control.

[0049] As a preferred embodiment of the above, Figure 2 and Figure 3 As shown, the inner shell 13 is fitted against the inner wall of the inner support sleeve 12. An opening 121 is provided on the bottom surface of the inner support sleeve 12 at a position corresponding to the first raised surface 42. The top of the inner support sleeve 12 abuts against the inner wall of the outer shell 11 via a support block 122. The opening 121 of the inner support sleeve 12 engages with the inner wall of the outer shell 11. The inner support sleeve 12 is made of an insulating material, and the outer shell 11 is made of copper.

[0050] The length of the mounting seat 4 is smaller than the internal depth of the inner shell 13, the length of the inner shell 13 is smaller than the internal depth of the inner support sleeve 12, and the length of the inner support sleeve 12 is smaller than the internal depth of the outer shell 11. Glue seals are provided at the ports of the inner shell 13, the inner support sleeve 12 and the outer shell 11.

[0051] The inner support sleeve 12 is made of insulating material, so it is inferior to metal material in terms of thermal conductivity. By setting an opening 121 at the bottom surface of the inner support sleeve 12 corresponding to the first raised surface 42, and the outer shell 11 is set to copper material, the heat transfer path is optimized, and the ambient temperature is conveniently transferred to the temperature sensing element 44 of the mounting seat 4 through the outer shell 11, the opening 121 of the inner support sleeve 12 and the inner shell 13.

[0052] like Figure 8 As shown, the inner support sleeve 12 is constructed of an insulating material, effectively isolating the electrical connection between the inner shell 13 and the outer shell 11, enhancing the thermostat's safety. The outer shell 11 is constructed of copper, leveraging its excellent thermal and electrical conductivity to facilitate rapid heat transfer and dissipation. Seals are installed at the ports of the inner shell 13, inner support sleeve 12, and outer shell 11, effectively preventing the intrusion of moisture and dust, enhancing the thermostat's waterproof performance and sealing.

[0053] In this embodiment, if Figure 6 and Figure 9 As shown, a second mounting groove 21 is provided on the fixed plate 2, and the static contact 22 is provided in the second mounting groove 21; a through opening 31 is opened on the insulating plate 3 corresponding to the bimetallic strip 441, and the first mounting groove 41 cooperates with the through opening 31 and the second mounting groove 21 to form a working chamber 5.

[0054] The insulating plate 3 is used to isolate the electrical connection between the fixing plate 2 and the mounting base 4, preventing safety hazards such as short circuits and electric shock. A through-hole 31 is provided on the insulating plate 3 at a location corresponding to the bimetallic strip 441. This through-hole 31 allows the bimetallic strip 441 to pass freely and connect with the movable contact 43. The shape and size of the through-hole 31 generally match those of the bimetallic strip 441, ensuring that the bimetallic strip 441 can pass through the through-hole 31 smoothly and achieve a reliable connection with the movable contact 43.

[0055] In this embodiment, limit plates 32 are positioned opposite each other along the length of the insulating plate 3. The limit plates 32 include a vertical plate 321 and a horizontal plate 322 that mate with the edges of the fixed plate 2. Limiting hems 46 are positioned opposite each other along the length of the mounting base 4. The limit hems 46 engage with the edges of the length of the insulating plate 3. A second raised surface 23 is formed on the side of the fixed plate 2 facing away from the second mounting groove 21. The horizontal plate 322 includes a first horizontal portion 322a and a second horizontal portion 322b that are arranged in parallel. The first horizontal portion 322a and the second horizontal portion 322b mate with the fixed plate 2 and the second raised surface 23 thereon, respectively. The mounting base 4 engages with the inner wall of the inner shell 13, forming a limit hole 323 between the two second horizontal portions 322b. A limit block 131 is positioned on the inner wall of the inner shell 13, corresponding to the limit hole 323.

[0056] The insulating plate 3 not only serves as an electrical isolation layer, but also has limit plates 32 arranged on both sides of its length to provide structural support and positioning. The limit plates 32 are composed of vertical plates 321 and horizontal plates 322, which limit the width and thickness of the fixed plate 2. The limit folds 46 arranged on both sides of the mounting seat 4 are used to install and position the insulating plate 3 and the fixed plate 2 therein. Figure 7 and Figure 9 As shown, the installation and positioning of the mounting seat 4 in the inner shell 13 is achieved through the matching limiting holes 323 and the limiting blocks 131 .

[0057] Those skilled in the art should understand that the present invention is not limited to the above-described embodiments. The above-described embodiments and the specification are merely illustrative of the principles of the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and improvements are intended to fall within the scope of the present invention. The scope of protection claimed in the present invention is defined by the appended claims and their equivalents.

Claims

1. A waterproof thermostat, characterized in that: include: A housing and a fixing plate, an insulating plate and a mounting seat arranged therein, wherein the insulating plate is arranged between the fixing plate and the mounting seat, and a first pin and a second pin are respectively arranged on the fixing plate and the mounting seat; A static contact and a moving contact are respectively provided on the fixing plate and the mounting base, and a temperature sensing element is further provided in the mounting base, and the moving contact is provided on the temperature sensing element corresponding to the static contact; The outer shell includes an outer shell, an inner support sleeve and an inner shell. The inner support sleeve is sleeved on the inner shell, the outer shell is sleeved on the inner support sleeve, the inner shell is sleeved on the mounting seat, and the fixing plate is arranged on the mounting seat through the insulating plate.

2. The waterproof thermostat according to claim 1, characterized in that: A first mounting groove is provided on the mounting seat, and the temperature sensing element includes a bimetallic strip provided in the first mounting groove; A first convex surface is correspondingly formed on a side of the mounting seat facing away from the first mounting groove, and the first convex surface is in contact with the bottom inner wall of the inner shell.

3. The waterproof thermostat according to claim 2, characterized in that: A boss and a mounting platform are provided in the first mounting groove. One end of the bimetallic strip is fixed to the mounting platform via a pin. The boss is provided corresponding to the middle portion of the bimetallic strip.

4. The waterproof thermostat according to claim 2, characterized in that: The inner shell is fitted with the inner wall of the inner sleeve, and an opening is provided on the bottom surface of the inner sleeve at a position corresponding to the first raised surface; The top of the inner support sleeve is in contact with the inner wall of the outer shell through a support block, and the open end of the inner support sleeve is engaged with the inner wall of the outer shell.

5. The waterproof thermostat according to claim 4, characterized in that: The length of the mounting seat is smaller than the internal depth of the inner shell, the length of the inner shell is smaller than the internal depth of the inner support sleeve, the length of the inner support sleeve is smaller than the internal depth of the outer shell, and glue seals are provided at the ports of the inner shell, the inner support sleeve and the outer shell.

6. The waterproof thermostat according to claim 4, characterized in that: The inner support sleeve is configured to be made of insulating material, and the outer shell is configured to be made of copper.

7. The waterproof thermostat according to claim 2, characterized in that: A second mounting groove is provided on the fixing plate, and the static contact is provided in the second mounting groove; A through opening is provided on the insulating plate corresponding to the bimetallic strip, and the first mounting groove cooperates with the through opening and the second mounting groove to form a working cavity.

8. The waterproof thermostat according to claim 7, characterized in that: Limiting plates are arranged on both sides of the length of the insulating plate, and the limiting plates include vertical plates and horizontal plates that fit with the edges of the fixing plates; Limiting folds are relatively arranged on both sides of the length of the mounting seat, and the limiting folds are engaged with the length edges of both sides of the insulating plate.

9. The waterproof thermostat according to claim 8, characterized in that: A second raised surface is formed on the side of the fixed plate facing away from the second mounting groove. The horizontal plate includes a first horizontal portion and a second horizontal portion arranged in parallel. The first horizontal portion and the second horizontal portion are respectively in contact with the fixed plate and the second raised surface thereon.

10. The waterproof thermostat according to claim 9, characterized in that: The mounting seat is engaged with the inner wall of the inner shell, and a limiting hole is formed between the two second horizontal parts. A limiting block is provided on the inner wall of the inner shell corresponding to the limiting hole.

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