CN215299133U - Full-sealing structure of temperature limiter for electric heater and temperature limiter - Google Patents
Full-sealing structure of temperature limiter for electric heater and temperature limiter Download PDFInfo
- Publication number
- CN215299133U CN215299133U CN202121265295.7U CN202121265295U CN215299133U CN 215299133 U CN215299133 U CN 215299133U CN 202121265295 U CN202121265295 U CN 202121265295U CN 215299133 U CN215299133 U CN 215299133U
- Authority
- CN
- China
- Prior art keywords
- temperature limiter
- sealing
- shell
- bottom cover
- foaming
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Gasket Seals (AREA)
Abstract
The utility model relates to a totally enclosed construction and temperature limiter of temperature limiter for electric heater, totally enclosed construction includes: the bottom of the shell is provided with a mounting hole; the upper surface of the bottom cover extends upwards to form a connecting part matched with the mounting hole, and the connecting part is inserted into the mounting hole, so that the connecting surface between the shell and the bottom cover is a step surface; foaming sealing ring, foaming sealing ring cover are established in the bottom outside of connecting portion, and the foaming sealing ring includes: the body, the inside foaming chamber that is formed with of body, the surface of body be formed with the communicating exhaust hole in foaming chamber, the upper surface of body upwards extends and forms first outer edge, and the lateral surface outwards extends and forms the outer edge of second. The temperature limiter comprises the fully sealed structure. The temperature limiter has good sealing performance, the sealing performance of the connecting position of the shell and the bottom cover is good, water drops and water vapor can be effectively prevented from entering the shell, the circuit elements inside the shell can be effectively protected, the service life of the temperature limiter is prolonged, and the failure rate is reduced.
Description
Technical Field
The utility model relates to an electric heater technical field, concretely relates to full seal structure and temperature limiter of temperature limiter for electric heater.
Background
The electric heater is usually equipped with a temperature limiter for limiting the temperature of the electric heater to prevent the electric heater from overheating. The temperature limiter mainly comprises a shell, a bottom cover and a corresponding circuit structure, wherein the circuit structure is arranged inside the shell, and the bottom cover is arranged at the bottom of the shell to seal the shell.
In the use process of the existing electric heater, a customer generally feeds back the problems that the temperature limiter is easy to damage and has high failure rate, the applicant recovers and dismantles the damaged temperature limiter, the main reason that the temperature limiter is damaged is found to be rusting and corrosion of internal circuit parts, and further observation shows that the humidity of the working environment of the electric heater can be high because the electric heater can operate in the environment with high humidity and the heat emitted by the electric heater during heating can accelerate the evaporation of liquid (such as condensed water generated in the operation process of an air conditioner) in the environment. The temperature limiter provided by the existing electric heater does not have an effective sealing structure, the shell and the bottom cover are connected through a simple bolt, when the temperature limiter works in a working environment with high humidity along with the electric heater, water vapor and water drops easily permeate into the shell along the gap between the shell and the bottom cover to damage an internal circuit structure, and therefore the sealing performance of the temperature limiter for the existing electric heater is insufficient, and the main reason for high fault rate of the temperature limiter is caused.
SUMMERY OF THE UTILITY MODEL
In order to solve the problems in the prior art, an object of the present disclosure is to provide a fully sealed structure of a temperature limiter for an electric heater, and another object is to provide a temperature limiter. The temperature limiter has good sealing performance, the sealing performance of the connecting position of the shell and the bottom cover is good, water drops and water vapor can be effectively prevented from entering the shell, the circuit elements inside the shell can be effectively protected, the service life of the temperature limiter is prolonged, and the failure rate is reduced.
The utility model discloses a totally enclosed structure of temperature limiter for electric heater, include:
the bottom of the shell is provided with a mounting hole for mounting a bottom cover;
the upper surface of the bottom cover extends upwards to form a connecting part matched with the mounting hole, and the connecting part is inserted into the mounting hole, so that the connecting surface between the shell and the bottom cover is a step surface;
foaming sealing ring, foaming sealing ring cover is established the bottom outside of connecting portion, foaming sealing ring includes:
the body, the inside foaming chamber that is formed with of body, the surface of body be formed with the communicating exhaust hole in foaming chamber, the upper surface of body upwards extends and forms first outer edge, and the lateral surface outwards extends and forms the outer edge of second.
Preferably, the extending direction of the first outer edge is perpendicular to the extending direction of the second outer edge.
Preferably, one surface of the first outer edge far away from the connecting part is a wavy surface continuously extending along the first outer edge, and one surface of the second outer edge far away from the bottom cover is a wavy surface continuously extending along the second outer edge.
Preferably, the bottom of the housing is formed with a sealing portion around the mounting hole at an outer side of the mounting hole, the sealing portion having a tapered cross section;
the upper surface of the bottom cover is provided with a sealing groove matched with the sealing part at a position corresponding to the sealing part, and the sealing part is inserted into the sealing groove.
Preferably, an elastic sealing layer is coated on the outer surface of the sealing part or the inner surface of the sealing groove.
Preferably, the fully sealed structure of the temperature limiter for an electric heater further includes:
the connecting piece is arranged between the shell and the bottom cover in a penetrating way and is used for connecting the shell and the bottom cover;
and the sealing washer is sleeved outside the connecting piece and is positioned at a position close to the end part of the connecting piece.
Preferably, the connecting piece is a bolt, and the sealing washer is a rubber washer.
A temperature limiter adopts the fully sealed structure.
The full-sealing structure of the temperature limiter for the electric heater and the temperature limiter have the advantages that the foaming sealing ring is arranged between the shell and the bottom cover, the hollow foaming cavity is formed inside the foaming sealing ring, the upper surface and the outer side surface respectively extend to form the first outer edge and the second outer edge, when the bottom cover is connected with the shell, the bottom cover and the shell are close to each other, the clamping force formed between the bottom cover and the shell extrudes the foaming sealing ring, the foaming cavity is extruded from the outside, the air inside the foaming cavity is gradually exhausted outwards through the exhaust holes, the foaming cavity is gradually extruded to be in a flat state, in the process, the body gradually extends outwards and deforms, the first outer edge and the second outer edge are simultaneously extruded outwards, the first outer edge and the second outer edge are simultaneously extruded by the clamping force between the shell and the bottom cover to extend outwards and are tightly attached to the connecting surface of the shell and the bottom cover, and waterproof sealing between the shell and the bottom cover is realized. This is disclosed through set up the foaming sealing ring between shell and bottom, utilizes expanded material's characteristic, through the structure on foaming chamber, first outer edge and second outer edge, makes this disclosure full seal structure's sealing performance far superior to ordinary sealing ring, make shell and bottom hookup location's leakproofness good, can prevent effectively inside drop of water and steam get into the shell, can effectively protect the inside circuit element of shell, the life of extension temperature limiter reduces the fault rate.
Drawings
Fig. 1 is one of the structural schematic diagrams (the state that the outer shell is separated from the bottom cover) of the fully sealed structure of the temperature limiter for the electric heater according to the present disclosure;
FIG. 2 is a schematic diagram of the structure at position A in FIG. 1;
fig. 3 is a second schematic structural view (a state where the outer case is connected to the bottom cover) of the fully sealed structure of the temperature limiter for an electric heater according to the present disclosure;
fig. 4 is a bottom view of a fully sealed structure of a temperature limiter for an electric heater according to the present disclosure.
Description of reference numerals: 1-shell, 11-mounting hole, 12-sealing part, 2-bottom cover, 21-connecting part, 22-sealing groove, 3-foaming sealing ring, 31-body, 311-foaming cavity, 32-first outer edge, 33-second outer edge, 4-connecting part and 5-sealing gasket.
Detailed Description
As shown in fig. 1 to 4, a fully sealed structure of a temperature limiter for an electric heater according to the present disclosure includes:
the shell 1 is a hollow cylindrical structure made of metal materials, the bottom of the shell 1 is recessed upwards to form a cylindrical mounting hole 11 for mounting the bottom cover 2, and the upper end of the mounting hole 11 can be used for mounting a circuit structure of the temperature limiter.
The foaming sealing ring 3 is specifically a ring made of a foaming material, such as foaming sponge, the inner diameter of the ring is matched with the outer diameter of the connecting portion 21, and the foaming sealing ring 3 is sleeved on the outer side of the bottom of the connecting portion 21. Referring to fig. 2 in detail, a cross-sectional view of the foamed sealing ring 3 is shown in fig. 2, and the cross-section of the foamed sealing ring is approximately "L" shaped, and includes a body 31, where the body 31 is located at an inflection point of the "L" shaped structure, that is, at an inner edge of the body 31. The inner portion of the body 31 is formed with a foaming cavity 311, the foaming cavity 311 extends in the same direction as the body 31, specifically, due to the material property of the foaming material, the foaming cavity 311 can be formed in the inner portion of the body 31, and the foaming cavity 311 can be kept in an open state by the elasticity of the foaming material without being subjected to an external force. The outer surface of the body 31 is formed with a plurality of discharge holes (not shown) identical to the foaming chamber 311 for discharging the gas inside the foaming chamber 311. The upper surface of body 31 upwards extends and forms first outer edge 32, and is concrete, and first outer edge 32 is annular sheet structure, upwards extends for closely laminating between the medial surface of connecting hole and the lateral surface of spliced pole, make two sides connect closely. The outer side surface of the body 31 extends outwards to form a second outer edge 33, and the second outer edge 33 is also in an annular sheet structure and is used for being tightly attached between the bottom surface of the shell 1 and the upper surface of the bottom cover 2, so that the two surfaces are tightly connected.
This disclosure full seal structure realize sealedly like this specifically, establish the bottom outside at connecting portion 21 with foaming sealing ring 3 like the cover that fig. 1 shows when the assembly, in some specific embodiments, because foaming sealing ring 3 has certain elasticity, can process the internal diameter of foaming sealing ring 3 slightly less than the external diameter of connecting portion 21, can strut foaming sealing ring 3 and establish the cover when the cover is established foaming sealing ring 3 to it is inseparable to make foaming sealing ring 3 establish with connecting portion 21 cover. Then the shell 1 is moved to the upper part of the bottom cover 2, the mounting hole 11 is aligned with the connecting part 21, the shell 1 is vertically moved downwards, the shell 1 is gradually close to the bottom cover 2, in the process, the inner edge of the mounting hole 11 is gradually close to the foaming sealing ring 3 until the inner edge of the mounting hole 11 is contacted with the position of the body 31 of the foaming sealing ring 3, the clamping force formed between the shell 1 and the bottom cover 2 presses the foaming sealing ring 3, the foaming cavity 311 is externally pressed, the air in the inner part is gradually exhausted outwards through the exhaust hole, the foaming cavity 311 is gradually pressed to be in a flat state, in the process, the body 31 gradually extends outwards and deforms, and simultaneously presses the first outer edge 32 and the second outer edge 33 outwards, the first outer edge 32 and the second outer edge 33 are simultaneously pressed by the clamping force between the shell 1 and the bottom cover 2 to extend outwards, the first outer edge 32 is pressed to be tightly attached to the inner side surface of the connecting hole and the outer side surface of the connecting part 21, the second outer edge 33 is extruded to be tightly attached to the bottom surface of the shell 1 and the upper surface of the bottom cover 2, so that two connecting surfaces between the shell 1 and the bottom cover 2 are tightly attached and sealed through the first outer edge 32 and the second outer edge 33 respectively, the sealing performance of the fully-sealed structure disclosed by the invention is far superior to that of a common sealing ring, the sealing performance of the connecting position of the shell 1 and the bottom cover 2 is good, water drops and water vapor can be effectively prevented from entering the shell 1, the circuit elements inside the shell 1 can be effectively protected, the service life of the temperature limiter is prolonged, and the failure rate is reduced.
Furthermore, in this embodiment, the extending direction of the first outer edge 32 is perpendicular to the extending direction of the second outer edge 33, so that the first outer edge 32 and the second outer edge 33 can be attached to the step surface structure, and the waterproof sealing effect of the foam sealing ring 3 is better.
Furthermore, in this embodiment, a surface of the first outer edge 32 away from the connecting portion 21 is a wavy surface continuously extending along the first outer edge 32, a surface of the second outer edge 33 away from the bottom cover 2 is a wavy surface continuously extending along the second outer edge 33, in some embodiments, the foamed sealing ring 3 is fixed to the bottom outside of the connecting portion 21 by gluing, during the assembly of the outer shell 1 and the bottom cover 2, the adhesive has a certain fixing effect, so the deformation degree of the other side is often larger, therefore set up foretell two faces into the wave face, the wave face is at the in-process with shell 1 contact, and the middle part of wave structure can be deformed to closely laminating to the surface with shell 1, and the wave face can make first outer edge 32, the second outer edge 33 and the surface laminating of shell 1 inseparabler, makes the waterproof sealing effect of foaming sealing ring 3 better.
Further, in this embodiment, the bottom of the housing 1 is formed with the sealing portion 12 surrounding the mounting hole 11 outside the mounting hole 11, the cross section of the sealing portion 12 is tapered, the upper surface of the bottom cover 2 is provided with the sealing groove 22 adapted to the sealing portion 12 at a position corresponding to the sealing portion 12, when the housing 1 is assembled on the bottom cover 2, the sealing portion 12 is inserted into the sealing groove 22, so as to form a tapered sealing structure outside the mounting hole 11 and the connecting portion 21, the tapered sealing structure can serve as a first sealing structure of the temperature limiter, waterproof sealing can be performed preliminarily, the position where water vapor enters the mounting hole 11 can be effectively avoided, the service life of the foam sealing ring 3 can be prolonged, and the waterproof sealing effect can be more durable.
Further, in the present embodiment, the outer surface of the sealing portion 12 or the inner surface of the sealing groove 22 is covered with an elastic sealing layer, and the elastic sealing layer may be made of a common sealing material such as rubber, so as to enhance the sealing performance of the conical sealing structure.
Further, in this embodiment, the fully sealed structure further includes:
connecting piece 4, connecting piece 4 wear to locate between shell 1 and the bottom 2, and shell 1 all extends to both sides with bottom 2 and forms the engaging lug, sets up the through-hole of looks adaptation on the engaging lug, and connecting piece 4 wears to locate in the through-hole, is connected shell 1 with bottom 2.
And the sealing washer 5 is sleeved on the outer side of the connecting piece 4 and is positioned at a position close to the end part of the connecting piece 4, and the sealing washer 5 is used for sealing the connecting position of the connecting piece 4, so that the overall sealing performance of the temperature limiter is improved.
Further, in this embodiment, the connecting piece 4 chooses the bolt for use, and sufficient locking force can be exerted to the bolt to fully extrude foaming sealing ring 3 and form sealedly, easy dismounting simultaneously, it is with low costs. The rubber gasket is selected for the sealing gasket 5, the rubber gasket can achieve a good sealing effect, the component cost is low, and the assembly is convenient.
The embodiment also provides a temperature limiter, which comprises the fully-sealed structure and has the advantages of good sealing performance, long service life and low failure rate.
In the description of the present disclosure, it is to be understood that the orientation or positional relationship indicated by the directional terms such as "front, rear, upper, lower, left, right", "lateral, vertical, horizontal" and "top, bottom", etc., are generally based on the orientation or positional relationship shown in the drawings, and are used for convenience in describing and simplifying the present disclosure, and in the absence of a contrary explanation, these directional terms are not intended to indicate and imply that the device or element being referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore, should not be considered as limiting the scope of the present disclosure.
Various other modifications and changes may be made by those skilled in the art based on the above-described technical solutions and concepts, and all such modifications and changes should fall within the scope of the claims of the present disclosure.
Claims (8)
1. The utility model provides a full seal structure of temperature limiter for electric heater which characterized in that includes:
the bottom of the shell is provided with a mounting hole for mounting a bottom cover;
the upper surface of the bottom cover extends upwards to form a connecting part matched with the mounting hole, and the connecting part is inserted into the mounting hole, so that the connecting surface between the shell and the bottom cover is a step surface;
foaming sealing ring, foaming sealing ring cover is established the bottom outside of connecting portion, foaming sealing ring includes:
the body, the inside foaming chamber that is formed with of body, the surface of body be formed with the communicating exhaust hole in foaming chamber, the upper surface of body upwards extends and forms first outer edge, and the lateral surface outwards extends and forms the outer edge of second.
2. The fully sealed structure of the temperature limiter for an electric heater according to claim 1, wherein the extending direction of the first outer rim is perpendicular to the extending direction of the second outer rim.
3. The hermetically sealed construction of a temperature limiter for an electric heater according to claim 1, wherein a face of the first outer rim remote from the connecting portion is a wavy face continuously extending along the first outer rim, and a face of the second outer rim remote from the bottom cover is a wavy face continuously extending along the second outer rim.
4. The hermetically sealed structure of the temperature limiter for an electric heater according to claim 1, wherein the bottom of the housing is formed at an outer side of the mounting hole with a sealing portion around the mounting hole, the sealing portion having a tapered cross section;
the upper surface of the bottom cover is provided with a sealing groove matched with the sealing part at a position corresponding to the sealing part, and the sealing part is inserted into the sealing groove.
5. The hermetically sealed structure of a temperature limiter for an electric heater according to claim 4, wherein an elastic sealing layer is coated on an outer surface of the sealing portion or an inner surface of the sealing groove.
6. The fully sealed structure of the temperature limiter for an electric heater according to claim 1, further comprising:
the connecting piece is arranged between the shell and the bottom cover in a penetrating way and is used for connecting the shell and the bottom cover;
and the sealing washer is sleeved outside the connecting piece and is positioned at a position close to the end part of the connecting piece.
7. The fully sealed structure of the temperature limiter for the electric heater according to claim 6, wherein the connecting member is a bolt and the sealing washer is a rubber washer.
8. A temperature limiter, characterized by the use of a fully sealed structure according to any one of claims 1 to 7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121265295.7U CN215299133U (en) | 2021-06-07 | 2021-06-07 | Full-sealing structure of temperature limiter for electric heater and temperature limiter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121265295.7U CN215299133U (en) | 2021-06-07 | 2021-06-07 | Full-sealing structure of temperature limiter for electric heater and temperature limiter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215299133U true CN215299133U (en) | 2021-12-24 |
Family
ID=79514620
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121265295.7U Active CN215299133U (en) | 2021-06-07 | 2021-06-07 | Full-sealing structure of temperature limiter for electric heater and temperature limiter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215299133U (en) |
-
2021
- 2021-06-07 CN CN202121265295.7U patent/CN215299133U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| WO2007015434A1 (en) | Pipe fitting | |
| CN209183611U (en) | Battery modules | |
| US7222678B2 (en) | Sprinkler head | |
| CN215299133U (en) | Full-sealing structure of temperature limiter for electric heater and temperature limiter | |
| CN113611964A (en) | Steel gasket, lithium ion battery and sealed container with sealing function | |
| CN114678652B (en) | Single battery and battery pack | |
| CN211719626U (en) | Battery cover plate and lithium ion battery | |
| CN214813246U (en) | Air knife | |
| CN215260508U (en) | Sealing member and have its tuber pipe machine | |
| CN214505684U (en) | Battery pack lower shell and battery pack with same | |
| CN209781932U (en) | novel leakage-proof air pipe | |
| CN214928825U (en) | Vehicle-mounted air conditioner | |
| CN217422525U (en) | Pipeline joint structure, electric water heater inner container and electric water heater | |
| JPH05174805A (en) | Improvement in battery | |
| CN217209872U (en) | Water heater shell and water heater | |
| CN218440620U (en) | Gasket with good sealing effect | |
| CN216201480U (en) | Clamping-pressing type pipe fitting joint | |
| CN212934481U (en) | Micro differential pressure switch with external protection | |
| CN213870348U (en) | Explosion-proof centrifugal fire control fan | |
| CN211376724U (en) | Battery box | |
| CN210345931U (en) | Breathable waterproof rubber plug | |
| CN219913497U (en) | Water tank assembly and water heater | |
| CN213072281U (en) | Motor casing, in-wheel motor and car | |
| CN219605855U (en) | Bearing seal ring with good dustproof effect | |
| CN220688128U (en) | One-way valve sealing device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |