Waterproof sealed thermal protector

Abstract

The utility model discloses a waterproof sealed thermal protector, comprising a housing and an upper cover covering the housing to form a seal, the housing is provided with a lower opening, the opening is provided with a positioning groove, the positioning groove is internally provided with a terminal extending to the outside of the housing, the waterproof sealed thermal protector also comprises a mounting rack, the center of the mounting rack is provided with a fixing hole, and the fixing hole is provided with a through hole. The edge of the mounting rack relative to the fixing hole bends and extends upwards to form a sealing ring, the inner wall of the sealing ring is in interference fit with the upper cover, two outer sides of the mounting rack are provided with fixing lugs, a sealing glue layer is arranged between the positioning groove and the terminal, and the edge of the mounting rack relative to the fixing hole extends downwards to form a buckle ring. The buckle ring is arranged outside the shell in an interference connection mode. The utility model belongs to the technical field of protectors, and particularly provides a waterproof sealed thermal protector, which is used for solving the problems in the prior art that the distance between a fixing lug and a sealing cover is fixed and invariable when the fixing lug is installed and used, the use flexibility is low, the waterproof performance is poor, and the service life is influenced.

Description

Technical Field

[0001] The utility model belongs to the technical field of protectors, in particular to a waterproof and sealed thermal protector. Background Art

[0002] Thermal protectors are essential electrical components for controlling the temperature of electrical appliances. Conventional thermal protectors are fixed mainly through fixing ears.

[0003] The following disadvantages exist when using fixed ears for fixation:

[0004] 1. First, the distance between the surface of the fixing ear and the surface of the cover is fixed and cannot be changed, and cannot be flexibly applied to various electrical appliances.

[0005] 2. Moreover, the existing thermal protector has the disadvantages of poor waterproof performance and short service life, which cannot meet the needs of use. Utility Model Content

[0006] In view of the above situation, in order to overcome the defects of the prior art, the utility model provides a waterproof and sealed thermal protector, which is used to solve the problems in the prior art that the distance between the fixed ear and the cover is fixed and cannot be changed during installation and use, the flexibility of use is low, and the waterproof performance is poor, which affects the service life.

[0007] The technical solutions adopted in this application are as follows:

[0008] The present invention provides a waterproof and sealed thermal protector, comprising a housing and an upper cover which is covered on the housing to form a seal;

[0009] The housing is provided with a lower opening, the lower opening is provided with a positioning groove, and a terminal is installed in the positioning groove and extends to the outside of the housing;

[0010] Also includes: a mounting frame and a sealing ring;

[0011] A fixing hole is provided at the center of the mounting frame, and a sealing ring is provided on the mounting frame that is bent upward and extended about the edge of the fixing hole. The sealing ring is installed on the outside of the upper cover, and the inner wall of the sealing ring is interference fit with the upper cover. Fixing ears are installed on both outer sides of the mounting frame, and a mounting hole is provided on each group of the fixing ears; a sealing rubber layer is provided between the positioning groove and the terminal.

[0012] In a further solution, a snap ring is provided on the mounting frame extending downward from the edge of the fixing hole, the snap ring is provided in an inverted truncated cone shape, and the snap ring is interference-connected to the outside of the shell.

[0013] As a preferred solution, the sealing ring is truncated into a cone shape, the sealing ring is interference-connected with the upper cover, the vertical height of the sealing ring is greater than the vertical height of the snap ring, and the upper and lower limits are used to achieve an adjustment effect of fixing the distance.

[0014] Preferably, the housing is provided with an axial protrusion in the positioning groove, and the terminal is installed in the axial protrusion.

[0015] Furthermore, epoxy resin is poured between the positioning groove and the terminal, and epoxy resin is poured between the shell and the upper cover, which plays a role of waterproof sealing.

[0016] As a preferred solution, the positioning grooves are symmetrically arranged about the lower opening of the shell, and the terminals are respectively arranged in the positioning grooves on both sides, including a first terminal and a second terminal, and holes are opened at the ends of the first terminal and the second terminal.

[0017] The beneficial effects achieved by the utility model using the above structure are as follows:

[0018] 1. By respectively arranging a sealing ring and a snap ring on the upper and lower sides of the mounting frame, the sealing ring is connected with the upper cover by interference fit, and the snap ring is connected with the shell body by interference fit. During installation, due to the interference fit, it is not easy to rotate, which can improve the efficiency of installation. At the same time, due to the interference fit, the sealing ring and the upper cover, the snap ring and the shell body, and the upper cover and the shell body are relatively fixed, and have a certain deformation function. During installation, the distance between the surface of the fixed ear and the surface of the upper cover can be fine-tuned.

[0019] 2. The sealing ring is connected to the upper cover by interference fit, the snap ring is connected to the shell by interference fit, epoxy resin is poured between the positioning groove and the terminal, epoxy resin is poured between the shell and the upper cover, and a sealing structure is set at the contact point to achieve a good waterproof sealing effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 A schematic diagram of the overall structure of a waterproof and sealed thermal protector provided by this solution;

[0021] Figure 2 A three-dimensional diagram of a waterproof and sealed thermal protector provided by the present invention;

[0022] Figure 3 for Figure 1 Schematic diagram of the bottom structure;

[0023] Figure 4 This is a partial structural perspective view of the shell and upper cover in this solution.

[0024] The meanings of the numbers in the accompanying drawings are as follows:

[0025] 1. Shell, 2. Upper cover, 3. Terminal, 4. Mounting frame, 5. Sealing ring, 6. Snap ring;

[0026] 11. positioning groove, 12. axial protrusion;

[0027] 31, first terminal, 32, second terminal;

[0028] 41. fixing hole, 42. fixing ear, 43. mounting hole. DETAILED DESCRIPTION

[0029] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention. Example 1

[0030] Please refer to Figure 1-4 As shown, this embodiment provides a waterproof and sealed thermal protector, including a shell 1 and an upper cover 2 that covers the shell 1 to form a seal, wherein the shell 1 is provided with a lower opening, and a positioning groove 11 is provided at the lower opening, and a terminal 3 is installed in the positioning groove 11 and extends to the outside of the shell 1.

[0031] Combination Figure 4 As shown, the housing 1 is provided with an axial protrusion 12 in the positioning groove 11, and the terminal 3 is installed in the axial protrusion 12. The positioning groove 11 is symmetrically arranged about the lower opening of the housing 1, and the terminals 3 are respectively arranged in the positioning grooves 11 on both sides, including a first terminal 31 and a second terminal 32, and a hole groove is opened at the end of the first terminal 31 and the second terminal 32.

[0032] like Figure 1 and Figure 2 As shown, the present solution also includes a mounting frame 4, a fixing hole 41 is opened at the center of the mounting frame 4, a sealing ring 5 is bent and extended upward about the edge of the fixing hole 41, the sealing ring 5 is installed on the outside of the upper cover 2, and the inner wall of the sealing ring 5 is interference fit with the upper cover 2, and fixing ears 42 are installed on both outer sides of the mounting frame 4, and each group of fixing ears 42 is opened with a mounting hole 43.

[0033] like Figure 2 As shown, the mounting frame 4 is provided with a snap ring 6 extending downward from the edge of the fixing hole 41 . The snap ring 6 is provided in an inverted truncated cone shape and is interference-connected to the outside of the housing 1 .

[0034] As a preferred solution, the sealing ring 5 is truncated into a cone shape, and is interference-connected with the upper cover 2. The vertical height of the sealing ring 5 is greater than the vertical height of the snap ring 6, and the upper and lower limit positions are used to achieve a fixed distance adjustment effect.

[0035] When using the utility model, by respectively arranging a sealing ring 5 and a snap ring 6 on the upper and lower sides of the mounting frame 4, the sealing ring 5 is interference-connected with the upper cover 2, and the snap ring 6 is interference-connected with the shell 1 below. During installation, due to the interference fit, it is not easy to rotate, which can improve the efficiency of installation. At the same time, due to the interference setting, the sealing ring 5 and the upper cover 2, the snap ring 6 and the shell 1, and the upper cover 2 and the shell 1 are relatively fixed, and have a certain deformation function. During installation, the distance between the surface of the fixing ear 42 and the surface of the upper cover 2 can be fine-tuned, which improves the flexibility of installation and has a better fixing effect on the thermal protector. Example 2

[0036] In order to achieve a good waterproof and sealing effect, a sealing layer is provided between the positioning groove 11 and the terminal 3. The sealing layer is made of epoxy resin.

[0037] Thus, epoxy resin is poured between the positioning groove 11 and the terminal 3 , and epoxy resin is poured between the housing 1 and the upper cover 2 , thereby achieving a waterproof and sealing effect.

[0038] During specific use, the sealing ring 5 is in interference connection with the upper cover 2, the snap ring 6 is in interference connection with the shell 1, epoxy resin is poured between the positioning groove 11 and the terminal 3, and epoxy resin is poured between the shell 1 and the upper cover 2. A sealing structure is set at the connection point to achieve a good waterproof sealing effect.

[0039] It should be noted that although the embodiments of the utility model have been shown and described, for ordinary technicians in this field, without departing from the inventive purpose of the utility model, structural methods and embodiments similar to the technical scheme without creative design should all fall within the scope of protection of the utility model.

Claims

1. A waterproof and sealed thermal protector, comprising a housing and an upper cover which is covered on the housing to form a seal, characterized in that: The housing is provided with a lower opening, a positioning groove is provided at the lower opening, a terminal is installed in the positioning groove and extends to the outside of the housing; and further includes: a mounting frame and a sealing ring; A fixing hole is opened at the center of the mounting frame, and a sealing ring is bent and extended upwards from the edge of the fixing hole of the mounting frame. The sealing ring is installed on the outside of the upper cover, and the inner wall of the sealing ring is interference fit with the upper cover. Fixing ears are installed on both outer sides of the mounting frame; A sealing glue layer is provided between the positioning groove and the terminal.

2. A waterproof and sealed thermal protector according to claim 1, characterized in that: The mounting frame is provided with a buckle ring extending downward from the edge of the fixing hole. The buckle ring is arranged in an inverted truncated cone shape and is interference-connected to the outside of the shell.

3. A waterproof and sealed thermal protector according to claim 2, characterized in that: The sealing ring is arranged in a truncated cone shape, and the sealing ring is interference-connected with the upper cover.

4. A waterproof and sealed thermal protector according to claim 3, characterized in that: The vertical height of the sealing ring is greater than the vertical height of the buckle ring.

5. A waterproof and sealed thermal protector according to claim 1, characterized in that: The housing is provided with an axial protrusion in the positioning groove, and the terminal is installed in the axial protrusion.

6. A waterproof and sealed thermal protector according to claim 1, characterized in that: The sealant layer is made of epoxy resin, the epoxy resin is poured between the positioning groove and the terminal, and the epoxy resin is poured between the shell and the upper cover.

7. A waterproof and sealed thermal protector according to claim 1, characterized in that: The positioning grooves are symmetrically arranged with respect to the lower opening of the shell, and the terminals are arranged in the positioning grooves on both sides respectively, including a first terminal and a second terminal, and holes are opened at the ends of the first terminal and the second terminal.

8. A waterproof and sealed thermal protector according to claim 1, characterized in that: The fixing ears are symmetrically arranged in two groups on both sides of the mounting frame, and each group of the fixing ears is provided with a mounting hole.

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