Integrally sealed thermal protector

Abstract

The utility model discloses an integrally sealed thermal protector, which relates to the technical field of thermal protectors and comprises a clamping plate. The number of the clamping plates is two, the two clamping plates are oppositely arranged, and then clamping plates are welded to the two clamping plates; the inner sides of the clamping plates on the two clamping plates are clamped with an upper cover, the upper cover is buckled on the bearing plate, and the upper cover is provided with a circular hole convenient for the lead to pass through; the bearing plate is welded on one of the clamping plates; according to the utility model, the upper cover and the bearing plate are buckled and sealed, the clamping plates are driven to move through the clamping plates on the two sides, the connecting and sealing effects can be further enhanced, loosening and cracking are avoided, and the circular hole in the upper cover is subjected to gluing and sealing treatment after penetrating out and guiding, so that the compensation effect of the inner side is ensured.

Description

Technical Field

[0001] The utility model specifically relates to the technical field of thermal protectors, and particularly relates to an integrally sealed thermal protector. Background Technique

[0002] A thermal protector is composed of two different alloys combined together. When current passes through, it will generate heat. Due to the different thermal expansion coefficients of the two different alloys, the alloy will inevitably bend in one direction, the contact points will separate, and the power will be cut off. The bending speed is directly proportional to the magnitude of the current passing through. In this way, the electrical equipment is protected.

[0003] Chinese Invention Publication No. CN 109767951 B discloses an integrally sealed thermal protector, which includes an insulating sheath, a static piece, a wire clamp a interconnected with the static piece, a wire a, a static contact, an elastic movable piece, a wire clamp b, a support interconnected with the wire clamp b, a wire b, an insulating resin base with a shallow groove and an insulating resin block. The support has grooves and protrusions on its inner and outer walls respectively. The protrusion is provided with a temperature-adjusting concave point. One end of the elastic movable piece is welded to the inner wall of the support around the outer periphery of the groove, and the other end and the movable contact arranged thereon are suspended in the groove together. A constant temperature ring in contact with the temperature-adjusting concave point is pressed between the two ends of the elastic movable piece. The static piece is embedded in the semi-piece-shaped insulating resin base, and the base is superposed on the support and jointly embedded and connected to the insulating resin block. Only the surface of the protrusion and the temperature-adjusting concave point of the support are exposed from the insulating resin block. A movement space for the elastic movable piece is formed between the shallow groove and the groove and is sealed by the insulating resin block;

[0004] For the above-mentioned integrally sealed thermal protector, it is sealed on the outside through the insulating sheath, but the thermal protector cannot be completely in a sealed state. Usually, a sealing treatment is carried out to achieve the sealing effect. However, during installation and disassembly, it is relatively troublesome. Therefore, we provide an integrally sealed thermal protector. The two clamping plates can move. The upper clamping plate fixes the upper cover, and the upper cover and the bearing plate are sealed, which can achieve the sealing effect. Under the clamping of the clamping plate, it is ensured that there will be no cracking, and it is convenient for the installation and disassembly of the inner components, effectively making up for the above problems. Content of the Utility Model

[0005] The purpose of the utility model is to provide an integrally sealed thermal protector to solve the problems raised in the background technique.

[0006] To achieve the above purpose, the utility model provides the following technical solutions:

[0007] An integral sealed thermal protector includes a clamping plate; there are two clamping plates, and the two clamping plates are arranged oppositely. Secondly, clamping plates are welded on both clamping plates; the clamping plates on the two clamping plates are internally clamped with an upper cover, and the upper cover is buckled on a bearing plate. Secondly, a circular hole for the wire to pass through is opened on the upper cover; the bearing plate is welded on one of the clamping plates.

[0008] As a further technical solution of the present invention, convex ears are welded on both of the two clamping plates, and a guide tube is welded on the convex ear of one of the clamping plates, and a guide rod is welded on the convex ear of the other clamping plate. Secondly, the guide rod is slidably connected in the corresponding guide tube.

[0009] As a further technical solution of the present invention, a slotted groove for the sliding connection of a limit post is opened on the guide tube, and the limit post is welded on the corresponding guide rod. Secondly, a spring is sleeved outside the guide rod and the corresponding guide tube.

[0010] As a further technical solution of the present invention, a clamping groove for the installation of a moving contact piece is arranged on the bearing plate, and a static contact piece is attached above the moving contact piece.

[0011] As a further technical solution of the present invention, the static contact piece is riveted on the bearing plate, and a wire is connected in cooperation with the static contact piece.

[0012] As a further technical solution of the present invention, metal connecting pieces are welded on one of the two clamping plates and the upper cover.

[0013] Compared with the prior art, the beneficial effects of the present invention are:

[0014] In the present invention, the upper cover is buckled with the bearing plate and sealed. By driving the clamping plate to move through the clamping plates on both sides, the connection and sealing effect can be further strengthened, and it will not become loose or cracked. The circular hole on the upper cover is sealed with glue after the wire passes through to ensure the compensation effect inside;

[0015] In the present invention, the limit post of the guide rod is slidably connected in the slotted groove of the guide tube to play a limiting role to prevent the guide rod from slipping out. With the cooperation of the spring, a tightening effect can be achieved, thereby clamping the upper cover;

[0016] In the present invention, the clamping groove of the bearing plate can play a limiting role to prevent the moving contact piece from shifting. The static contact piece is riveted and fixed, and in cooperation with the wire, stability can be ensured. Description of the Drawings

[0017] Figure 1 is a three-dimensional structural schematic diagram of the present invention.

[0018] Figure 2 is another perspective schematic diagram in the present utility model Figure 1 .

[0019] Figure 3 is a partial enlarged view of part A in the present utility model Figure 2 .

[0020] Figure 4 is a schematic diagram of the internal structure in the present utility model Figure 1 .

[0021] Figure 5 is a schematic diagram of the use state of the present utility model

[0022] In the figure: 1 - clamping plate, 2 - clamping board, 3 - protruding ear, 4 - guide tube, 5 - limiting post, 6 - guide rod, 7 - spring, 8 - upper cover, 9 - wire, 10 - moving contact piece, 11 - static contact piece, 12 - metal connecting piece, 13 - bearing plate, 14 - sealing shell Specific embodiments

[0023] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model

[0024] Please refer to Figures 1-5 , in the embodiments of the present utility model, an overall sealed thermal protector includes a clamping plate 1; there are two clamping plates 1, and the two clamping plates 1 are arranged oppositely. Secondly, clamping boards 2 are welded on both clamping plates 1; the inner sides of the clamping boards 2 on the two clamping plates 1 are clamped with an upper cover 8, and the upper cover 8 is buckled on a bearing plate 13. Secondly, a circular hole for the wire 9 to pass through is opened on the upper cover 8; the bearing plate 13 is welded on one of the clamping plates 1

[0025] By adopting the above technical solutions, the upper cover 8 is buckled with the bearing plate 13 and sealed. By driving the clamping boards 2 to move through the clamping plates 1 on both sides, the connection and sealing effect can be further strengthened, and there will be no loosening or cracking. After the wire 9 passes through the circular hole on the upper cover 8, sealant is applied for sealing treatment to ensure the compensation effect on the inner side. Secondly, after sleeving the sealing shell 14, the inner side can be completely sealed

[0026] In this embodiment, raised ears 3 are welded on both of the two clamping plates 1. A guide tube 4 is welded on the raised ear 3 of one of the clamping plates 1, and a guide rod 6 is welded on the raised ear 3 of the other clamping plate 1. Secondly, the guide rod 6 is slidably connected within the corresponding guide tube 4.

[0027] Furthermore, a slot is provided on the guide tube 4 to facilitate the sliding connection of a limit post 5, and the limit post 5 is welded on the corresponding guide rod 6. Secondly, a spring 7 is sleeved outside the corresponding guide rod 6 and guide tube 4.

[0028] By adopting the above technical solution, the limit post 5 of the guide rod 6 is slidably connected within the slot of the guide tube 4, playing a limiting role to prevent the guide rod 6 from slipping out. With the cooperation of the spring 7, a tightening effect can be achieved, thereby clamping the upper cover 8.

[0029] In this embodiment, a slot for installing a moving contact piece 10 is provided on the bearing plate 13, and a static contact piece 11 is attached above the moving contact piece 10.

[0030] Furthermore, the static contact piece 11 is riveted to the bearing plate 13, and a conducting wire 9 is cooperatively connected to the static contact piece 11.

[0031] By adopting the above technical solution, the slot of the bearing plate 13 can play a limiting role to prevent the moving contact piece 10 from shifting. The static contact piece 11 is riveted and fixed, and with the cooperation of the conducting wire 9, stability can be ensured.

[0032] In this embodiment, a metal connecting piece 12 is welded on one of the two clamping plates 1 and on the upper cover 8.

[0033] By adopting the above technical solution, the metal connecting piece 12 can be fixed on the installation carrier.

[0034] The working principle of the present utility model is as follows: The metal connecting piece 12 can be fixed on the installation carrier; the upper cover 8 is buckled with the bearing plate 13 and sealed. By driving the clamping plate 2 to move through the two clamping plates 1 on both sides, the connection and sealing effect can be further strengthened, and it will not become loose or cracked. For the circular hole on the upper cover 8, after passing through the guide 9, sealant is applied for sealing treatment to ensure the compensation effect on the inner side; the limit post 5 of the guide rod 6 is slidably connected within the slot of the guide tube 4, playing a limiting role to prevent the guide rod 6 from slipping out. With the cooperation of the spring 7, a tightening effect can be achieved, thereby clamping the upper cover 8; the slot of the bearing plate 13 can play a limiting role to prevent the moving contact piece 10 from shifting. The static contact piece 11 is riveted and fixed, and with the cooperation of the conducting wire 9, stability can be ensured.

[0035] For those skilled in the art, it is obvious that the present utility model is not limited to the details of the above-described exemplary embodiments, and the present utility model can be implemented in other specific forms without departing from the spirit or basic characteristics of the present utility model. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the present utility model is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be embraced within the present utility model. Any reference signs in the claims should not be construed as limiting the claims involved.

[0036] In addition, it should be understood that although this specification is described according to embodiments, not every embodiment only contains an independent technical solution. This narrative way of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. An integral sealed thermal protector, characterized in that: It comprises a snap-in plate (1); two snap-in plates (1) are provided, and the two snap-in plates (1) are arranged opposite to each other; secondly, a snap-in plate (2) is welded to each of the two snap-in plates (1); an upper cover (8) is snap-fitted to the inner side of the snap-in plates (2) on the two snap-in plates (1), and the upper cover (8) is buckled onto a bearing plate (13); secondly, a circular hole is provided on the upper cover (8) for facilitating the wire (9) to pass through; the bearing plate (13) is welded to one of the snap-in plates (1).

2. An integral sealed thermal protector according to claim 1, characterized in that: Both of the two clamping plates (1) are welded with protruding ears (3), and a guide tube (4) is welded to the protruding ear (3) of one of the clamping plates (1), and a guide rod (6) is welded to the protruding ear (3) of the other clamping plate (1), and the guide rod (6) is slidably connected in the corresponding guide tube (4).

3. An integral sealed thermal protector according to claim 2, characterized in that: The guide tube (4) is provided with a slot for slidably connecting the limit column (5), and the limit column (5) is welded to the corresponding guide rod (6). In addition, a spring (7) is sleeved on the outer side of the guide rod (6) and the corresponding guide tube (4).

4. The integral sealed thermal protector according to claim 1, characterized in that: The carrier plate (13) is provided with a slot for mounting the moving contact piece (10), and a stationary contact piece (11) is attached to the top of the moving contact piece (10).

5. An integral sealed thermal protector according to claim 4, characterized in that: The stationary contact piece (11) is riveted on the carrier plate (13), and a wire (9) is connected to the stationary contact piece (11).

6. An integral sealed thermal protector according to claim 1, characterized in that: A metal connecting piece (12) is welded onto one of the two clamping plates (1) and the upper cover (8).

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