Plastic package motor temperature controller fixing structure

By designing the installation slot and clamping rib strips in the plastic-sealed motor thermostat, using local interference fit and glue fixation, the problem of the existing structure being unable to be installed is solved, and the firm fixation of the thermostat and reliable temperature sensing are achieved.

CN223093580UActive Publication Date: 2025-07-11JIANGMEN ZHENHUA MOTOR MFG CO LTD
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Patent Information

Application Number
CN202422203900.8
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-09-09
Publication Date
2025-07-11
Estimated Expiration
2034-09-09

AI Technical Summary

Technical Problem

The existing plastic-sealed motor thermostat fixed structure cannot be installed in applications where the circumferential direction is blocked by the load, resulting in difficulty in installation.

Method used

The thermostat installation groove and fixing rib strips on the surface of the injection molded body were designed, and the thermostat was fixed by a local interference fit, and glue was bonded to the contact surface to enhance firmness.

Benefits of technology

The temperature controller is firmly installed, avoiding installation difficulties, and improving the reliability and stability of temperature sensing.

✦ Generated by Eureka AI based on patent content.

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    Figure CN223093580U_ABST
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Abstract

The utility model relates to the technical field of temperature controllers, in particular to a plastic package motor temperature controller fixing structure, which comprises an injection molding body, a temperature controller is arranged above the injection molding body, a wire clamp is arranged on one side of the temperature controller, and a fixing structure is arranged on the surface of the injection molding body. Through the designed temperature controller installation groove and the two clamping ribs arranged on the two sides of the groove, local interference fit with the temperature controller can be achieved, the temperature controller is clamped in the groove and makes close contact with the bottom face of the groove, and the temperature of the motor is fully sensed; meanwhile, the situation that the temperature controller is difficult to install due to comprehensive interference fit of the two side faces can be avoided, meanwhile, water adheres to the contact face of the temperature controller and the installation groove, installation firmness can be further enhanced, and temperature control protection is more reliable.
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Description

Technical Field

[0001] The utility model relates to the technical field of thermostats, in particular to a fixing structure for a plastic-encapsulated motor thermostat. Background Technique

[0002] A thermostat is a series of automatic control components that, according to the temperature change of the working environment, undergo physical deformation inside the switch, thereby generating certain special effects to achieve on or off actions.

[0003] The existing traditional fixing structure of a plastic-encapsulated motor thermostat is as Figure 1 shown, including an injection molding body. A thermostat wire clip is arranged on the side of the injection molding body. Inside the thermostat wire clip, a thermostat is connected in series with the motor circuit system. The thermostat senses the working temperature of the motor. When the temperature sensed by the thermostat is greater than a certain value, the thermostat disconnects, the motor circuit is disconnected, and the motor stops working; when the temperature sensed by the thermostat is lower than the reset temperature, the thermostat closes, the motor circuit is connected, and the motor works normally. In the current plastic-encapsulated motors, the thermostat is generally fixed at the wire outlet on the circumferential surface through a wire clip. In this way, in application scenarios where the circumferential direction is blocked by a load, the existing structure cannot be installed.

[0004] Therefore, a new structural design of a plastic-encapsulated motor thermostat is needed to solve the above problems. Content of the Utility Model

[0005] The purpose of the utility model is to provide a fixing structure for a plastic-encapsulated motor thermostat to solve the problems raised in the above background technique.

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

[0007] A fixing structure for a plastic-encapsulated motor thermostat, including an injection molding body. A thermostat is arranged above the injection molding body. A wire clip is arranged on one side of the thermostat. A fixing structure is arranged on the surface of the injection molding body.

[0008] Further, the fixing structure includes a fixing groove installed on the surface of the injection molding body. A thermostat installation groove is arranged inside the fixing groove. Two clamping ribs are arranged on both sides of the thermostat installation groove.

[0009] Further, a fixing block is arranged on the surface of the injection molding body. A positioning hole is opened on the surface of the fixing block.

[0010] Further, the injection molding body is installed on the surface of an end cover.

[0011] Further, the thermostat installation groove and the thermostat are in interference fit.

[0012] Furthermore, the thermostat installation groove and the thermostat contact surface can be fixed by bonding glue.

[0013] Furthermore, the material used for the injection molded body is unsaturated polyester bulk molding compound (BMC).

[0014] Compared with the prior art, the technical effects and advantages of the present utility model are as follows: A fixing structure for a thermostatically controlled plastic-encapsulated motor provided by the present utility model, through the designed thermostat installation groove, with two clamping ribs arranged on both sides of the groove, can achieve a local interference fit with the thermostat, clamp the thermostat tightly in the groove, and be in close contact with the bottom surface of the groove, fully sensing the temperature of the motor; at the same time, it can avoid the difficulty in installing the thermostat caused by the full-surface interference fit on both sides (Note: If the full surface on both sides is in interference fit, it is very difficult to insert the thermostat into the groove; in the present utility model, only the two clamping ribs are in interference fit with the thermostat, that is, local interference fit, which can achieve firm installation of the thermostat and also avoid installation difficulties). At the same time, applying glue on the contact surface between the thermostat and the installation groove can further strengthen the firmness of the installation, making the temperature control protection more reliable. Description of the Drawings

[0015] Figure 1 It is a structural diagram of the present utility model;

[0016] Figure 2 It is a structural diagram of the injection molded body of the present utility model;

[0017] Figure 3 It is a top view structural diagram of the injection molded body of the present utility model;

[0018] Figure 4 It is a structural diagram of the fixing of a thermostatically controlled plastic-encapsulated motor in the prior art.

[0019] In the figure: 1. Injection molded body; 2. Thermostat; 3. Wire clamp; 41. Fixed groove; 42. Thermostat installation groove; 43. Clamping rib; 5. Fixed block; 6. Positioning hole; 7. End cover; 8. Glue. Detailed Embodiments

[0020] 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 of 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.

[0021] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by terms such as "upper end", "lower end", "inner", "outer", "front end", "rear end", "both ends", "one end", "the other end", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present utility model. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0022] In the description of the present utility model, it should be noted that unless otherwise clearly specified and defined, terms such as "installation", "provided with", "sheathed with", "socketed", "connection", etc. should be understood in a broad sense. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0023] Embodiment 1

[0024] Please refer to Figure 4 , the fixed structure of the plastic-encased motor temperature controller in the prior art includes an injection molded body 1. A temperature controller wire clip is provided on the side of the injection molded body 1. A temperature controller 1 is arranged inside the temperature controller wire clip in series with the motor circuit system. The temperature controller 1 senses the working temperature of the motor. When the temperature sensed by the temperature controller 1 is greater than a certain value, the temperature controller 1 disconnects, the motor circuit is disconnected, and the motor stops working; when the temperature sensed by the temperature controller is lower than the reset temperature, the temperature controller closes, the motor circuit is connected, and the motor works normally.

[0025] Embodiment 2

[0026] Please refer to Figures 1 to 3 , the present utility model provides a technical solution;

[0027] In the specific implementation process, as Figure 2 shown, the fixed structure 4 includes a fixed groove 41 installed on the surface of the injection molded body 1. A temperature controller installation groove 42 is provided inside the fixed groove 41, and two clamping ribs 43 are arranged on both sides of the temperature controller installation groove 42.

[0028] It should be noted that a fixing groove 41 is installed on the surface of the injection molded body 1. A thermostat installation groove 42 is provided inside the fixing groove 41. Two clamping ribs 43 are provided on both sides of the thermostat installation groove 42. The two clamping ribs 43 provided on both sides of the thermostat installation groove 42 can achieve a local interference fit with the thermostat 2, clamp the thermostat 2 tightly in the thermostat installation groove 42, and be in close contact with the bottom surface of the groove, fully sensing the temperature of the end cover; at the same time, it can avoid the difficulty of installing the thermostat caused by the overall interference fit on both sides.

[0029] In the specific implementation process, as Figure 1 shown, a fixing block 5 is provided on the surface of the injection molded body 1, and a positioning hole 6 is opened on the surface of the fixing block 5.

[0030] It should be noted that a fixing block 5 is provided on the surface of the injection molded body 2, a positioning hole 6 is opened on the surface of the fixing block 5, and the fixing block 5 and the positioning hole 6 are used to better fix the injection molded body 1.

[0031] In the specific implementation process, as Figure 1 shown, the injection molded body 1 is installed on the surface of the end cover 7.

[0032] It should be noted that the injection molded body 2 is installed on the surface of the end cover 7.

[0033] In the specific implementation process, as Figure 1 shown, the thermostat installation groove 42 and the thermostat 2 are in interference fit.

[0034] It should be noted that the thermostat installation groove 42 and the thermostat 2 are in interference fit.

[0035] In the specific implementation process, as Figure 1 shown, the contact surface between the thermostat installation groove 42 and the thermostat 2 can be fixed by bonding glue 8.

[0036] It should be noted that the contact surface between the thermostat installation groove 42 and the thermostat 2 can be fixed by bonding glue 8.

[0037] In the specific implementation process, as Figure 1 shown, the material used for the injection molded body 1 is unsaturated polyester bulk molding compound.

[0038] It should be noted that the material used for the injection molded body 1 is unsaturated polyester bulk molding compound.

[0039] The working principle of this embodiment is as follows: During specific use, the thermostat 2 is arranged on the end face of the end cover 7, which can avoid interference with the load when arranged circumferentially on the end cover 7 and thus cannot be installed. Through the designed thermostat installation groove 42, two clamping ribs 43 are arranged on both sides of the groove, which can achieve a local interference fit with the thermostat 2, clamp the thermostat 2 tightly in the thermostat installation groove 42, and be in close contact with the bottom surface of the groove to fully sense the temperature of the end cover 7. At the same time, it can also avoid the difficulty in installing the thermostat 2 caused by the overall interference fit on both sides (Note: If the entire surface on both sides is in interference fit, it is very difficult for the thermostat 2 to be inserted into the thermostat installation groove 42; in this utility model, only the two clamping ribs 43 and the thermostat 2 are in interference fit, that is, local interference fit, which can achieve firm installation of the thermostat 2 and also avoid installation difficulties). At the same time, glue 8 is bonded on the contact surface between the thermostat 2 and the thermostat installation groove 42, which can further strengthen the firmness of the installation and make the temperature control protection more reliable.

[0040] For the rest of this utility model that is not described, it is existing or well-known technology.

[0041] Although the embodiments of the present utility model have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.

Claims

1. A fixed structure for a thermostatic controller of a plastic-encapsulated motor, characterized in that, It includes an injection molded body (1), a thermostat (2) is arranged above the injection molded body (1), a wire clamp (3) is arranged on one side of the thermostat (2), and a fixing structure (4) is arranged on the surface of the injection molded body (1).

2. The fixed structure of a plastic-encapsulated motor temperature controller according to claim 1, characterized in that, The fixing structure (4) includes a fixing groove (41) installed on the surface of the injection molded body (1), a thermostat installation groove (42) is arranged inside the fixing groove (41), and two clamping ribs (43) are arranged on both sides of the thermostat installation groove (42).

3. A fixed structure for a plastic-encapsulated motor temperature controller according to claim 1, characterized in that, A fixing block (5) is arranged on the surface of the injection molded body (1), and a positioning hole (6) is formed on the surface of the fixing block (5).

4. A fixing structure for a plastic-encapsulated motor temperature controller according to claim 1, characterized in that, The inside of the injection molded body (1) is installed on the surface of an end cover (7).

5. The fixed structure of the plastic-encapsulated motor temperature controller according to claim 2, characterized in that, The thermostat installation groove (42) and the thermostat (2) are in interference fit.

6. The fixed structure of the plastic-encapsulated motor temperature controller according to claim 5, wherein, The contact surface between the thermostat installation groove (42) and the thermostat (2) can be fixed by bonding glue (8).

7. A fixing structure for a thermostatic controller of a plastic-encapsulated motor according to claim 1, characterized in that, The material used for the injection molded body (1) is unsaturated polyester bulk molding compound.