Novel kick type temperature protector

Abstract

The novel kick type temperature protector comprises an aluminum cover, a shell, a guide frame, a first temperature control protection assembly and a second temperature control protection assembly, the shell, the guide frame, the first temperature control protection assembly and the second temperature control protection assembly are all located in the aluminum cover, the lower end of the guide frame is connected with the upper end of the shell, and the lower end of the guide frame is connected with the upper end of the shell. One end of the first temperature control protection assembly is movably connected with the guide frame, the other end of the first temperature control protection assembly is connected with the shell, one end of the second temperature control protection assembly is movably connected with the guide frame, and the other end of the second temperature control protection assembly is connected with the shell. According to the utility model, the protection functions realized by two temperature control protections are integrated in one temperature protector, the size is small, the response is fast, no interference is caused, and the temperature protector is applied to new energy battery charging protection and can realize the dual functions of early warning and protection.

Description

Technical Field

[0001] This utility model relates to the field of temperature controller technology, and in particular to a novel snap-action temperature protector. Background Technology

[0002] Current charging protection devices for new energy batteries primarily rely on the bimetallic strip principle for temperature protection. These devices typically consist of a base, a silver plate assembly, a bimetallic strip, a moving spring, a moving contact, and a housing. These components are riveted together, ensuring close contact between the moving contact and the silver plate assembly, thus maintaining a conductive circuit. When the battery generates heat during operation, causing the temperature to rise to a preset operating temperature, the housing absorbs the heat and conducts it to the bimetallic strip. The heated bimetallic strip generates internal stress, causing it to bend and deform, pushing the moving contact away from the silver plate assembly. This disconnects the circuit, cuts off the battery power, and protects the battery.

[0003] Existing snap-action temperature protectors function as single-pole single-throw or double-pole double-throw protectors. When the protector trips, it can only disconnect one or two circuits, or connect one or two circuits. It cannot disconnect one circuit while simultaneously connecting another, or connect one circuit while simultaneously disconnecting another. Therefore, a new type of snap-action temperature protector is urgently needed to improve upon these issues. Utility Model Content

[0004] The purpose of this invention is to provide a novel snap-action temperature protector to solve the aforementioned technical problems. This invention uses two independent first bimetallic strips and second bimetallic strips, with their own independent first and second actuating rods, to transmit the temperature sensing action of the temperature sensing strip to the first and second moving springs respectively, causing their corresponding contacts to open or close, thus realizing the on / off action of the temperature protector. Independent transmission avoids mutual interference, resulting in good performance and strong practicality.

[0005] To achieve the above objectives, this utility model employs the following technical solution:

[0006] A novel snap-action temperature protector includes an aluminum cover, a housing, a guide frame, a first temperature control protection component, and a second temperature control protection component. The housing, guide frame, first temperature control protection component, and second temperature control protection component are all located inside the aluminum cover. The lower end of the guide frame is connected to the upper end of the housing. One end of the first temperature control protection component is movably connected to the guide frame, and the other end of the first temperature control protection component is connected to the housing. One end of the second temperature control protection component is movably connected to the guide frame, and the other end of the second temperature control protection component is connected to the housing.

[0007] Preferably, the first temperature control protection component includes a first bimetallic strip, a first actuating rod, and a first movable spring. The first bimetallic strip is located above the guide frame. The upper end of the first actuating rod is connected to the first bimetallic strip. The lower end of the first actuating rod passes through the guide frame and abuts against the first movable spring. The first movable spring is fixed to the housing by short rivets.

[0008] Preferably, the first temperature control protection component further includes a first moving contact and a first stationary contact. The first moving contact is located on the first moving spring, and the first stationary contact is mounted on the housing and located below the first moving contact.

[0009] Preferably, the second temperature control protection component includes a second bimetallic strip, a second actuating rod, and a second movable spring. The second movable spring is located between the guide frame and the first movable spring. The second bimetallic strip is located below the first bimetallic strip. The second actuating rod is located on one side of the first actuating rod. The upper end of the second actuating rod is connected to the second bimetallic strip. The lower end of the second actuating rod passes through the guide rod and abuts against the second movable spring. The second movable spring is fixed to the housing by a long rivet.

[0010] Preferably, the second movable spring is provided with a through hole, the lower end of the first actuating rod passes through the guide frame, the through hole abuts against the first movable spring, and the diameter of the through hole is larger than the diameter of the first actuating rod.

[0011] Preferably, the second temperature control protection component further includes a second moving contact and a second stationary contact. The second moving contact is located on the second moving spring, and the second stationary contact is mounted on the housing and located below the second moving contact.

[0012] Preferably, the guide frame is provided with a first movable hole, a second movable hole and a plurality of through holes, the lower end of the first actuating rod passes through the first movable hole and abuts against the first movable spring, and the lower end of the second actuating rod passes through the second movable hole and abuts against the second movable spring.

[0013] Preferably, the lower end of the guide frame is provided with a protrusion and several support seats, and the lower end of the support seats is provided with several plug-in posts.

[0014] Preferably, the upper end of the housing is provided with a protruding long support portion, a protruding short support portion, a contact support portion, and a plurality of insertion holes. One end of the first moving spring abuts against the short support portion and is fixed to the short support portion by a short rivet. One end of the second moving spring abuts against the long support portion and is fixed to the long support portion by a long rivet. The upper end of the second stationary contact is located on the contact support portion. The insertion post of the guide frame is adapted to the insertion hole.

[0015] Preferably, the lower end of the housing is provided with a first connector, a second connector and a third connector, one end of the first connector is inserted through a first stationary contact, the other end of the first connector is inserted through a second stationary contact, the second connector is inserted through a long rivet, and the third connector is inserted through a short rivet.

[0016] This utility model of a snap-action temperature protector has the following beneficial effects:

[0017] 1. This utility model sets up two independent first bimetallic strips and second bimetallic strips, and through their respective independent first and second actuating rods, the temperature sensing action of the temperature sensing strip is transmitted to the first and second moving springs respectively, so that the corresponding contacts open or close to realize the on and off action of the temperature control protector. Independent transmission avoids mutual interference, has good performance and strong practicality.

[0018] 2. This utility model adopts the technology of a combined on / off snap-action temperature protector, which is mainly used for the charging protection of new energy batteries: when the battery temperature reaches the warning temperature point, the first temperature control protection component or the second temperature control protection component activates the alarm device to issue a warning. When the temperature continues to rise to a certain level, the corresponding second temperature control protection component or the first temperature control protection component will activate to cut off the battery charging power. This utility model integrates the protection functions that require two temperature control protections into one temperature protector. It is small in size, fast in response, and interference-free. When applied to the charging protection of new energy batteries, it can achieve the dual functions of warning and protection.

[0019] 3. The aluminum cover of this utility model is made of aluminum metal material, and the temperature sensing area of ​​the temperature control is increased. Compared with the traditional snap-action temperature protector which adopts a half-cover design, this utility model improves the accuracy of temperature control and sensing, and has a better performance. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0021] Figure 2 for Figure 1 The diagram shown is a structural schematic without the aluminum cap.

[0022] Figure 3 for Figure 2 The diagram shown is a structural schematic without the shell.

[0023] Figure 4 for Figure 2 The diagram shown is a structural schematic without the guide frame.

[0024] Figure 5 This is a cross-sectional structural diagram of the present invention;

[0025] Figure 6This is a structural breakdown diagram of the present invention;

[0026] Figure 7 This is a schematic diagram of the bottom structure of this utility model;

[0027] Figure 8 This is a schematic diagram illustrating the principle of this utility model;

[0028] The numbers on the map are:

[0029] 1. Aluminum cover; 2. Housing; 3. Guide frame; 4. First bimetallic strip; 5. First actuating rod; 6. First moving spring; 7. Abutment part; 8. First moving contact; 9. First stationary contact; 10. Second bimetallic strip; 11. Second actuating rod; 12. Second moving spring; 13. Second moving contact; 14. Second stationary contact; 15. First movable hole; 16. Second movable hole; 17. Through hole; 18. Protrusion; 19. Support base; 20. Insertion post; 21. Long support part; 22. Short support part; 23. Contact support part; 24. Insertion hole; 25. First limiting recess; 26. Second limiting recess; 27. First connecting piece; 28. Second connecting piece; 29. ​​Third connecting piece. Detailed Implementation

[0030] To enable those skilled in the art to better understand the technical solution of this utility model, the following detailed description of the utility model is provided in conjunction with the embodiments and accompanying drawings.

[0031] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly on the other element or there may be an intervening element; when an element is referred to as being "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0032] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0033] like Figure 1 and Figure 2As shown, a novel snap-action temperature protector includes an aluminum cover 1, a housing 2, a guide frame 3, a first temperature control protection component, and a second temperature control protection component. The housing 2, guide frame 3, first temperature control protection component, and second temperature control protection component are all located inside the aluminum cover 1. The lower end of the guide frame 3 is connected to the upper end of the housing 2. One end of the first temperature control protection component is movably connected to the guide frame 3, and the other end of the first temperature control protection component is connected to the housing 2. One end of the second temperature control protection component is movably connected to the guide frame 3, and the other end of the second temperature control protection component is connected to the housing 2.

[0034] It should be noted that the aluminum cover 1 is made of aluminum metal material, and the temperature sensing area of ​​the temperature control has been increased. Compared with the traditional snap-action temperature protector which adopts a half-cover design, the present invention improves the accuracy of temperature control and sensing, and has a better performance.

[0035] like Figure 4 and Figure 5 As shown, the first temperature control protection component includes a first bimetallic strip 4, a first actuating rod 5, and a first movable spring 6. The first bimetallic strip 4 is located above the guide frame 3. The upper end of the first actuating rod 5 is connected to the first bimetallic strip 4. The lower end of the first actuating rod 5 passes through the guide frame 3 and abuts against the first movable spring 6. The first movable spring 6 is fixed to the housing 2 by short rivets.

[0036] like Figure 4 and Figure 5 As shown, the upper end surface of the first movable spring 6 is provided with a protruding abutment portion 7.

[0037] like Figure 4 and Figure 5 As shown, the first temperature control protection component also includes a first moving contact 8 and a first stationary contact 9. The first moving contact 8 is located on the first moving spring 6, and the first stationary contact 9 is mounted on the housing 2 and is located below the first moving contact 8.

[0038] like Figure 4 and Figure 5 As shown, the second temperature control protection component includes a second bimetallic strip 10, a second actuating rod 11, and a second movable spring 12. The second movable spring 12 is located between the guide frame 3 and the first movable spring 6. The second bimetallic strip 10 is located below the first bimetallic strip 4. The second actuating rod 11 is located on one side of the first actuating rod 5. The upper end of the second actuating rod 11 is connected to the second bimetallic strip 10. The lower end of the second actuating rod 11 passes through the guide rod and abuts against the second movable spring 12. The second movable spring 12 is fixed to the housing 2 by a long rivet.

[0039] like Figure 4 and Figure 5As shown, the second movable spring 12 is provided with a through hole. The lower end of the first actuating rod 5 passes through the guide frame 3 and abuts against the first movable spring 6 through the through hole. The diameter of the through hole is larger than the diameter of the first actuating rod 5, so that the first actuating rod 5 will not contact the second movable spring 12.

[0040] like Figure 4 and Figure 5 As shown, the second temperature control protection component also includes a second moving contact 13 and a second stationary contact 14. The second moving contact 13 is located on the second moving spring 12, and the second stationary contact 14 is mounted on the housing 2 and is located below the second moving contact 13.

[0041] like Figure 6 As shown, the guide frame 3 is provided with a first movable hole 15, a second movable hole 16 and several through holes 17. The lower end of the first actuating rod 5 passes through the first movable hole 15 and abuts against the first moving spring 6. The lower end of the second actuating rod 11 passes through the second movable hole 16 and abuts against the second moving spring 12.

[0042] like Figure 3 and Figure 6 As shown, the lower end of the guide frame 3 is provided with a protrusion 18 and several support seats 19, and the lower end of the support seats 19 is provided with several plug-in posts 20.

[0043] like Figure 6 As shown, the upper end of the housing 2 is provided with a protruding long support portion 21, a protruding short support portion 22, a contact support portion 23, and a plurality of insertion holes 24. One end of the first moving spring 6 abuts against the short support portion 22 and is fixed to the short support portion 22 by a short rivet. One end of the second moving spring 12 abuts against the long support portion 21 and is fixed to the long support portion 21 by a long rivet. The upper end of the second stationary contact 14 is located on the contact support portion 23. The insertion post 20 of the guide frame 3 is adapted to the insertion hole 24.

[0044] It should be noted that the short support portion 22 is provided with a first limiting recess 25, and the long support portion 21 is provided with a second limiting recess 26. One end of the first movable spring 6 abuts against the first limiting recess 25, and one end of the second movable spring 12 abuts against the second limiting recess 26. The positions of the first movable spring 6 and the second movable spring 12 are limited and fixed by the cooperation of the short rivet and the long rivet, respectively, which stabilizes the position and improves the overall stability of the present invention.

[0045] like Figure 7As shown, the lower end of the housing 2 is equipped with a first connector 27, a second connector 28, and a third connector 29. One end of the first connector 27 passes through the first stationary contact 9, and the other end of the first connector 27 passes through the second stationary contact 14. The second connector 28 passes through a long rivet, and the third connector 29 passes through a short rivet. The first connector 27 is an input terminal, the second connector 28 is an output terminal one, and the third connector 29 is an output terminal two.

[0046] It should be noted that the lower end face of the housing 2 is provided with a first connector mounting groove, a second connector mounting groove and a third connector mounting groove. The first connector 27 is mounted on the first connector mounting groove, the second connector 28 is mounted on the second connector mounting groove, and the third connector 29 is mounted on the third connector mounting groove.

[0047] It should be noted that this utility model sets two independent first bimetallic strips 4 and second bimetallic strips 10, and through their respective independent first actuating rods 5 and second actuating rods 11, the temperature sensing action of the temperature sensing strip is transmitted to the first moving spring 6 and the second moving spring 12, so that the corresponding contacts open or close to realize the on and off action of the temperature control protector. Independent transmission avoids mutual interference, has good performance and strong practicality.

[0048] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model in any way. Those skilled in the art can readily implement this utility model based on the accompanying drawings and the above description. However, any modifications, alterations, or equivalent variations made by those skilled in the art without departing from the scope of the utility model's technical solution, utilizing the disclosed technical content, are considered equivalent embodiments of this utility model. Furthermore, any equivalent changes, alterations, or variations made to the above embodiments based on the essential technology of this utility model are still within the protection scope of this utility model's technical solution.

Claims

1. A novel snap-action temperature protector, characterized in that: It includes an aluminum cover (1), a housing (2), a guide frame (3), a first temperature control protection component and a second temperature control protection component. The housing (2), the guide frame (3), the first temperature control protection component and the second temperature control protection component are all located inside the aluminum cover (1). The lower end of the guide frame (3) is connected to the upper end of the housing (2). One end of the first temperature control protection component is movably connected to the guide frame (3), and the other end of the first temperature control protection component is connected to the housing (2). One end of the second temperature control protection component is movably connected to the guide frame (3), and the other end of the second temperature control protection component is connected to the housing (2).

2. The novel snap-action temperature protector according to claim 1, characterized in that: The first temperature control protection component includes a first bimetallic strip (4), a first actuating rod (5), and a first movable spring (6). The first bimetallic strip (4) is located above the guide frame (3). The upper end of the first actuating rod (5) is connected to the first bimetallic strip (4). The lower end of the first actuating rod (5) passes through the guide frame (3) and abuts against the first movable spring (6). The first movable spring (6) is fixed to the housing (2) by short rivets.

3. The novel snap-action temperature protector according to claim 2, characterized in that: The first temperature control protection component also includes a first moving contact (8) and a first stationary contact (9). The first moving contact (8) is located on the first moving spring (6), and the first stationary contact (9) is mounted on the housing (2) and is located below the first moving contact (8).

4. The novel snap-action temperature protector according to claim 3, characterized in that: The second temperature control protection component includes a second bimetallic strip (10), a second actuating rod (11), and a second moving spring (12). The second moving spring (12) is located between the guide frame (3) and the first moving spring (6). The second bimetallic strip (10) is located below the first bimetallic strip (4). The second actuating rod (11) is located on one side of the first actuating rod (5). The upper end of the second actuating rod (11) is connected to the second bimetallic strip (10). The lower end of the second actuating rod (11) passes through the guide rod and abuts against the second moving spring (12). The second moving spring (12) is fixed to the housing (2) by a long rivet.

5. The novel snap-action temperature protector according to claim 4, characterized in that: The second moving spring (12) has a through hole, the lower end of the first actuating rod (5) passes through the guide frame (3), and the through hole abuts against the first moving spring (6). The diameter of the through hole is larger than the diameter of the first actuating rod (5).

6. The novel snap-action temperature protector according to claim 5, characterized in that: The second temperature control protection component also includes a second moving contact (13) and a second stationary contact (14). The second moving contact (13) is located on the second moving spring (12), and the second stationary contact (14) is mounted on the housing (2) and is located below the second moving contact (13).

7. The novel snap-action temperature protector according to claim 6, characterized in that: The guide frame (3) is provided with a first movable hole (15), a second movable hole (16) and several through holes (17). The lower end of the first actuating rod (5) passes through the first movable hole (15) and abuts against the first moving spring (6). The lower end of the second actuating rod (11) passes through the second movable hole (16) and abuts against the second moving spring (12).

8. The novel snap-action temperature protector according to claim 7, characterized in that: The lower end of the guide frame (3) is provided with a protrusion (18) and several support seats (19), and the lower end of the support seats (19) is provided with several plug-in posts (20).

9. The novel snap-action temperature protector according to claim 8, characterized in that: The upper end of the housing (2) is provided with a protruding long support part (21), a protruding short support part (22), a contact support part (23) and a plurality of insertion holes (24). One end of the first moving spring (6) abuts against the short support part (22) and is fixed to the short support part (22) by a short rivet. One end of the second moving spring (12) abuts against the long support part (21) and is fixed to the long support part (21) by a long rivet. The upper end of the second stationary contact (14) is located on the contact support part (23). The insertion post (20) of the guide frame (3) is adapted to the insertion hole (24).

10. The novel snap-action temperature protector according to claim 9, characterized in that: The lower end of the housing (2) is equipped with a first connector (27), a second connector (28) and a third connector (29). One end of the first connector (27) is threaded through the first stationary contact (9), and the other end of the first connector (27) is threaded through the second stationary contact (14). The second connector (28) is threaded through the long rivet, and the third connector (29) is threaded through the short rivet.

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