Temperature compensation module and motor protection circuit breaker

Abstract

The utility model discloses a temperature compensation module and a motor protection circuit breaker, and relates to the technical field of electrical equipment, the temperature compensation module is installed on a switching device, and the temperature compensation module comprises a support, an adjusting assembly and a bimetallic assembly. The bracket has an accommodating cavity; the adjusting assembly is at least partially installed in the containing cavity, the adjusting assembly comprises a movable part rotationally connected to the support along a first rotating axis, and the position of the movable part is adjustable and can be locked to the adjusted position; the double-metal assembly is rotationally connected to the movable part along a second rotating axis, the second rotating axis and the first rotating axis are arranged in a spaced mode, and the double-metal assembly can move along with the movable part; when the position of the movable part is changed, the position between the second rotating axis and the first rotating axis is changed, and the movable area of the double-metal assembly moves along with the second rotating axis. According to the invention, the assembling efficiency of the corresponding switch device can be improved, the adaptability of the temperature compensation module can be higher, and the temperature compensation module can be adapted to products of different specifications of the same shell structure.

Description

Technical Field

[0001] This application relates to the technical field of electrical equipment, and particularly to a temperature compensation module and a motor protection circuit breaker. Background Art

[0002] In a switching device such as a motor protection circuit breaker system, when an overload current is detected and the power needs to be quickly cut off to protect the circuit and equipment, the thermal overload part senses the overload current and activates the bimetal sheet, causing it to bend under the high-temperature effect. This bending is not only a morphological disturbance but also forms a driving force.

[0003] With the help of the temperature compensation module, this series of disturbances and driving forces generated by the bending are precisely guided to the tripping mechanism, thus triggering the tripping mechanism of the circuit breaker and cutting off the circuit. This temperature compensation module can automatically adjust according to the change of the ambient temperature, correspondingly reducing the required travel of the bimetal sheet in a high-temperature environment and increasing it in a low-temperature environment, ensuring the precise operation of the circuit breaker under different temperature conditions and avoiding misoperation caused by temperature changes.

[0004] However, the current temperature compensation function part is often assembled as a separate part, which not only increases the complexity of the production process but also may lead to production material mixing or assembly errors due to unskilled worker operation. Summary of the Utility Model

[0005] This application provides a temperature compensation module and a motor protection circuit breaker, which can improve the assembly efficiency of the corresponding switching device, and can make the adaptability of the temperature compensation module higher, which can be adapted to products with different specifications in the same housing structure, and reduce the overall cost of the switching device.

[0006] In a first aspect, this application provides a temperature compensation module, which is installed in a switching device. The temperature compensation module includes a bracket, an adjustment component, and a bimetal component.

[0007] The bracket has a receiving cavity; at least part of the adjustment component is installed in the receiving cavity. The adjustment component includes a movable part rotatably connected to the bracket along a first rotation axis. The position of the movable part is adjustable and can be locked to the adjusted position.

[0008] The bimetal component is rotatably connected to the movable part along a second rotation axis. The second rotation axis is spaced from the first rotation axis, and the bimetal component can move with the movable part.

[0009] When the position of the movable part changes, the position between the second rotation axis and the first rotation axis changes, and the movement area of the bimetal component moves along with the second rotation axis.

[0010] The temperature compensation module mainly includes three parts: a bracket, an adjustment component, and a bimetal component. These three components are tightly connected together through the bracket, forming a highly integrated module structure. This structural design reduces the number of parts that need to be changed during the assembly process of the switching device, thereby improving the assembly efficiency and reducing the overall cost of the switching device.

[0011] The bracket is the foundation of this module and has a receiving cavity. The adjustment component is at least partially installed in this receiving cavity. The adjustment component includes a movable part that rotates along a first rotation axis. The movable part can adjust its position and can be locked in the adjusted position. The receiving cavity is not only used to install the adjustment component but also used to install the bimetal component. The movable part of the adjustment component can be rotatably connected to the bracket along the first rotation axis. When the movable part is adjusted and locked, the relative position between the movable part and the bracket can be adjusted and changed as needed.

[0012] The bimetal component is rotatably connected to the movable part along a second rotation axis, and there is a certain interval between the second rotation axis and the first rotation axis. The bimetal component can move along with the movement of the movable part; the bimetal component is connected to the movable part, and when the position of the movable part changes, the position of the bimetal component will also change accordingly. By adjusting the adjustment component, the position of the entire bimetal component can be changed, thereby achieving position compensation for the bimetal component.

[0013] The temperature compensation module can assemble the adjustment component and the bimetal component together through the bracket to form a relatively integrated module structure. This can reduce the number of parts modified during the assembly process of the corresponding switching device, improve the assembly efficiency, and can make the temperature compensation module set as a component with higher adaptability, which can be adapted to products with different specifications in the same housing structure, reducing the overall cost of the switching device.

[0014] Temperature compensation modules of different specifications can also be installed by setting corresponding assembly cavities or assembly grooves in this application. This application can integrate the parts of the entire temperature compensation module into an independent module, which can be adapted to different specifications under the same housing when manufacturing products.

[0015] In some examples, the adjustment component further includes an adjusting member that is connected to or abuts against the movable part. The adjusting member includes at least two adjustable positions that can be switched. When the movable part cooperates with different adjustable positions of the adjusting member, the relative position between the second rotation axis and the first rotation axis is different.

[0016] The adjusting part can specifically include at least two adjusting positions during the adjustment process, and each adjusting position corresponds to a different position of the movable part. After the position of the movable part is different, the position of the corresponding second rotation axis will change, and the movable range of the double metal component connected by rotation on the second rotation axis will also be adjusted and compensated. At this time, the relative position of the second rotation axis is different from the first rotation axis.

[0017] In some examples, the first end of the movable member is rotatably connected to the bracket, the second end of the movable member is a free end, and the adjusting member is adapted to the second end of the movable member or the middle part of the movable member;

[0018] The adjusting member is rotatably connected to the bracket. The adjusting member is a cam structure. The movable member always abuts against the outer peripheral surface of the cam structure. Different rotational positions of the cam structure relative to the bracket correspond to different adjusting positions.

[0019] One end of the movable member is connected to the bracket by a rotational connection, and the other end of the movable member can be called a free end and can move relative to the first end. The adjusting member can be adapted and connected to the second end of the movable member or the middle part of the movable member.

[0020] The adjusting member is specifically connected to the bracket by rotation, and the adjusting member can be provided with a cam structure. In the cam structure, the movable member is always in contact with the outer peripheral surface of the cam structure. Moreover, when the cam structure is in different rotation positions relative to the bracket, it will correspond to different adjustment positions.

[0021] The bracket of the present invention can not only fix and compensate the bimetallic component, but also realize linkage with the cam structure when the adjusting member cooperates with the movable member. In the contact area between the cam structure and the movable member, the original point contact mode is improved to a line contact mode, which greatly increases the contact area, thereby improving stability and reliability.

[0022] In some examples, a first limiting protrusion is provided on the adjusting member, and a clearance hole matched with the first limiting protrusion is opened on the bracket, and the first limiting protrusion can pass through the clearance hole and move in the accommodating cavity.

[0023] After the first limiting protrusion is provided on the adjusting member. The first limiting protrusion can limit the adjusting member in the accommodating cavity of the bracket, so as to ensure that the adjusting member will not arbitrarily escape from the accommodating cavity. In order to enable the first limiting protrusion to operate effectively, a clearance hole is processed in the bracket part. The size and shape of the clearance hole here match the first limiting protrusion, ensuring that the first limiting protrusion can smoothly pass through the hole and move freely within a limited range in the accommodating cavity inside the bracket.

[0024] When the first limiting protrusion passes through the clearance hole and enters the accommodating cavity, it can move flexibly in the accommodating cavity, and at the same time, the position of the adjusting member can be more accurately defined. Such a design of the present application largely prevents the risk of the adjusting member accidentally detaching from the bracket during use. Once the position of the adjusting member is fixed, the structural stability of the entire module will be improved. The above-mentioned limiting mechanism not only improves the durability of the product, but also increases the safety during use, thereby bringing a more reliable user experience to users.

[0025] In some examples, a second limiting protrusion matched with the first limiting protrusion is provided on the inner wall of the accommodating cavity, and during the rotation of the adjusting member relative to the bracket, the first limiting protrusion moves in the accommodating cavity;

[0026] When the first limiting protrusion moves to abut against the first side of the second limiting protrusion, the distance between the movable part and the inner bottom wall of the bracket is the largest, and the double metal component is in a small gear position;

[0027] When the first limiting protrusion moves to abut against the second side of the second limiting protrusion, the distance between the movable part and the inner bottom wall of the bracket is the smallest, and the double metal component is in the large gear position.

[0028] The present application can provide a second limiting protrusion on the inner wall of the accommodating cavity that matches the first limiting protrusion. During the rotation of the adjusting member relative to the bracket, the first limiting protrusion can move in the accommodating cavity. Through the cooperation of the first limiting protrusion and the second limiting protrusion, the adjustment process of the adjusting member can be made more stable and reliable.

[0029] Specifically, when the first limiting protrusion moves to abut the first side surface of the second limiting protrusion, the distance between the movable part and the inner bottom wall of the bracket reaches the maximum, and at this time, the double gold component is in the small gear position. Conversely, when the first limiting protrusion moves to abut the second side surface of the second limiting protrusion, the distance between the movable part and the inner bottom wall of the bracket reaches the minimum, and at this time, the double gold component is in the large gear position.

[0030] In some examples, the second end of the movable member abuts against the outer peripheral surface of the cam structure, and a convex ridge is provided at the abutting position between the movable member and the cam structure.

[0031] The convex edge can be a semi-circular half-cylinder with a semicircular cross-section. The contact position between the cam structure and the movable part is specifically set on a semicircular surface. The semicircular surface can also be replaced by other types of surfaces, such as a parabolic surface, as needed.

[0032] After the part of the bracket in the present application that contacts the cam structure is designed to be a whole cylindrical semicircle, the original point contact of the movable part when contacting the cam can be changed to line contact, thereby enhancing the adjustment accuracy.

[0033] In some examples, first rotation protrusions are respectively arranged on two opposite sides of the first end of the movable member, first shaft holes are respectively formed on two opposite side walls of the bracket, and the first rotation protrusions are rotationally connected to the first shaft holes.

[0034] There may be two first rotation protrusions, one first rotation protrusion is respectively arranged on two opposite sides of the movable member, and a conical guiding structure is arranged on at least one first rotation protrusion. The assembly efficiency of the first rotation protrusion can be improved through the conical guiding structure, and the first rotation protrusion can be quickly assembled into the first shaft hole.

[0035] At one end of the movable member, first rotation protrusions can be arranged at positions on two opposite sides. At the same time, first shaft holes are accurately formed on two opposite side walls of the bracket. The function of the first rotation protrusion is to form a rotational connection with the first shaft hole, so that the movable member can be rotationally matched with the bracket. Among them, the first rotation axis can accurately correspond to the central rotation axis of the first rotation protrusion. The main function of the first shaft hole is to provide support for the installation of the first rotation protrusion and ensure the rotational connection of the first rotation protrusion.

[0036] In some examples, the bimetal component is rotationally connected to the middle part of the movable member, and second rotation protrusions are respectively arranged on two opposite sides of the middle part of the movable member;

[0037] Two opposite ear plate structures are arranged on the bimetal component, second shaft holes are formed on the ear plate structures, and the second shaft holes are rotationally connected to the second rotation protrusions.

[0038] The bimetal component is connected to the middle part of the movable member in a rotatable manner. Specifically, second rotation protrusions are respectively designed on two opposite sides of the middle part of the movable member. The second rotation protrusion plays a role in connecting the movable member and the bimetal component, enabling them to rotate relative to each other.

[0039] In addition, two opposite ear plate structures can be arranged on the bimetal component, second shaft holes are formed on the ear plate structures, and these second shaft holes are connected to the second rotation protrusions, enabling the second rotation protrusions to be installed in the second shaft holes on the ear plate structures. Such a design not only improves the assembly stability but also makes the assembly of the bimetal component more flexible.

[0040] In some examples, the bimetal component includes a bimetal main body and a mounting main body. The bimetal main body is fixedly connected to the mounting main body, the mounting main body is rotationally connected to the movable member, and a part of the mounting main body extends towards the position of the lock and forms a lever structure.

[0041] The bimetal main body and the mounting main body can be fixedly connected together by connection methods such as riveting and welding. The tail of the mounting main body has the above-mentioned lever structure, and the tripping mechanism in the corresponding switch device can be tripped through the lever structure.

[0042] The bimetal component includes two parts: the bimetal body and the mounting body. The bimetal body and the mounting body are tightly combined by a certain fixing method, ensuring the stability of the connection between the bimetal body and the mounting body. The mounting body is connected to the movable part in a rotational manner, enabling the movable part to move flexibly. In particular, a part of the mounting body extends towards the direction of the latch and forms a lever structure.

[0043] The combination between the bimetal body and the mounting body can adopt various methods, such as riveting, welding, etc. These methods can all provide sufficient strength to prevent the component from loosening during operation. After designing a lever structure at the tail of the mounting body, the tripping mechanism in the corresponding switching device can be driven to perform a tripping action through mechanical linkage.

[0044] In a second aspect, the present application also provides a motor protection circuit breaker, including the above-mentioned temperature compensation module and a housing, and the temperature compensation module is arranged inside the housing.

[0045] The motor protection circuit breaker with the above-mentioned temperature compensation module has a lower cost. Specifically, the stable compensation module can assemble the adjusting component and the bimetal component together through a bracket to form a relatively integrated module structure, improving the assembly efficiency of the corresponding switching device, and the temperature compensation module can be set as a component with higher adaptability, which can be adapted to products with different specifications in the same housing architecture, reducing the overall cost of the switching device.

[0046] The motor protection circuit breaker of the present application can also be replaced with other types of switching devices. As long as a switching device with a bimetal structure is needed, the above-mentioned temperature compensation module of the present application can be applied. BRIEF DESCRIPTION OF THE DRAWINGS

[0047] In order to more clearly illustrate the technical solutions in the present application or the prior art, the following will briefly introduce the drawings required for the description of the examples or the prior art. Obviously, the drawings in the following description are only some examples of the present application. For those skilled in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0048] Figure 1 It is a schematic structural diagram of the temperature compensation module in an example of the present application;

[0049] Figure 2 It is an exploded schematic structural diagram of the temperature compensation module in an example of the present application;

[0050] Figure 3 It is a schematic cross-sectional structural diagram of the temperature compensation module in a small gear position in an example of the present application;

[0051] Figure 4Schematic structural sectional view of the temperature compensation module in the high gear position in an example of this application;

[0052] Figure 5 Schematic structural view of the adjusting member in the temperature compensation module in an example of this application;

[0053] Figure 6 Schematic structural view of the bracket in the temperature compensation module in an example of this application;

[0054] Figure 7 Schematic structural view of the movable member in the temperature compensation module in an example of this application;

[0055] Figure 8 Schematic structural view of the movable member from another perspective in the temperature compensation module in an example of this application;

[0056] Figure 9 Schematic structural view of the bimetal component in the temperature compensation module in an example of this application;

[0057] Figure 10 Schematic structural view of the bimetal component from another perspective in the temperature compensation module in an example of this application.

[0058] Reference numerals:

[0059] 100, bracket; 110, first side wall; 111, assembly hole; 112, relief hole; 120, bottom wall; 130, second side wall; 131, limiting hole; 140, accommodating cavity; 150, first shaft hole; 151, assembly groove; 160, clamping structure;

[0060] 200, adjusting assembly; 210, movable member; 211, first rotating protrusion; 2111, conical guiding structure; 212, second rotating protrusion; 213, guiding chamfer; 214, convex rib; 220, adjusting member; 230, first limiting protrusion; 240, second limiting protrusion; 250, first rotation axis;

[0061] 300, bimetal component; 310, bimetal main body; 320, mounting main body; 321, ear plate structure; 322, lever structure; 330, second rotation axis. Detailed implementation manners

[0062] In order to make the objectives, technical solutions and advantages of this application clearer, the following further elaborates on this application in combination with the accompanying drawings and examples. It should be understood that the specific examples described herein are only used to explain this application and are not used to limit this application.

[0063] To solve the above technical problems, please refer to Figures 1 - 10As shown in the figure, the first aspect of the present application proposes a temperature compensation module, which can assemble the adjustment component 200 and the bimetal component 300 together through the bracket 100 to form a relatively integrated module structure, improving the assembly efficiency of the corresponding switching device, and making the temperature compensation module have higher adaptability, which can be adapted to products with different specifications in the same housing structure, reducing the overall cost of the switching device.

[0064] Referring to Figures 1 - 4 As shown in the figure, in some examples, the temperature compensation module is installed on the switching device. The temperature compensation module includes a bracket 100, an adjustment component 200, and a bimetal component 300. The temperature compensation module can assemble the adjustment component 200 and the bimetal component 300 together through the bracket 100 to form a relatively integrated module structure, which can reduce the number of parts modified during the assembly process of the corresponding switching device, improve the assembly efficiency, and make the temperature compensation module a component with higher adaptability, which can be adapted to products with different specifications in the same housing structure, reducing the overall cost of the switching device.

[0065] Temperature compensation modules of different specifications can also be installed in the present application by setting corresponding assembly cavities or assembly grooves 151. The present application can integrate the parts of the entire temperature compensation module into an independent module, which can be adapted to different specifications under the same housing during the processing and production of products.

[0066] The bracket 100 has a receiving cavity 140; at least a part of the adjustment component 200 is installed in the receiving cavity 140. The adjustment component 200 includes a movable member 210 rotatably connected to the bracket 100 along a first rotation axis 250. The position of the movable member 210 is adjustable and can be locked to the adjusted position; the receiving cavity 140 is used to install the adjustment component 200 and the bimetal component 300. The movable member 210 of the adjustment component 200 can be rotatably connected to the bracket 100 along the first rotation axis 250. After the movable member 210 is adjustable and can be locked, the relative position between the movable member 210 and the bracket 100 can be adjusted and changed as needed.

[0067] The bimetal component 300 is rotatably connected to the movable member 210 along a second rotation axis 330. The second rotation axis 330 is spaced from the first rotation axis 250. The bimetal component 300 can move with the movable member 210; the bimetal component 300 is connected to the movable member 210. After the position of the movable member 210 changes, the position of the bimetal component 300 will change accordingly. Furthermore, by adjusting the adjustment component 200, the position of the entire bimetal component 300 can be changed, realizing position compensation for the bimetal component 300.

[0068] Specifically, when the position of the movable member 210 changes, the position between the second rotation axis 330 and the first rotation axis 250 changes, and the active area of the bimetal assembly 300 moves along with the second rotation axis 330. The active range of the bimetal assembly 300 before the position change is different from that after the position change.

[0069] Through the tight assembly of the bracket 100, the adjustment assembly 200, and the bimetal assembly 300, a highly integrated modular structure is formed. This design significantly improves the assembly efficiency of the switching device and reduces the overall cost of the switching device to a certain extent.

[0070] The temperature compensation module mainly includes three parts: the bracket 100, the adjustment assembly 200, and the bimetal assembly 300. These three components are tightly connected together through the bracket 100 to form a highly integrated modular structure. This structural design reduces the number of parts that need to be changed during the assembly of the switching device, thereby improving the assembly efficiency and reducing the overall cost of the switching device.

[0071] The bracket 100 is the basis of this module and has a receiving cavity 140. The adjustment assembly 200 is at least partially installed in this receiving cavity 140. The adjustment assembly 200 includes a movable member 210 that rotates along the first rotation axis 250. The movable member 210 can adjust its position and can be locked in the adjusted position. The receiving cavity 140 is not only used to install the adjustment assembly 200 but also used to install the bimetal assembly 300. The movable member 210 of the adjustment assembly 200 can be rotationally connected to the bracket 100 along the first rotation axis 250. When the movable member 210 is adjusted and locked, the relative position between the movable member 210 and the bracket 100 can be adjusted and changed as needed.

[0072] The bimetal assembly 300 is rotationally connected to the movable member 210 along the second rotation axis 330, and there is a certain interval between the second rotation axis 330 and the first rotation axis 250. The bimetal assembly 300 can move along with the movement of the movable member 210; the bimetal assembly 300 is connected to the movable member 210. When the position of the movable member 210 changes, the position of the bimetal assembly 300 will also change accordingly. By adjusting the adjustment assembly 200, the position of the entire bimetal assembly 300 can be changed, thereby achieving position compensation for the bimetal assembly 300.

[0073] Specifically, when the position of the movable member 210 changes, the position between the second rotation axis 330 and the first rotation axis 250 also changes, and the active area of the bimetal assembly 300 changes with the movement of the second rotation axis 330. Before the position change, the active range of the bimetal assembly 300 is different from that after the position change. This design makes the position adjustment of the bimetal assembly 300 more flexible, thereby improving the performance and reliability of the switching device.

[0074] The temperature compensation module can be snap-fitted to the housing of the corresponding switching device through the snap-fitting structure 160, or the temperature compensation module can be connected to the housing of the corresponding switching device by means of bolts, screws, bonding, magnetic attraction, etc. The specific assembly method is set according to actual needs, and is not limited to the implementation method of the snap-fitting structure 160 in the drawings.

[0075] The bracket 100 includes a first side wall 110, a bottom wall 120, and a second side wall 130 that are connected to each other. The first side wall 110, the bottom wall 120, and the second side wall 130 enclose a receiving cavity 140, and the main body portion of the movable member 210 is located in the receiving cavity 140.

[0076] Referring to Figures 1 - 5 As shown, in some examples, the adjusting assembly 200 further includes an adjusting member 220 (refer to Figure 5 ), the adjusting member 220 is connected or abuts against the movable member 210, the adjusting member 220 includes at least two adjustable positions that can be switched, and when the movable member 210 cooperates with different adjustable positions of the adjusting member 220, the relative positions of the second rotation axis 330 and the first rotation axis 250 are different.

[0077] The adjusting member 220 is used to adjust the position of the movable member 210. By connecting, the change in the position of the adjusting member 220 can be used to drive the movement of the movable member 210, thereby adjusting the position of the movable member 210; by abutting, the relative actions such as squeezing, pressing, pushing, and pulling of the adjusting member 220 can be used to drive the movement of the movable member 210, thereby adjusting the position of the movable member 210; the cooperation method between the adjusting member 220 and the movable member 210 is set according to needs, and is not limited to the above several types.

[0078] During the adjustment process, the adjusting member 220 can specifically include at least two adjustable positions. Each adjustable position corresponds to a different position of the movable member 210. After the position of the movable member 210 changes, the position of the corresponding second rotation axis 330 will change. Depending on the second rotation axis 330, the active range of the bimetal assembly 300 rotationally connected will also be adjusted and compensated. At this time, the relative positions of the second rotation axis 330 and the first rotation axis 250 are different.

[0079] The above-mentioned adjusting member 220 is connected to or abuts against the movable member 210. The adjusting member 220 has at least two different adjustable positions that can be switched. When the movable member 210 cooperates with these different adjustable positions of the adjusting member 220, the relative position between the second rotation axis 330 and the first rotation axis 250 can be changed. This design allows the adjusting member 220 to adjust the position of the movable member 210 more precisely.

[0080] The main function of the adjusting member 220 is to adjust the position of the movable member 210. It can be connected in ways such as fixed member connection, transmission mechanism connection, pin-hole fit connection, etc. By using the change in the position of the adjusting member 220 to drive the movable member 210, the position adjustment of the movable member 210 can be achieved. In addition, in the way of abutting, the adjusting member 220 can drive the movable member 210 through relative actions such as squeezing, pressing, pushing, and pulling, thereby adjusting the position of the movable member 210. The cooperation mode between the adjusting member 220 and the movable member 210 can be set according to actual needs, not limited to the several ways mentioned above.

[0081] During the adjustment process, the adjusting member 220 can specifically include at least two adjustable positions. Each adjustable position corresponds to a different position of the movable member 210. When the position of the movable member 210 changes, the position of the corresponding second rotation axis 330 also changes. The bimetal assembly 300 is rotatably connected to the movable member 210 relative to the second rotation axis 330, and its movement range will also be adjusted and compensated along with the movable member 210. In this case, the relative position between the second rotation axis 330 and the first rotation axis 250 changes. This design makes the adjusting member 220 highly flexible and precise, capable of meeting various complex adjustment requirements.

[0082] Referring to Figures 1 - 4 As shown, in some examples, the first end of the movable member 210 is rotatably connected to the bracket 100, the second end of the movable member 210 is a free end, and the adjusting member 220 is adapted to the second end or the middle part of the movable member 210;

[0083] The adjusting member 220 is rotatably connected to the bracket 100. The adjusting member 220 is a cam structure. The movable member 210 always abuts against the outer peripheral surface of the cam structure. Different rotational positions of the cam structure relative to the bracket 100 correspond to different adjustable positions.

[0084] The bracket 100 of the present application can fix and compensate the bimetal assembly 300. Cooperating with the movable member 210, it can be in contact and linkage with the cam structure. The contact part between the cam structure and the movable member 210 is set from the original point contact to line contact, having a larger contact area and higher stability.

[0085] One end of the movable member 210 is connected to the bracket 100 in a rotatable connection manner. The other end of the movable member 210 can be referred to as a free end and is capable of moving relative to the first end. The adjusting member 220 can be adapted to and connected to the second end or the middle part of the movable member 210.

[0086] Specifically, the adjusting member 220 is connected to the bracket 100 by rotation, and the adjusting member 220 can be provided with a cam structure. In the cam structure, the movable member 210 is always in contact with the outer peripheral surface of the cam structure. Moreover, at different rotational positions of the cam structure relative to the bracket 100, different adjustment positions will be corresponding.

[0087] In the present invention, the bracket 100 can not only fix and compensate the bimetal component 300, but also, when the adjusting member 220 cooperates with the movable member 210, realize linkage with the cam structure. In the contact area between the cam structure and the movable member 210, the original point contact mode is improved to a line contact mode, which greatly increases the contact area, thereby improving the stability and reliability.

[0088] Refer to Figure 5 As shown, in some examples, a first limiting protrusion 230 is provided on the adjusting member 220, and a relief hole 112 adapted to the first limiting protrusion 230 is formed on the bracket 100. The first limiting protrusion 230 can pass through the relief hole 112 and move within the receiving cavity 140. The first limiting protrusion 230 can limit the position of the adjusting member 220 to prevent the adjusting member 220 from accidentally detaching from the bracket 100, ensuring the stability of the whole module.

[0089] After the first limiting protrusion 230 is provided on the adjusting member 220, the first limiting protrusion 230 can limit the adjusting member 220 within the receiving cavity 140 of the bracket 100, thereby ensuring that the adjusting member 220 will not randomly detach from the receiving cavity 140. In order to enable the first limiting protrusion 230 to operate effectively, a relief hole 112 is machined in part of the bracket 100. The size and shape of the relief hole 112 here match those of the first limiting protrusion 230, ensuring that the first limiting protrusion 230 can smoothly pass through the hole and freely move within a limited range in the receiving cavity 140 inside the bracket 100.

[0090] When the first limiting protrusion 230 passes through the clearance hole 112 and enters the accommodating cavity 140, it can move flexibly in the accommodating cavity 140, and at the same time, the position of the adjusting member 220 is more accurately limited. Such a design of the present application largely prevents the risk of the adjusting member 220 accidentally detaching from the bracket 100 during use. Once the position of the adjusting member 220 is fixed, the structural stability of the entire module will be improved. The above-mentioned limiting mechanism not only improves the durability of the product, but also increases the safety during use, thereby bringing a more reliable user experience to the user.

[0091] Reference Figure 6 As shown, in some examples, a second limiting protrusion 240 that is compatible with the first limiting protrusion 230 is opened on the inner wall of the accommodating cavity 140, and during the rotation of the adjusting member 220 relative to the bracket 100, the first limiting protrusion 230 moves in the accommodating cavity 140; the cooperation between the first limiting protrusion 230 and the second limiting protrusion 240 can make the adjustment process of the adjusting member 220 more stable and reliable.

[0092] When the first limiting protrusion 230 moves to abut against the first side of the second limiting protrusion 240, the distance between the movable member 210 and the inner bottom wall 120 of the bracket 100 is the largest, and the double metal assembly 300 is in a small gear position; Figure 3 .

[0093] When the first limiting protrusion 230 moves to abut against the second side of the second limiting protrusion 240, the distance between the movable member 210 and the inner bottom wall 120 of the bracket 100 is the smallest, and the double metal component 300 is in the large gear position. Figure 4 .

[0094] The present application may provide a second limiting protrusion 240 adapted to the first limiting protrusion 230 on the inner wall of the accommodating cavity 140. During the rotation of the adjusting member 220 relative to the bracket 100, the first limiting protrusion 230 may move within the accommodating cavity 140. Through the cooperation of the first limiting protrusion 230 and the second limiting protrusion 240, the adjustment process of the adjusting member 220 may be made more stable and reliable.

[0095] Specifically, when the first limiting protrusion 230 moves to abut against the first side surface of the second limiting protrusion 240, the distance between the movable member 210 and the inner bottom wall 120 of the bracket 100 reaches the maximum. At this time, the dual metal component 300 is in the small gear position. Figure 3 Please refer to this location for details.

[0096] On the contrary, when the first limiting protrusion 230 moves to abut the second side surface of the second limiting protrusion 240, the distance between the movable member 210 and the inner bottom wall 120 of the bracket 100 reaches the minimum. At this time, the dual metal component 300 is in the large gear position.Figure 4 Specifically refer to this position.

[0097] Through such a design, the adjusting member 220 can have better stability and reliability during the adjustment process, and at the same time, the operation is made more convenient. This design has high practical value in practical applications.

[0098] Refer to Figure 7 As shown, in some examples, the second end of the movable member 210 abuts against the outer peripheral surface of the cam structure, and a convex rib 214 is provided at the abutting position between the movable member 210 and the cam structure.

[0099] The convex rib 214 can specifically be a semi-cut cylinder with a semi-circular cross-section. The abutting position between the cam structure and the movable member 210 is specifically provided on the semi-circular curved surface, and the semi-circular curved surface can also be replaced with other types of curved surfaces according to needs, such as a parabolic curved surface, etc.

[0100] After the part of the bracket 100 in the present application that contacts the cam structure is designed into an entire semi-cylindrical shape, when the movable member 210 contacts the cam, the original point contact can be changed to a line contact, strengthening the adjustment accuracy.

[0101] In the above structure, one end of the movable member 210 is in close contact with the outer peripheral surface of the cam structure, and a raised rib-like structure, that is, the convex rib 214, is designed at the corresponding contact position of the movable member 210. The convex rib 214 can be designed with a semi-circular cross-section, forming a shape of a semi-cut cylinder. Specifically, the cam structure and the movable member 210 that cooperates with it are actually in contact with this semi-circular curved surface at the contact position. According to actual application requirements, this semi-circular curved surface can also be replaced by other shaped curved surfaces, such as a parabolic-shaped curved surface, etc.

[0102] Such a design enables the original point contact to be changed to a line contact when the movable member 210 contacts the cam, thereby significantly improving the adjustment accuracy. This design not only improves the contact stability but also makes the adjustment process smoother, further enhancing the performance and reliability of the entire mechanism.

[0103] The outer peripheral surface of the cam structure is a helically tapered curved surface with respect to its own rotation axis. The position on the outer peripheral surface of the cam structure that is closest to the rotation axis is the first position, and the position on the outer peripheral surface of the cam structure that is farthest from the rotation axis is the second position. The intersection area of the first position and the second position forms a clamping step, and the convex rib 214 can be clamped to the clamping step to form a limit.

[0104] Refer to Figure 7 And Figure 8As shown, in some examples, first rotation protrusions 211 are respectively provided on two sides opposite to the first end of the movable member 210. First shaft holes 150 are respectively formed on two opposite side walls of the bracket 100, and the first rotation protrusions 211 are rotatably connected to the first shaft holes 150. The first rotation protrusions 211 are used to rotatably connect the movable member 210 to the bracket 100, and the first rotation axis 250 corresponds to the rotation central axis of the first rotation protrusions 211. The first shaft holes 150 are used to mount the first rotation protrusions 211.

[0105] There may be two first rotation protrusions 211, with one first rotation protrusion 211 provided on each of the two opposite sides of the movable member 210. A conical guiding structure 2111 is provided on at least one of the first rotation protrusions 211. The conical guiding structure 2111 can improve the assembly efficiency of the first rotation protrusions 211 and enable the first rotation protrusions 211 to be quickly assembled into the first shaft holes 150.

[0106] On one end of the movable member 210, first rotation protrusions 211 can be provided at positions on two opposite sides. At the same time, first shaft holes 150 are accurately formed on two opposite side walls of the bracket 100. The function of the first rotation protrusions 211 is to form a rotational connection with the first shaft holes 150, so that the movable member 210 can be rotationally matched with the bracket 100. Among them, the first rotation axis 250 can accurately correspond to the central rotation axis of the first rotation protrusions 211. The main function of the first shaft holes 150 is to provide support for the installation of the first rotation protrusions 211 and ensure the rotational connection of the first rotation protrusions 211.

[0107] The first rotation protrusions 211 can be provided in pairs, that is, one first rotation protrusion 211 is provided on each of the two sides of the movable member 210 to ensure the balance and stability of rotation. In addition, to further improve the assembly efficiency and convenience, a conical guiding structure 2111 is designed on at least one of the first rotation protrusions 211. Such a design can utilize the characteristics of the conical guiding structure 2111 to enable the first rotation protrusions 211 to be quickly and accurately assembled into the first shaft holes 150. In this way, not only is the assembly speed greatly improved, but also the assembly accuracy is greatly enhanced, ensuring the operation efficiency and stability of the entire device.

[0108] An assembly groove 151 adapted to the first shaft hole 150 is formed on at least one of the two side walls of the bracket 100. The assembly groove 151 communicates with the corresponding first shaft hole 150, and the first rotation protrusion 211 can be connected to the corresponding first shaft hole 150 through the assembly groove 151. The assembly groove 151 can be set as a groove with a flared opening, and the first rotation protrusion 211 can be quickly and stably assembled through the assembly groove 151.

[0109] Refer to Figure 9 andFigure 10 As shown, in some examples, the bimetal component 300 is rotatably connected to the middle part of the movable member 210, and second rotation protrusions 212 are respectively arranged on two opposite sides of the middle part of the movable member 210;

[0110] Two opposite ear plate structures 321 are arranged on the bimetal component 300, and second shaft holes are formed in the ear plate structures 321, and the second shaft holes are rotatably connected to the second rotation protrusions 212.

[0111] The second rotation protrusions 212 are used to rotatably connect the movable member 210 and the bimetal component 300, and the second rotation axis 330 corresponds to the rotation central axis of the second rotation protrusions 212. The second shaft holes are used to install the second rotation protrusions 212. The ear plate structures 321 in the bimetal component 300 can improve the assembly stability and make the assembly of the bimetal component 300 more flexible.

[0112] The bimetal component 300 is connected to the middle part of the movable member 210 in a rotatable manner. Specifically, second rotation protrusions 212 are respectively designed on two opposite sides of the middle part of the movable member 210. The second rotation protrusions 212 play a role in connecting the movable member 210 and the bimetal component 300 together, enabling them to rotate relative to each other.

[0113] In addition, two opposite ear plate structures 321 can be arranged on the bimetal component 300, and second shaft holes are formed in the ear plate structures 321. These second shaft holes are connected to the second rotation protrusions 212, enabling the second rotation protrusions 212 to be installed in the second shaft holes in the ear plate structures 321. Such a design not only improves the assembly stability but also makes the assembly of the bimetal component 300 more flexible.

[0114] A guiding chamfer 213 adapted to the ear plate structure 321 can be formed on the second rotation protrusions 212, and the guiding chamfer 213 is used to guide the assembly of the ear plate structure 321, thereby improving the assembly efficiency of the ear plate structure 321.

[0115] Referring to Figure 9 and Figure 10 As shown, in some examples, the bimetal component 300 includes a bimetal main body 310 and a mounting main body 320. The bimetal main body 310 is fixedly connected to the mounting main body 320. The mounting main body 320 is rotatably connected to the movable member 210, and a part of the mounting main body 320 extends toward the position of the buckle and forms a lever structure 322.

[0116] The bimetal main body 310 and the mounting main body 320 can be fixedly connected together by connection means such as riveting and welding. The tail of the mounting main body 320 is provided with the above lever structure 322, and the tripping mechanism in the corresponding switching device can be tripped by the lever structure 322.

[0117] The bimetal component 300 includes two parts: the bimetal body and the mounting body 320. The bimetal body and the mounting body 320 are tightly combined through a certain fixing method, ensuring the stability of the connection between the bimetal body and the mounting body 320. The mounting body 320 is connected to the movable part 210 in a rotating manner, enabling the movable part 210 to move flexibly. In particular, a part of the mounting body 320 extends towards the direction of the lock and forms a lever structure 322.

[0118] The combination between the bimetal body and the mounting body 320 can adopt various methods, such as riveting, welding, etc. These methods can all provide sufficient strength to prevent the components from loosening during operation. After the lever structure 322 is designed at the tail of the mounting body 320, the tripping mechanism in the corresponding switching device can be driven to perform a tripping action through a mechanical linkage method. Such a design makes the entire mechanism more convenient to operate and improves its reliability at the same time.

[0119] In a second aspect, the present application also provides a motor protection circuit breaker, including the above-mentioned temperature compensation module and a housing, and the temperature compensation module is arranged inside the housing.

[0120] The motor protection circuit breaker with the above-mentioned temperature compensation module has a lower cost. Specifically, the stable compensation module can assemble the adjusting component 200 and the bimetal component 300 together through the bracket 100 to form a relatively integrated module structure, improving the assembly efficiency of the corresponding switching device, and the temperature compensation module can be set as a component with higher adaptability, which can be adapted to products with different specifications in the same housing structure, reducing the overall cost of the switching device.

[0121] The motor protection circuit breaker of the present application can also be replaced with other types of switching devices. As long as a switching device with a bimetal structure is required, the above-mentioned temperature compensation module of the present application can be applied.

[0122] In the drawings of the present application, the same or similar reference numerals correspond to the same or similar components; in the description of the present application, it should be understood that if there are terms such as "upper", "lower", "left", "right", etc. indicating the orientation or positional relationship, they are based on the orientation or positional relationship shown in the drawings. This is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or component referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, the terms describing the positional relationship in the drawings are only for illustrative purposes and cannot be understood as a limitation of this patent. For those of ordinary skill in the art, the specific meanings of the above terms can be understood according to specific circumstances.

[0123] The above are only the preferred examples of the present application and are not intended to limit the present application. Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present application should be included in the protection scope of the present application.

Claims

1. A temperature compensation module, characterized in that: Installed on a switch device, the temperature compensation module comprises: A bracket having a receiving cavity; an adjustment assembly, at least partially mounted in the accommodating cavity, the adjustment assembly comprising a movable member rotatably connected to the bracket along a first rotation axis, the position of the movable member being adjustable and capable of being locked to an adjusted position; A bimetal component is rotatably connected to the movable part along a second rotation axis, the second rotation axis is spaced apart from the first rotation axis, and the bimetal component can move with the movable part; When the position of the movable part changes, the position between the second rotation axis and the first rotation axis changes, and the active area of ​​the bimetallic component moves along with the second rotation axis.

2. The temperature compensation module according to claim 1, characterized in that: The adjustment assembly also includes an adjustment member, which is connected to or abuts against the movable member, and the adjustment member includes at least two switchable adjustment positions. When the movable member cooperates with different adjustment positions of the adjustment member, the relative positions of the second rotation axis and the first rotation axis are different.

3. The temperature compensation module according to claim 2, characterized in that: The first end of the movable member is rotatably connected to the bracket, the second end of the movable member is a free end, and the adjusting member is adapted to the second end of the movable member or the middle part of the movable member; The adjusting member is rotatably connected to the bracket. The adjusting member is a cam structure. The movable member always abuts against the outer peripheral surface of the cam structure. Different rotational positions of the cam structure relative to the bracket correspond to different adjusting positions.

4. The temperature compensation module according to claim 2, characterized in that: The adjusting member is provided with a first limiting protrusion, and the bracket is provided with a clearance hole matched with the first limiting protrusion. The first limiting protrusion can pass through the clearance hole and move in the accommodating cavity.

5. The temperature compensation module according to claim 4, characterized in that: A second limiting protrusion matched with the first limiting protrusion is provided on the inner wall of the accommodating cavity, and the first limiting protrusion moves in the accommodating cavity during the rotation of the adjusting member relative to the bracket; When the first limiting protrusion moves to abut against the first side of the second limiting protrusion, the distance between the movable part and the inner bottom wall of the bracket is the largest, and the double metal component is in a small gear position; When the first limiting protrusion moves to abut against the second side of the second limiting protrusion, the distance between the movable part and the inner bottom wall of the bracket is the smallest, and the double metal component is in a large gear position.

6. The temperature compensation module according to claim 3, characterized in that: The second end of the movable member abuts against the outer peripheral surface of the cam structure, and a convex edge is provided at the abutting position between the movable member and the cam structure.

7. The temperature compensation module according to any one of claims 1 to 6, characterized in that: First rotating protrusions are respectively arranged on two opposite sides of the first end of the movable member, and first shaft holes are respectively opened on two opposite side walls of the bracket, and the first rotating protrusions are rotatably connected to the first shaft holes.

8. The temperature compensation module according to claim 7, characterized in that: The double metal component is rotatably connected to the middle part of the movable part, and second rotating protrusions are respectively arranged on two opposite sides of the middle part of the movable part; The double metal component is provided with two opposite ear plate structures, the ear plate structure is provided with a second shaft hole, and the second shaft hole is rotatably connected to the second rotating protrusion.

9. The temperature compensation module according to any one of claims 1 to 6 and 8, characterized in that: The dual-metal assembly includes a dual-metal body and an installation body, the dual-metal body is fixedly connected to the installation body, the installation body is rotatably connected to the movable part, and the installation body part extends toward the position of the lock to form a lever structure.

10. A motor protection circuit breaker, characterized in that: include: The temperature compensation module according to any one of claims 1 to 9; and, The temperature compensation module is arranged in the housing.

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