Supporting device of contactor and contactor
By designing the main contact support and auxiliary contact support structure in the contactor, the contact spring remains compressed after melting at high temperature, solving the problem of contact spring limit failure affecting current flow, ensuring the contactor current stable circulation.
Patent Information
- Application Number
- CN202323462629.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2023-12-18
- Publication Date
- 2024-12-13
- Estimated Expiration
- 2033-12-18
AI Technical Summary
The contact spring in the contactor loses the end surface limit due to high temperature melting, which affects the normality of current flow.
A support device including main contact support, auxiliary contact support and contact spring is designed, and the contact spring is made by providing a first positioning hole on the top of the main contact support and a first boss on the bottom of the auxiliary contact support. The compressed state remains in place after melting at high temperature to ensure current flow.
After the auxiliary contact supports high temperature melting, the contact spring can still remain compressed, ensuring that the current in the contactor flows normally and avoiding current interruption caused by limit failure.
Smart Images
Figure CN222168274U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the field of contactors, and in particular to a contactor support device and a contactor. Background Art
[0002] The main contact and auxiliary contact of the contactor are two important components in the contactor, which are mainly used to conduct current and control the circuit. The main contact support is the main contact support structure in the contactor, which is used to carry and fix the main contact, and the auxiliary contact support is usually used to carry and fix the auxiliary contact. Due to the overall structural design of the contactor, the main contact support and auxiliary contact support are used to carry the main contact and auxiliary contact, and also have the function of positioning the contact spring.
[0003] In the related art, the contact spring is arranged between the main contact support and the auxiliary contact support, and the limiter arranged on the auxiliary contact realizes the end face limit of the contact spring, so that the contact spring is in a compressed state, thereby ensuring the pressure of the contact spring on the main contact, so that the current in the contactor can flow normally. However, since the auxiliary contact in the auxiliary contact support is easily affected by the dust generated by wear, the auxiliary contact support generally uses wear-resistant thermoplastic materials. When the contactor is working, the main contact carries the current and the temperature may be as high as 180°C or above. The contact spring is a metal part with good thermal conductivity. The high heat of the contact spring that directly contacts the main contact will melt the auxiliary contact support made of thermoplastic material, thereby causing the contact spring to lose the end face limit, affecting the compression state of the contact spring, and further affecting the normal flow of current in the contactor. Utility Model Content
[0004] The present application provides a contactor support device and a contactor to solve the problem that the high heat of a contact spring may melt an auxiliary contact support, thereby causing the contact spring to lose end face limit, affecting the compression state of the contact spring, and further affecting the normal flow of current in the contactor. The invention realizes that after the auxiliary contact support melts at high temperature, the contact spring can still maintain a compressed state, so that the current in the contactor can flow normally.
[0005] In a first aspect, the present application provides a contactor support device, comprising: a main contact support, an auxiliary contact support and a contact spring; a main contact is arranged at the bottom of the main contact support, a first positioning hole is opened at the top of the main contact support, the first positioning hole comprises a first major axis and a first minor axis, the length of the first major axis is a first length, the length of the first minor axis is a second length, and the first length is greater than the second length; the auxiliary contact support is connected to the top of the main contact support, a first boss is arranged at the bottom of the auxiliary contact support, the first boss comprises a second major axis and a second minor axis, the second major axis is a third length, the second minor axis is a fourth length, and the third length is greater than the fourth length; the first length is greater than the third length, the second length is greater than the fourth length, the third length is greater than the second length, and the first boss enters the main contact support through the first positioning hole; one end of the contact spring abuts on the main contact, and the other end of the contact spring abuts on the first boss, so that the contact spring is in a compressed state; the outer diameter of the contact spring is a fifth length, the fifth length is less than the third length, and the fifth length is greater than the second length.
[0006] According to the first aspect, the support device of the contactor includes: a main contact support, an auxiliary contact support and a contact spring. The main contact is arranged at the bottom of the main contact support, and the auxiliary contact support is connected to the top of the main contact support. Since the first length is greater than the third length, the second length is greater than the fourth length, and the first length and the second length are the sizes of the first positioning hole, and the third length and the fourth length are the sizes of the first boss, the first boss arranged at the bottom of the auxiliary contact support can enter the main contact support through the first positioning hole opened at the top of the main contact support. Since the third length is greater than the fifth length, and the third length is the size of the first boss, and the fifth length is the outer diameter of the contact spring, one end of the contact spring abuts against the main contact, and the other end of the contact spring can abut against the first boss, so that the contact spring is in a compressed state. Since the second length is smaller than the fifth length, and the second length is the size of the first positioning hole, and the fifth length is the outer diameter of the contact spring, when the first boss at the bottom of the auxiliary contact support melts at high temperature, one end of the contact spring abuts against the main contact, and the other end of the contact spring cannot pass through the first positioning hole, and abuts against the inner wall at the top of the main contact support, so that the contact spring is still in a compressed state. It is achieved that after the auxiliary contact support melts at high temperature, the contact spring can still remain in a compressed state, so that the current in the contactor flows normally.
[0007] In a possible design, a radial positioning channel is provided on the top of the main contact support; the first end of the radial positioning channel is connected to the first positioning hole, and the inner diameter of the radial positioning channel is greater than or equal to the first length, and the other end of the contact spring is sleeved in the radial positioning channel.
[0008] According to the embodiment, a radial positioning channel connected to the first positioning hole is provided at the top of the main contact support. Since the inner diameter of the radial positioning channel is greater than or equal to the first length, the other end of the contact spring can be sleeved in the radial positioning channel. The inner wall of the radial positioning channel is used to accommodate the radial movement of the contact spring, so that the pressure of the contact spring on the main contact remains stable, so that the current in the contactor can flow normally and stably.
[0009] In a possible design, the radial positioning channel includes a first limit block and a second limit block, and the first limit block and the second limit block are both connected to the inner wall of the top of the main contact support; the first limit block is set at one end of the first long axis, and the second limit block is set at the other end of the first long axis, and the distance between the first limit block and the second limit block is the inner diameter of the radial positioning channel.
[0010] Through the implementation, the distance between the first limit block arranged at one end of the first long axis and the second limit block arranged at the other end of the first long axis is used as the inner diameter of the radial positioning channel, ensuring that the distance between the first limit block and the second limit block is greater than or equal to the fifth length, so that the contact spring can enter the radial positioning channel; at the same time, the radial positioning structure is arranged as the first limit block and the second limit block respectively connected to the main contact support, which makes both the casting of parts and the subsequent assembly simpler and easier to operate, thereby reducing production costs.
[0011] In a possible design, the first limit block includes a connecting surface, a limit surface and a guide surface; the connecting surface is connected to the inner wall of the top of the main contact support; the limit surface and the guide surface are arranged opposite to each other, and the limit surface and the guide surface are both connected to the connecting surface; the limit surface is used to limit the radial movement of the contact spring; the first end of the guide surface is connected to the connecting surface, the second end of the guide surface is away from the connecting surface, and the distance between the first end and the limit surface is greater than the distance between the second end and the limit surface, so that the guide surface is an inclined surface inclined in the direction of the limit surface.
[0012] The connecting surface provided by this embodiment is used to connect the first limit block and the main contact support, the limit surface connected to the connecting surface is used to limit the radial movement of the contact spring, and the guide surface arranged opposite to the connecting surface is an inclined surface inclined in the direction of the limit surface, which is used to guide the contact spring into the radial positioning channel between the first limit block and the second limit block, and provide partial pressure to the contact spring through the inclination of the inclined surface, so that the contact spring can be easily pressed into the radial positioning channel and the installation of the contact spring can be completed without the need for manual pre-pressure in advance.
[0013] In a possible design, a second boss is provided on the main contact, one end of the contact spring is sleeved on the second boss, and the second boss is used to limit radial movement of the contact spring.
[0014] According to the embodiment, a second boss is arranged on the main contact, and a contact spring is sleeved in the second boss. The second boss and the radial positioning channel together limit the contact spring radially, so that the pressure of the contact spring on the main contact is more stable, so that the current in the contactor can flow normally and stably.
[0015] In a possible design, both the first boss and the second boss are key-shaped structures, the second boss includes a third major axis and a third minor axis, and the inner diameter of the contact spring is greater than the length of the third major axis.
[0016] According to the embodiment, the first boss and the second boss are both arranged as a key-type structure so that the shapes of the first boss and the second boss are consistent; at the same time, the first boss and the first positioning hole can both realize the end face limitation of the contact spring. When the inner diameter of the contact spring is larger than the length of the third major axis of the second boss, the contact spring can be sleeved on the second boss, thereby realizing the radial positioning of the contact spring.
[0017] In a possible design, a slider is provided on the main contact support, and a slide groove is provided on the auxiliary contact support; or, a slide groove is provided on the main contact support, and a slider is provided on the auxiliary contact support; the slider is slidably connected in the slide groove.
[0018] This embodiment provides that precise positioning and stable connection between the main contact support and the auxiliary contact support are achieved by slidingly connecting a slider disposed on the main contact support in a slide groove disposed on the auxiliary contact support; or slidingly connecting a slider disposed on the auxiliary contact support in a slide groove disposed on the main contact support.
[0019] In one possible design, when the auxiliary contact support is connected to the main contact support, the top surface of the main contact support is in contact and connection with the bottom surface of the auxiliary contact; a snap-in groove is provided on the top surface of the main contact support, and a snap-in block is provided on the bottom surface of the auxiliary contact support; or, a snap-in block is provided on the top surface of the main contact support, and a snap-in groove is provided on the bottom surface of the auxiliary contact support; the snap-in block groove is interference fit in the snap-in groove.
[0020] Through the implementation provided by this embodiment, the clamping block on the bottom surface of the auxiliary contact support is interference-connected with the clamping groove on the top surface of the main contact support, or the clamping groove on the bottom surface of the auxiliary contact support is interference-connected with the clamping block on the top surface of the main contact support, so as to prevent the connection between the auxiliary contact support and the main contact support from loosening, thereby avoiding affecting the end face limit of the contact spring.
[0021] In a possible design, a limiting device is provided on the main contact support or the auxiliary contact support to limit relative sliding between the main contact support and the auxiliary contact support.
[0022] According to the embodiment, by arranging a limit device on the main contact support or the auxiliary contact support, relative sliding between the main contact support and the auxiliary contact support is limited, thereby avoiding affecting the end surface limit of the contact spring.
[0023] In a second aspect, the present application provides a contactor, comprising: a support device and an auxiliary contact of the contactor described in any one of the above embodiments; the auxiliary contact is arranged in the auxiliary contact support.
[0024] The beneficial effects provided in the above-mentioned second aspect can be referred to the beneficial effects brought about by the above-mentioned first aspect and various possible implementation methods of the first aspect, and will not be repeated here. BRIEF DESCRIPTION OF THE DRAWINGS
[0025] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.
[0026] Figure 1 A schematic diagram of a structure of a supporting device of a contactor in an embodiment of the present application;
[0027] Figure 2 A schematic diagram of a structure of a main contact support in an embodiment of the present application;
[0028] Figure 3 for Figure 2Cross-sectional view along AA direction;
[0029] Figure 4 This is a schematic diagram of the structure of the first limit block and the guide surface in the embodiment of the present application;
[0030] Figure 5 This is a schematic diagram of the structure of the second limit block in the embodiment of the present application;
[0031] Figure 6 A schematic diagram of a structure of an auxiliary contact support in an embodiment of the present application;
[0032] Figure 7 for Figure 1 Isometric view and partial enlarged view (hidden contact spring);
[0033] Figure 8 for Figure 7 Exploded view in the X direction.
[0034] Description of reference numerals:
[0035] 100-support device;
[0036] 1-main contact support; 11-main contact; 12-first positioning hole; 13-radial positioning channel; 131-first limit block; 1311-limiting surface; 1312-guide surface; 132-second limit block; 14-second boss;
[0037] 2- auxiliary contact support; 21- first boss;
[0038] 3-contact spring;
[0039] 4-slider; 5-slideway; 6-clamping slot; 7-clamping block;
[0040] 8-U-type card. DETAILED DESCRIPTION
[0041] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.
[0042] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by technicians in the technical field to which this application belongs; the terms used in the specification of the application are only for the purpose of describing specific embodiments and are not intended to limit this application.
[0043] The terms "comprising" and "having" and any variations thereof in the specification, claims and drawings of this application are intended to cover but not exclude other contents. The word "a" or "an" does not exclude the presence of a plurality.
[0044] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase "embodiments" in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.
[0045] The term "and / or" in this article is only a description of the association relationship of the associated objects, indicating that there can be three relationships. For example, A and / or B can mean: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this article generally indicates that the associated objects before and after are in an "or" relationship.
[0046] The directional words appearing in the following description are all directions shown in the drawings, and do not limit the specific structure of the present application. For example, in the description of the present application, the directions or positional relationships indicated by the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. are based on the directions or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as limiting the present application.
[0047] In addition, the expressions of the indicated directions, such as the X direction, the Y direction, and the Z direction, used to illustrate the operation and construction of the components of the present embodiment are not absolute but relative, and although these indications are appropriate when the components of the battery pack are in the positions shown in the figures, when these positions change, these directions should be interpreted differently to correspond to the changes.
[0048] In addition, the terms "first", "second", etc. in the specification and claims of this application or the above-mentioned drawings are used to distinguish different objects rather than to describe a specific order, and may explicitly or implicitly include one or more of the features.
[0049] In the description of the present application, unless otherwise specified, "plurality" means more than two (including two), and similarly, "multiple groups" means more than two groups (including two).
[0050] In the description of the present application, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense. For example, the "connection" or "connection" of a mechanical structure may refer to a physical connection. For example, the physical connection may be a fixed connection, such as a fixed connection through a fixing member, such as a fixed connection through a screw, bolt or other fixing member; the physical connection may also be a detachable connection, such as a mutual snap connection or snap connection; the physical connection may also be an integral connection, such as welding, bonding or integral molding to form a connection for connection. The "connection" or "connection" of a circuit structure may refer to an electrical connection or a signal connection in addition to a physical connection. For example, it may be a direct connection, that is, a physical connection, or it may be an indirect connection through at least one intermediate element, as long as the circuit is connected, or it may be the internal connection of two elements; the signal connection may refer to a signal connection through a media medium, such as a radio wave, in addition to a signal connection through a circuit. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.
[0051] like Figure 1-Figure 3 As shown, the first aspect of an embodiment of the present application provides a contactor support device 100, comprising: a main contact support 1, an auxiliary contact support 2 and a contact spring 3; a main contact 11 is provided at the bottom of the main contact support 1, and a first positioning hole 12 is opened at the top of the main contact support 1, and the first positioning hole 12 includes a first major axis and a first minor axis, the length of the first major axis is a first length, the length of the first minor axis is a second length, and the first length is greater than the second length.
[0052] Specifically, the first positioning hole 12 may be a rectangular hole, a key-shaped hole or an elliptical hole, and the contact spring is a main contact spring pressed against the main contact.
[0053] Furthermore, if Figure 4 As shown, the auxiliary contact support 2 is connected to the top of the main contact support 1, and a first boss 21 is provided at the bottom of the auxiliary contact support 2. The first boss 21 includes a second major axis and a second minor axis. The second major axis is a third length, the second minor axis is a fourth length, and the third length is greater than the fourth length; the first length is greater than the third length, the second length is greater than the fourth length, and the third length is greater than the second length. The first boss 21 enters the main contact support 1 through the first positioning hole 12.
[0054] Specifically, when the first positioning hole 12 is a rectangular hole, a key-shaped hole or an elliptical hole, the first boss 21 is correspondingly a rectangular boss, a key-shaped boss or an elliptical boss, and complements the first positioning hole 12. The length of the first major axis is slightly greater than the second major axis, and the length of the first minor axis is slightly greater than the second minor axis, so that when the first boss 21 having a shape similar to that of the first positioning hole 12 passes through the first positioning hole 12 and enters the main contact support 1, it just fills the gap of the first positioning hole 12.
[0055] Furthermore, if Figure 1 and Figure 4 As shown, one end of the contact spring 3 abuts against the main contact 11, and the other end of the contact spring 3 abuts against the first boss 21, so that the contact spring 3 is in a compressed state; the outer diameter of the contact spring 3 is the fifth length, the fifth length is less than the third length, and the fifth length is greater than the second length.
[0056] Specifically, the contact spring 3 is generally arranged in the main contact support 1, so the first boss 21 needs to pass through the first positioning hole 12 to enter the main contact support 1. The second major axis of the first boss 21 is the third length, and the outer diameter of the contact spring 3 is smaller than the length of the second major axis, that is, the contact spring 3 will abut between the main contact 11 and the first boss 21, so that the first boss 21 can limit the end surface of the contact spring 3.
[0057] The contactor support device 100 provided by the embodiment of the first aspect of the present application includes: a main contact support 1, an auxiliary contact support 2 and a contact spring 3. The main contact 11 is arranged at the bottom of the main contact support 1, and the auxiliary contact support 2 is connected to the top of the main contact support 1. Since the first length is greater than the third length, the second length is greater than the fourth length, and the first length and the second length are the sizes of the first positioning hole 12, and the third length and the fourth length are the sizes of the first boss 21, the first boss 21 arranged at the bottom of the auxiliary contact support 2 can enter the main contact support 1 through the first positioning hole 12 opened at the top of the main contact support 1.
[0058] Since the third length is greater than the fifth length, and the third length is the size of the first boss 21, and the fifth length is the outer diameter of the contact spring 3, one end of the contact spring 3 abuts against the main contact 11, and the other end of the contact spring 3 can abut against the first boss 21, so that the contact spring 3 is in a compressed state.
[0059] Since the second length is smaller than the fifth length, and the second length is the size of the first positioning hole 12, and the fifth length is the outer diameter of the contact spring 3, when the first boss 21 at the bottom of the auxiliary contact support 2 melts at high temperature, one end of the contact spring 3 abuts against the main contact 11, and the other end of the contact spring 3 cannot pass through the first positioning hole 12, and abuts against the inner wall at the top of the main contact support 1, so that the contact spring 3 is still in a compressed state. It is achieved that after the auxiliary contact support 2 melts at high temperature, the contact spring 3 can still maintain a compressed state, so that the current in the contactor flows normally.
[0060] In some embodiments, a radial positioning channel (not shown in the figure) is provided on the top of the main contact support 1; the first end of the radial positioning channel is connected to the first positioning hole 12, and the inner diameter of the radial positioning channel is greater than or equal to the first length, and the other end of the contact spring 3 is sleeved in the radial positioning channel.
[0061] Specifically, the inner diameter of the radial positioning channel is greater than or equal to the first length, and the first length is greater than the fifth length. Therefore, the inner diameter of the radial positioning channel is greater than the outer diameter of the contact spring 3. At this time, the first boss 21 is also located in the radial positioning channel, and one end of the contact spring 3 abuts against the first boss 21 in the radial positioning channel.
[0062] According to the embodiment, a radial positioning channel connected to the first positioning hole 12 is arranged on the top of the main contact support 1. Since the inner diameter of the radial positioning channel is greater than or equal to the first length, the other end of the contact spring 3 can be sleeved in the radial positioning channel. The inner wall of the radial positioning channel is used to accommodate the radial movement of the contact spring 3, so that the pressure of the contact spring 3 on the main contact 11 remains stable, so that the current in the contactor can flow normally and stably.
[0063] In some embodiments, Figure 3 As shown, the radial positioning channel includes a first limit block 131 and a second limit block 132, and the first limit block 131 and the second limit block 132 are both connected to the inner wall at the top of the main contact support 1; the first limit block 131 is arranged at one end of the first long axis, and the second limit block 132 is arranged at the other end of the first long axis, and the distance between the first limit block 131 and the second limit block 132 is the inner diameter of the radial positioning channel.
[0064] Specifically, the first limit block 131 and the second limit block 132 are respectively arranged at the two ends of the first long axis, which can ensure that the first limit block 131 and the second limit block 132 will not affect the first boss 21 from entering the main contact support 1 from the first positioning hole 12, and can also make the distance between the first limit block 131 and the second limit block 132 greater than or equal to the length of the first long axis, and the length of the first long axis is greater than the outer diameter of the contact spring 3, so as to ensure that the contact spring 3 can smoothly enter the radial positioning channel formed by the first limit block 131 and the second limit block 132.
[0065] On the other hand, setting the radial positioning channel as an integrated structure will cause unnecessary waste of production materials and productivity from the perspective of part casting and subsequent assembly. Setting the radial positioning structure as the first limit block 131 and the second limit block 132 arranged relatively to each other will make both part casting and subsequent assembly simpler and easier to operate.
[0066] The embodiment provides that the distance between the first limit block 131 arranged at one end of the first long axis and the second limit block 132 arranged at the other end of the first long axis is used as the inner diameter of the radial positioning channel, ensuring that the distance between the first limit block 131 and the second limit block 132 is greater than or equal to the fifth length, so that the contact spring 3 can enter the radial positioning channel; at the same time, the radial positioning structure is set to be the first limit block 131 and the second limit block 132 respectively connected to the main contact support 1, which makes both the casting of parts and the subsequent assembly simpler and easier to operate, thereby reducing the production cost.
[0067] In some embodiments, Figure 5 As shown, the first limit block 131 includes a connecting surface (not shown in the figure), a limit surface 1311 and a guide surface 1312; the connecting surface is connected to the inner wall at the top of the main contact support 1; the limit surface 1311 and the guide surface 1312 are arranged opposite to each other, and the limit surface 1311 and the guide surface 1312 are both connected to the connecting surface; the limit surface 1311 is used to limit the radial movement of the contact spring 3; the first end of the guide surface 1312 is connected to the connecting surface, and the second end of the guide surface 1312 is away from the connecting surface, and the distance between the first end and the limit surface 1311 is greater than the distance between the second end and the limit surface 1311, so that the guide surface 1312 is an inclined surface inclined in the direction of the limit surface 1311.
[0068] Specifically, the first limit block 131 is a limit protrusion connected to the inner wall of the top of the main contact support 1, and requires a connection surface to play a connection role, and a limit surface 1311 connected to the connection surface to play a limit role. Since the limit protrusion has a thickness, the first limit block 131 also includes two oppositely arranged side surfaces. In addition to the connection surface, the limit surface 1311 and the two side surfaces, the first limit block 131 should also include a surface opposite to the limit surface 1311 arranged along the thickness direction, and a surface opposite to the connection surface arranged along the limit length direction.
[0069] In the installation process of the contact spring 3, it is necessary to pre-press the contact spring 3 until the length of the contact spring 3 can avoid the limiting height of the first limiting block 131, and then push the contact spring 3 into the radial positioning channel between the first limiting block 131 and the second limiting block 132. In order to optimize the pushing method of the contact spring 3, the surface opposite to the limiting surface 1311 arranged along the thickness direction can be set as a guide surface 1312 inclined in the direction of the limiting surface 1311, and the thickness between the guide surface 1312 and the limiting surface 1311 gradually decreases along the direction in which the contact spring 3 is pushed in. When the contact spring 3 can be pressed into the radial positioning channel between the first limiting block 131 and the second limiting block 132 along the guide surface 1312, the inclination of the guide surface 1312 provides partial pre-pressure for the contact spring 3, so that the contact spring 3 can be easily pressed into the radial positioning channel.
[0070] The connecting surface provided by this embodiment is used to connect the first limit block 131 and the main contact support 1, the limit surface 1311 connected to the connecting surface is used to limit the radial movement of the contact spring 3, and the guide surface 1312 arranged opposite to the connecting surface is an inclined surface inclined in the direction of the limit surface 1311, which is used to guide the contact spring 3 into the radial positioning channel between the first limit block 131 and the second limit block 132, and provide partial pressure to the contact spring 3 through the inclination of the inclined surface, so that the contact spring 3 can be easily pressed into the radial positioning channel and the installation of the contact spring 3 can be completed without artificially applying pre-pressure in advance.
[0071] In some embodiments, Figure 6 As shown, the second limit block 132 is a boss extending from the main contact support 1 toward the main contact 11, the boss and the main contact support are an integral structure, and the contact surface of the boss and the contact spring 13 is adapted to the outer diameter of the contact spring 13. The second limit block 132 uses a boss extending from the main contact support 1, which has a simple structure and reduces production costs.
[0072] In some embodiments, Figure 3 , Figure 7 and Figure 8As shown, a second boss 14 is provided on the main contact 11 , and one end of the contact spring 3 is sleeved on the second boss 14 . The second boss 14 is used to limit the radial movement of the contact spring 3 .
[0073] Specifically, one end of the contact spring 3 abuts against the main contact 11, and the other end of the contact spring 3 abuts against the first boss 21. The main contact 11 and the first boss 21 realize the end face limit of the contact spring 3. In order to prevent the contact spring 3 from moving radially and causing an unstable compression state, the radial positioning channel performs a first radial limit on the other end of the contact spring 3. In order to achieve a better radial limit effect and to make the compression state of the contact spring 3 more stable, a second radial limit can be performed on the main contact 11 abutted by one end of the contact spring 3. For example, a second boss 14 is provided on the main contact 11 so that the contact spring 3 is sleeved on the second boss 14 to strengthen the radial limit of the contact spring 3.
[0074] According to the embodiment, a second boss 14 is provided on the main contact 11, and the contact spring 3 is sleeved in the second boss 14. The second boss 14 and the radial positioning channel together limit the contact spring 3 radially, so that the pressure of the contact spring 3 on the main contact 11 is more stable, so that the current in the contactor can flow normally and stably.
[0075] In some embodiments, both the first boss 21 and the second boss 14 are key-shaped structures, the second boss 14 includes a third major axis and a third minor axis, and the inner diameter of the contact spring 3 is greater than the length of the third major axis.
[0076] Specifically, the key-type structure includes a major axis and a minor axis. When the first boss 21 is a key-type structure, the first positioning hole 12 is a key-type hole accordingly. The key-type hole can achieve end surface positioning of the contact spring 3 in the minor axis direction, and the first boss 21 can achieve end surface positioning of the contact spring 3 in the major axis direction. Considering the feasibility of parts processing and the convenience of assembly, the second boss 14 is set to a key-type structure similar to the first boss 21, so that the second boss 14 can achieve radial positioning of the contact spring 3 in the major axis direction.
[0077] According to the embodiment, the first boss 21 and the second boss 14 are both configured as a key-type structure, so that the shapes of the first boss 21 and the second boss 14 are consistent; at the same time, the first boss 21 and the first positioning hole 12 can both achieve end face limiting of the contact spring 3. When the inner diameter of the contact spring 3 is greater than the length of the third major axis of the second boss 14, the contact spring 3 can be sleeved on the second boss 14, thereby achieving radial positioning of the contact spring 3.
[0078] In some embodiments, the key-type structure includes a flat key and a semicircular key. The first boss 21 and the second boss 14 are both semicircular keys. The long axis of the semicircular key has arc sides on both sides, which can better fit the contact spring 3 with a circular cross-section to achieve precise radial limiting of the contact spring 3.
[0079] In some embodiments, Figure 7 As shown, a slider 4 is provided on the main contact support 1, and a slide groove 5 is provided on the auxiliary contact support 2; or, a slide groove 5 is provided on the main contact support 1, and a slider 4 is provided on the auxiliary contact support 2; the slider 4 is slidably connected in the slide groove 5.
[0080] The connection between the slider 4 and the slot 5 is a commonly used mechanical connection method, which can achieve accurate positioning and stable connection between the two components.
[0081] Specifically, the main contact support 1 is a first shell with an opening at the top and a receiving cavity, wherein the first shell includes two side walls; the auxiliary contact support 2 is a second shell with an opening at the bottom and a receiving cavity, wherein the second shell also includes two side walls. The slide groove 5 is arranged on the outer side of the two side walls of the first shell, and the slider is arranged on the inner side of the two side walls of the second shell. The distance between the two side walls of the second shell is greater than that of the first shell, and the sliders 4 arranged on the two side walls of the second shell can be respectively slidably connected to the slide grooves 5 arranged on the two side walls of the first shell, thereby completing the precise positioning and stable connection between the main contact support 1 and the auxiliary contact support 2.
[0082] According to the embodiment, the slider 4 provided on the main contact support 1 is slidably connected to the slide groove 5 provided on the auxiliary contact support 2; or the slider 4 provided on the auxiliary contact support 2 is slidably connected to the slide groove 5 provided on the main contact support 1, so as to realize the precise positioning and stable connection between the main contact support 1 and the auxiliary contact support 2.
[0083] In some embodiments, Figure 4 and Figure 8 As shown, when the auxiliary contact support 2 is connected to the main contact support 1, the top surface of the main contact support 1 is in contact and connection with the bottom surface of the auxiliary contact; a snap-in groove 6 is provided on the top surface of the main contact support 1, and a snap-in block 7 is provided on the bottom surface of the auxiliary contact support 2; or, a snap-in block 7 is provided on the top surface of the main contact support 1, and a snap-in groove 6 is provided on the bottom surface of the auxiliary contact support 2; the snap-in block 7 is interference fit in the snap-in groove 6.
[0084] Interference fit refers to the process of connecting two parts, in which the size of one part is slightly larger than the size of the other part, so that the connection can be achieved by pressing or fitting. The tightness between the two parts connected by interference fit is good, preventing the connection between the two parts from loosening.
[0085] Specifically, since the contact spring 3 abuts between the first boss 21 and the main contact 11 to achieve end face limitation, the auxiliary contact support 2 and the main contact support 1 need to be interference connected in the length direction of the contact spring 3, so that the connection between the auxiliary contact support 2 and the main contact support 1 in the length direction of the contact spring 3 is tighter to avoid affecting the end face limitation of the contact spring 3.
[0086] Through the implementation provided by this embodiment, the clamping block 7 on the bottom surface of the auxiliary contact support 2 is interference-connected with the clamping groove 6 on the top surface of the main contact support 1, or the clamping groove 6 on the bottom surface of the auxiliary contact support 2 is interference-connected with the clamping block 7 on the top surface of the main contact support 1, so as to prevent the connection between the auxiliary contact support 2 and the main contact support 1 from loosening, thereby avoiding affecting the end face limit of the contact spring 3.
[0087] In some embodiments, a limiting device is provided on the main contact support 1 or the auxiliary contact support 2 to limit relative sliding between the main contact support 1 and the auxiliary contact support 2 .
[0088] Specifically, since the main contact support 1 and the auxiliary contact support 2 are connected by the slide rail of the slide groove 5, relative sliding will occur between the main contact support 1 and the auxiliary contact support 2. When relative sliding occurs between the main contact support 1 and the auxiliary contact support 2, the radial positioning channel on the main contact support 1 and the first boss 21 on the auxiliary contact support 2 will be misaligned, resulting in the first boss 21 being unable to enter the main contact support 1 through the radial positioning channel, so that the first boss 21 cannot perform end surface limit on the contact spring 3. Therefore, it is necessary to limit the relative sliding between the main contact support 1 and the auxiliary contact support 2 to avoid affecting the end surface limit of the contact spring 3.
[0089] According to this embodiment, by providing a limiting device on the main contact support 1 or the auxiliary contact support 2, relative sliding between the main contact support 1 and the auxiliary contact support 2 is limited, thereby avoiding affecting the end surface limiting of the contact spring 3.
[0090] An example, such as Figure 7 and Figure 8 As shown, a U-shaped clamp 8 is provided at the connection between the main contact support 1 and the auxiliary contact support 2, so that the main contact support 1 and the auxiliary contact support 2 cannot slide relative to each other.
[0091] A second aspect of the embodiments of the present application provides a contactor (not shown in the figure), comprising: a support device 100 of the contactor described in any of the above embodiments and an auxiliary contact (not shown in the figure); the auxiliary contact is arranged in the auxiliary contact support 2.
[0092] Specifically, the contactor may include a plurality of main contacts 11 and a plurality of auxiliary contacts. One main contact 11 corresponds to one contact spring 3. Each contact spring 3 has the same device for radial positioning and end surface positioning.
[0093] The beneficial effects provided in the above-mentioned second aspect can be referred to the beneficial effects brought about by the above-mentioned first aspect and various possible implementation methods of the first aspect, and will not be repeated here.
[0094] Those skilled in the art will appreciate that, although some embodiments herein include certain features included in other embodiments but not other features, the combination of features of different embodiments is meant to be within the scope of the present application and form different embodiments. For example, in the claims, any one of the claimed embodiments may be used in any combination.
[0095] As described above, the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present application.
Claims
1. A contactor support device, characterized in that: include: Main contact supports, auxiliary contact supports and contact springs; A main contact is arranged at the bottom of the main contact support, a first positioning hole is opened at the top of the main contact support, the first positioning hole comprises a first major axis and a first minor axis, the length of the first major axis is a first length, the length of the first minor axis is a second length, and the first length is greater than the second length; The auxiliary contact support is connected to the top of the main contact support, and a first boss is provided at the bottom of the auxiliary contact support, wherein the first boss includes a second major axis and a second minor axis, the second major axis is a third length, the second minor axis is a fourth length, and the third length is greater than the fourth length; The first length is greater than the third length, the second length is greater than the fourth length, the third length is greater than the second length, and the first boss enters the main contact support through the first positioning hole; One end of the contact spring abuts against the main contact, and the other end of the contact spring abuts against the first boss, so that the contact spring is in a compressed state; An outer diameter of the contact spring is a fifth length, the fifth length is smaller than the third length, and the fifth length is greater than the second length.
2. The support device according to claim 1, characterized in that A radial positioning channel is provided on the top of the main contact support; The first end of the radial positioning channel is communicated with the first positioning hole, and the inner diameter of the radial positioning channel is greater than or equal to the first length. The other end of the contact spring is sleeved in the radial positioning channel.
3. The support device according to claim 2, characterized in that The radial positioning channel comprises a first limit block and a second limit block, wherein the first limit block and the second limit block are both connected to the inner wall of the top of the main contact support; The first limit block is arranged at one end of the first long axis, and the second limit block is arranged at the other end of the first long axis. The distance between the first limit block and the second limit block is the inner diameter of the radial positioning channel.
4. The support device according to claim 3, characterized in that The first limiting block comprises a connecting surface, a limiting surface and a guiding surface; The connection surface is connected to the inner wall of the top of the main contact support; The limiting surface and the guiding surface are arranged opposite to each other, and both the limiting surface and the guiding surface are connected to the connecting surface; The limiting surface is used to limit the radial movement of the contact spring; The first end of the guide surface is connected to the connecting surface, the second end of the guide surface is away from the connecting surface, and the distance between the first end and the limiting surface is greater than the distance between the second end and the limiting surface, so that the guide surface is an inclined surface inclined toward the limiting surface.
5. The supporting device according to any one of claims 1 to 4, characterized in that: The main contact is provided with a second boss, one end of the contact spring is sleeved on the second boss, and the second boss is used to limit the radial movement of the contact spring.
6. The support device according to claim 5, characterized in that The first boss and the second boss are both key-shaped structures, the second boss includes a third long axis and a third short axis, and the inner diameter of the contact spring is greater than the length of the third long axis.
7. The support device according to claim 6, characterized in that The main contact support is provided with a slider, and the auxiliary contact support is provided with a slide groove; or, The main contact support is provided with a slide groove, and the auxiliary contact support is provided with a slide block; The sliding block is slidably connected in the sliding groove.
8. The support device according to claim 7, characterized in that When the auxiliary contact support is connected to the main contact support, the top surface of the main contact support is in contact and connection with the bottom surface of the auxiliary contact; A clamping groove is provided on the top surface of the main contact support, and a clamping block is provided on the bottom surface of the auxiliary contact support; or, A clamping block is provided on the top surface of the main contact support, and a clamping groove is provided on the bottom surface of the auxiliary contact support; The clamping block groove is interference-fitted in the clamping groove.
9. The support device according to claim 8, characterized in that A limiting device is provided on the main contact support or the auxiliary contact support to limit relative sliding between the main contact support and the auxiliary contact support.
10. A contactor, characterized in that: A supporting device and an auxiliary contact of a contactor comprising any one of claims 1 to 9; The auxiliary contact is arranged in the auxiliary contact support.