Change-over switch
By switching the series and parallel connections of the circuits under different charging scenarios using a switching switch, the problems of high system cost and complex architecture for charging across voltage platforms are solved, and an efficient and low-cost charging solution is achieved.
Patent Information
- Application Number
- CN202511707621.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-11-19
- Publication Date
- 2026-01-27
AI Technical Summary
Existing technologies suffer from high system costs, limited charging rates, and complex system architectures when charging across voltage platforms, especially when using 800V systems on 400V charging facilities.
A switching switch is provided that switches the series or parallel connection of circuits by means of a sliding element under the action of external force, so as to realize the switching of different voltage platforms and avoid the use of boost converters or traction inverters.
It simplifies the charging system architecture, improves charging efficiency, and reduces costs.
Smart Images
Figure CN121416352A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of switching electrical technology, and more specifically, to a switching switch. Background Technology
[0002] With the rapid development of the electric vehicle industry, charging efficiency and charging infrastructure compatibility have become key technological bottlenecks restricting its market penetration. Currently, based on innovative battery voltage dynamic reconfiguration technology, a high-efficiency charging solution across voltage platforms has been achieved. Taking the application of 800V high-voltage electric vehicles on 400V charging infrastructure as an example, compared to the traditional 400V system, the 800V system can halve the operating current while maintaining the same performance indicators, thereby effectively reducing power loss and improving the charging rate.
[0003] In existing technologies, boost converters are typically used to achieve efficient charging across different voltage platforms, such as boosting 400V to 800V for compatible charging. However, this approach incurs high system costs, and the charging rate is limited by the power capacity of the boost converter. While using a boost converter based on a traction inverter reduces costs to some extent, it requires additional hardware modules, leading to a more complex system architecture and impacting charging efficiency. Summary of the Invention
[0004] The purpose of this invention is to provide a switching switch that can switch to different voltage platforms according to different charging scenarios, thereby simplifying the charging system architecture, improving charging efficiency, and reducing costs.
[0005] The embodiments of the present invention are implemented as follows: An embodiment of the present invention provides a switching switch for switching between series or parallel circuits, the switching switch comprising: Switch housing; A stationary contact structure, comprising connecting conductors all disposed on the switch housing, two first stationary contacts, and two second stationary contacts, wherein the two first stationary contacts and the two second stationary contacts are configured in the circuit; and A moving contact structure includes a slider, a first moving contact group, and a second moving contact group. The slider is slidably disposed on the switch housing. The first moving contact group and the second moving contact group are spaced apart and are both disposed on the slider. Wherein, the sliding member is used to slide relative to the switch housing under the action of external force, so that the first moving contact group connects and conducts one of the first stationary contacts and one of the second stationary contacts, and the second moving contact group connects and conducts another first stationary contact and another second stationary contact, so that the circuit is connected in parallel to form a first voltage platform; or, so that the first moving contact group connects and conducts one of the second stationary contacts and the connecting conductor, and the second moving contact group connects and conducts another second stationary contact and the connecting conductor, so that the circuit is connected in series to form a second voltage platform.
[0006] In an optional embodiment, two first stationary contacts are spaced apart along a first direction, two second stationary contacts are spaced apart along the first direction, and a first moving contact group and a second moving contact group are spaced apart along the first direction; two first stationary contacts and two second stationary contacts are spaced apart along a second direction, and the connecting conductor and the first stationary contact are spaced apart along the first direction. Wherein, the first direction forms an angle with the second direction, and the first direction is the sliding direction of the slider.
[0007] In an optional embodiment, the connecting conductor includes a first bent portion, a horizontal portion, and a second bent portion connected in sequence. The horizontal portion extends along the first direction, and both the first bent portion and the second bent portion extend along the second direction. The first moving contact group is used to connect and conduct the first bent portion and one of the second stationary contacts, and the second moving contact is used to connect and conduct the second bent portion and the other second stationary contact.
[0008] In an optional embodiment, the two first stationary contacts each have a first contact portion and a second contact portion, and the first contact portion, the first bending portion, the second contact portion and the second bending portion are arranged at intervals along the first direction. Wherein, one end of the first moving contact group is located between the first contact portion and the first bending portion, and one end of the second moving contact group is located between the second contact portion and the second bending portion.
[0009] In an optional embodiment, one of the second stationary contacts has a third contact portion and a fourth contact portion, and the other second stationary contact has a fifth contact portion and a sixth contact portion, wherein the third contact portion, the fourth contact portion, the fifth contact portion and the sixth contact portion are arranged at intervals along the first direction. The other end of the first moving contact group is located between the third contact portion and the fourth contact portion; the other end of the second moving contact group is located between the fifth contact portion and the sixth contact portion.
[0010] In an optional embodiment, the first contact portion is disposed opposite to the third contact portion, and the second contact portion is disposed opposite to the fifth contact portion.
[0011] In an optional embodiment, the first bent portion is disposed opposite to the fourth contact portion, and the second bent portion is disposed opposite to the sixth contact portion.
[0012] In an optional embodiment, the two first stationary contacts further include a first wiring portion and a second wiring portion, the first wiring portion and the second wiring portion being respectively disposed corresponding to the first contact portion and the second contact portion; and / or, The two second stationary contacts also have a third wiring portion and a fourth wiring portion respectively. The third wiring portion is correspondingly arranged with the third contact portion and the fourth contact portion, and the fourth wiring portion is correspondingly arranged with the fifth contact portion and the sixth contact portion.
[0013] In an optional embodiment, the first moving contact group includes a first mounting base, a first moving contact, and a second moving contact. The first mounting base is disposed on the slider, and both the first moving contact and the second moving contact are disposed on the first mounting base. The second moving contact group includes a second mounting base, a third moving contact, and a fourth moving contact. The second mounting base is disposed on the slider, and both the third moving contact and the fourth moving contact are disposed on the second mounting base. The first moving contact, the second moving contact, the third moving contact, and the fourth moving contact are arranged sequentially at intervals. The first moving contact is used to connect and conduct one of the first stationary contacts and one of the second stationary contacts, and the second moving contact is used to connect and conduct the connecting conductor and one of the second stationary contacts. The third moving contact is used to connect and conduct the connecting conductor and another second stationary contact, and the fourth moving contact is used to connect and conduct another first stationary contact and another second stationary contact.
[0014] In an optional embodiment, the first moving contact group further includes a first elastic contact finger and a second elastic contact finger. The first elastic contact finger is located between the first moving contact and the first mounting base, and simultaneously abuts against both the first moving contact and the first mounting base; the second elastic contact finger is located between the second moving contact and the first mounting base, and simultaneously abuts against both the second moving contact and the first mounting base; and / or, The second moving contact group further includes a third elastic contact finger and a fourth elastic contact finger. The third elastic contact finger is located between the third moving contact and the second mounting base, and simultaneously abuts against both the third moving contact and the second mounting base. The fourth elastic contact finger is located between the fourth moving contact and the second mounting base, and simultaneously abuts against both the fourth moving contact and the second mounting base.
[0015] In an optional embodiment, the first mounting base includes a first base plate, a first partition plate, and a first top plate. The two ends of the first partition plate are respectively connected to the first base plate and the first top plate. The first movable contact and the second movable contact are respectively disposed on opposite sides of the first partition plate, and both the first movable contact and the second movable contact are located between the first base plate and the first top plate; and / or, The second mounting base includes a second base plate, a second partition plate, and a second top plate. The two ends of the second partition plate are respectively connected to the second base plate and the second top plate. The third moving contact and the fourth moving contact are respectively disposed on opposite sides of the second partition plate, and both the third moving contact and the fourth moving contact are located between the second base plate and the second top plate.
[0016] In an optional embodiment, the first mounting base further includes a first connecting post and a second connecting post, the first connecting post and the second connecting post being respectively disposed on opposite sides of the first partition, the first connecting post passing through the first moving contact, and the second connecting post passing through the second moving contact; and / or, The second mounting base also includes a third connecting post and a fourth connecting post, the third connecting post and the fourth connecting post being respectively disposed on opposite sides of the second partition, the third connecting post passing through the third moving contact, and the fourth connecting post passing through the fourth moving contact.
[0017] In an optional embodiment, the slider is provided with a first mounting groove and a second mounting groove, the first mounting groove and the second mounting groove are spaced apart, the first moving contact group is disposed in the first mounting groove, and the second moving contact group is disposed in the second mounting groove.
[0018] In an optional embodiment, the switch further includes a driving device disposed in the switch housing and connected to the slider, for driving the slider to slide relative to the switch housing.
[0019] The beneficial effects of the embodiments of the present invention include: The switching switch provided in this embodiment, in a low-voltage charging scenario, uses an external force to drive the slider to slide a certain distance relative to the switch housing. This causes the first moving contact group to simultaneously contact one of the first stationary contacts and one of the second stationary contacts, and the second moving contact group to simultaneously contact the other first stationary contact and the other second stationary contact. This connects the two circuits, achieving parallel circuitry and forming a first voltage platform, which can be understood as a charging platform with a relatively low voltage. In a high-voltage charging scenario, similarly, an external force drives the slider to slide a certain distance in the opposite direction relative to the switch housing. This causes the first moving contact group to simultaneously contact one of the second stationary contacts and the connecting conductor, and the second moving contact group to simultaneously contact the other second stationary contact and the connecting conductor. This connects the two second stationary contacts, achieving series circuitry and forming a second voltage platform, which can be understood as a charging platform with a relatively high voltage, thereby increasing the vehicle's charging speed.
[0020] Therefore, this switching switch can change the series and parallel connection of the circuit according to different charging scenarios, and switch between different voltage platforms for charging without the need for a boost converter or traction inverter, thereby simplifying the charging system architecture, improving charging efficiency, and reducing costs. Attached Figure Description
[0021] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present invention and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.
[0022] Figure 1 This is a schematic diagram of the structure of the switching switch provided in an embodiment of the present invention; Figure 2 A schematic diagram of the switch in the first switching state provided in an embodiment of the present invention; Figure 3 A schematic diagram of the switch in a second switching state provided in an embodiment of the present invention; Figure 4 A schematic diagram of the circuit connection for switching to achieve parallel circuit connection using a switching switch provided in an embodiment of the present invention; Figure 5 A circuit connection diagram for switching circuits using a switching switch provided in an embodiment of the present invention; Figure 6 A schematic diagram of the stationary contact structure provided in an embodiment of the present invention; Figure 7 An exploded view of the moving contact structure provided in an embodiment of the present invention; Figure 8 Exploded views of the first moving contact group and the second moving contact group provided in the embodiments of the present invention; Figure 9 This is a schematic diagram of the structure of the driving device provided in an embodiment of the present invention; Figure 10 This is a schematic diagram of the switch housing provided in an embodiment of the present invention.
[0023] Icons: 100-Toggle switch; 10-Switch housing; 11-First slot; 12-Second slot; 13-Third slot; 14-First slide groove; 15-Second slide groove; 16-Third slide groove; 20-Stationary contact structure; 21-Connecting conductor; 211-First bend; 212-Horizontal part; 213-Second bend; 22-First stationary contact; 221-First contact part; 222-Second contact part; 223-First wiring part; 224-Second wiring part; 23-Second stationary contact; 231-Third contact part; 232-Fourth contact part; 233-Fifth contact part; 234-Sixth contact part; 235-Third wiring part; 236-Fourth wiring part; 30-Moving contact structure; 31-Sliding element; 311-First mounting groove; 312-Second mounting groove; 313-First sliding element Frame; 314-Second sliding frame; 32-First moving contact group; 321-First mounting base; 3211-First base plate; 3212-First partition plate; 3213-First top plate; 3214-First connecting column; 3215-Second connecting column; 322-First moving contact; 323-Second moving contact; 324-First elastic contact finger; 325-Second elastic contact finger; 33-Second moving contact group; 331-Second mounting base; 3311-Second base plate; 3312-Second partition plate; 3313-Second top plate; 3314-Third connecting column; 3315-Fourth connecting column; 332-Third moving contact; 333-Fourth moving contact; 334-Third elastic contact finger; 335-Fourth elastic contact finger; 40-Drive device; 41-Motor; 42-Cam mechanism; 43-Push plate; 431-Cam groove. Detailed Implementation
[0024] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. The components of the embodiments of the present invention described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.
[0025] Therefore, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the invention without inventive effort are within the scope of protection of the invention.
[0026] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.
[0027] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this invention is in use. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this invention. In addition, the terms "first," "second," "third," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.
[0028] Furthermore, terms such as "horizontal" and "vertical" do not imply that components must be absolutely horizontal or suspended, but rather that they can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal than "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.
[0029] In the description of this invention, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.
[0030] As described in the background section, existing technologies typically employ boost converters to achieve efficient charging across different voltage platforms, such as boosting 400V to 800V for compatible charging. However, this approach incurs high system costs, and the charging rate is limited by the power capacity of the boost converter. Another approach uses a boost converter based on a traction inverter. While this reduces costs to some extent, it requires additional hardware modules, leading to a complex system architecture and impacting charging efficiency.
[0031] Based on this, please refer to Figures 1-10 The present invention provides a switching switch 100, which can effectively improve the technical problems mentioned above. It is used to switch the series or parallel connection of the circuit and can switch to different voltage platforms according to different charging scenarios, thereby simplifying the charging system architecture, improving charging efficiency and reducing costs.
[0032] It should be noted that the first direction mentioned below refers to... Figures 1-10 The X direction is shown in the figure, and the second direction is... Figures 1-10 The Y direction shown in the figure, the third direction is Figures 1-10 The Z direction is shown in the diagram. The following will provide a detailed description of the switch 100.
[0033] Please refer to Figure 1 , Figure 1 This is a schematic diagram of the structure of the switching switch 100 provided in this embodiment, combined with... Figure 1 The changeover switch 100 includes a switch housing 10, a stationary contact structure 20, and a moving contact structure 30. The stationary contact structure 20 includes connecting conductors 21, two first stationary contacts 22, and two second stationary contacts 23, all disposed within the switch housing 10. The two first stationary contacts 22 and two second stationary contacts 23 are configured in a circuit. The moving contact structure 30 includes a sliding member 31, a first moving contact group 32, and a second moving contact group 33. The sliding member 31 is slidably disposed within the switch housing 10. The first moving contact group 32 and the second moving contact group 33 are spaced apart and both are disposed within the sliding member 31.
[0034] The slider 31 is used to slide relative to the switch housing 10 under the action of external force, so that the first moving contact group 32 connects and conducts one of the first stationary contacts 22 and one of the second stationary contacts 23, and the second moving contact group 33 connects and conducts another first stationary contact 22 and another second stationary contact 23, so that the circuit is connected in parallel to form a first voltage platform; or, so that the first moving contact group 32 connects and conducts one of the second stationary contacts 23 and the connecting conductor 21, and the second moving contact group 33 connects and conducts another second stationary contact 23 and the connecting conductor 21, so that the circuit is connected in series to form a second voltage platform.
[0035] For details, please refer to Figures 2-5 , Figure 2 This is a schematic diagram of the switch 100 provided in this embodiment in the first switching state. Figure 3 This is a schematic diagram of the switch 100 provided in this embodiment in the second switching state. Figure 4 This embodiment provides a circuit connection diagram for the switching switch 100 to achieve parallel circuit connection. Figure 5This is a circuit connection diagram illustrating the switching of the circuit via the switch 100 provided in this embodiment to achieve series connection of the circuits. It can be understood that the first switching state of the switch 100 is the switching state that achieves parallel connection of the circuits, and the second switching state is the switching state that achieves series connection of the circuits.
[0036] It should be noted that this embodiment specifically uses a 400V charging platform (first voltage platform) and an 800V charging platform (second voltage platform) as examples to explain the switching working principle of the switch 100. It is easy to understand that the value of the first voltage platform is less than the value of the second voltage platform; of course, in other embodiments, the first and second voltage platforms can also be charging platforms with other voltage values.
[0037] Please combine them together Figures 1-5 In low-voltage charging scenarios, the sliding member 31 is driven by external force to slide a certain distance relative to the switch housing 10. This allows the first moving contact group 32 to simultaneously contact one of the first stationary contacts 22 and one of the second stationary contacts 23, and the second moving contact group 33 to simultaneously contact another first stationary contact 22 and another second stationary contact 23. This connects the two circuits, achieving parallel circuitry and forming a first voltage platform. This first voltage platform can be understood as a charging platform with a relatively low voltage. For example, in... Figure 2 In this configuration, the first moving contact group 32 simultaneously contacts the first stationary contact 22 and the second stationary contact 23 located on the left, while the second moving contact group 33 simultaneously contacts the first stationary contact 22 and the second stationary contact 23 located on the right. That is... Figure 2 The two dashed lines in the diagram can be connected and conduct, forming a parallel loop. For example, in... Figure 4 In this circuit, the switching switch 100 can connect contacts A1 and A2 in the circuit, and simultaneously connect contacts B1 and B2, thereby achieving parallel connection of two 400V battery packs, that is, the first voltage platform is a 400V voltage platform.
[0038] In high-voltage charging scenarios, the sliding member 31 is also driven by external force to slide a certain distance in the opposite direction relative to the switch housing 10. This allows the first moving contact group 32 to simultaneously contact one of the second stationary contacts 23 and the connecting conductor 21, and the second moving contact group 33 to simultaneously contact the other second stationary contact 23 and the connecting conductor 21. This makes the circuit connection between the two second stationary contacts 23 conductive, realizing the series connection of the circuit to form a second voltage platform. This second voltage platform can be understood as a charging platform with a relatively high voltage, thereby improving the charging speed of the vehicle. For example, in Figure 3 In this process, by sequentially connecting the first moving contact group 32, the connecting conductor 21, and the second moving contact group 33, the two second stationary contacts 23 can be connected and connected to conduct electricity, that is, from Figure 3As shown in the dashed circuit diagram, the second stationary contact 23 on the left, the first moving contact group 32, the connecting conductor 21, the second moving contact group 33, and the second stationary contact 23 on the right are connected in sequence to achieve a series circuit. Similarly, for example, in... Figure 5 In the circuit, the switching switch 100 can connect contacts A1 and B1 to realize the series connection of two 400V battery packs, that is, the second voltage platform is an 800V voltage platform.
[0039] Therefore, the switching switch 100 can change the series and parallel connection of the circuit according to different charging scenarios, and realize the switching of different voltage platforms for charging without the need for a boost converter or traction inverter, thereby simplifying the charging system architecture, improving charging efficiency, and reducing costs.
[0040] Please refer to Figure 6 , Figure 6 This is a schematic diagram of the stationary contact structure 20 provided in this embodiment, combined with... Figure 1 and Figure 6 Two first stationary contacts 22 are spaced apart along a first direction, two second stationary contacts 23 are spaced apart along a first direction, and a first moving contact group 32 and a second moving contact group 33 are spaced apart along a first direction. Two first stationary contacts 22 and two second stationary contacts 23 are spaced apart along a second direction, and a connecting conductor 21 is spaced apart from the first stationary contacts 22 along a first direction. The first and second directions form an angle, and the first direction is the sliding direction of the slider 31.
[0041] In other words, by setting the positions of the stationary contact, the moving contact group, and the connecting conductor 21, the component distribution inside the switch housing 10 can be optimized, the contact stability between the moving contact structure 30, the stationary contact structure 20, and the connecting conductor 21 can be improved, thereby ensuring the switching reliability of the changeover switch 100.
[0042] It should be noted that, specifically in this embodiment, the first direction and the second direction are perpendicular to each other; that is, the first direction can be understood as the horizontal direction, and the second direction can be understood as the vertical direction. Thus, the two first stationary contacts 22 and the two second stationary contacts 23 are precisely distributed at the four corners of the switch housing 10, which further optimizes the overall layout, facilitates wiring connections, and improves the reliability of the changeover switch 100.
[0043] Specifically, the connecting conductor 21 includes a first bent portion 211, a horizontal portion 212, and a second bent portion 213 connected in sequence. The horizontal portion 212 extends along a first direction, while the first bent portion 211 and the second bent portion 213 both extend along a second direction. The first moving contact group 32 is used to connect the first bent portion 211 and one of the second stationary contacts 23, and the second moving contact 323 is used to connect the second bent portion 213 and the other second stationary contact 23. By providing the first bent portion 211 and the second bent portion 213, it is convenient for the connecting conductor 21 to make contact with the first moving contact group 32 and the second moving contact group 33.
[0044] Furthermore, the two first stationary contacts 22 each have a first contact portion 221 and a second contact portion 222, and the first contact portion 221, the first bending portion 211, the second contact portion 222 and the second bending portion 213 are arranged sequentially at intervals along the first direction.
[0045] In this configuration, one end of the first moving contact group 32 is located between the first contact portion 221 and the first bending portion 211, and one end of the second moving contact group 33 is located between the second contact portion 222 and the second bending portion 213. This allows one end of the first moving contact group 32 to move between the first contact portion 221 and the first bending portion 211, and one end of the second moving contact group 33 to move between the second contact portion 222 and the second bending portion 213, thus shortening the moving distance and ensuring stability during contact.
[0046] Furthermore, one of the second stationary contacts 23 has a third contact portion 231 and a fourth contact portion 232, and the other second stationary contact 23 has a fifth contact portion 233 and a sixth contact portion 234. The third contact portion 231, the fourth contact portion 232, the fifth contact portion 233 and the sixth contact portion 234 are arranged sequentially at intervals along the first direction.
[0047] The other end of the first moving contact group 32 is located between the third contact portion 231 and the fourth contact portion 232; the other end of the second moving contact group 33 is located between the fifth contact portion 233 and the sixth contact portion 234. Similarly, by having the other end of the first moving contact group 32 move between the third contact portion 231 and the fourth contact portion 232, and the other end of the second moving contact group 33 move between the fifth contact portion 233 and the sixth contact portion 234, the moving distance can be shortened, and the stability during contact can be ensured.
[0048] Thus, when the slider 31 slides to the left relative to the switch housing 10 under the action of an external force, the two ends of the first moving contact group 32 contact the first contact portion 221 and the third contact portion 231 respectively, realizing the connection and conduction of the first stationary contact 22 and the second stationary contact 23 on the left; at the same time, the two ends of the second moving contact group 33 contact the second contact portion 222 and the fifth contact portion 233 respectively, realizing the connection and conduction of the first stationary contact 22 and the second stationary contact 23 on the right, so that the circuit is connected in parallel. Conversely, when the slider 31 slides to the right relative to the switch housing 10, the two ends of the first moving contact group 32 contact the first bending portion 211 and the fourth contact portion 232 respectively, while the two ends of the second moving contact group 33 contact the second bending portion 213 and the sixth contact portion 234 respectively, thereby realizing the connection and conduction between the two second stationary contacts 23, so that the circuit is connected in series.
[0049] This configuration limits and shortens the movement distance of the first moving contact group 32 and the second moving contact group 33. On the one hand, it can further optimize the installation space of the switch housing 10 and realize the miniaturization design of the switch 100. On the other hand, it can further improve the contact stability of the first moving contact group 32 and the second moving contact group 33, thereby better ensuring the switching reliability of the switch 100.
[0050] Combination Figure 1 and Figure 6 In this embodiment, the first contact portion 221 and the third contact portion 231 are disposed opposite to each other, and the second contact portion 222 and the fifth contact portion 233 are disposed opposite to each other. Specifically, the sides of the first contact portion 221 and the third contact portion 231 near the first moving contact group 32 are on the same plane, and the sides of the second contact portion 222 and the fifth contact portion 233 near the second moving contact group 33 are on the same plane.
[0051] Thus, when the slider 31 slides to the left relative to the switch housing 10, both ends of the first moving contact group 32 can simultaneously contact the first contact portion 221 and the third contact portion 231, respectively, and both ends of the second moving contact group 33 can simultaneously contact the second contact portion 222 and the fifth contact portion 233, respectively. This ensures close contact between the moving contact group and the contact portion and increases the contact area between the two, thereby further improving the stability of the contact and ensuring the subsequent charging effect.
[0052] Similarly, to increase the contact area between the first moving contact group 32 and the second moving contact group 33 and the connecting conductor 21, thereby improving contact stability and ensuring subsequent charging performance, in this embodiment, the first bent portion 211 is disposed opposite to the fourth contact portion 232, and the second bent portion 213 is disposed opposite to the sixth contact portion 234. Specifically, the sides of the first bent portion 211 and the fourth contact portion 232 near the first moving contact group 32 are on the same plane, and the sides of the second bent portion 213 and the sixth contact portion 234 near the second moving contact group 33 are on the same plane.
[0053] Please continue to combine Figure 1 and Figure 6 In order to facilitate the wiring connection between the two first stationary contacts 22 and the circuit, the two first stationary contacts 22 also have a first wiring portion 223 and a second wiring portion 224 respectively, and the first wiring portion 223 and the second wiring portion 224 are respectively provided corresponding to the first contact portion 221 and the second contact portion 222.
[0054] Specifically, in this embodiment, both the first wiring portion 223 and the second wiring portion 224 are spaced apart from the bottom wall of the switch housing 10 along a third direction. The first direction, the second direction, and the third direction are perpendicular to each other.
[0055] Similarly, in order to facilitate the wiring connection between the two second stationary contacts 23 and the circuit, the two second stationary contacts 23 also have a third wiring portion 235 and a fourth wiring portion 236 respectively. The third wiring portion 235 is correspondingly arranged with the third contact portion 231 and the fourth contact portion 232, and the fourth wiring portion 236 is correspondingly arranged with the fifth contact portion 233 and the sixth contact portion 234.
[0056] Specifically, in this embodiment, the third wiring portion 235 and the fourth wiring portion 236 are both spaced apart from the bottom wall of the switch housing 10 along a third direction.
[0057] By designing the positions of the first wiring section 223, the second wiring section 224, the third wiring section 235, and the fourth wiring section 236, and by spacing them from the bottom wall of the switch housing 10, the internal spatial layout of the switch housing 10 can be optimized, thus meeting the miniaturization design requirements of the switch 100.
[0058] Please refer to Figure 7 , Figure 7 This is an exploded view of the moving contact structure 30 provided in this embodiment, combined with... Figure 1 and Figure 7In order to facilitate the installation of the first moving contact group 32 and the second moving contact group 33 and improve their installation stability, in this embodiment, the sliding member 31 is provided with a first mounting groove 311 and a second mounting groove 312. The first mounting groove 311 and the second mounting groove 312 are spaced apart. The first moving contact group 32 is disposed in the first mounting groove 311 and the second moving contact group 33 is disposed in the second mounting groove 312.
[0059] Further, please refer to Figure 8 , Figure 8 This is an exploded view of the first moving contact group 32 and the second moving contact group 33 provided in this embodiment, combined with... Figure 1 , Figure 7 and Figure 8 The first moving contact group 32 includes a first mounting base 321, a first moving contact 322, and a second moving contact 323. The first mounting base 321 is disposed on the sliding member 31, and both the first moving contact 322 and the second moving contact 323 are disposed on the first mounting base 321. The second moving contact group 33 includes a second mounting base 331, a third moving contact 332, and a fourth moving contact 333. The second mounting base 331 is disposed on the sliding member 31, and both the third moving contact 332 and the fourth moving contact 333 are disposed on the second mounting base 331.
[0060] The first moving contact 322, the second moving contact 323, the third moving contact 332, and the fourth moving contact 333 are arranged sequentially at intervals. The first moving contact 322 is used to connect and conduct one of the first stationary contacts 22 and one of the second stationary contacts 23. The second moving contact 323 is used to connect and conduct the connecting conductor 21 and one of the second stationary contacts 23. The third moving contact 332 is used to connect and conduct the connecting conductor 21 and another second stationary contact 23. The fourth moving contact 333 is used to connect and conduct another first stationary contact 22 and another second stationary contact 23.
[0061] Combination Figure 6 and Figure 8 Specifically, in this embodiment, the two ends of the first moving contact 322 are respectively used to contact the first contact portion 221 and the third contact portion 231; the two ends of the second moving contact 323 are respectively used to contact the first bent portion 211 and the fourth contact portion 232; the two ends of the third moving contact 332 are respectively used to contact the second contact portion 222 and the fifth contact portion 233; and the two ends of the fourth moving contact 333 are respectively used to contact the second bent portion 213 and the sixth contact portion 234. Through the specific distribution of the first moving contact 322, the second moving contact 323, the third moving contact 332, and the fourth moving contact 333, it can be ensured that during the switching of parallel and series circuits, the contact between the moving contact and the stationary contact or the connecting conductor 21 does not affect each other, further improving the switching reliability and stability of the switching switch 100, thereby enhancing the subsequent charging effect.
[0062] To improve the contact stability of the first moving contact 322 and the second moving contact 323 and further enhance the subsequent charging effect, in this embodiment, the first moving contact group 32 further includes a first elastic contact finger 324 and a second elastic contact finger 325. The first elastic contact finger 324 is located between the first moving contact 322 and the first mounting base 321, and simultaneously abuts against both the first moving contact 322 and the first mounting base 321; the second elastic contact finger 325 is located between the second moving contact 323 and the first mounting base 321, and simultaneously abuts against both the second moving contact 323 and the first mounting base 321.
[0063] Similarly, in order to improve the contact stability of the third moving contact 332 and the fourth moving contact 333, in this embodiment, the second moving contact group 33 further includes a third elastic contact finger 334 and a fourth elastic contact finger 335. The third elastic contact finger 334 is located between the third moving contact 332 and the second mounting base 331, and simultaneously abuts against both the third moving contact 332 and the second mounting base 331; the fourth elastic contact finger 335 is located between the fourth moving contact 333 and the second mounting base 331, and simultaneously abuts against both the fourth moving contact 333 and the second mounting base 331.
[0064] Please continue to combine Figure 8 Specifically, the first mounting base 321 includes a first base plate 3211, a first partition plate 3212, and a first top plate 3213. The two ends of the first partition plate 3212 are respectively connected to the first base plate 3211 and the first top plate 3213. The first moving contact 322 and the second moving contact 323 are respectively disposed on opposite sides of the first partition plate 3212, and both the first moving contact 322 and the second moving contact 323 are located between the first base plate 3211 and the first top plate 3213.
[0065] Specifically, in this embodiment, the first elastic contact finger 324 simultaneously abuts against the first moving contact 322 and the first partition 3212, and the second elastic contact finger 325 simultaneously abuts against the second moving contact 323 and the first partition 3212. Through the mutual cooperation of the first base plate 3211, the first partition 3212, and the first top plate 3213, the installation stability of the first moving contact 322, the first elastic contact finger 324, the second moving contact 323, and the second elastic contact finger 325 can be improved, and it can be ensured that they do not interfere with each other during contact.
[0066] Similarly, the second mounting base 331 includes a second base plate 3311, a second partition plate 3312, and a second top plate 3313. The two ends of the second partition plate 3312 are respectively connected to the second base plate 3311 and the second top plate 3313. The third moving contact 332 and the fourth moving contact 333 are respectively disposed on opposite sides of the second partition plate 3312, and both the third moving contact 332 and the fourth moving contact 333 are located between the second base plate 3311 and the second top plate 3313.
[0067] Specifically, in this embodiment, the third elastic contact finger 334 simultaneously abuts against the third moving contact 332 and the second partition 3312, and the fourth elastic contact finger 335 simultaneously abuts against the fourth moving contact 333 and the second partition 3312. Similarly, through the mutual cooperation of the second base plate 3311, the second partition 3312, and the second top plate 3313, the installation stability of the third moving contact 332, the third elastic contact finger 334, the fourth moving contact 333, and the fourth elastic contact finger 335 can be improved, and it can be ensured that they do not interfere with each other during the contact process.
[0068] To further improve the installation stability of the first moving contact 322 and the second moving contact 323, the first mounting base 321 also includes a first connecting post 3214 and a second connecting post 3215. The first connecting post 3214 and the second connecting post 3215 are respectively disposed on opposite sides of the first partition 3212. The first connecting post 3214 passes through the first moving contact 322, and the second connecting post 3215 passes through the second moving contact 323. Specifically, in this embodiment, the first connecting post 3214 also passes through the first elastic contact finger 324, and the second connecting post 3215 also passes through the second elastic contact finger 325.
[0069] Similarly, to further improve the installation stability of the third moving contact 332 and the fourth moving contact 333, the second mounting base 331 also includes a third connecting post 3314 and a fourth connecting post 3315. The third connecting post 3314 and the fourth connecting post 3315 are respectively disposed on opposite sides of the second partition 3312. The third connecting post 3314 passes through the third moving contact 332, and the fourth connecting post 3315 passes through the fourth moving contact 333. Specifically, in this embodiment, the third connecting post 3314 also passes through the third elastic contact finger 334, and the fourth connecting post 3315 also passes through the fourth elastic contact finger 335.
[0070] Please continue to combine Figure 1 The switch 100 also includes a drive device 40, which is disposed in the switch housing 10 and connected to the slider 31, for driving the slider 31 to slide relative to the switch housing 10. In other words, this embodiment achieves a series-parallel connection in the automated switching circuit by using the drive device 40 to drive the slider 31 to slide, thereby improving switching efficiency. Of course, in other embodiments, the slider 31 can also be manually moved. For example, the operator can pull or press down the relevant mechanical structure connected to the slider 31 to achieve the reciprocating movement of the slider 31.
[0071] For details, please refer to Figure 9 , Figure 9 This is a schematic diagram of the structure of the driving device 40 provided in this embodiment, combined with... Figure 1 and Figure 9 The drive device 40 includes a motor 41, a cam mechanism 42 and a push plate 43. The motor 41 is disposed in the switch housing 10. The push plate 43 is connected to the sliding member 31 and has a cam groove 431. The cam mechanism 42 is connected to the motor 41 for transmission, and the cam of the cam mechanism 42 is disposed in the cam groove 431.
[0072] It is easy to understand that by rotating the motor 41 forward or backward, the cam of the cam mechanism 42 is driven to rotate in the cam groove 431, which can push the push plate 43 to swing, thereby using the push plate 43 to push the slider 31 to reciprocate within the switch housing 10.
[0073] Please continue to combine Figure 7 The sliding member 31 includes a first sliding frame 313 and a second sliding frame 314 connected to each other. Both the first sliding frame 313 and the second sliding frame 314 are slidably disposed on the switch housing 10. The first sliding frame 313 is provided with a first mounting groove 311, and the second sliding frame 314 is provided with a second mounting groove 312.
[0074] Combination Figure 7 and Figure 9 It should be noted that, specifically in this embodiment, the first sliding frame 313 and the second sliding frame 314 are separate structures, and the push plate 43 is connected to both the first sliding frame 313 and the second sliding frame 314 to achieve power transmission. Of course, in other embodiments, the first sliding frame 313 and the second sliding frame 314 can also be an integral structure.
[0075] Please refer to Figure 10 , Figure 10 This is a schematic diagram of the structure of the switch housing 10 provided in this embodiment, combined with... Figure 1 and Figure 10 To facilitate the installation of the connecting conductor 21 and the two first stationary contacts 22 and improve their installation stability, the switch housing 10 has a first slot 11 and two second slots 12. The first slot 11 is connected to both second slots 12. The connecting conductor 21 is set in the first slot 11, and the two first stationary contacts 22 are respectively set in the two second slots 12.
[0076] Similarly, in order to facilitate the installation of the two second stationary contacts 23 and improve their installation stability, in this embodiment, the switch housing 10 is also provided with two third slots 13, and the two second stationary contacts 23 are respectively disposed in the two third slots 13.
[0077] Furthermore, the switch housing 10 is also provided with a first slide groove 14, a second slide groove 15 and a third slide groove 16, which are connected in sequence; the sliding member 31 is slidably disposed in the first slide groove 14, the second slide groove 15 and the third slide groove 16, and the push plate 43 is located in the first slide groove 14, the first moving contact group 32 is located in the second slide groove 15 and the second moving contact group 33 is located in the third slide groove 16.
[0078] The first slide groove 14, the second slide groove 15 and the third slide groove 16 can also facilitate the sliding operation of the moving contact structure 30 and the push plate 43, thereby ensuring the reliability and stability during the circuit switching process.
[0079] In summary, embodiments of the present invention provide a switching switch 100, which includes a switch housing 10, a stationary contact structure 20, and a moving contact structure 30. The stationary contact structure 20 includes connecting conductors 21, two first stationary contacts 22, and two second stationary contacts 23, all disposed in the switch housing 10, and the two first stationary contacts 22 and two second stationary contacts 23 are used to be disposed in a circuit. The moving contact structure 30 includes a sliding member 31, a first moving contact group 32, and a second moving contact group 33. The sliding member 31 is slidably disposed in the switch housing 10, and the first moving contact group 32 and the second moving contact group 33 are spaced apart. All are disposed on the sliding member 31; wherein, the sliding member 31 is used to slide relative to the switch housing 10 under the action of external force, so that the first moving contact group 32 connects and conducts one of the first stationary contacts 22 and one of the second stationary contacts 23, and the second moving contact group 33 connects and conducts another first stationary contact 22 and another second stationary contact 23, so that the circuit is connected in parallel to form a first voltage platform; or, so that the first moving contact group 32 connects and conducts one of the second stationary contacts 23 and the connecting conductor 21, and the second moving contact group 33 connects and conducts another second stationary contact 23 and the connecting conductor 21, so that the circuit is connected in series to form a second voltage platform.
[0080] In other words, in low-voltage charging scenarios, an external force drives the slider 31 to slide a certain distance relative to the switch housing 10, causing the first moving contact group 32 to simultaneously contact one of the first stationary contacts 22 and one of the second stationary contacts 23, and the second moving contact group 33 to simultaneously contact the other first stationary contact 22 and the other second stationary contact 23. This connects the two circuits, achieving parallel circuitry and forming a first voltage platform, which can be understood as a charging platform with a relatively low voltage. In high-voltage charging scenarios, an external force also drives the slider 31 to slide a certain distance in the opposite direction relative to the switch housing 10, causing the first moving contact group 32 to simultaneously contact one of the second stationary contacts 23 and the connecting conductor 21, and the second moving contact group 33 to simultaneously contact the other second stationary contact 23 and the connecting conductor 21. This connects the two second stationary contacts 23, achieving series circuitry and forming a second voltage platform, which can be understood as a charging platform with a relatively high voltage, thereby increasing the vehicle's charging speed. Therefore, the switching switch 100 can change the series and parallel connection of the circuit according to different charging scenarios, and realize the switching of different voltage platforms for charging without the need for a boost converter or traction inverter, thereby simplifying the charging system architecture, improving charging efficiency, and reducing costs.
[0081] The above description is merely a specific embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention can have various modifications and variations. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.
Claims
1. A switching switch, characterized in that, The switching switch (100) is used to switch the series or parallel connection of circuits, and includes: Switch housing (10); A stationary contact structure (20) includes connecting conductors (21) all disposed in the switch housing (10), two first stationary contacts (22), and two second stationary contacts (23), the two first stationary contacts (22) and the two second stationary contacts (23) being disposed in the circuit; and The moving contact structure (30) includes a slider (31), a first moving contact group (32) and a second moving contact group (33). The slider (31) is slidably disposed on the switch housing (10). The first moving contact group (32) and the second moving contact group (33) are spaced apart and are both disposed on the slider (31). The sliding member (31) is used to slide relative to the switch housing (10) under the action of external force, so that the first moving contact group (32) connects and conducts one of the first stationary contacts (22) and one of the second stationary contacts (23), and the second moving contact group (33) connects and conducts another first stationary contact (22) and another second stationary contact (23), so that the circuit is connected in parallel to form a first voltage platform; or, so that the first moving contact group (32) connects and conducts one of the second stationary contacts (23) and the connecting conductor (21), and the second moving contact group (33) connects and conducts another second stationary contact (23) and the connecting conductor (21), so that the circuit is connected in series to form a second voltage platform.
2. The switching switch according to claim 1, characterized in that, Two first stationary contacts (22) are spaced apart along a first direction, two second stationary contacts (23) are spaced apart along the first direction, and the first moving contact group (32) and the second moving contact group (33) are spaced apart along the first direction; the two first stationary contacts (22) and the two second stationary contacts (23) are spaced apart along a second direction, and the connecting conductor (21) and the first stationary contacts (22) are spaced apart along the first direction; Wherein, the first direction forms an angle with the second direction, and the first direction is the sliding direction of the slider (31).
3. The switching switch according to claim 2, characterized in that, The connecting conductor (21) includes a first bent portion (211), a horizontal portion (212), and a second bent portion (213) connected in sequence. The horizontal portion (212) extends along the first direction, and the first bent portion (211) and the second bent portion (213) both extend along the second direction. The first moving contact group (32) is used to connect and conduct the first bent portion (211) and one of the second stationary contacts (23). The second moving contact (323) is used to connect and conduct the second bent portion (213) and another second stationary contact (23).
4. The switching switch according to claim 3, characterized in that, The two first stationary contacts (22) each have a first contact portion (221) and a second contact portion (222), and the first contact portion (221), the first bending portion (211), the second contact portion (222) and the second bending portion (213) are arranged at intervals along the first direction; Wherein, one end of the first moving contact group (32) is located between the first contact portion (221) and the first bending portion (211), and one end of the second moving contact group (33) is located between the second contact portion (222) and the second bending portion (213).
5. The switching switch according to claim 4, characterized in that, One of the second stationary contacts (23) has a third contact portion (231) and a fourth contact portion (232), and the other second stationary contact (23) has a fifth contact portion (233) and a sixth contact portion (234). The third contact portion (231), the fourth contact portion (232), the fifth contact portion (233) and the sixth contact portion (234) are arranged at intervals along the first direction. The other end of the first moving contact group (32) is located between the third contact portion (231) and the fourth contact portion (232); the other end of the second moving contact group (33) is located between the fifth contact portion (233) and the sixth contact portion (234).
6. The switching switch according to claim 5, characterized in that, The first contact portion (221) is disposed opposite to the third contact portion (231), and the second contact portion (222) is disposed opposite to the fifth contact portion (233).
7. The switching switch according to claim 5, characterized in that, The first bent portion (211) is disposed opposite to the fourth contact portion (232), and the second bent portion (213) is disposed opposite to the sixth contact portion (234).
8. The switching switch according to claim 5, characterized in that, The two first stationary contacts (22) also each have a first wiring portion (223) and a second wiring portion (224), the first wiring portion (223) and the second wiring portion (224) being respectively disposed corresponding to the first contact portion (221) and the second contact portion (222); and / or, The two second stationary contacts (23) also have a third wiring portion (235) and a fourth wiring portion (236), respectively. The third wiring portion (235) is correspondingly arranged with the third contact portion (231) and the fourth contact portion (232), and the fourth wiring portion (236) is correspondingly arranged with the fifth contact portion (233) and the sixth contact portion (234).
9. The switching switch according to claim 1, characterized in that, The first moving contact group (32) includes a first mounting base (321), a first moving contact (322), and a second moving contact (323). The first mounting base (321) is disposed on the slider (31), and both the first moving contact (322) and the second moving contact (323) are disposed on the first mounting base (321). The second moving contact group (33) includes a second mounting base (331), a third moving contact (332), and a fourth moving contact (333). The second mounting base (331) is disposed on the slider (31), and both the third moving contact (332) and the fourth moving contact (333) are disposed on the second mounting base (331). The first moving contact (322), the second moving contact (323), the third moving contact (332), and the fourth moving contact (333) are arranged sequentially at intervals. The first moving contact (322) is used to connect and conduct one of the first stationary contacts (22) and one of the second stationary contacts (23). The second moving contact (323) is used to connect and conduct the connecting conductor (21) and one of the second stationary contacts (23). The third moving contact (332) is used to connect and conduct the connecting conductor (21) and another second stationary contact (23). The fourth moving contact (333) is used to connect and conduct another first stationary contact (22) and another second stationary contact (23).
10. The switching switch according to any one of claims 1-9, characterized in that, The switching switch (100) further includes a driving device (40), which is disposed in the switch housing (10) and connected to the slider (31) for driving the slider (31) to slide relative to the switch housing (10).