Switch, voltage conversion circuit and vehicle

Abstract

The utility model relates to a switch, which comprises an actuating assembly, a first positive electrode conductive piece, a first negative electrode conductive piece, a second positive electrode conductive piece, a second negative electrode conductive piece, a first movable conductive piece, a second movable conductive piece and a third movable conductive piece, the first movable conductive part is used for connecting and disconnecting the electric connection between the first positive conductive part and the second positive conductive part, and the second movable conductive part is used for connecting and disconnecting the electric connection between the first negative conductive part and the second negative conductive part. The third movable conductive part is used for connecting and disconnecting the electric connection between the first negative conductive part and the second positive conductive part; the actuating assembly is used for driving the first movable conductive piece to move between the first position and the second position, the second movable conductive piece to move between the third position and the fourth position, and the third movable conductive piece to move between the fifth position and the sixth position. The utility model has the characteristics of lower temperature rise and lower electric energy loss.

Description

TECHNICAL FIELD

[0001] The utility model relates to vehicle technical field, concretely relates to a switch, voltage conversion circuit and vehicle. BACKGROUND

[0002] With the development of electric vehicles, the improvement of battery fast charging capacity, the battery pack voltage and the charging pile voltage are also constantly improving. Therefore, there may be different situations of battery pack voltage and charging pile voltage, and the prior art usually uses a boost module (BOOST circuit) and a buck module (BUCK circuit) to boost and buck to match the battery pack voltage and the charging pile voltage.

[0003] However, the boost module (BOOST circuit) and the buck module (BUCK circuit) in the prior art need to be matched by inductance and capacitance to realize boost and buck, which has the technical problems of high temperature rise and large power loss. UTILITY MODEL CONTENTS

[0004] The utility model aims to provide a switch, voltage conversion circuit and vehicle to alleviate or eliminate at least one of the above technical problems.

[0005] The utility model discloses a switch, characterized in that the switch is suitable for being used in a voltage conversion circuit, and the switch comprises an actuating assembly, a first positive electrode conductive part, a first negative electrode conductive part, a second positive electrode conductive part, a second negative electrode conductive part, a first movable conductive part, a second movable conductive part and a third movable conductive part,

[0006] The actuating assembly is used to drive the first movable conductive part to move between a first position and a second position, drive the second movable conductive part to move between a third position and a fourth position, and drive the third movable conductive part to move between a fifth position and a sixth position;

[0007] When the first movable conductive part is in the first position, the second movable conductive part is in the third position, and the third movable conductive part is in the fifth position, the first movable conductive part connects the electrical connection between the first positive electrode conductive part and the second positive electrode conductive part, the second movable conductive part connects the electrical connection between the first negative electrode conductive part and the second negative electrode conductive part, and the third movable conductive part disconnects the electrical connection between the first negative electrode conductive part and the second positive electrode conductive part;

[0008] When the first movable contact is in the second position, the second movable contact is in the fourth position, and the third movable contact is in the sixth position, the first movable contact disconnects the electrical connection between the first positive electrode conductor and the second positive electrode conductor, the second movable contact disconnects the electrical connection between the first negative electrode conductor and the second negative electrode conductor, and the third movable contact connects the electrical connection between the first negative electrode conductor and the second positive electrode conductor.

[0009] Optionally, the actuating assembly comprises a bracket, and the first movable contact, the second movable contact and the third movable contact are all mounted on the bracket.

[0010] Optionally, the actuating assembly further comprises an electromagnetic coil, an armature cooperating with the electromagnetic coil, and a spring for driving the armature to reset, and the armature is connected with the bracket.

[0011] Optionally, the bracket comprises a support arm and a connecting rod extending upward from the support arm, the first movable contact and the second movable contact are both mounted on the support arm, and the third movable contact is mounted on the upper end of the connecting rod.

[0012] Optionally, the first positive electrode conductor is provided with a first positive electrode contact portion, the first negative electrode conductor is provided with a first negative electrode contact portion, the second positive electrode conductor is provided with a second positive electrode contact portion, the second negative electrode conductor is provided with a second negative electrode contact portion, the first movable contact is provided with a first movable contact portion and a second movable contact portion which are in electrical connection with each other, the second movable contact is provided with a third movable contact portion and a fourth movable contact portion which are in electrical connection with each other, the third movable contact is provided with a fifth movable contact portion and a sixth movable contact portion which are in electrical connection with each other, the first movable contact portion is below the first positive electrode contact portion, the second movable contact portion is below the second positive electrode contact portion, the third movable contact portion is below the first negative electrode contact portion, the fourth movable contact portion is below the second negative electrode contact portion, the fifth movable contact portion is above the first negative electrode contact portion, and the sixth movable contact portion is above the second positive electrode contact portion.

[0013] Optionally, the first positive electrode conductor is provided with a first positive electrode wiring portion, the first negative electrode conductor is provided with a first negative electrode wiring portion, the second positive electrode conductor is provided with a second positive electrode wiring portion, and the second negative electrode conductor is provided with a second negative electrode wiring portion.

[0014] Optionally, the first positive electrode conductor and the second positive electrode conductor are arranged on one side of the switch, and the first negative electrode conductor and the second negative electrode conductor are arranged on the other side of the switch.

[0015] Optionally, the switch further comprises a base and a shell enclosing a cavity, the actuating assembly, the first positive conductive piece, the first negative conductive piece, the second positive conductive piece, the second negative conductive piece, the first movable conductive piece, the second movable conductive piece and the third movable conductive piece are all installed in the cavity.

[0016] The utility model discloses still proposed a kind of voltage conversion circuit, including first power supply, second power supply and any one of the switch described above, the positive pole of the first power supply is electrically connected with the first positive conductive piece, the negative pole of the first power supply is electrically connected with the first negative conductive piece, the positive pole of the second power supply is electrically connected with the second positive conductive piece, the negative pole of the second power supply is electrically connected with the second negative conductive piece.

[0017] The utility model discloses still proposed a kind of vehicle, including any one of the switch described above.

[0018] The utility model has following characteristics: can realize the transformation of voltage conversion circuit by the action of switch internal physical structure, to realize the step-up and step-down of battery pack.Relative to traditional battery pack step-up and step-down scheme, the utility model has the characteristics of smaller temperature rise and smaller electric energy loss. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is structural schematic drawing of the switch described in part embodiment;

[0020] Figure 2 It is explosion drawing of the switch described in part embodiment;

[0021] Figure 3 It is structural schematic drawing of part structure of the switch described in part embodiment;

[0022] Figure 4 It is one of working state of the switch described in part embodiment;

[0023] Figure 5 It is two of working state of the switch described in part embodiment;

[0024] Figure 6 It is parallel connection schematic drawing of the voltage conversion circuit described in part embodiment;

[0025] Figure 7 It is series connection schematic drawing of the voltage conversion circuit described in part embodiment.

[0026] In the diagram, 1—first positive conductive element, 2—first negative conductive element, 3—second positive conductive element, 4—second negative conductive element, 5—first moving conductive element, 6—second moving conductive element, 7—third moving conductive element, 8—base, 9—electromagnetic coil, 10—spring, 11—armature, 12—support arm, 13—connecting rod, 14—housing, 15—first power source, 16—second power source, 101—first positive contact, 102—first positive wiring part, 201—first negative contact, 202—first negative wiring part, 301—second positive contact, 302—second positive wiring part, 401—second negative contact, 402—second negative wiring part, 501—first moving contact, 502—second moving contact, 601—third moving contact, 602—fourth moving contact, 701—fifth moving contact, 702—sixth moving contact. Detailed Implementation

[0027] The embodiments of this utility model will be described below with reference to the accompanying drawings and preferred embodiments. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification. This utility model can also be implemented or applied through other different specific embodiments, and various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of this utility model. It should be understood that the preferred embodiments are only for illustrating this utility model and not for limiting the scope of protection of this utility model.

[0028] It should be noted that the illustrations provided in the following embodiments are only schematic representations of the basic concept of the present invention. The illustrations only show the components related to the present invention and are not drawn according to the actual number, shape and size of the components in the actual implementation. In the actual implementation, the form, quantity and proportion of each component can be arbitrarily changed, and the layout of the components may also be more complex.

[0029] like Figures 1 to 5 The switch shown is suitable for use in a voltage conversion circuit. The switch includes an actuation component, a first positive conductive element 1, a first negative conductive element 2, a second positive conductive element 3, a second negative conductive element 4, a first movable conductive element 5, a second movable conductive element 6, and a third movable conductive element 7.

[0030] The first moving conductive element 5 is used to connect and disconnect the electrical connection between the first positive conductive element 1 and the second positive conductive element 3; the second moving conductive element 6 is used to connect and disconnect the electrical connection between the first negative conductive element 2 and the second negative conductive element 4; and the third moving conductive element 7 is used to connect and disconnect the electrical connection between the first negative conductive element 2 and the second positive conductive element 3.

[0031] The actuating assembly is used to drive the first movable conductor 5 to move between the first position and the second position, drive the second movable conductor 6 to move between the third position and the fourth position, and drive the third movable conductor 7 to move between the fifth position and the sixth position.

[0032] When the first movable conductor 5 is located at the first position, the second movable conductor 6 is located at the third position, and the third movable conductor 7 is located at the fifth position; at this time, the first movable conductor 5 connects the electrical connection between the first positive conductor 1 and the second positive conductor 3, the second movable conductor 6 connects the electrical connection between the first negative conductor 2 and the second negative conductor 4, and the third movable conductor 7 disconnects the electrical connection between the first negative conductor 2 and the second positive conductor 3.

[0033] When the first movable conductor 5 is located at the second position, the second movable conductor 6 is located at the fourth position, and the third movable conductor 7 is located at the sixth position; at this time, the first movable conductor 5 disconnects the electrical connection between the first positive conductor 1 and the second positive conductor 3, the second movable conductor 6 disconnects the electrical connection between the first negative conductor 2 and the second negative conductor 4, and the third movable conductor 7 connects the electrical connection between the first negative conductor 2 and the second positive conductor 3.

[0034] By using the above technical solution, the voltage conversion circuit can be changed by the action of the internal physical structure of the switch, so as to realize the voltage conversion of the battery pack. Compared with the traditional BOOST circuit and BUCK circuit, the voltage conversion circuit is changed by using the above switch, and then the voltage conversion of the battery pack is realized, which has the characteristics of smaller temperature rise and smaller power loss.

[0035] The above switch is applied in the voltage conversion circuit. Figure 5 and Figure 6 When the first movable conductor 5 is located at the first position, the second movable conductor 6 is located at the third position, and the third movable conductor 7 is located at the fifth position; at this time, the first movable conductor 5 connects the electrical connection between the first positive conductor 1 and the second positive conductor 3, the second movable conductor 6 connects the electrical connection between the first negative conductor 2 and the second negative conductor 4, and the third movable conductor 7 disconnects the electrical connection between the first negative conductor 2 and the second positive conductor 3. The first power supply 15 and the second power supply 16 are connected in parallel, and the output voltage of the voltage conversion circuit is U.

[0036] When the first movable conductor 5 is located at the second position, the second movable conductor 6 is located at the fourth position, and the third movable conductor 7 is located at the sixth position; at this time, the first movable conductor 5 disconnects the electrical connection between the first positive conductor 1 and the second positive conductor 3, the second movable conductor 6 disconnects the electrical connection between the first negative conductor 2 and the second negative conductor 4, and the third movable conductor 7 connects the electrical connection between the first negative conductor 2 and the second positive conductor 3. Figure 4 and Figure 7As shown, when the first movable conducting member 5 is located at the second position, the second movable conducting member 6 is located at the fourth position, and the third movable conducting member 7 is located at the sixth position, the first movable conducting member 5 disconnects the electrical connection between the first positive conducting member 1 and the second positive conducting member 3, the second movable conducting member 6 disconnects the electrical connection between the first negative conducting member 2 and the second negative conducting member 4, and the third movable conducting member 7 connects the electrical connection between the first negative conducting member 2 and the second positive conducting member 3. The first power supply 15 and the second power supply 16 are connected in series, and the output voltage of the voltage conversion circuit is 2U.

[0037] In some embodiments, the actuating assembly includes a bracket, and the first movable conducting member 5, the second movable conducting member 6, and the third movable conducting member 7 are all mounted on the bracket. By driving the movement of one bracket, the first movable conducting member 5, the second movable conducting member 6, and the third movable conducting member 7 can be driven to move synchronously. This technical solution has the characteristics of simple structure, compact structure, and easy control.

[0038] In some embodiments, the actuating assembly further includes an electromagnetic coil 9, an armature 11 cooperating with the electromagnetic coil 9, and a spring 10 for driving the armature 11 to reset, and the armature 11 is connected with the bracket. The electromagnetic coil 9 generates a magnetic field when powered, and the magnetic field drives the armature 11 to move upward, so that the armature 11 can be driven to move from the initial position to the terminal position. At this time, the first movable conducting member 5 is located at the first position, the second movable conducting member 6 is located at the third position, and the third movable conducting member 7 is located at the fifth position. When the electromagnetic coil 9 is powered off, the armature 11 moves downward under the spring force of the spring 10, and the armature 11 resets to the initial position. At this time, the first movable conducting member 5 is located at the second position, the second movable conducting member 6 is located at the fourth position, and the third movable conducting member 7 is located at the sixth position. The electromagnetic coil 9 and the armature 11 are used to drive the bracket, which has the characteristics of easy implementation and easy control. Obviously, in specific implementation, in addition to the electromagnetic coil 9 and the armature 11, the actuating assembly can also use other implementation schemes, such as a pneumatic linear driving mechanism.

[0039] As a preferred example, the bracket includes a support arm 12 and a connecting rod 13 extending upward from the support arm 12, the first movable conducting member 5 and the second movable conducting member 6 are respectively mounted on the two end portions of the support arm 12, and the third movable conducting member 7 is mounted on the upper end of the connecting rod 13. By driving the bracket to move up and down, the positions of the first movable conducting member 5, the second movable conducting member 6, and the third movable conducting member 7 can be switched, which has the characteristics of simple structure and easy implementation.

[0040] In some embodiments, a first positive electrode contact 101 is provided on the first positive electrode conductive member 1, a first negative electrode contact 201 is provided on the first negative electrode conductive member 2, a second positive electrode contact 301 is provided on the second positive electrode conductive member 3, a second negative electrode contact 401 is provided on the second negative electrode conductive member 4, a first movable conductive member 5 is provided with a first movable contact 501 and a second movable contact 502 that are mutually conductive, and a second movable conductive member 6 is provided with a third movable contact 601 and a fourth movable contact 602 that are mutually conductive. Electrical component 7 is provided with a fifth moving contact 701 and a sixth moving contact 702 that are mutually conductive. The first moving contact 501 is located below the first positive contact 101, the second moving contact 502 is located below the second positive contact 301, the third moving contact 601 is located below the first negative contact 201, the fourth moving contact 602 is located below the second negative contact 401, the fifth moving contact 701 is located above the first negative contact 201, and the sixth moving contact 702 is located above the second positive contact 301. The above technical solution has the characteristic of reasonable structural arrangement.

[0041] In some embodiments, a first positive electrode conductive member 1 is provided with a first positive electrode connection portion 102, a first negative electrode conductive member 2 is provided with a first negative electrode connection portion 202, a second positive electrode conductive member 3 is provided with a second positive electrode connection portion 302, and a second negative electrode conductive member 4 is provided with a second negative electrode connection portion 402. This technical solution provides convenience for connecting power cords by providing connection portions.

[0042] In some embodiments, the first positive conductive element 1 and the second positive conductive element 3 are disposed on one side, and the first negative conductive element 2 and the second negative conductive element 4 are disposed on the other side. The above technical solution has the characteristic of reasonable structural arrangement.

[0043] In some embodiments, the switch further includes a base 8 and a housing 14 forming a cavity, in which the actuation component, the first positive conductive element 1, the first negative conductive element 2, the second positive conductive element 3, the second negative conductive element 4, the first moving conductive element 5, the second moving conductive element 6, and the third moving conductive element 7 are all installed. Using this technical solution, the base 8 and the housing 14 can provide protection for the actuation component, the first positive conductive element 1, the first negative conductive element 2, the second positive conductive element 3, the second negative conductive element 4, the first moving conductive element 5, the second moving conductive element 6, and the third moving conductive element 7. In a specific implementation, the electromagnetic coil 9 can be fixedly mounted on the base 8, and the base 8 and the housing 14 can be fastened together with screws.

[0044] like Figure 6 and Figure 7The utility model also proposes a voltage conversion circuit, including first power supply 15, second power supply 16 and the switch of any preceding item, the anode of first power supply 15 is electrically connected with first positive pole conductive part 1, the cathode of first power supply 15 is electrically connected with first negative pole conductive part 2, the anode of second power supply 16 is electrically connected with second positive pole conductive part 3, the cathode of second power supply 16 is electrically connected with second negative pole conductive part 4.In the specific implementation, the electric connection of above-mentioned can be realized through power cord.

[0045] Adopt the voltage conversion circuit, can realize the transformation of voltage conversion circuit through the action of switch internal physical structure, thereby realizes the voltage conversion circuit of battery pack, has the characteristics of smaller temperature rise, smaller electric energy loss.

[0046] The utility model also proposes a vehicle, including the switch of any preceding item.

[0047] The above embodiment is only for the preferred embodiment of the utility model, the protection scope of the utility model is not limited to this.The equivalent replacement or transformation of technical personnel in this technical field on the basis of the utility model is all within the protection scope of the utility model.In the description of the present specification, the description of reference terms "an embodiment", "some embodiments", "example", "specific example" or "some examples" means that the specific features, structure, material or characteristics combined with the embodiment or example are contained in at least one embodiment or example of the utility model.In the present specification, the illustrative representation of the above-mentioned terms is not necessarily for the same embodiment or example.Moreover, the specific features, structure, material or characteristics described can be combined in any one or more embodiments or examples in a suitable way.In addition, the technical personnel in the art can combine and combine the different embodiments or examples described in the present specification.

Claims

1. A switch, characterized by The switch is suitable for use in a voltage conversion circuit, and comprises an actuating assembly, a first positive electrode conducting member (1), a first negative electrode conducting member (2), a second positive electrode conducting member (3), a second negative electrode conducting member (4), a first movable conducting member (5), a second movable conducting member (6), and a third movable conducting member (7), The actuating assembly is used to drive the first movable conducting member (5) to move between a first position and a second position, to drive the second movable conducting member (6) to move between a third position and a fourth position, and to drive the third movable conducting member (7) to move between a fifth position and a sixth position; When the first movable conducting member (5) is in the first position, the second movable conducting member (6) is in the third position, the third movable conducting member (7) is in the fifth position, the first movable conducting member (5) connects the first positive electrode conducting member (1) and the second positive electrode conducting member (3), the second movable conducting member (6) connects the first negative electrode conducting member (2) and the second negative electrode conducting member (4), and the third movable conducting member (7) disconnects the first negative electrode conducting member (2) and the second positive electrode conducting member (3). When the first movable conducting member (5) is in the second position, the second movable conducting member (6) is in the fourth position, the third movable conducting member (7) is in the sixth position, the first movable conducting member (5) disconnects the first positive electrode conducting member (1) and the second positive electrode conducting member (3), the second movable conducting member (6) disconnects the first negative electrode conducting member (2) and the second negative electrode conducting member (4), and the third movable conducting member (7) connects the first negative electrode conducting member (2) and the second positive electrode conducting member (3).

2. The switch of claim 1, wherein The actuating assembly comprises a bracket, and the first movable conducting member (5), the second movable conducting member (6), and the third movable conducting member (7) are all mounted on the bracket.

3. The switch of claim 2, wherein The actuating assembly further comprises an electromagnetic coil (9), an armature (11) cooperating with the electromagnetic coil (9), and a spring (10) used to drive the armature (11) to reset, and the armature (11) is connected with the bracket.

4. The switch of claim 2, wherein The bracket comprises a support arm (12) and a connecting rod (13) extending upward from the support arm (12), the first movable conducting member (5) and the second movable conducting member (6) are both mounted on the support arm (12), and the third movable conducting member (7) is mounted on an upper end of the connecting rod (13).

5. The switch of claim 1, wherein The first positive conductive piece (1) is provided with a first positive contact part (101), the first negative conductive piece (2) is provided with a first negative contact part (201), the second positive conductive piece (3) is provided with a second positive contact part (301), the second negative conductive piece (4) is provided with a second negative contact part (401), the first movable conductive piece (5) is provided with a first movable contact part (501) and a second movable contact part (502) which are in mutual conduction, the second movable conductive piece (6) is provided with a third movable contact part (601) and a fourth movable contact part (602) which are in mutual conduction, the third movable conductive piece (7) is provided with a fifth movable contact part (701) and a sixth movable contact part (702) which are in mutual conduction, the first movable contact part (501) is below the first positive contact part (101), the second movable contact part (502) is below the second positive contact part (301), the third movable contact part (601) is below the first negative contact part (201), the fourth movable contact part (602) is below the second negative contact part (401), the fifth movable contact part (701) is above the first negative contact part (201), and the sixth movable contact part (702) is above the second positive contact part (301).

6. The switch of claim 1, wherein The first positive conductive piece (1) is provided with a first positive contact part (101), the first negative conductive piece (2) is provided with a first negative contact part (201), the second positive conductive piece (3) is provided with a second positive contact part (301), the second negative conductive piece (4) is provided with a second negative contact part (401), the first movable conductive piece (5) is provided with a first movable contact part (501) and a second movable contact part (502) which are in mutual conduction, the second movable conductive piece (6) is provided with a third movable contact part (601) and a fourth movable contact part (602) which are in mutual conduction, the third movable conductive piece (7) is provided with a fifth movable contact part (701) and a sixth movable contact part (702) which are in mutual conduction, the first movable contact part (501) is below the first positive contact part (101), the second movable contact part (502) is below the second positive contact part (301), the third movable contact part (601) is below the first negative contact part (201), the fourth movable contact part (602) is below the second negative contact part (401), the fifth movable contact part (701) is above the first negative contact part (201), and the sixth movable contact part (702) is above the second positive contact part (301).

7. The switch of claim 1, wherein The first positive conductive piece (1) and the second positive conductive piece (3) are arranged on one side of the switch, and the first negative conductive piece (2) and the second negative conductive piece (4) are arranged on the other side of the switch.

8. The switch of claim 1, wherein The base (8) and the shell (14) are further included to enclose a cavity, and the actuating assembly, the first positive conductive piece (1), the first negative conductive piece (2), the second positive conductive piece (3), the second negative conductive piece (4), the first movable conductive piece (5), the second movable conductive piece (6), and the third movable conductive piece (7) are all installed in the cavity.

9. A voltage conversion circuit, characterized by, The switch of any one of claims 1-8 is included, a first power supply (15), and a second power supply (16), a positive electrode of the first power supply (15) is electrically connected with the first positive conductive piece (1), a negative electrode of the first power supply (15) is electrically connected with the first negative conductive piece (2), a positive electrode of the second power supply (16) is electrically connected with the second positive conductive piece (3), and a negative electrode of the second power supply (16) is electrically connected with the second negative conductive piece (4).

10. A vehicle characterized by comprising: The switch of any one of claims 1-8 is included.

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