CN211788693U

CN211788693U - Reciprocating speed reducer for switching current inside battery box

Info

Publication number: CN211788693U
Application number: CN202020926526.3U
Authority: CN
Inventors: 吴桐; 赵怡峰; 王春力; 李岩; 张立磊; 李明明; 王洋
Original assignee: Yantai Chungway New Energy Technology Co Ltd
Current assignee: Yantai Chungway New Energy Technology Co Ltd
Priority date: 2020-05-26
Filing date: 2020-05-26
Publication date: 2020-10-27
Anticipated expiration: 2030-05-26

Abstract

A reciprocating speed reducer for switching current in a battery box is characterized in that a driving motor is fixed on the side of a box body, a transmission worm is positioned in the box body, and the driving motor is connected with the transmission worm; the reversing limiting block is connected with the transmission worm; the first buffer component is connected to one side of the reversing limiting block, and the second buffer component is connected to the other side of the reversing limiting block; the first self-reset switch component is fixed on one side of the inner wall of the box body, and the second self-reset switch component is fixed on the other side of the inner wall of the box body. The transmission worm drives the reversing limiting block to drive the first buffer assembly to contact the first self-resetting switch assembly; the transmission worm drives the reversing limiting block to drive the second buffer assembly to contact the second self-reset switch assembly. According to the technical scheme, the compression stroke of the buffer assembly is utilized, so that the inertia of the transmission mechanism is reduced, the switch can be just opened by the force acting on the self-reset switch, the switch is prevented from being damaged by the inertia impact force of the reversing limiting block, and the function of reciprocating reversing in multiple frequencies can be realized.

Description

Reciprocating speed reducer for switching current inside battery box

Technical Field

The utility model relates to a battery box technical field, concretely relates to reciprocal decelerator for inside current switching of battery box.

Background

The battery box is an indispensable component of an electric vehicle power supply, and is generally formed by connecting a plurality of power supply modules in series. The performance and the service life of the battery box are key factors influencing the performance of the electric automobile, and the guarantee of the power utilization safety is very critical when the battery box is abnormal.

The motor is used as a power source of the electric automobile, and the forward and reverse actions of the motor can be changed by reversing the current of the motor. The circuit of the inside electric current switching of battery box itself belongs to prior art, and the control unit realizes the electric current switching function through acquireing input signal. The input control of the switching signal needs to rely on the existing self-reset switch, the current switching instruction input is realized through the state change of the self-reset switch, and the forward and reverse direction reversing of the motor is realized by changing the current direction of the motor. In the prior art, when the current in the battery box is switched, the switch is easily damaged under the influence of inertia impulse force of the reversing block, so that the frequency of the reciprocating reversing function is reduced, and the service life of the reset switch is influenced.

SUMMERY OF THE UTILITY MODEL

Therefore, the utility model provides a reciprocal decelerator for inside current switching of battery box solves driving motor reciprocating motion's switching-over problem to reduce drive mechanism's inertia, realize the reciprocal switching-over function of the high reliability of multifrequency.

In order to achieve the above object, the present invention provides the following technical solutions: a reciprocating speed reducer for switching current in a battery box comprises a box body, a driving motor, a transmission worm, a reversing limiting block, a first buffer assembly, a second buffer assembly, a first self-reset switch assembly and a second self-reset switch assembly; the driving motor is fixed on the side part of the box body, the transmission worm is positioned in the box body, and the driving motor is connected with the transmission worm; the reversing limiting block is connected with the transmission worm; the first buffer assembly is connected to one side of the reversing limiting block, and the second buffer assembly is connected to the other side of the reversing limiting block; the first self-resetting switch component is fixed on one side of the inner wall of the box body, and the second self-resetting switch component is fixed on the other side of the inner wall of the box body;

the transmission worm drives the reversing limiting block to drive the first buffer assembly to contact the first self-resetting switch assembly; the transmission worm drives the reversing limiting block to drive the second buffer assembly to contact the second self-reset switch assembly.

The ECU controller is electrically connected with the first self-reset switch assembly and the second self-reset switch assembly respectively by communication lines.

As a preferable scheme of the reciprocating speed reducer for switching the current in the battery box, a bearing is arranged at the connecting position of the transmission worm and the box body.

As a preferable scheme of the reciprocating speed reducer for switching the current in the battery box, a guide rod is connected to the inside of the box body through a fixed block, and the guide rod penetrates through the upper part of the reversing limiting block.

As a preferable scheme of the reciprocating speed reduction device for switching the current in the battery box, the first buffer assembly and the second buffer assembly respectively comprise a plunger shell, a ball plunger and a buffer spring; the buffer spring is positioned in the plunger shell, and one end of the ball plunger is clamped into the plunger shell and is in contact with the buffer spring.

As a preferable scheme of the reciprocating speed reduction device for switching the current inside the battery box, the first self-resetting switch assembly and the second self-resetting switch assembly each comprise a self-resetting switch, a circuit board and a connector; the self-reset switch is fixed on the circuit board and electrically connected with the ECU controller through the connector.

The driving motor of the utility model is fixed on the side part of the box body, the transmission worm is positioned inside the box body, and the driving motor is connected with the transmission worm; the reversing limiting block is connected with the transmission worm; the first buffer component is connected to one side of the reversing limiting block, and the second buffer component is connected to the other side of the reversing limiting block; the first self-reset switch component is fixed on one side of the inner wall of the box body, and the second self-reset switch component is fixed on the other side of the inner wall of the box body. The transmission worm drives the reversing limiting block to drive the first buffer assembly to contact the first self-resetting switch assembly; the transmission worm drives the reversing limiting block to drive the second buffer assembly to contact the second self-reset switch assembly. According to the technical scheme, the compression stroke of the buffering assembly is reduced, so that the inertia of the transmission mechanism is reduced, the switch can be just opened by the force acting on the self-reset switch, the switch is prevented from being damaged by the inertia impact force of the reversing limiting block, the reciprocating reversing function of multiple frequencies can be realized, the reversing function of the limiting block is well solved, and the service life of the self-reset switch is prolonged.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. It should be apparent that the drawings in the following description are merely exemplary, and that other embodiments can be derived from the drawings provided by those of ordinary skill in the art without inventive effort.

The structure, ratio, size and the like shown in the present specification are only used for matching with the content disclosed in the specification, so as to be known and read by people familiar with the technology, and are not used for limiting the limit conditions which can be implemented by the present invention, so that the present invention has no technical essential significance, and any structure modification, ratio relationship change or size adjustment should still fall within the scope which can be covered by the technical content disclosed by the present invention without affecting the efficacy and the achievable purpose of the present invention.

Fig. 1 is a schematic structural diagram of a reciprocating speed reducer for switching current inside a battery box according to the present invention;

fig. 2 is a schematic diagram illustrating a principle of a reciprocating speed reducer for switching current inside a battery box according to the present invention;

fig. 3 is a schematic structural view of a buffer assembly provided in the present invention;

fig. 4 is a schematic structural view of a self-resetting switch assembly provided in the present invention.

In the figure: 1. a box body; 2. a drive motor; 3. a drive worm; 4. a reversing limiting block; 5. a first buffer assembly; 6. a second buffer assembly; 7. a first self-resetting switch assembly; 8. a second self-resetting switch assembly; 9. an ECU controller; 10. a bearing; 11. a guide bar; 12. a plunger housing; 13. a ball plunger; 14. a buffer spring; 15. a self-reset switch; 16. a circuit board; 17. a connector is provided.

Detailed Description

The present invention is described in terms of specific embodiments, and other advantages and benefits of the present invention will become apparent to those skilled in the art from the following disclosure. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1 and 2, a reciprocating speed reducer for switching current inside a battery box is provided, which comprises a box body 1, a driving motor 2, a transmission worm 3, a reversing limiting block 4, a first buffer assembly 5, a second buffer assembly 6, a first self-resetting switch assembly 7 and a second self-resetting switch assembly 8; the driving motor 2 is fixed on the side part of the box body 1, the transmission worm 3 is positioned in the box body 1, and the driving motor 2 is connected with the transmission worm 3; the reversing limiting block 4 is connected with the transmission worm 3; the first buffer component 5 is connected to one side of the reversing limiting block 4, and the second buffer component 6 is connected to the other side of the reversing limiting block 4; the first self-resetting switch component 7 is fixed on one side of the inner wall of the box body 1, and the second self-resetting switch component 8 is fixed on the other side of the inner wall of the box body 1;

the transmission worm 3 drives the reversing limiting block 4 to drive the first buffer component 5 to contact the first self-resetting switch component 7; the transmission worm 3 drives the reversing limiting block 4 to drive the second buffer assembly 6 to contact the second self-resetting switch assembly 8.

Specifically, the device further comprises an ECU controller 9, and the ECU controller 9 is electrically connected with the first self-resetting switch assembly 7 and the second self-resetting switch assembly 8 by communication lines. The buffer component contacts the self-reset switch component to generate a signal needing reversing, the signal is transmitted to the ECU controller 9, the ECU controller 9 controls the reversing control circuit of the driving motor 2 to act, the driving motor 2 is driven to run in the opposite direction, and the reciprocating motion of the driving motor 2 is realized.

In one embodiment of the reciprocating speed reducer for switching the current inside the battery box, a bearing 10 is arranged at the connecting position of the transmission worm 3 and the box body 1. The bearing 10 realizes the support of the junction of the transmission worm 3 and the box body 1, the operation of the transmission worm 3 drives the reversing limiting block 4 to move, and then the reversing limiting block 4 drives the first buffer component 5 and the second buffer component 6 to move.

In an embodiment of the reciprocating speed reducer for switching the current inside the battery box, a guide rod 11 is connected inside the box body 1 through a fixed block, and the guide rod 11 penetrates through the upper part of the reversing limiting block 4. The guide rod 11 ensures the stability of the movement of the reversing limiting block 4, so that the first buffer component 5 can accurately trigger the first self-reset switch component 7, and meanwhile, the second buffer component 6 can also accurately trigger the second self-reset switch component 8.

Referring to fig. 3, in an embodiment of the reciprocating speed reducer for current switching inside the battery box, the first buffer assembly 5 and the second buffer assembly 6 each include a plunger housing 12, a ball plunger 13 and a buffer spring 14; the buffer spring 14 is located inside the plunger housing 12, and one end of the ball plunger 13 is clamped into the plunger housing 12 and contacts with the buffer spring 14. Through the compression stroke of the buffer spring 14 and the ball plunger 13, the inertia of the transmission worm 3 is reduced, the acting force is ensured to be just right capable of opening the self-reset switch 15, the switch is prevented from being damaged by the inertia impact force of the reversing limiting block 4, the multi-frequency reciprocating reversing function is realized, and the reversing function of the reversing limiting block 4 is well solved.

Referring to fig. 4, in one embodiment of the reciprocating decelerator for current switching inside the battery box, the first self-resetting switch assembly 7 and the second self-resetting switch assembly 8 each include a self-resetting switch 15, a circuit board 16 and a connector 17; the self-reset switch 15 is fixed to the circuit board 16, and the self-reset switch 15 is electrically connected to the ECU controller 9 through the connector 17. The reliability of the product is improved by the combination of the self-reset switch 15 and the connector 17.

Specifically, the self-reset switch 15 belongs to the prior art and generally comprises a bottom shell and a button. A contact pin and a support pin are fixed on the bottom shell, a static contact is fixed on the contact pin, a movable contact corresponding to the static contact is fixed at the end part of the metal elastic wane, and the support pin is used as a supporting point; the steel ball at the bottom of the spring seat below the button is pressed against the metal elastic warped plate, so that the metal elastic warped plate rotates around the supporting point to open and close the movable contact and the static contact, and the warped end of the metal elastic warped plate is provided with a reset mechanism consisting of a reset bracket and a reset spring.

The principle of the technical scheme is that the self-reset switch assembly is preset before the driving motor 2 is locked to rotate to detect that the direction stroke of the driving motor 2 is in place and needs to be operated in a reversing mode. The stroke in-place signal is detected by the buffer component touching the self-reset switches 15 arranged at the two ends of the stroke, and when the buffer component runs to the end of the stroke in the direction, the self-reset switches 15 arranged at the end of the stroke in the direction are closed to generate a signal needing to be reversed; the signal is transmitted to an ECU controller 9, the ECU controller 9 controls a reversing control circuit of a driving motor 2 to act, when the ECU controller 9 receives an instruction, the driving motor 2 is started to rotate, a transmission worm 3 rotates to drive a limiting reversing block to move back and forth, when the driving worm moves to two ends, a buffer spring 14 touches a self-reset switch 15, the self-reset switch 15 generates a current signal and transmits the current signal to the ECU controller 9, and the ECU controller 9 receives the signal to send a reversing instruction of the driving motor 2, so that the driving motor 2 is enabled to perform reversing rotation, and the reciprocating motion effect is achieved. The driving motor 2 of the utility model is fixed on the side part of the box body 1, the transmission worm 3 is positioned inside the box body 1, and the driving motor 2 is connected with the transmission worm 3; the reversing limiting block 4 is connected with the transmission worm 3; the first buffer component 5 is connected to one side of the reversing limiting block 4, and the second buffer component 6 is connected to the other side of the reversing limiting block 4; the first self-reset switch component 7 is fixed on one side of the inner wall of the box body 1, and the second self-reset switch component 8 is fixed on the other side of the inner wall of the box body 1. The transmission worm 3 drives the reversing limiting block 4 to drive the first buffer component 5 to contact the first self-resetting switch component 7; the transmission worm 3 drives the reversing limiting block 4 to drive the second buffer assembly 6 to contact the second self-reset switch assembly 8. According to the technical scheme, the compression stroke of the buffering assembly is reduced, so that the inertia of the transmission mechanism is reduced, the force acting on the self-reset switch 15 is guaranteed to just open the switch, the switch is prevented from being damaged by the inertia impact force of the reversing limiting block 4, the reciprocating reversing function of multiple frequencies can be realized, the reversing function of the limiting block is well solved, and the service life of the self-reset switch 15 is prolonged.

Although the invention has been described in detail with respect to the general description and the specific embodiments, it will be apparent to those skilled in the art that modifications and improvements can be made based on the invention. Therefore, such modifications and improvements are intended to be within the scope of the invention as claimed.

Claims

1. A reciprocating speed reducer for switching current inside a battery box is characterized by comprising a box body (1), a driving motor (2), a transmission worm (3), a reversing limiting block (4), a first buffer assembly (5), a second buffer assembly (6), a first self-reset switch assembly (7) and a second self-reset switch assembly (8); the driving motor (2) is fixed on the side part of the box body (1), the transmission worm (3) is positioned in the box body (1), and the driving motor (2) is connected with the transmission worm (3); the reversing limiting block (4) is connected with the transmission worm (3); the first buffer component (5) is connected to one side of the reversing limiting block (4), and the second buffer component (6) is connected to the other side of the reversing limiting block (4); the first self-reset switch component (7) is fixed on one side of the inner wall of the box body (1), and the second self-reset switch component (8) is fixed on the other side of the inner wall of the box body (1);

the transmission worm (3) drives the reversing limiting block (4) to drive the first buffer assembly (5) to contact the first self-reset switch assembly (7); the transmission worm (3) drives the reversing limiting block (4) to drive the second buffer assembly (6) to contact the second self-reset switch assembly (8).

2. The reciprocating decelerator for switching current inside a battery box according to claim 1, further comprising an ECU controller (9), the ECU controller (9) being electrically connected to the first self-resetting switch assembly (7) and the second self-resetting switch assembly (8) using communication lines, respectively.

3. A reciprocating decelerator for switching current inside a battery box as claimed in claim 1, wherein the connecting position of the driving worm (3) and the box body (1) is provided with a bearing (10).

4. The reciprocating speed reducer for switching the current inside the battery box according to claim 1, wherein a guide rod (11) is connected inside the box body (1) through a fixed block, and the guide rod (11) penetrates through the upper part of the reversing limiting block (4).

5. A reciprocating deceleration device for current switching inside a battery box according to claim 1, characterized in that said first and second damping assemblies (5, 6) each comprise a plunger housing (12), a ball plunger (13) and a damping spring (14); buffer spring (14) are located plunger casing (12) inside, bulb plunger (13) one end is gone into plunger casing (12) and with buffer spring (14) contact.

6. A reciprocating decelerator for switching current inside a battery box according to claim 2, wherein the first self-resetting switch assembly (7) and the second self-resetting switch assembly (8) each include a self-resetting switch (15), a circuit board (16), and a connector (17); the self-reset switch (15) is fixed on the circuit board (16), and the self-reset switch (15) is electrically connected with the ECU controller (9) through the connector (17).