An electromagnetic brake system

Abstract

The present invention discloses an electromagnetic brake system, comprising: an electromagnetic brake switch, a controller and a motor, wherein the controller is coupled to the electromagnetic brake switch and the motor respectively; wherein the electromagnetic brake switch comprises: a housing, which defines a receiving cavity inside; a pull rod assembly, which can be stretched and installed in the receiving cavity and at least partially extends out of the housing; wherein a magnet is arranged on the pull rod assembly; a brake power-off switch, which is coupled to the controller and arranged close to the pull rod assembly, and can move between an open position of opening the brake power-off switch and a closed position of closing the brake power-off switch under the action of the pull rod assembly; a Hall sensor, which is coupled to the controller and arranged close to the magnet, and is used to sense the change in the magnetic field of the magnet accompanying the movement of the pull rod assembly and form a brake torque signal. The electromagnetic brake system can increase the brake torque and play a role in auxiliary braking.

Description

Technical Field

[0001] The invention relates to the field of braking equipment, and in particular to an electromagnetic braking system. Background Art

[0002] Electric tricycles are popular among consumers for their simple structure, easy operation, low operating cost, simple maintenance and pollution-free features, and have broad market prospects. In the brake system currently used in electric tricycles, the electromagnetic brake switch is in a normally off or normally on state under the action of external force (for example, pedaling), and only plays the role of turning the motor power on and off; moreover, due to the small braking torque of the mechanical brake, it cannot play a good braking role, which makes the vehicle have safety hazards during driving. Summary of the invention

[0003] In response to the problems and needs raised above, this solution proposes an electromagnetic brake switch, which can achieve the above technical objectives and bring about many other technical effects by adopting the following technical features.

[0004] The present invention provides an electromagnetic braking system, comprising:

[0005] An electromagnetic brake switch, a controller and a motor, wherein the controller is coupled to the electromagnetic brake switch and the motor respectively;

[0006] Wherein, the electromagnetic brake switch comprises:

[0007] A housing defines a receiving cavity therein;

[0008] A pull rod assembly is stretchably mounted in the accommodating cavity and at least partially extends out of the housing; wherein a magnet is disposed on the pull rod assembly;

[0009] A brake power-off switch is disposed near the pull rod assembly and can move between an on position for turning on the brake power-off switch and a off position for turning off the brake power-off switch under the action of the pull rod assembly;

[0010] A Hall sensor is disposed near the magnet and coupled to the controller, and is used to sense the change in the magnetic field of the magnet accompanying the movement of the pull rod assembly and form a braking torque signal of corresponding magnitude;

[0011] Among them, when the pull rod assembly extends out of the accommodating cavity and moves to a specified position, the brake power-off switch is in a closed position and generates a brake signal, and the controller outputs a brake torque signal to the motor; when the pull rod assembly retracts in the accommodating cavity and moves to a specified position, the brake power-off switch is in an open position.

[0012] In this technical solution, the rod assembly performs telescopic movement under the action of external force. When the rod assembly extends out of the accommodating cavity and moves to a specified position, the brake power-off switch is in the closed position and generates a brake signal. The controller controls the motor to stop rotating. At the same time, the controller outputs a torque signal to the motor according to the change in the movement of the rod assembly measured by the Hall sensor, and controls the motor to generate electromagnetic braking force, thereby achieving the effect of motor braking. Moreover, the electric energy generated during electromagnetic braking can be recharged to the battery, which plays the role of energy recovery and increases the vehicle's cruising range. When the rod assembly shrinks in the accommodating cavity and moves to a specified position, the brake power-off switch is in the open position. At this time, the brake power-off switch is turned on, and the controller controls the motor to continue rotating. This electromagnetic braking system can increase the braking torque, improve the performance of the brake, play the role of auxiliary braking, improve braking safety, recover energy, increase the vehicle's cruising range, and has a simple structure, reliability, and convenient manufacturing.

[0013] In addition, the electromagnetic brake system according to the present invention may also have the following technical features:

[0014] In one example of the present invention, the tie rod assembly comprises:

[0015] A pull rod body, telescopically matched and connected with the accommodating cavity;

[0016] The first elastic body is at least connected to the pull rod body and enables the pull rod body to have a tendency to restore to an initial position under the drive of an external force.

[0017] In one example of the present invention, the tie rod assembly further includes:

[0018] The first insulating tube body is sleeved on the outer side of the pull rod body, and one end of the second elastic body is connected to the pull rod body, and the other end of the second elastic body is connected to the first insulating tube body.

[0019] In one example of the present invention, the tie rod assembly further includes:

[0020] The baffle is fixedly connected to the pull rod body and at least part of it is arranged opposite to the insulating rod.

[0021] In one example of the present invention, the brake power-off switch comprises:

[0022] A connector, provided with a plug hole, coupled to a power source;

[0023] An insulating rod adapted to fit in the plug hole;

[0024] A second elastic body, one end of which is fixedly connected to the insulating rod, and the other end of which is coupled to the controller;

[0025] When the pull rod assembly extends out of the accommodating cavity and moves to a specified position, the insulating rod is separated from the pull rod assembly, so that the second elastic body is coupled to the connecting body;

[0026] When the pull rod assembly is retracted in the accommodating cavity and moves to a specified position, the insulating rod abuts against the pull rod assembly, and the second elastic body is separated from the connecting body.

[0027] In one example of the present invention, the connector is a U-shaped groove structure, the plug hole is arranged at the bottom of the U-shaped groove, and the insulating rod adapted to the plug hole can reciprocate along the groove depth direction.

[0028] In one example of the present invention, it further includes: a conductive blocker,

[0029] It is fixedly connected between the second elastic body and the insulating rod, and the outer contour size of the conductive stopper is larger than the inner diameter size of the plug-in hole.

[0030] In one example of the present invention, the present invention further includes: a second insulating tube body,

[0031] The connecting body is fixedly connected to the second insulating tube body, so that the insulating rod is arranged along the axial direction of the second insulating tube body;

[0032] The second elastic body penetrates through one end of the second insulating tube body, and the insulating rod extends out from the other end of the second insulating tube body.

[0033] In one example of the present invention, the housing comprises:

[0034] A front shell and a rear shell are arranged opposite to each other and are detachably connected, and the front shell and the rear shell together define the accommodating cavity;

[0035] Wherein, a plurality of slots are arranged in the accommodating cavity, and the pull rod assembly, the brake power-off switch, and the Hall sensor are suitable for being snapped into the slots.

[0036] In one example of the present invention, a plurality of first half card slots are provided on the front shell, and a plurality of second half card slots are provided on the rear shell; when the front shell and the rear shell are connected to each other, the first half card slots and the second half card slots opposite thereto jointly define the card slot.

[0037] The best embodiment for carrying out the present invention will be described in more detail below with reference to the accompanying drawings so that the features and advantages of the present invention can be easily understood. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings of the embodiments of the present invention, wherein the drawings are only used to illustrate some embodiments of the present invention, but not to limit all embodiments of the present invention thereto.

[0039] Figure 1 A schematic diagram of the structure of an electromagnetic brake system according to an embodiment of the present invention;

[0040] Figure 2 is a front view of an electromagnetic brake switch according to an embodiment of the present invention;

[0041] Figure 3 1. It is a front view of an electromagnetic brake switch according to an embodiment of the present invention (with the front shell hidden);

[0042] Figure 4 An exploded view of an electromagnetic brake switch according to an embodiment of the present invention;

[0043] Figure 5 Schematic diagram of the structure of the brake power-off switch according to an embodiment of the present invention (closed position);

[0044] Figure 6 Schematic diagram of the structure of a brake power-off switch according to an embodiment of the present invention (open position).

[0045] List of reference numerals:

[0046] Electromagnetic brake system 1000;

[0047] Motor 300;

[0048] Controller 200;

[0049] Electromagnetic brake switch 100;

[0050] Housing 10;

[0051] Front shell 11;

[0052] rear shell 12;

[0053] Fastener 13;

[0054] The second half slot 14;

[0055] Accommodating chamber 10A;

[0056] Tie rod assembly 20;

[0057] Tie rod body 21;

[0058] A first elastic body 22;

[0059] A first insulating tube body 23;

[0060] Baffle 24;

[0061] Magnet 25;

[0062] Brake power off switch 30;

[0063] Connector 31;

[0064] Plug hole 311;

[0065] Insulating rod 32;

[0066] A second elastic body 33;

[0067] Conductive block 34;

[0068] A second insulating tube 35;

[0069] Hall sensor 40. DETAILED DESCRIPTION

[0070] In order to make the purpose, technical solution and advantages of the technical solution of the present invention clearer, the technical solution of the embodiment of the present invention will be clearly and completely described in conjunction with the drawings of specific embodiments of the present invention. The same figure marks in the drawings represent the same parts. It should be noted that the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the described embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0071] Unless otherwise defined, the technical terms or scientific terms used herein shall have the usual meanings understood by persons of ordinary skill in the field to which the present invention belongs. The words "first", "second" and similar words used in the patent application specification and claims of the present invention do not indicate any order, quantity or importance, but are only used to distinguish different components. Similarly, words such as "one" or "one" do not necessarily indicate a quantity limitation. Words such as "include" or "comprise" mean that the elements or objects appearing before the word include the elements or objects listed after the word and their equivalents, without excluding other elements or objects. Words such as "connect" or "connected" are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0072] According to an electromagnetic brake system 1000 of the present invention, Figures 1 to 6 As shown, including:

[0073] An electromagnetic brake switch 100, a controller 200 and a motor 300, wherein the controller 200 is coupled to the electromagnetic brake switch 100 and the motor 300 respectively;

[0074] Wherein, the electromagnetic brake switch 100 comprises:

[0075] The housing 10 defines a receiving chamber 10A therein;

[0076] The pull rod assembly 20 is stretchably installed in the accommodating cavity 10A and at least partially extends out of the housing 10; wherein the pull rod assembly 20 is provided with a magnet 25;

[0077] The brake power-off switch 30 is arranged near the pull rod assembly 20 and can move between an open position of turning on the brake power-off switch 30 and a closed position of turning off the brake power-off switch 30 under the action of the pull rod assembly 20;

[0078] The Hall sensor 40 is arranged close to the magnet 25 and coupled to the controller 200, and is used to sense the change in the magnetic field of the magnet 25 accompanying the movement of the pull rod assembly 20 and form a braking torque signal of corresponding magnitude; that is, the Hall sensor 40 is used to linearly measure the movement stroke of the pull rod assembly 20 and convert it into a corresponding braking torque signal; that is, the Hall sensor 40 converts the movement stroke of the pull rod assembly 20 into a braking torque signal of corresponding magnitude.

[0079] When the rod assembly 20 extends out of the accommodating cavity 10A and moves to a specified position, the brake power-off switch 30 is in a closed position and generates a brake signal, and the controller 200 outputs a torque signal to the motor 300 according to the change in the movement of the rod assembly 20 measured by the Hall sensor 40; when the rod assembly 20 retracts in the accommodating cavity 10A and moves to a specified position, the brake power-off switch 30 is in an open position;

[0080] Under the action of external force, the pull rod assembly 20 performs telescopic movement. When the pull rod assembly 20 extends out of the accommodating cavity 10A and moves to a specified position, the brake power-off switch 30 is in a closed position and generates a brake signal. The controller 200 stops the rotation of the motor 300. At the same time, the controller 200 outputs a torque signal to the motor 300 according to the change in the movement of the pull rod assembly 20 measured by the Hall sensor 40, and controls the motor 300 to generate an electromagnetic braking force, thereby achieving the effect of motor braking. In addition, the electric energy generated during electromagnetic braking can be recharged to the battery, which plays a role in energy recovery and increases the vehicle's cruising range. When the pull rod assembly 20 retracts in the accommodating cavity 10A and moves to a specified position, the brake power-off switch 30 is in an open position. At this time, the brake power-off switch 30 is turned on, and the controller 200 controls the motor 300 to continue rotating. The electromagnetic brake system 1000 can increase the braking torque, improve the performance of the brake, play a role in auxiliary braking, improve braking safety, recover energy, and increase the vehicle's cruising range. It also has a simple structure, high reliability, and is easy to manufacture.

[0081] The controller 200 controls the magnitude of the electromagnetic braking force generated by the motor according to the strength of the braking torque signal. The braking torque signal voltage is proportional to the electromagnetic braking force. The deeper the brake pedal is, the greater the electromagnetic braking force will be. At the same time, the electromagnetic braking force is proportional to the vehicle speed. The higher the speed, the stronger the braking force.

[0082] When the drive motor brakes, the controller 200 controls it to be converted into a permanent magnet synchronous generator, and uses the inertia of the vehicle to transmit it to the motor rotor through the power system. The controller makes it generate electricity and generate electromagnetic braking force at the same time, which plays a role in auxiliary braking. The motor controller plays the role of electromagnetic auxiliary braking when braking. At the same time, the electric energy generated by electromagnetic braking can be charged back to the battery, which plays a role in energy recovery and increases the cruising range of the electric vehicle.

[0083] The electromagnetic brake system 1000 can increase the braking torque, improve the braking performance, play the role of auxiliary braking, and improve braking safety. At the same time, the electric energy generated during electromagnetic braking can be recharged to the battery, playing the role of energy recovery, and increasing the cruising range of the electric vehicle. It has a simple structure, high reliability, and is easy to manufacture.

[0084] In one example of the present invention, the tie rod assembly 20 includes:

[0085] The pull rod body 21 is telescopically coupled to the accommodating cavity 10A;

[0086] The first elastic body 22 is at least connected to the pull rod body 21, and enables the pull rod body 21 to have a tendency to return to an initial position under the drive of an external force;

[0087] That is to say, the pull rod body 21 extends out of the shell 10 under the action of external force, and in this process it squeezes the first elastomer 22 and generates elastic force; when the external force is released, the pull rod body 21 returns to its original position under the action of the elastic force of the first elastomer 22. By connecting the first elastomer 22 to the pull rod body 21, the pull rod body 21 can return to its original position, which facilitates repeated operation of the pull rod assembly 20.

[0088] In one example of the present invention, the tie rod assembly 20 further includes:

[0089] A first insulating tube body 23 is sleeved on the outside of the pull rod body 21, and one end of the first elastic body 22 is connected to the pull rod body 21, and the other end thereof is connected to the first insulating tube body 23;

[0090] Specifically, the first insulating tube body 23 is connected in the accommodating cavity 10A, and the first elastic body 22 can be a tension spring, which is sleeved on the pull rod body 21, and one of its pins is fixedly connected to the pull rod body 21, and the other pin is fixedly connected to the first insulating tube body 23, so that when the pull rod body 21 extends, the tension spring is squeezed and the first elastic body 22 generates an elastic force to restore the pull rod body 21 to its initial position. After the external force is released, the pull rod body 21 returns to its initial position. It is worth noting that the first elastic body 22 can also be a spring.

[0091] In one example of the present invention, the tie rod assembly 20 further includes:

[0092] a baffle 24, which is fixedly connected to the pull rod body 21, and at least part of which is arranged opposite to the insulating rod 32;

[0093] The baffle plate 24 can be provided to increase the effective contact area of ​​the pull rod body 21 , thereby facilitating the blocking and releasing of the insulating rod 32 ; preferably, the baffle plate 24 is provided perpendicular to the pull rod body 21 .

[0094] In one example of the present invention, the brake power-off switch 30 comprises:

[0095] The connector 31 is provided with a plug hole 311 and is coupled to a power source;

[0096] An insulating rod 32 adapted to fit in the plug hole 311;

[0097] A second elastic body 33, one end of which is fixedly connected to the insulating rod 32, and the other end of which is coupled to the controller 200;

[0098] When the pull rod assembly 20 extends out of the accommodating cavity 10A and moves to a specified position, the insulating rod 32 is separated from the pull rod assembly 20, and the insulating rod 32 moves along the plug hole 311 under the action of the second elastic body 33 so that the second elastic body 33 is coupled with the connecting body 31;

[0099] When the pull rod assembly 20 is retracted in the accommodating cavity 10A and moves to a specified position, the insulating rod 32 abuts against the pull rod assembly 20, and the insulating rod 32 moves along the plug hole 311 so that the second elastic body 33 is separated from the connecting body 31;

[0100] For example, the second elastic body 33 is a compression spring, and the connector 31 and the compression spring are both conductors. When the pull rod assembly 20 extends out of the accommodating cavity 10A and moves to a specified position, the insulating rod 32 extends under the action of the compression spring and separates from the pull rod assembly 20. The insulating rod 32 moves along the plug hole 311 so that the second elastic body 33 is coupled to the connector 31. At this time, the brake power-off switch 30 is in the closed position and inputs a brake signal to the controller 200, and the controller 200 controls the motor 300 coupled thereto to stop working;

[0101] When the pull rod assembly 20 retracts in the accommodating cavity 10A and moves to a specified position, the insulating rod 32 abuts against the pull rod assembly 20, and the insulating rod 32 moves along the plug hole 311 to separate the second elastic body 33 from the connecting body 31. At this time, the brake power-off switch 30 is turned on, and the controller controls the motor 300 to continue working.

[0102] In one example of the present invention, the connector 31 is a U-shaped groove structure, the plug hole 311 is arranged at the bottom of the U-shaped groove, and the insulating rod 32 adapted to the plug hole 311 can reciprocate along the groove depth direction;

[0103] That is to say, the insulating rod 32 can move in the U-shaped groove, and the direction of movement is parallel to the side wall of the U-shaped groove structure, so that the second elastic body 33 can avoid contact with the connecting body 31 during the movement of the insulating rod 32, and the second elastic body 33 is coupled with the connecting body 31 after moving to the bottom of the U-shaped groove;

[0104] The U-shaped groove can facilitate the connection and separation between the second elastic body 33 and the connecting body 31 , thereby ensuring the reliability of the connection and separation between the second elastic body 33 and the connecting body 31 .

[0105] In one example of the present invention, it further includes: a conductive block 34,

[0106] It is fixedly connected between the second elastic body 33 and the insulating rod 32, and the outer contour size of the conductive block 34 is larger than the inner diameter size of the plug hole 311;

[0107] By setting a conductive stopper 34, when the second elastic body 33 moves to the bottom of the U-shaped groove, it can stop the second elastic body 33 from continuing to move, thereby playing a role of limiting and protecting the second elastic body 33 to avoid excessive stretching, and at the same time will not affect the electrical connection between the second elastic body 33 and the connecting body 31.

[0108] In one example of the present invention, it further includes: a second insulating tube body 35,

[0109] The connecting body 31 is fixedly connected in the second insulating tube body 35, so that the insulating rod 32 is arranged along the axial direction of the second insulating tube body 35;

[0110] The second elastic body 33 is inserted into one end of the second insulating tube 35 and connected to the insulating rod 32, and the insulating rod 32 is extended from the other end of the second insulating tube 35;

[0111] The second insulating tube body 35 can protect the connecting body 31 , the second elastic body 33 and the insulating rod 32 , thereby preventing the brake power-off switch 30 from leaking electricity.

[0112] In one example of the present invention, the housing 10 includes:

[0113] A front shell 11 and a rear shell 12 are disposed opposite to each other and are detachably connected, and the front shell 11 and the rear shell 12 together define the accommodating chamber 10A;

[0114] The accommodating cavity 10A is provided with a plurality of slots, and the pull rod assembly 20, the brake power-off switch 30, and the Hall sensor 40 are suitable for being snapped into the slots;

[0115] The front shell 11 and the rear shell 12 are detachably connected by a fastener 13. A plurality of first connecting holes are arranged on the front shell 11. Correspondingly, a plurality of second connecting holes corresponding to the first connecting holes are arranged on the rear shell 12. The fastener 13 passes through the front shell 11 and the rear shell 12 in sequence. This connection method is easy to assemble and disassemble and has high reliability.

[0116] The housing 10 is detachably connected by the front shell 11 and the rear shell 12 to form a receiving chamber 10A, which is convenient for assembling and installing other components; the provision of a card slot can facilitate the disassembly and assembly between the pull rod assembly 20, the brake power-off switch 30, the Hall sensor 40 and the receiving chamber 10A.

[0117] In an example of the present invention, the front shell 11 is provided with a plurality of first half card slots, and the rear shell 12 is provided with a plurality of second half card slots 14; when the front shell 11 and the rear shell 12 are connected to each other, the first half card slots and the second half card slots 14 opposite thereto jointly define the card slot;

[0118] By arranging the first half card slot and the second half card slot 14 on the front shell 11 and the rear shell 12 respectively, it is convenient to process and shape the card slot, for example, integrally process and shape the card slot by injection molding.

[0119] Unless otherwise defined, the technical terms or scientific terms used herein shall have the usual meanings understood by persons of ordinary skill in the field to which the present invention belongs. The words "first", "second" and similar words used in the patent application specification and claims of the present invention do not indicate any order, quantity or importance, but are only used to distinguish different components. Similarly, words such as "one" or "one" do not necessarily indicate a quantity limitation. Words such as "include" or "comprise" mean that the elements or objects appearing before the word include the elements or objects listed after the word and their equivalents, without excluding other elements or objects. Words such as "connect" or "connected" are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0120] The exemplary implementation of the electromagnetic braking system 1000 proposed in the present invention is described in detail above with reference to the preferred embodiments. However, those skilled in the art will appreciate that, without departing from the concept of the present invention, various modifications and variations may be made to the above-mentioned specific embodiments, and various technical features and structures proposed in the present invention may be combined in various ways without exceeding the protection scope of the present invention, which is determined by the appended claims.

Claims

1. An electromagnetic brake system, characterized in that: include: An electromagnetic brake switch (100), a controller (200) and a motor (300), wherein the controller (200) is coupled to the electromagnetic brake switch (100) and the motor (300) respectively; Wherein, the electromagnetic brake switch (100) comprises: A housing (10) defines a receiving chamber (10A) therein; A pull rod assembly (20) is stretchably installed in the accommodating cavity (10A) and at least partially extends out of the housing (10); wherein a magnet (25) is disposed on the pull rod assembly (20); A brake power-off switch (30) is arranged near the pull rod assembly (20) and can move between an open position for opening the brake power-off switch (30) and a closed position for closing the brake power-off switch (30) under the action of the pull rod assembly (20); A Hall sensor (40) is arranged near the magnet (25) and coupled to the controller (200), and is used to sense the change in the magnetic field of the magnet (25) accompanying the movement of the pull rod assembly (20) and form a braking torque signal of corresponding magnitude; When the pull rod assembly (20) extends out of the accommodating cavity (10A) and moves to a specified position, the brake power-off switch (30) is in a closed position and generates a brake signal, and at the same time, the controller (200) outputs a brake torque signal to the motor (300); when the pull rod assembly (20) retracts into the accommodating cavity (10A) and moves to a specified position, the brake power-off switch (30) is in an open position.

2. The electromagnetic brake system according to claim 1, characterized in that: The pull rod assembly (20) comprises: A pull rod body (21) is telescopically coupled to the accommodating cavity (10A); The first elastic body (22) is at least connected to the pull rod body (21), and enables the pull rod body (21) to have a tendency to restore to an initial position under the drive of an external force.

3. The electromagnetic brake system according to claim 2, characterized in that: The pull rod assembly (20) further comprises: The first insulating tube body (23) is sleeved on the outside of the pull rod body (21), and one end of the first elastic body (22) is connected to the pull rod body (21), and the other end thereof is connected to the first insulating tube body (23).

4. The electromagnetic brake system according to claim 2, characterized in that: The brake power-off switch (30) comprises: A connector (31) is provided with a plug hole (311) and is coupled to a power source; An insulating rod (32) adapted to fit in the plug hole (311); A second elastic body (33), one end of which is fixedly connected to the insulating rod (32) and the other end of which is coupled to the controller (200); When the pull rod assembly (20) extends out of the accommodating cavity (10A) and moves to a specified position, the insulating rod (32) is separated from the pull rod assembly (20), and the second elastic body (33) is coupled to the connecting body (31); When the pull rod assembly (20) retracts into the accommodating cavity (10A) and moves to a specified position, the insulating rod (32) abuts against the pull rod assembly (20), and the second elastic body (33) separates from the connecting body (31).

5. The electromagnetic brake system according to claim 4, characterized in that: The pull rod assembly (20) further comprises: A baffle (24) is fixedly connected to the pull rod body (21), and at least part of it is arranged opposite to the insulating rod (32).

6. The electromagnetic brake system according to claim 4, characterized in that: The connecting body (31) is a U-shaped groove structure, the plug hole (311) is arranged at the bottom of the U-shaped groove, and the insulating rod (32) adapted to the plug hole (311) can reciprocate along the groove depth direction.

7. The electromagnetic brake system according to claim 4, characterized in that: Also includes: A conductive stopper (34) is fixedly connected between the second elastic body (33) and the insulating rod (32), and the outer contour dimension of the conductive stopper (34) is larger than the inner diameter dimension of the plug hole (311).

8. The electromagnetic brake system according to claim 4, characterized in that: Also includes: A second insulating tube body (35), wherein the connecting body (31) is fixedly connected inside the second insulating tube body (35), so that the insulating rod (32) is arranged along the axial direction of the second insulating tube body (35); The second elastic body (33) penetrates from one end of the second insulating tube (35), and the insulating rod (32) extends from the other end of the second insulating tube (35).

9. The electromagnetic brake system according to claim 1, characterized in that: The housing (10) comprises: A front shell (11) and a rear shell (12) arranged opposite to each other and detachably connected, the front shell (11) and the rear shell (12) jointly defining the accommodating chamber (10A); Wherein, a plurality of slots are arranged in the accommodating cavity (10A), and the pull rod assembly (20), the brake power-off switch (30), and the Hall sensor (40) are suitable for being snapped into the slots.

10. The electromagnetic brake system according to claim 9, characterized in that: The front shell (11) is provided with a plurality of first half card slots, and the rear shell (12) is provided with a plurality of second half card slots. (14); when the front shell (11) and the rear shell (12) are connected to each other, the first half slot and the second half slot (14) opposite thereto jointly define the slot.

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