TW202321098A - Bicycle anti-lock braking device - Google Patents

Abstract

A bicycle anti-lock braking device is connected to a brake caliper. The bicycle anti-lock braking device includes a casing, a control circuit board, a light-emitting component, a light guide, a driving component, and a depressurizing component. The casing has a first space and a second space separated from each other. The control board is located in the second space, and the control board has a first surface located opposite to the first space. The light-emitting component is located at the first surface of the control circuit board. The light guide is disposed through the casing, a part of the light guide is exposed to outside from the casing, and another part of the light guide is located in the second space and corresponds to the light-emitting component. The driving component is located at the first space of the casing and is electrically connected to the control circuit board. The depressurizing component is located at the first space of the casing. The depressurizing component is configured to be driven by the driving component for depressurizing the brake caliper.

Description

Anti-lock brakes for bicycles

The invention relates to an anti-lock braking device, in particular to an anti-lock braking device for a bicycle.

In recent years, the bicycle market has been booming. Whether it is a high-end racing bicycle or a popular bicycle used as a means of transportation and entertainment, it is loved by consumers, prompting manufacturers to pay more attention to the user's demand for bicycle functions. Car body materials and equipment functions are continuously improved.

Taking the brakes of bicycles as an example, the bicycles have been equipped with anti-brake lock-up devices at present, so as to improve the braking safety of bicycles. Generally speaking, the anti-brake lock-up device may not be able to properly drain the brake calipers due to unexpected conditions (such as high temperature, insufficient power supplied to it, or failure of the wheel speed sensor matched with it). pressure. However, the user is usually not aware of the aforementioned situation, and continues to ride the bicycle under the condition that the anti-brake locking device cannot operate normally.

The present invention is to provide an anti-lock brake device for a bicycle, which can remind the user that the anti-brake lock device is in a state that cannot operate normally.

An embodiment of the present invention discloses an anti-lock brake device for a bicycle, which is used for connecting with a brake caliper. The bicycle anti-lock braking device comprises a casing, a control circuit board, a light-emitting part, a light-guiding part, a driving part and a pressure-releasing part. The casing has a second space and a first space which are separated. The control circuit board is located in the second space of the casing, and the side of the control circuit board away from the first space has a first surface. The light emitting part is located on the first surface of the control circuit board. The light guide passes through the casing, one part of the light guide is exposed from the casing, and the other part of the light guide is located in the second space of the casing and corresponds to the light emitting element. The driver is located in the first space of the housing and is electrically connected to the control circuit board. The pressure relief part is located in the first space of the housing, and the pressure relief part is driven by the driving part to release pressure on the brake caliper.

According to the bicycle anti-lock braking device disclosed in the above-mentioned embodiment, the light guide part passes through the housing, one part of the light guide part is exposed from the housing, and the other part of the light guide part is located in the second space of the housing The inside corresponds to the luminous part, which can guide the warning light emitted by the luminous part to the outside through the light guide when the anti-lock brake device of the bicycle cannot release the pressure of the brake caliper due to unexpected conditions, so that the user can The user can know from the outside through the warning light that there is an abnormality in the current bicycle anti-lock brake device and other related components, and can immediately eliminate it, so as to prevent the user from continuing to ride when the bicycle anti-lock brake device cannot operate normally. bike.

The above description of the content of the present invention and the following description of the implementation are used to demonstrate and explain the principle of the present invention, and provide further explanation of the patent application scope of the present invention.

Please refer to FIGS. 1 to 5 . FIG. 1 is a perspective view of a bicycle anti-lock braking device and a brake caliper according to a first embodiment of the present invention. FIG. 2 is an exploded schematic diagram of FIG. 1 . FIG. 3 is an exploded schematic view from another perspective of FIG. 1 . FIG. 4 is a schematic cross-sectional view of FIG. 1 . FIG. 5 is an enlarged schematic cross-sectional view of FIG. 4 .

In this embodiment, the bicycle anti-lock brake device 1 is used to connect with a brake caliper (not shown). The bicycle anti-lock braking device 1 includes a housing 10 , a control circuit board 20 , a light emitting element 30 , a light guide element 40 , a pressure relief element 50 and a driving element 60 .

The housing 10 includes a first shell 11 , a second shell 12 and a third shell 13 . The first shell 11 has a first space 111 , an inner ring surface 112 and a thread structure 113 , the inner ring surface 112 is located in the first space 111 , and the thread structure 113 is located on the inner ring surface 112 . The second shell 12 includes a plate body 121 , a first annular side wall 122 and a second annular side wall 123 . The first annular side wall 122 and the second annular side wall 123 are respectively connected to two opposite surfaces of the plate body 121 . The first annular side wall 122 has a thread structure 1221, the thread structure 1221 of the first annular side wall 122 is screwed with the thread structure 113 of the first shell 11, so that the second shell 12 is fixed to the first shell 11. The third shell 13 is located on the side of the second annular side wall 123 of the second shell 12 away from the plate body 121, and the plate 121 of the second shell 12, the second annular side wall 123 and the third shell 13 are in common A second space 14 is formed.

In this embodiment, the second shell 12 further includes a guiding post 125 and an assembling post 126 . The guiding column 125 is located in the first space 111 , the guiding column 125 and the first annular side wall 122 are connected to the same surface of the plate body 121 , and the first annular side wall 122 surrounds the guiding column 125 . The assembly column 126 is located in the second space 14 , the assembly column 126 and the second annular side wall 123 are connected to the same surface of the plate body 121 , and the second annular side wall 123 surrounds the assembly column 126 . The control circuit board 20 is located in the second space 14 and is installed with an assembly column 126 . The control circuit board 20 has a first surface 21 and a second surface 22 . The first surface 21 faces away from the board body 121 , while the second surface 22 faces the board body 121 . That is to say, the first surface 21 of the control circuit board 20 is located on a side of the control circuit board 20 away from the first space 111 , and the second surface 22 is located on a side of the control circuit board 20 adjacent to the first space 111 . The light emitting element 30 is, for example, a light emitting diode. The light emitting element 30 is disposed on the first surface 21 of the control circuit board 20 and directly contacts the first surface 21 of the control circuit board 20 .

Next, please refer to FIGS. 6 to 8 together with FIGS. 2 to 5 . FIG. 6 is a schematic cross-sectional view of part of FIG. 1 . FIG. 7 is an exploded schematic diagram of the sensing module in FIG. 1 . FIG. 8 is a schematic cross-sectional view of the sensing module in FIG. 7 .

In this embodiment, the bicycle anti-lock braking device 1 further includes a sensing module 70 . The sensing module 70 is located in the second space 14 . The sensing module 70 includes a base 71 , a sensor 72 , a piston 73 , an elastic member 74 and a magnet 75 . The seat body 71 includes a main body portion 711 , an annular flange portion 712 and an annular wall portion 713 . The annular flange portion 712 is connected to the periphery of the main body portion 711 . The annular flange portion 712 has a first surface 7121 and a second surface 7122 opposite to each other. The annular wall portion 713 is connected to the first surface 7121 of the annular flange portion 712 . The first surface 7121 of the annular flange portion 712 abuts against the end of the second annular side wall 123 of the second shell 12 away from the plate body 121, and the annular wall portion 713 is inserted into the second annular side wall 123 and through a tight fit. It is fixed on the second annular side wall 123 .

The main body 711 of the base 71 of the sensing module 70 has a fluid channel 7111 . The fluid passage 7111 has a main oil passage 7112 and a bypass passage 7113 . The main oil passage 7112 has an oil inlet section 7114 and an extension section 7115 connected thereto. The oil inlet section 7114 communicates with the brake handle (not shown) through an oil pipe (not shown), for example. The bypass channel 7113 and the extension section 7115 communicate with opposite sides of the oil inlet section 7114 respectively and extend in the same direction. The end of the bypass channel 7113 away from the oil inlet section 7114 has an opening 71131 , and the end of the extension section 7115 away from the oil inlet section 7114 also has an opening 71151 . The two openings 71131 and 71151 are the structures left after the bypass channel 7113 and the extension section 7115 are formed. The sensing module 70 further includes two screws 76, 77, and the two screws 76, 77 are respectively installed in the two openings 71131, 71151 to close the two openings 71131, 71151.

The sensor 72 is, for example, a Hall sensor. The sensor 72 is disposed on the main body 711 and adjacent to the connection between the oil inlet section 7114 and the bypass channel 7113 , and the sensor 72 is electrically connected to the control circuit board 20 . Piston 73 is movably located within bypass channel 7113 . The piston 73 has a flange 731 . The elastic member 74 is located in the bypass channel 7113 , and its two opposite ends respectively abut against the screw 76 and the flange 731 of the piston 73 . The elastic member 74 is used for applying force to the piston 73 to move toward the direction of the oil inlet section 7114 . The magnet 75 is disposed at one end of the piston 73 adjacent to the oil inlet section 7114 .

In this embodiment, the bicycle anti-lock braking device 1 further includes a fixing member 80 . The third shell 13 has an end surface 132 , an outer ring surface 133 and two through holes 134 , 135 . Both the end surface 132 and the outer ring surface 133 face away from the second space 14 , and the two through holes 134 , 135 are connected to the second space 14 . The outer ring surface 133 is connected to the periphery of the end surface 132 , and the two through holes 134 , 135 are located on the end surface 132 . The third case 13 is against the second surface 7122 of the annular flange portion 712 of the seat 71 of the sensing module 70, and the different parts of the main body 711 of the seat 71 of the sensing module 70 are respectively located on the second Inside the space 14 and the through hole 134 . The fixing member 80 is, for example, a screw. The fixing part 80 is passed through the third case part 13 and locked into the main body part 711 , so that the third case part 13 is fixed on the main part 711 . Of course, the fixing member is not limited to being screws. In other embodiments, the fixing member may be a pin.

In this embodiment, the annular flange portion 712 of the base body 71 of the sensing module 70 also has a through hole 7123 communicating with the second space 14 . The perforation 7123 includes a wide-diameter section 71231 and a narrow-diameter section 71232 connected to each other. The width W1 of the wide-diameter section 71231 is greater than the width W2 of the narrow-diameter section 71232. The narrow-diameter section 71232 is closer to the control circuit board 20 than the wide-diameter section 71231. A supporting surface 71233 is formed between the diameter section 71231 and the narrow diameter section 71232 . The light guide 40 includes a wide portion 41 and a narrow portion 42 connected to each other. The outer diameter D1 of the wide portion 41 is larger than the outer diameter D2 of the narrow portion 42 . The wide portion 41 of the light guide 40 is passed through the through hole 135 of the third shell 13, and a part of the wide portion 41 of the light guide 40 is exposed from the end surface 132 of the third shell 13, while the other part is located on the second shell 13. In space 14. The part of the wide part 41 located in the second space 14 is inserted into the wide diameter section 71231 of the through hole 7123 and supported by the support surface 71233, the narrow part 42 is penetrated through the narrow diameter section 71232 of the through hole 7123, and the narrow part 42 is far away from the wide part One end of 41 leans against the light emitting element 30 . In this embodiment, the distance T from the supporting surface 71233 to the first surface 21 of the control circuit board 20 is greater than the axial length L of the narrow portion 42 of the light guide 40 .

In this embodiment, the wide portion 41 of the light guide 40 is fixed on the support surface 71233 through an adhesive layer 210, and the wide portion 41 and the narrow portion 42 of the light guide 40 are connected to the wide diameter section 71231 and the through hole 7123. The gap between the inner walls of the narrow-diameter section 71232 can also be filled with glue (not shown), so that the light guide 40 is fixed to the annular flange portion 712 of the base body 71 , but not limited thereto. In other embodiments, the steps of arranging the adhesive layer and filling the glue can be omitted, and the wide part of the light guide can directly abut against the supporting surface, and the light guide can be closely attached to the hole through the wide part and the narrow part. The inner wall surfaces of the wide-diameter section and the narrow-diameter section are fixed to the annular flange part of the seat body.

In addition, the light guide 40 is not limited to include a wide portion and a narrow portion with different outer diameters. In other embodiments, the light guide member can keep the same outer diameter in the long axis direction, and the perforation of the annular flange portion of the base body can correspondingly have no difference in width.

In this embodiment, the second case 12 has a sliding slot 127 , and different parts of the sliding slot 127 are respectively located on the assembly post 126 , the plate body 121 and the guiding post 125 of the second case part 12 . The chute 127 has a wide diameter portion 1271 and a narrow diameter portion 1272 connected thereto. The minimum width W3 of the wide diameter portion 1271 is greater than the width W4 of the narrow diameter portion 1272 . The wide diameter portion 1271 of the chute 127 is closer to the main body portion 711 of the base body 71 of the sensing module 70 than the narrow diameter portion 1272 .

The bicycle anti-lock braking device 1 may further include a connecting part 90 , a positioning part 100 , a valve part 110 and an elastic part 120 .

The two opposite ends of the connector 90 are installed in the assembly column 126 of the second housing 12 and the main body 711 of the seat body 71 of the sensing module 70 respectively, and the control circuit board 20 is clamped on a part of the assembly column 126 And part of the connector 90 between. The connector 90 has a fluid passage 91 and an assembly groove 92 , one end of the fluid passage 91 communicates with the extension section 7115 of the main oil passage 7112 of the base 71 , and the other end of the fluid passage 91 connects with the assembly groove 92 . The positioning member 100 is installed in the assembly groove 92 , and the positioning member 100 has a through hole 1001 . The fluid channel 91 communicates with the wide diameter portion 1271 of the slide groove 127 through the through hole 1001 .

The valve element 110 is movably located in the slide slot 127 of the second housing element 12 , and different parts thereof are respectively located in the wide diameter portion 1271 and the narrow diameter portion 1272 . The valve element 110 has a fluid passage 1101 and two bypass holes 1102 connected thereto. One end of the fluid passage 1101 communicates with the wide diameter portion 1271 of the sliding groove 127 through the bypass hole 1102 , and the end of the fluid passage 1101 away from the bypass hole 1102 directly communicates with the wide diameter portion 1271 of the sliding groove 127 . The fluid passage 91 of the connector 90, the perforation 1001 of the positioning member 100, the fluid passage 1101 of the valve member 110, the two bypass holes 1102 and the wide diameter portion 1271 of the chute 127 of the second shell member 12 jointly form an oil inlet passage 130 . The oil inlet passage 130 has a communication port 1301 connected to the narrow diameter portion 1272 of the slide groove 127 .

The movement of the valve member 110 can close or open the communication port 1301 of the oil inlet channel 130 . In detail, the valve element 110 includes a wide portion 1103 , a narrow portion 1104 and a sealing ring portion 1105 . The wide portion 1103 of the valve element 110 is connected to the narrow portion 1104 , and the width W5 of the wide portion 1103 of the valve element 110 is greater than the width W6 of the narrow portion 1104 . The sealing ring portion 1105 of the valve element 110 is sleeved on the narrow portion 1104 of the valve element 110 . The wide part 1103 of the valve element 110 is located at the wide diameter part 1271 of the chute 127, and the different parts of the narrow part 1104 are respectively the narrow diameter part 1272 of the wide diameter part 1271 of the chute 127, and the sealing ring part 1105 is located at the wide diameter part 127 of the chute 127. Diameter portion 1271. The fluid passage 1101 and the two bypass holes 1102 of the valve member 110 are located at the wide portion 1103 of the valve member 110 , and the sealing ring portion 1105 is closer to the communication port 1301 of the oil inlet passage 130 than the two bypass holes 1102 . The sealing ring portion 1105 of the sliding valve member 110 can block or open the communication port 1301 of the oil inlet passage 130 .

Two opposite ends of the elastic member 120 abut against the positioning member 100 and the wide portion 1103 of the valve member 110 respectively. The elastic member 120 is used for applying force to the valve member 110 to close the communication port 1301 of the oil inlet channel 130 .

It should be noted that one end of the elastic member 120 is not limited to abut against the positioning member 100 . In other embodiments, the anti-lock brake device for bicycles can omit the positioning part, and the elastic part can directly abut against the connecting part.

In this embodiment, the first space 111 of the first shell 11 has a first accommodating portion 1111 and a second accommodating portion 1112 connected thereto, and the first shell 11 also has an oil outlet channel 114 . The second accommodating portion 1112 is farther away from the second space 14 than the first accommodating portion 1111 , and the oil outlet passage 114 communicates with the second accommodating portion 1112 . The oil outlet channel 114 communicates with the brake caliper through an oil pipe (not shown), for example.

The guiding post 125 of the second shell 12 is located in the first accommodating portion 1111 of the first space 111 . The pressure relief member 50 includes a wide column portion 51 and a narrow column portion 52 . The wide column portion 51 is located in the first receiving portion 1111 of the first space 111 , and the wide column portion 51 has a guiding groove 511 , two through holes 512 , a slot 513 and an accommodating groove 514 connected thereto. The two through holes 512 and the slot 513 are located between the guide groove 511 and the receiving groove 514 , and the two through holes 512 are closer to the guide groove 511 than the slot 513 . The guide column 125 of the second housing part 12 is installed in the guide groove 511 of the wide column part 51 . The narrow column portion 52 includes an assembly portion 521 and an extension portion 522 connected to each other. The assembly part 521 of the narrow column part 52 is inserted into the slot 513 of the wide column part 51, and different parts of the extension part 522 of the narrow column part 52 are located in the accommodation groove 514 and the first accommodation part 1111 of the first space 111 respectively. and inside the second accommodating portion 1112 .

In this embodiment, the narrow column portion 52 has a fluid channel 523 , and the fluid channel 523 passes through the assembly portion 521 and the extension portion 522 . The two through holes 512 of the wide column portion 51 , the slot 513 and the fluid channel 523 of the narrow column portion 52 jointly form a connecting channel 140 . One end of the connection passage 140 communicates with the narrow diameter portion 1272 of the slide groove 127 of the second housing member 12 , and the other end of the connection passage 140 communicates with the oil outlet passage 114 through the second accommodating portion 1112 .

In this embodiment, a first chamber 150 is formed in the guide groove 511 between the narrow diameter portion 1272 of the chute 127 of the second shell 12 and the connecting passage 140, and the connection between the oil outlet passage 114 and the connecting passage 140 A second chamber 160 is formed in the second accommodating portion 1112 . Wherein, the width W7 of the first chamber 150 is the width W7 of the guide groove 511 of the wide column portion 51, the width W8 of the second chamber 160 is the width W8 of the second accommodating portion 1112, and the first chamber The width W7 of 150 is greater than the width W8 of the second chamber 160 .

In this embodiment, the bicycle anti-lock braking device 1 may further include another elastic member 170 . The elastic member 170 is sleeved on the extension portion 522 of the narrow column portion 52 , and different parts of the elastic member 170 are respectively located in the receiving groove 514 of the wide column portion 51 and the first receiving portion 1111 . Two opposite ends of the elastic member 170 abut against a flange 5221 of the extension portion 522 of the narrow column portion 52 and the first shell member 11 respectively. The elastic member 170 is used to apply force to the integral pressure relief member 50 to move toward the plate body 121 of the second shell member 12 .

The driving element 60 includes a bobbin 61 and an electromagnetic coil 62 . The bobbin 61 is located in the first accommodating portion 1111 of the first space 111 and sheathed on the wide column portion 51 of the pressure relief member 50 , and the electromagnetic coil 62 is wound on the bobbin 61 .

In this embodiment, the bicycle anti-lock brake device 1 further includes a magnetically conductive plate 180 . The magnetically conductive plate 180 is sleeved on the wide column portion 51 of the pressure relief member 50, and is located between the plate body 121 of the second shell member 12 and the bobbin 61, and the opposite surfaces of the magnetically conductive plate 180 are against the bobbin 61 and the second bobbin respectively. The first annular side wall 122 of the second housing part 12 .

In this embodiment, the first shell 11 is, for example, a magnetically permeable material. When the electromagnetic coil 62 is energized, the electromagnetic coil 62 will conduct magnetism to the wide column part 51 of the pressure relief part 50 through the first shell part 11 and the magnetic permeable plate 180, and generate a magnetic force on the wide column part 51, so that the overall pressure relief The member 50 moves from an initial position (as shown in FIG. 4 ) to a pressure release position (described later). As shown in FIG. 4 , when the pressure relief member 50 is in the initial position, the volume of the first chamber 150 is, for example, close to 0, and the wide column portion 51 of the pressure relief member 50 is pressed against the narrow portion 1104 of the valve member 110. The connecting port 1301 of the oil inlet passage 130 is opened, so that the oil inlet passage 130 communicates with the connecting passage 140 and the oil outlet passage 114 through the narrow diameter portion 1272 of the slide groove 127 of the second shell member 12 .

When the bicycle anti-lock brake device 1 is not in operation, the pressure relief member 50 of the bicycle anti-lock brake device 1 is located at the initial position. When the user operates the brake handle to brake, a pressure will be generated, and the pressure will pass through the brake handle, the oil pipe connected to the brake handle, the main oil passage 7112 of the seat body 71 of the sensing module 70, the oil inlet passage 130, the second housing The hydraulic oil in the narrow-diameter portion 1272 of the chute 127 of the member 12, the connecting channel 140, the oil outlet channel 114 and the oil pipe connected to the brake caliper is delivered to the brake caliper to force the brake caliper to brake. Meanwhile, please refer to FIG. 9 , which is a schematic cross-sectional view of the piston in FIG. 8 being pushed. The pressure also acts on the magnet 75 and the piston 73 through the hydraulic oil in the bypass channel 7113 of the seat body 71 , and drives the magnet 75 and the piston 73 to move and compress the elastic member 74 .

During the process of the hydraulic oil pushing the piston 73 and the magnet 75 to move, the sensor 72 will generate different potential differences due to the change of the magnetic density as the moving distance of the magnet 75 is different. Therefore, a comparison table can be compiled in advance. The table summarizes the relationship between the pressure of the hydraulic oil and the potential difference when the magnet 75 moves from the initial position to the final position, and this comparison table is pre-stored in the control unit (not shown) of the control circuit board 20 . Assume that the pressure of the hydraulic oil must reach 400 psi to determine that the bicycle is in the braking state, so the control unit can judge whether the bicycle is in the braking state by checking whether the potential difference sensed by the sensor 72 reaches the corresponding potential difference of 400 psi in the comparison table . In this way, with the information (such as potential difference) sensed by the sensor 72, the movement of the piston 73 can be sensed when the hydraulic oil pushes the piston 73, and it can be known indirectly that the hydraulic oil pressure in the main oil circuit 7112 meets the requirements of the bicycle. The pressure of the braking state can accurately determine that the bicycle is currently braking, so as to wake up the bicycle anti-lock braking device 1 when the bicycle is in the braking state.

In this embodiment, the wheel of the bicycle is provided with a wheel speed sensor (not shown), and the wheel speed sensor is electrically connected to the control circuit board 20 , for example. After the control circuit board 20 determines through the sensor 72 that the bicycle is in the braking state, the control circuit board 20 senses the wheel speed of the bicycle's wheels through the wheel speed sensor, and determines whether the wheels are likely to slip. If the wheel of the bicycle is likely to slip, the control circuit board 20 will energize the electromagnetic coil 62 , so that the integral pressure relief member 50 moves from the initial position to the pressure relief position, and compresses the elastic member 170 .

Please refer to FIG. 10 . FIG. 10 is a schematic cross-sectional view of the pressure relief member in FIG. 4 moving to the pressure relief position.

During the movement of the pressure relief member 50 to the pressure relief position, since the valve member 110 is no longer pressed by the wide column portion 51 of the pressure relief member 50, the elastic member 120 will force the sealing ring portion 1105 of the valve member 110 to close into the The connecting port 1301 of the oil passage 130 prevents the oil inlet passage 130 from communicating with the connecting passage 140 and the oil outlet passage 114 . As shown in Figure 10, when the pressure relief member 50 moves from the initial position to the pressure relief position, the volume of the first chamber 150 will increase due to the movement of the pressure relief member 50, and the volume of the second chamber 160 will increase due to the pressure relief. Movement of piece 50 is reduced. Since the width W7 of the first chamber 150 is greater than the width W8 of the second chamber 160, the increase in the volume of the first chamber 150 caused by the movement of the pressure relief member 50 will be greater than the decrease in the volume of the second chamber 160 Therefore, an additional pressure relief space is created in the first chamber 150 to release the pressure of the brake caliper.

Then, the control unit stops energizing the electromagnetic coil 62 . At this time, the magnetic force that originally pushed the pressure relief member 50 disappears, so the elastic member 170 will rebound, and the pressure relief member 50 is moved from the pressure relief position to the initial position, and the wide column portion 51 is pressed against the narrow valve member 110. part 1104 , so that the sealing ring part 1105 of the valve element 110 opens the communication port 1301 . In this way, the oil inlet passage 130 communicates with the oil outlet passage 114 , so that the oil pressure can be transmitted to the brake caliper to boost the brake caliper. If the control circuit board 20 judges that the wheel of the bicycle may slip again, then the electromagnetic coil 62 is energized again, so that the pressure relief member 50 releases pressure on the brake caliper. When the braking of the bicycle ends, the pressure of the hydraulic oil in the main oil circuit 7112 decreases, and the elastic member 74 drives the piston 73 to reset.

In this embodiment, the bicycle anti-lock braking device 1 may further include a temperature sensor 190 and a power sensor 200 . The temperature sensor 190 is, for example, disposed on the second surface 22 of the control circuit board 20 , and the power sensor 200 is, for example, disposed on the first surface 21 of the control circuit board 20 . The temperature sensor 190 is used to sense the temperature inside the housing 10 , and the power sensor 200 is used to sense the power provided for the bicycle anti-lock braking device 1 to operate.

It should be noted that the positions of the temperature sensor 190 and the power sensor 200 are not intended to limit the present invention, but the positions of the temperature sensor 190 and the power sensor 200 can be adjusted according to requirements.

When the temperature inside the casing 10 sensed by the temperature sensor 190 is higher than a predetermined value, the power sensed by the power sensor 200 is insufficient to provide the operation of the bicycle anti-lock braking device 1, or the wheel speed sensor fails, The bicycle anti-lock braking device 1 cannot normally carry out the above-mentioned operation. At this time, the control unit of the control circuit board 20 will make the light-emitting element 30 emit a warning light, and the warning light can be, for example, a constant light or a flashing light.

In this way, by passing the light guide 40 through the third shell 13 of the housing 10, one part of the light guide 40 is exposed from the third shell 13 of the housing 10, and the other part of the light guide 40 Located in the second space 14 of the casing 10 and corresponding to the light emitting element 30 , it can be used when the anti-lock braking device 1 of the bicycle is not expected due to conditions (such as high temperature, insufficient power supplied to it, or the wheel speed feeling matched with it). When the pressure of the brake caliper cannot be relieved, the warning light emitted by the light-emitting part 30 is guided outside through the light guide 40, so that the user can know the current anti-lock of the bicycle through the warning light from the outside. The dead brake device 1 and other related components have abnormal conditions, which can be eliminated immediately, so as to prevent the user from continuing to ride the bicycle when the bicycle anti-lock brake device 1 cannot operate normally.

Furthermore, the light emitting element 30 is located on the first surface 21 of the control circuit board 20 and directly contacts the first surface 21 of the control circuit board 20 , and is matched with the setting of the light guide element 40 penetrating through the third shell element 13 . Compared with the arrangement in which the light-emitting element is directly arranged on the third shell element 13, the wires and connectors electrically connecting the light-emitting element to the control circuit board 20 can be omitted, and the warning light can be used to remind the user of the bicycle at a relatively low cost. The effect of anti-lock braking device 1 not working properly.

In addition, when the bicycle anti-lock brake device 1 is installed on the front fork tube of the bicycle frame, the end surface 132 of the third shell 13 faces the user riding the bicycle, so the light guide 40 is exposed on the third shell The end surface 132 of 13 facilitates the user to observe the warning light emitted by the light emitting element 30 . However, the light guide element 40 is not limited to be exposed on the end surface 132 of the third shell element 13 . In other embodiments, the light guide can be adjusted to be exposed from other surfaces of the third shell or exposed from other shells according to actual needs.

Furthermore, the design of the narrow portion 42 of the light guide 40 abutting against the light emitting element 30 can make the light emitted by the light emitting element 30 incident on the light guide 40 intensively, thereby increasing the intensity of the light emitted from the light guide 40. brightness. It should be noted that the narrow portion 42 of the light guiding element 40 is not limited to abut against the light emitting element. In an embodiment thereof, the narrow portion of the light guiding member may be spaced from the light emitting member to correspond to the light emitting member.

It should be noted that the bicycle anti-lock braking device 1 is not limited to include the sensing module 70 . In other embodiments, the bicycle anti-lock brake device may not have a sensing module.

According to the bicycle anti-lock braking device disclosed in the above-mentioned embodiment, the light guide part passes through the third shell part of the housing, a part of the light guide part is exposed from the third shell part of the housing, and the light guide part The other part is located in the second space of the housing and corresponds to the luminous part, which can be used when the anti-lock brake device of the bicycle is under unexpected conditions (such as high temperature, insufficient power supplied to it or the wheel speed sensor matched with it) When the pressure of the brake caliper cannot be relieved, the warning light emitted by the light-emitting part is guided outside through the light guide, so that the user can know the current anti-lock braking device of the bicycle through the warning light from the outside. And other related components have abnormal conditions, which can be eliminated in real time, so as to prevent the user from continuing to ride the bicycle under the condition that the bicycle anti-brake locking device cannot operate normally.

Furthermore, since the light-emitting element is located on the first surface of the control circuit board and directly contacts the first surface of the control circuit board, and is arranged in conjunction with the light-guiding element penetrating through the third shell, compared with the arrangement of the light-emitting element directly on the The configuration on the third shell can save the wires and connectors that electrically connect the light-emitting part to the control circuit board, and can realize the use of warning light to remind the user that the bicycle anti-brake locking device cannot work normally at a relatively low cost. Effect.

In addition, when the bicycle anti-lock brake device is installed on the front fork pipe of the bicycle frame, the end surface of the third shell is facing the user riding the bicycle, so the exposure of the light guide on the end surface of the third shell is beneficial The user observes the warning light emitted by the luminous element.

Furthermore, the narrow portion of the light guide is designed to abut against the light-emitting element, so that the light emitted by the light-emitting element can be concentrated and incident on the light guide, thereby increasing the brightness of the light emitted from the light guide.

Although the present invention is disclosed above with the aforementioned preferred embodiments, it is not intended to limit the present invention. Any person familiar with the similar art can make some changes and modifications without departing from the spirit and scope of the present invention. Therefore, this The scope of patent protection for inventions shall be defined in the scope of patent application attached to this specification.

1: Bicycle anti-lock brake device 10: Housing 11: First shell piece 111: The first space 1111: the first storage unit 1112: the second storage part 112: Inner ring surface 113: threaded structure 114: oil outlet channel 12: The second shell 121: board body 122: The first annular side wall 1221: thread structure 123: Second annular side wall 14:Second space 125: guide column 126: Assembly column 127: Chute 1271: wide diameter part 1272: narrow diameter part 13: The third shell 132: end face 133: Outer ring surface 134,135: perforation 20: Control circuit board 21: First Surface 22: Second Surface 30: Luminous parts 40: Light guide 41: wide part 42: Narrow part 50: pressure relief parts 51: wide column part 511: guide groove 512: Through hole 513: slot 514: storage tank 52: narrow column part 521: Assembly Department 522: Extension 5221: Flange 523: Fluid channel 60: Driver 61: Spool 62: electromagnetic coil 70:Sensing module 71: seat body 711: Main body 7111: Fluid channel 7112: main oil circuit 7113: Bypass channel 71131: opening 7114: Oil entry section 7115: extension 71151: opening 712: Annular flange part 7121: first surface 7122: second surface 7123: perforation 71231: wide diameter section 71232: narrow diameter section 71233: Support surface 713: ring wall 72: Sensor 73: piston 731: Flange 74: Elastic parts 75: magnet 76,77: screw 80:Fixer 90: connector 91: Fluid channel 92: Assembly slot 100: positioning parts 1001: perforation 110: Valve 1101: fluid channel 1102: Bypass hole 1103: wide part 1104: Narrow part 1105: sealing ring part 120: elastic piece 130: oil inlet channel 1301: Connecting port 140: Connection channel 150: first chamber 160: second chamber 170: Elastic parts 180: Magnetic plate 190: temperature sensor 200: Power sensor 210: adhesive layer W1, W2, W3, W4, W5, W6, W7, W8: Width D1, D2: outer diameter T: distance L: Length

FIG. 1 is a schematic perspective view of a bicycle anti-lock braking device disclosed according to a first embodiment of the present invention. FIG. 2 is an exploded schematic diagram of FIG. 1 . FIG. 3 is an exploded schematic view from another perspective of FIG. 1 . FIG. 4 is a schematic cross-sectional view of FIG. 1 . FIG. 5 is an enlarged schematic cross-sectional view of FIG. 4 . FIG. 6 is a schematic cross-sectional view of part of FIG. 1 . FIG. 7 is an exploded schematic diagram of the sensing module in FIG. 1 . FIG. 8 is a schematic cross-sectional view of the sensing module in FIG. 7 . FIG. 9 is a schematic cross-sectional view of the piston in FIG. 8 being pushed. FIG. 10 is a schematic cross-sectional view of the pressure relief member in FIG. 4 moving to the pressure relief position.

1: Bicycle anti-lock brake device

10: shell

11: First shell piece

12: The second shell

13: The third shell

20: Control circuit board

30: Luminous parts

40: Light guide

Claims (12)

An anti-lock braking device for a bicycle, used to connect a brake caliper, comprising: a housing with a first space and a second space separated from each other; a control circuit board located in the second space of the housing , the side of the control circuit board away from the first space has a first surface; a light emitting element is located on the first surface of the control circuit board; a light guide is passed through the housing, the light guide One part is exposed from the housing, the other part of the light guide is located in the second space of the housing and corresponds to the light emitting part; a driving part is located in the first space of the housing, and the electric and a pressure relief part, located in the first space of the casing, and the pressure relief part is used to be driven by the driving part to release pressure on the brake caliper. The bicycle anti-lock braking device as claimed in claim 1, wherein the casing has an outer ring surface and an end surface, the outer ring surface is connected to the peripheral edge of the end surface, and a part of the light guiding member comes from the outer ring surface of the casing The end faces are exposed. The bicycle anti-lock braking device as described in claim 1 further includes a sensing module, the sensing module is located in the second space of the housing, and the sensing module includes a base and a sensor , the sensor is arranged on the base body and is electrically connected to the control circuit board, the base body has a fluid channel and a perforation that are not connected, and the sensor is used to obtain the pressure of the hydraulic oil in the fluid channel, And the part of the light guide member located in the second space of the housing passes through the through hole of the sensing module. The bicycle anti-lock braking device as described in claim 3, wherein the perforation has a connected wide diameter section and a narrow diameter section, the width of the wide diameter section is greater than the width of the narrow diameter section, and the narrow diameter section is smaller than that of the narrow diameter section. The wide-diameter section is close to the control circuit board, a support surface is formed between the wide-diameter section and the narrow-diameter section, and the light guide includes a connected wide section and a narrow section, the outer diameter of the wide section is larger than the The outer diameter of the narrow part, the wide part is inserted into the wide diameter section of the through hole and supported by the support surface, and the narrow part is passed through the narrow diameter section of the through hole. The bicycle anti-lock braking device as claimed in claim 3, wherein the gap between the light guide member and the inner wall of the through hole is filled by glue filling. The bicycle anti-lock brake device as described in claim 3, wherein the sensing module further includes a piston and an elastic member, the fluid passage has a main oil passage and a bypass passage, and the bypass passage is connected to the main oil passage , the piston is movably located in the bypass channel, the sensor is used to sense the movement of the piston when the hydraulic oil pushes the piston, and indirectly obtains the pressure of the hydraulic oil, the elastic member is arranged on the piston, and the elastic member is used To give the piston a force to move toward the main oil passage. The bicycle anti-lock braking device as claimed in claim 6, wherein the sensing module further includes a magnet combined with the piston, and the sensor is a Hall sensor. The bicycle anti-lock braking device as claimed in claim 1, wherein the light-emitting element directly contacts the first surface of the control circuit board. The bicycle anti-lock braking device as claimed in claim 1, wherein one end of the light guide is against the light emitting member. The bicycle anti-lock braking device as described in claim 1 further includes a temperature sensor and a power sensor, and the temperature sensor and the power sensor are arranged on the control circuit board. The bicycle anti-lock braking device as described in claim 1, further includes a seat body, the seat body is located in the second space, the seat body has a perforation, and the perforation hole has a wide diameter section and a narrow diameter section connected to each other. Section, the width of the wide-diameter section is greater than the width of the narrow-diameter section, the narrow-diameter section is closer to the control circuit board than the wide-diameter section, a support surface is formed between the wide-diameter section and the narrow-diameter section, and the light guide The component includes a wide part and a narrow part connected, the outer diameter of the wide part is larger than the outer diameter of the narrow part, the wide part is inserted in the wide diameter section of the perforation and fixed to the support through an adhesive layer surface, and the narrow portion is pierced through the narrow diameter section of the through hole. The bicycle anti-lock braking device as claimed in claim 11, wherein the distance from the supporting surface to the first surface of the control circuit board is greater than the axial length of the narrow portion of the light guide.

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