Bicycle speed meter

Abstract

The utility model discloses a bicycle stopwatch, belongs to the technical field of bicycle instruments, and aims to overcome the defect that an existing bicycle stopwatch is large in size. The bicycle stopwatch comprises a display screen and a circuit board, components are arranged on the two side faces of the circuit board, a fixing support is arranged on one side of the circuit board, the fixing support is provided with a fixing plate and supporting legs, the supporting legs are fixed to the circuit board, and an interval space is formed between the fixing plate and the circuit board. And the display screen is directly adhered to the fixing plate. The interval space between the fixing plate and the circuit board can contain components, the components can be arranged on the two sides of the circuit board, and the size of the circuit board can be reduced, so that the installation space needed by the circuit board is reduced, and the design size of the stopwatch is reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of bicycle instruments and relates to a bicycle speedometer. Background Art

[0002] A bicycle speedometer is a multi-functional integrated operation and control platform. With the continuous development and integration of new functions, and the continuous upgrading of consumers' personalized appearance selection, from the circuit (PCBA) design to the structural design to the novel appearance design, installation troubles caused by increased volume have been encountered.

[0003] Brake handles, speed regulators, handlebar grips, bells, etc. are generally installed on the handlebars of two-wheel assisted bicycles. When a speedometer is newly installed in a limited space, the design of the size of the speedometer will be restricted by many factors. In an existing speedometer, the circuit board and the display screen are directly pasted and fixed. In this way, electronic components can only be placed on one side of the circuit board, resulting in half of the utilization space of the circuit board, which is contrary to the extremely small design of the circuit board. The existing speedometer has the defect of large size and needs to be improved. Summary of the Invention

[0004] The utility model provides a bicycle speedometer aiming at the problems existing in the prior art, aiming to overcome the defect of large size of the existing bicycle speedometer.

[0005] The utility model is realized as follows:

[0006] A bicycle speedometer includes a display screen and a circuit board with components on both sides. It is characterized in that a fixed bracket is arranged on one side of the circuit board. The fixed bracket has a fixing plate and support feet. The support feet are fixed on the circuit board. There is a spaced space between the fixing plate and the circuit board. The display screen is directly bonded to the fixing plate.

[0007] The fixed bracket is made of metal and is welded to the circuit board.

[0008] The lower end of the support foot has a bent portion, and the bent portion abuts against the circuit board.

[0009] The fixing plate has a welding observation opening.

[0010] The speedometer includes a housing. The circuit board and the display screen are installed in the housing. A viewing window is provided at the upper end of the housing, and a viewing window cover plate is covered on the viewing window. There is a gap between the viewing window cover plate and the display screen.

[0011] A support platform and positioning columns are provided in the housing. The first end of the circuit board is placed on the support platform, and the second end has a positioning hole sleeved on the positioning column.

[0012] A guiding part is arranged in the housing corresponding to the second end of the circuit board. The upper surface of the guiding part has a guiding inclined surface, and the upper surface of the circuit board is lower than the guiding inclined surface.

[0013] The second end of the circuit board is clamped below the guiding part.

[0014] The utility model has the following beneficial effects: The spaced space between the fixing plate and the circuit board can accommodate components. Components can be arranged on both sides of the circuit board, which can reduce the size of the circuit board, thereby reducing the installation space required for the circuit board, and thus reducing the design size of the cyclocomputer. Description of the Drawings

[0015] Figure 1 It is a schematic structural diagram of a cyclocomputer;

[0016] Figure 2 It is an exploded structural diagram of a cyclocomputer;

[0017] Figure 3 It is a schematic cross-sectional structural diagram of a cyclocomputer;

[0018] Figure 4 It is a schematic partial structural diagram of a cyclocomputer;

[0019] Figure 5 It is a schematic structural diagram of the assembly of a display screen and a circuit board;

[0020] Figure 6 It is a schematic structural diagram of the assembly of a fixing bracket and a circuit board;

[0021] Figure 7 It is a schematic structural diagram of a partial housing.

[0022] Explanation of the reference numerals in the drawings: 100, housing; 110, support platform; 120, positioning column; 130, guiding part; 200, display screen; 300, circuit board; 400, fixing bracket; 410, support leg; 411, bending part; 420, fixing plate; 421, welding observation port; 500, window cover plate. Detailed Description of the Embodiment

[0023] The following will further elaborate on the specific implementation manners of the present utility model in conjunction with the accompanying drawings of the embodiments, so that the technical solutions of the present utility model are easier to understand and master. It should be understood that the specific embodiments described herein are only used to explain the present utility model and are not used to limit the present utility model.

[0024] This embodiment provides a bicycle cyclocomputer, as shown in Figure 1-7As shown, it includes a housing 100, a display screen 200, and a circuit board 300 with components on both sides. The circuit board 300 and the display screen 200 are installed in the housing 100. The upper end of the housing 100 is provided with a viewing window, and a viewing window cover plate 500 is covered on the viewing window. There is a gap between the viewing window cover plate 500 and the display screen 200. A fixing bracket 400 is arranged on one side of the circuit board 300. The fixing bracket 400 has a fixing plate 420 and a support leg 410. The support leg 410 is fixed on the circuit board 300. There is a spaced space between the fixing plate 420 and the circuit board 300. The display screen 200 is directly bonded to the fixing plate 420.

[0025] Avoiding the fitting and fixing of the display screen 200 and the viewing window cover plate 500 is beneficial to reducing the cost of the components related to the display screen 200. Keeping a gap between the viewing window cover plate 500 and the display screen 200 facilitates the installation of the viewing window cover plate 500 and reduces the risk of the viewing window cover plate 500 damaging the display screen 200. In other alternative embodiments, the viewing window cover plate 500 can also be in contact with the display screen 200.

[0026] Components are arranged on both sides of the circuit board 300, which can reduce the size of the circuit board 300, thereby reducing the space required for the installation of the circuit board 300, and thus being able to reduce the size of the housing 100, which is beneficial to the miniaturized design of the code meter.

[0027] Furthermore, the fixing bracket 400 is made of metal, and the fixing bracket 400 is welded to the circuit board 300. The support leg 410 is welded to the circuit board 300 through the SMT process. There is a welding observation port 421 on the fixing plate 420, and the welding process can be observed through the welding observation port 421. In addition, the metal fixing bracket 400 can also function as a protective cover, which can reduce the interference of external electromagnetic fields on the circuit board 300. The fully automatic SMT process can improve the manufacturing efficiency and reduce the assembly cost.

[0028] As Figure 6 shown, the lower end of the support leg 410 has a bent portion 411, and the bent portion 411 abuts against the circuit board 300. The bent portion 411 can increase the contact surface between the support leg 410 and the circuit board 300 and improve the connection firmness.

[0029] As Figure 3 、 4As shown in Figures 6 and 7, a support platform 110 and positioning posts 120 are provided inside the housing 100. The first end of the circuit board 300 is placed on the support platform 110, and the second end has a positioning hole sleeved on the positioning posts 120. A guiding portion 130 is provided inside the housing 100 corresponding to the second end of the circuit board 300. The upper surface of the guiding portion 130 has a guiding inclined surface, and the upper surface of the circuit board 300 is lower than the guiding inclined surface. The second end of the circuit board 300 is clamped below the guiding portion 130. During installation, first position the second end of the circuit board 300 on the positioning posts 120, and then, based on the guiding function of the guiding portion 130, press the first end of the circuit board 300 between the support platform 110 and the guiding portion 130, so that the support platform 110 and the guiding portion 130 clamp and fix the circuit board 300, improving the installation efficiency on the premise of ensuring the firm connection of the circuit board 300.

Claims

1. A bicycle computer, comprising a display screen (200) and a circuit board (300) having components on both sides thereof, characterized in that: A fixing bracket (400) is arranged on one side of the circuit board (300), the fixing bracket (400) comprising a fixing plate (420) and a supporting foot (410), the supporting foot (410) being fixed on the circuit board (300), a spacing space being provided between the fixing plate (420) and the circuit board (300), and the display screen (200) being directly bonded to the fixing plate (420).

2. A bicycle computer according to claim 1, characterized in that: The fixing bracket (400) is made of metal, and the fixing bracket (400) is welded on the circuit board (300).

3. A bicycle computer according to claim 1, characterized in that: The lower end of the supporting leg (410) has a bent portion (411), and the bent portion (411) abuts against the circuit board (300).

4. A bicycle computer according to claim 1, characterized in that: The fixing plate (420) is provided with a welding observation port (421).

5. A bicycle computer according to claim 1, characterized in that: The code computer comprises a housing (100), the circuit board (300) and the display screen (200) are installed in the housing (100), a viewing window is provided at the upper end of the housing (100), a viewing window cover (500) is provided on the viewing window, and a gap is provided between the viewing window cover (500) and the display screen (200).

6. A bicycle computer according to claim 5, characterized in that: A support platform (110) and a positioning column (120) are provided in the housing (100); a first end of the circuit board (300) is placed on the support platform (110), and a second end has a positioning hole and is sleeved on the positioning column (120).

7. A bicycle computer according to claim 6, characterized in that: A guide portion (130) is arranged in the housing (100) corresponding to the second end of the circuit board (300); the upper surface of the guide portion (130) has a guide slope, and the upper surface of the circuit board (300) is lower than the guide slope.

8. A bicycle computer according to claim 7, characterized in that: The second end of the circuit board (300) is clamped below the guide portion (130).

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