Method for assembling small navigation device

Abstract

The invention belongs to the technical field of electronic product assembly, and particularly relates to a small navigation device assembly method which is suitable for assembly of a navigation device with a compact structure and realizes assembly of a shell and a circuit board and connection between cabin sections. The method mainly comprises the steps that accessories are prepared; filling and sealing the second cabin section; filling vulcanized silicone rubber, connecting the cabin before curing the vulcanized silicone rubber, and waiting for curing the vulcanized silicone rubber; filling and sealing the first cabin section; removing redundant vulcanized silicone rubber; and reconnecting the cabin section. The invention has the main advantages that the space is saved, and the structure interference problem is prevented.

Description

Technical Field

[0001] The invention belongs to the technical field of electronic product assembly, and in particular relates to an assembly method of a small navigation device. Background Art

[0002] Small navigation devices primarily consist of a circuit board and a housing. More complex small navigation devices can include multiple modules, which are assembled to achieve complete product functionality. During module assembly, two connections must be ensured: the housing connection and the circuit signal connection.

[0003] One existing technology involves assembling the circuitry and housings of the two compartments separately, then using cables to connect the circuitry and signals between the compartments, and finally connecting the housings of the two compartments. The cables connect the circuitry of the two compartments using connectors or welding. However, the cables take up additional space. The disadvantage of this method is that it wastes space.

[0004] Another existing technique involves assembling the circuitry of the two compartments separately from the outer shell, with the compartments directly connected via connectors. This method requires both the outer shells and connectors of the two compartments to be aligned, requiring very high machining precision. Insufficient machining precision can lead to misalignment between the connectors and the outer shell, or vice versa, ultimately causing structural interference and assembly failure. A disadvantage of this method is the potential for structural interference, preventing assembly.

[0005] Existing methods have the disadvantage of wasting space or having the hidden danger of structural interference. Summary of the Invention

[0006] (1) Technical issues to be resolved

[0007] The technical problem to be solved by the present invention is: how to provide a small navigation device assembly method to make the small navigation device more compact and prevent structural interference under conditions of lower processing precision.

[0008] (2) Technical solution

[0009] To solve the problems of the prior art, the present invention provides a method for assembling a small navigation device, which comprises the following steps:

[0010] Step 1: Prepare accessories, including: a first compartment shell, a first compartment circuit board, a second compartment shell, and a second compartment circuit board; wherein the first compartment circuit board is welded with a first connector; and the second compartment circuit board is welded with a second connector; wherein the first compartment circuit board includes a processor, a gyroscope, and an accelerometer;

[0011] Step 2: Place the second compartment circuit board in the second compartment housing, expose the second connector, and pot the second compartment;

[0012] Step 3: Fill the space between the first compartment circuit board and the first compartment shell with vulcanized silicone rubber; before the vulcanized silicone rubber cures, plug the first connector into the second connector and dock the first compartment shell with the second compartment shell; and wait for the vulcanized silicone rubber to cure.

[0013] Step 4: Filling the first compartment;

[0014] Step 5: Separate the first compartment and the second compartment and remove excess vulcanized silicone rubber;

[0015] Step 6: Re-dock the first and second compartments.

[0016] Wherein, the first compartment shell and the second compartment shell are both cylindrical.

[0017] Wherein, the second compartment circuit board includes a laser detector.

[0018] Wherein, the second compartment circuit board includes a navigation satellite receiver.

[0019] Wherein, the second compartment circuit board includes a steering gear controller.

[0020] Wherein, the first compartment circuit board includes a magnetic sensor.

[0021] Wherein, the potting material in the potting process is epoxy resin.

[0022] Wherein, the potting material in the potting process is polyurethane.

[0023] (3) Beneficial effects

[0024] Compared with the prior art, the present invention has the following beneficial effects:

[0025] On the one hand, the present invention does not use additional cables, thus saving space and making the structure more compact; on the other hand, the present invention adopts a method of assembling first and then fixing, thus avoiding the problem of structural interference. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of step 1 of the present invention.

[0027] Figure 2 It is a schematic diagram of step 2 of the present invention.

[0028] Figure 3 Schematic diagram of step three of the present invention.

[0029] Figure 4 It is a schematic diagram of step four of the present invention.

[0030] Figure 5 It is a schematic diagram of step five of the present invention.

[0031] Figure 6 2 is a schematic diagram of step six of the present invention. DETAILED DESCRIPTION

[0032] In order to make the purpose, content, and advantages of the present invention more clear, the specific implementation methods of the present invention are further described in detail below with reference to the accompanying drawings and examples.

[0033] To solve the problems of the prior art, the present invention provides a method for assembling a small navigation device, which comprises the following steps:

[0034] Step 1: Prepare accessories, including: a first compartment shell, a first compartment circuit board, a second compartment shell, and a second compartment circuit board; wherein the first compartment circuit board is welded with a first connector; and the second compartment circuit board is welded with a second connector; wherein the first compartment circuit board includes a processor, a gyroscope, and an accelerometer;

[0035] Step 2: Place the second compartment circuit board in the second compartment housing, expose the second connector, and pot the second compartment;

[0036] Step 3: Fill the space between the first compartment circuit board and the first compartment shell with vulcanized silicone rubber; before the vulcanized silicone rubber cures, plug the first connector into the second connector and dock the first compartment shell with the second compartment shell; and wait for the vulcanized silicone rubber to cure.

[0037] Step 4: Filling the first compartment;

[0038] Step 5: Separate the first compartment and the second compartment and remove excess vulcanized silicone rubber;

[0039] Step 6: Re-dock the first and second compartments.

[0040] Wherein, the first compartment shell and the second compartment shell are both cylindrical.

[0041] Wherein, the second compartment circuit board includes a laser detector.

[0042] Wherein, the second compartment circuit board includes a navigation satellite receiver.

[0043] Wherein, the second compartment circuit board includes a steering gear controller.

[0044] Wherein, the first compartment circuit board includes a magnetic sensor.

[0045] Wherein, the potting material in the potting process is epoxy resin.

[0046] Wherein, the potting material in the potting process is polyurethane.

[0047] Example 1

[0048] The steps of this embodiment are as follows Figure 1 As shown, components are prepared, including a first compartment housing 101, a first compartment circuit board 102, a second compartment housing 201, and a second compartment circuit board 202. The first compartment circuit board 102 is soldered with a first connector 103. The second compartment circuit board 202 is soldered with a second connector 203. The first compartment circuit board 102 contains a processor, a gyroscope, and an accelerometer.

[0049] Step 2 Figure 2 As shown, the second compartment circuit 202 is placed in the second compartment housing 201. After filling with the second compartment potting material 204, potting is achieved. After potting, the second compartment circuit 202 is secured to the second compartment housing 201. The second connector 203 is exposed to facilitate connection to the first compartment in subsequent steps.

[0050] Step 3 Figure 3 As shown. Vulcanized silicone rubber 105 is filled between the first compartment circuit 102 and the first compartment shell 101. Vulcanized silicone rubber 105 has the characteristic of slow curing. After filling with vulcanized silicone rubber 105, the assembly operation is completed before curing. Connector 103 is plugged into the second connector 203, and the first compartment shell 101 is connected to the second compartment shell 201. Vulcanized silicone rubber 105 has two functions: first, it allows for assembly before curing to prevent structural interference; second, it blocks gaps to prevent overflow of the potting compound in subsequent steps.

[0051] Step 4 Figure 4 The first compartment is potted and filled with the first compartment potting material 104 .

[0052] Step 5 Figure 5 Separate the first and second compartments and remove excess vulcanized silicone rubber.

[0053] Step 6 Figure 6 As shown. Reconnect the first and second compartments to complete the assembly of the small navigation device.

[0054] The first compartment circuit board 102 includes a processor, a gyroscope, and an accelerometer, and is used to implement the functions of a small navigation device.

[0055] In a preferred solution, the first compartment circuit board 102 includes a magnetic sensor, that is, the first compartment circuit board 102 includes a processor, a gyroscope, an accelerometer, and a magnetometer, for realizing the functions of a small navigation device.

[0056] In a preferred embodiment, the second compartment circuit board 202 includes a laser detector.

[0057] In a preferred embodiment, the second compartment circuit board 202 includes a navigation satellite receiver.

[0058] In a preferred embodiment, the second compartment circuit board 202 includes a servo controller.

[0059] In a preferred solution, epoxy resin is selected as the potting material. Epoxy resin has high strength and can protect the circuit board inside the small navigation device.

[0060] In a preferred solution, polyurethane is selected as the potting material. Polyurethane has a low density and is conducive to reducing the weight of the small navigation device.

[0061] The first compartment potting material 104 and the second compartment potting material 204 may be made of the same material or different materials.

[0062] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A method for assembling a small navigation device, characterized in that: The small navigation device assembly method comprises the following steps: Step 1: Prepare accessories, including: a first compartment shell, a first compartment circuit board, a second compartment shell, and a second compartment circuit board; wherein the first compartment circuit board is welded with a first connector; and the second compartment circuit board is welded with a second connector; wherein the first compartment circuit board includes a processor, a gyroscope, and an accelerometer; Step 2: Place the second compartment circuit board in the second compartment housing, expose the second connector, and pot the second compartment; Step 3: Fill the space between the first compartment circuit board and the first compartment shell with vulcanized silicone rubber; before the vulcanized silicone rubber cures, plug the first connector into the second connector and dock the first compartment shell with the second compartment shell; and wait for the vulcanized silicone rubber to cure. Step 4: Filling the first compartment; Step 5: Separate the first compartment and the second compartment and remove excess vulcanized silicone rubber; Step 6: Re-dock the first and second compartments.

2. The method for assembling a small navigation device according to claim 1, wherein: The first compartment shell and the second compartment shell are both cylindrical.

3. The method for assembling a small navigation device according to claim 1, wherein: The second compartment circuit board includes a laser detector.

4. The method for assembling a small navigation device according to claim 1, wherein: The second compartment circuit board includes a navigation satellite receiver.

5. The method for assembling a small navigation device according to claim 1, wherein: The second compartment circuit board includes a steering gear controller.

6. The method for assembling a small navigation device according to claim 1, wherein: The first compartment circuit board includes a magnetic sensor.

7. The method for assembling a small navigation device according to claim 1, wherein: The potting material in the potting process is epoxy resin.

8. The method for assembling a small navigation device according to claim 1, wherein: The potting material in the potting process is polyurethane.

9. The method for assembling a small navigation device according to claim 1, wherein: The method does not use additional cables, thus saving space and making the structure more compact.

10. The method for assembling a small navigation device according to claim 1, wherein: The method adopts the mode of assembling first and then fixing, thereby avoiding the problem of structural interference.

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